146 files changed, 291 insertions, 291 deletions
diff --git a/demos/AVR/NIL-ARDUINOMEGA/halconf.h b/demos/AVR/NIL-ARDUINOMEGA/halconf.h
index e67aee084..b25bef05a 100644
--- a/demos/AVR/NIL-ARDUINOMEGA/halconf.h
+++ b/demos/AVR/NIL-ARDUINOMEGA/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/AVR/NIL-ARDUINOUNO/halconf.h b/demos/AVR/NIL-ARDUINOUNO/halconf.h
index e67aee084..b25bef05a 100644
--- a/demos/AVR/NIL-ARDUINOUNO/halconf.h
+++ b/demos/AVR/NIL-ARDUINOUNO/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/AVR/RT-ARDUINOMEGA/halconf.h b/demos/AVR/RT-ARDUINOMEGA/halconf.h
index e67aee084..b25bef05a 100644
--- a/demos/AVR/RT-ARDUINOMEGA/halconf.h
+++ b/demos/AVR/RT-ARDUINOMEGA/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/AVR/RT-ARDUINOUNO/halconf.h b/demos/AVR/RT-ARDUINOUNO/halconf.h
index e67aee084..b25bef05a 100644
--- a/demos/AVR/RT-ARDUINOUNO/halconf.h
+++ b/demos/AVR/RT-ARDUINOUNO/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-FREEDOM-K20D50M-EXT/halconf.h b/demos/KINETIS/RT-FREEDOM-K20D50M-EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/demos/KINETIS/RT-FREEDOM-K20D50M-EXT/halconf.h
+++ b/demos/KINETIS/RT-FREEDOM-K20D50M-EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-FREEDOM-K20D50M/halconf.h b/demos/KINETIS/RT-FREEDOM-K20D50M/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/KINETIS/RT-FREEDOM-K20D50M/halconf.h
+++ b/demos/KINETIS/RT-FREEDOM-K20D50M/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-FREEDOM-KL25Z-EXT/halconf.h b/demos/KINETIS/RT-FREEDOM-KL25Z-EXT/halconf.h
index 31250a34d..cc9a6fca6 100644
--- a/demos/KINETIS/RT-FREEDOM-KL25Z-EXT/halconf.h
+++ b/demos/KINETIS/RT-FREEDOM-KL25Z-EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-FREEDOM-KL25Z/halconf.h b/demos/KINETIS/RT-FREEDOM-KL25Z/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/KINETIS/RT-FREEDOM-KL25Z/halconf.h
+++ b/demos/KINETIS/RT-FREEDOM-KL25Z/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-MCHCK-K20-GPT/halconf.h b/demos/KINETIS/RT-MCHCK-K20-GPT/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/demos/KINETIS/RT-MCHCK-K20-GPT/halconf.h
+++ b/demos/KINETIS/RT-MCHCK-K20-GPT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-MCHCK-K20-SPI/halconf.h b/demos/KINETIS/RT-MCHCK-K20-SPI/halconf.h
index 927022b05..7b8a8cf78 100644
--- a/demos/KINETIS/RT-MCHCK-K20-SPI/halconf.h
+++ b/demos/KINETIS/RT-MCHCK-K20-SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/KINETIS/RT-TEENSY3/halconf.h b/demos/KINETIS/RT-TEENSY3/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/KINETIS/RT-TEENSY3/halconf.h
+++ b/demos/KINETIS/RT-TEENSY3/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/LPC21xx/RT-LPC214x-OLIMEX/halconf.h b/demos/LPC21xx/RT-LPC214x-OLIMEX/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/LPC21xx/RT-LPC214x-OLIMEX/halconf.h
+++ b/demos/LPC21xx/RT-LPC214x-OLIMEX/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/NIL-SPC560D-EVB/halconf.h b/demos/SPC5/NIL-SPC560D-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/NIL-SPC560D-EVB/halconf.h
+++ b/demos/SPC5/NIL-SPC560D-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC560B-EVB/halconf.h b/demos/SPC5/RT-SPC560B-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC560B-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC560B-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC560D-EVB/halconf.h b/demos/SPC5/RT-SPC560D-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC560D-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC560D-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC560P-EVB/halconf.h b/demos/SPC5/RT-SPC560P-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC560P-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC560P-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC563M-EVB/halconf.h b/demos/SPC5/RT-SPC563M-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC563M-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC563M-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC564A-EVB/halconf.h b/demos/SPC5/RT-SPC564A-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC564A-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC564A-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC56EC-EVB/halconf.h b/demos/SPC5/RT-SPC56EC-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC56EC-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC56EC-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/SPC5/RT-SPC56EL-EVB/halconf.h b/demos/SPC5/RT-SPC56EL-EVB/halconf.h
index f04e0bd42..8ac6abde0 100644
--- a/demos/SPC5/RT-SPC56EL-EVB/halconf.h
+++ b/demos/SPC5/RT-SPC56EL-EVB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h b/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
+++ b/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/HAL-STM32F407-DISCOVERY/halconf.h b/demos/STM32/HAL-STM32F407-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/HAL-STM32F407-DISCOVERY/halconf.h
+++ b/demos/STM32/HAL-STM32F407-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h b/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
+++ b/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F031K6-NUCLEO32/halconf.h b/demos/STM32/RT-STM32F031K6-NUCLEO32/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F031K6-NUCLEO32/halconf.h
+++ b/demos/STM32/RT-STM32F031K6-NUCLEO32/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F042K6-NUCLEO32/halconf.h b/demos/STM32/RT-STM32F042K6-NUCLEO32/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F042K6-NUCLEO32/halconf.h
+++ b/demos/STM32/RT-STM32F042K6-NUCLEO32/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F072-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F072-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F072-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F072-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F072RB-NUCLEO/halconf.h b/demos/STM32/RT-STM32F072RB-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F072RB-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F072RB-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F091RC-NUCLEO/halconf.h b/demos/STM32/RT-STM32F091RC-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F091RC-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F091RC-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F103-MAPLEMINI/halconf.h b/demos/STM32/RT-STM32F103-MAPLEMINI/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/demos/STM32/RT-STM32F103-MAPLEMINI/halconf.h
+++ b/demos/STM32/RT-STM32F103-MAPLEMINI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h b/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
+++ b/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F103-STM3210E_EVAL-FATFS-USB/halconf.h b/demos/STM32/RT-STM32F103-STM3210E_EVAL-FATFS-USB/halconf.h
index 946b2ba37..7f2c3ddd5 100644
--- a/demos/STM32/RT-STM32F103-STM3210E_EVAL-FATFS-USB/halconf.h
+++ b/demos/STM32/RT-STM32F103-STM3210E_EVAL-FATFS-USB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h b/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h b/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F207-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F207-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F207-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F207-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F302R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32F302R8-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F302R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F302R8-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F303K8-NUCLEO32/halconf.h b/demos/STM32/RT-STM32F303K8-NUCLEO32/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F303K8-NUCLEO32/halconf.h
+++ b/demos/STM32/RT-STM32F303K8-NUCLEO32/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h b/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
+++ b/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F401C-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F401C-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F401C-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F401C-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h b/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
index 15cf73c6c..caa4a12d9 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
index c0dfc9520..f6499f6d6 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F407-OLIMEX_E407-LWIP-FATFS-USB/halconf.h b/demos/STM32/RT-STM32F407-OLIMEX_E407-LWIP-FATFS-USB/halconf.h
index b01198f13..7e60dab78 100644
--- a/demos/STM32/RT-STM32F407-OLIMEX_E407-LWIP-FATFS-USB/halconf.h
+++ b/demos/STM32/RT-STM32F407-OLIMEX_E407-LWIP-FATFS-USB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F411RE-NUCLEO/halconf.h b/demos/STM32/RT-STM32F411RE-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F411RE-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F411RE-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F746G-DISCOVERY-LWIP-FATFS-USB/halconf.h b/demos/STM32/RT-STM32F746G-DISCOVERY-LWIP-FATFS-USB/halconf.h
index 66d81b2e9..4e9cec094 100644
--- a/demos/STM32/RT-STM32F746G-DISCOVERY-LWIP-FATFS-USB/halconf.h
+++ b/demos/STM32/RT-STM32F746G-DISCOVERY-LWIP-FATFS-USB/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32F746G-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F746G-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32F746G-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F746G-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32L053R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32L053R8-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32L053R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32L053R8-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h b/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h b/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/STM32/RT-STM32L476RG-NUCLEO/halconf.h b/demos/STM32/RT-STM32L476RG-NUCLEO/halconf.h
index 30cf60a3b..fb56d6a38 100644
--- a/demos/STM32/RT-STM32L476RG-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32L476RG-NUCLEO/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/demos/various/RT-Win32-Simulator/halconf.h b/demos/various/RT-Win32-Simulator/halconf.h
index de352b913..e9a49ff0b 100644
--- a/demos/various/RT-Win32-Simulator/halconf.h
+++ b/demos/various/RT-Win32-Simulator/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/test/rt/testbuild/halconf.h b/test/rt/testbuild/halconf.h
index 5f1ab3981..87c418d5d 100644
--- a/test/rt/testbuild/halconf.h
+++ b/test/rt/testbuild/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/AVR/GPT/halconf.h b/testhal/AVR/GPT/halconf.h
index 4a0cb5604..7d756a23d 100644
--- a/testhal/AVR/GPT/halconf.h
+++ b/testhal/AVR/GPT/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/AVR/I2C/halconf.h b/testhal/AVR/I2C/halconf.h
index 46582feb5..cf6545690 100644
--- a/testhal/AVR/I2C/halconf.h
+++ b/testhal/AVR/I2C/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/AVR/ICU/halconf.h b/testhal/AVR/ICU/halconf.h
index 84e4989da..c1a9b7f1e 100644
--- a/testhal/AVR/ICU/halconf.h
+++ b/testhal/AVR/ICU/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/AVR/PWM/halconf.h b/testhal/AVR/PWM/halconf.h
index 6eced1f95..957df2b6e 100644
--- a/testhal/AVR/PWM/halconf.h
+++ b/testhal/AVR/PWM/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/KINETIS/ADC/halconf.h b/testhal/KINETIS/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/KINETIS/ADC/halconf.h
+++ b/testhal/KINETIS/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/KINETIS/I2C/halconf.h b/testhal/KINETIS/I2C/halconf.h
index 076ac3800..f2fc676b9 100644
--- a/testhal/KINETIS/I2C/halconf.h
+++ b/testhal/KINETIS/I2C/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/ADC/halconf.h b/testhal/STM32/STM32F0xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F0xx/ADC/halconf.h
+++ b/testhal/STM32/STM32F0xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/CAN/halconf.h b/testhal/STM32/STM32F0xx/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32F0xx/CAN/halconf.h
+++ b/testhal/STM32/STM32F0xx/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/EXT/halconf.h b/testhal/STM32/STM32F0xx/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32F0xx/EXT/halconf.h
+++ b/testhal/STM32/STM32F0xx/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32F0xx/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F0xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F0xx/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/PWM-ICU/halconf.h b/testhal/STM32/STM32F0xx/PWM-ICU/halconf.h
index 5be669e3e..c4bf90d5b 100644
--- a/testhal/STM32/STM32F0xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F0xx/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/SPI/halconf.h b/testhal/STM32/STM32F0xx/SPI/halconf.h
index c5e41a26e..4d18b0d38 100644
--- a/testhal/STM32/STM32F0xx/SPI/halconf.h
+++ b/testhal/STM32/STM32F0xx/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/UART/halconf.h b/testhal/STM32/STM32F0xx/UART/halconf.h
index ae6ea4423..b18bc0457 100644
--- a/testhal/STM32/STM32F0xx/UART/halconf.h
+++ b/testhal/STM32/STM32F0xx/UART/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F0xx/USB_CDC/halconf.h b/testhal/STM32/STM32F0xx/USB_CDC/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F0xx/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F0xx/USB_CDC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/ADC/halconf.h b/testhal/STM32/STM32F1xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F1xx/ADC/halconf.h
+++ b/testhal/STM32/STM32F1xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/CAN/halconf.h b/testhal/STM32/STM32F1xx/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32F1xx/CAN/halconf.h
+++ b/testhal/STM32/STM32F1xx/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/EXT/halconf.h b/testhal/STM32/STM32F1xx/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32F1xx/EXT/halconf.h
+++ b/testhal/STM32/STM32F1xx/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/I2C/halconf.h b/testhal/STM32/STM32F1xx/I2C/halconf.h
index 076ac3800..f2fc676b9 100644
--- a/testhal/STM32/STM32F1xx/I2C/halconf.h
+++ b/testhal/STM32/STM32F1xx/I2C/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32F1xx/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F1xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F1xx/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/PWM-ICU/halconf.h b/testhal/STM32/STM32F1xx/PWM-ICU/halconf.h
index 5be669e3e..c4bf90d5b 100644
--- a/testhal/STM32/STM32F1xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F1xx/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/RTC/halconf.h b/testhal/STM32/STM32F1xx/RTC/halconf.h
index a849c5d6d..e33d7f905 100644
--- a/testhal/STM32/STM32F1xx/RTC/halconf.h
+++ b/testhal/STM32/STM32F1xx/RTC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/SPI/halconf.h b/testhal/STM32/STM32F1xx/SPI/halconf.h
index f13517327..7ba74a4ce 100644
--- a/testhal/STM32/STM32F1xx/SPI/halconf.h
+++ b/testhal/STM32/STM32F1xx/SPI/halconf.h
@@ -293,7 +293,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -308,7 +308,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/UART/halconf.h b/testhal/STM32/STM32F1xx/UART/halconf.h
index ae6ea4423..b18bc0457 100644
--- a/testhal/STM32/STM32F1xx/UART/halconf.h
+++ b/testhal/STM32/STM32F1xx/UART/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/USB_CDC/halconf.h b/testhal/STM32/STM32F1xx/USB_CDC/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F1xx/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F1xx/USB_CDC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F1xx/USB_CDC_F107/halconf.h b/testhal/STM32/STM32F1xx/USB_CDC_F107/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F1xx/USB_CDC_F107/halconf.h
+++ b/testhal/STM32/STM32F1xx/USB_CDC_F107/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/ADC/halconf.h b/testhal/STM32/STM32F37x/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F37x/ADC/halconf.h
+++ b/testhal/STM32/STM32F37x/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/CAN/halconf.h b/testhal/STM32/STM32F37x/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32F37x/CAN/halconf.h
+++ b/testhal/STM32/STM32F37x/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/EXT/halconf.h b/testhal/STM32/STM32F37x/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32F37x/EXT/halconf.h
+++ b/testhal/STM32/STM32F37x/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/I2C/halconf.h b/testhal/STM32/STM32F37x/I2C/halconf.h
index 076ac3800..f2fc676b9 100644
--- a/testhal/STM32/STM32F37x/I2C/halconf.h
+++ b/testhal/STM32/STM32F37x/I2C/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/IRQ_STORM/halconf.h b/testhal/STM32/STM32F37x/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F37x/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F37x/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/PWM-ICU/halconf.h b/testhal/STM32/STM32F37x/PWM-ICU/halconf.h
index 5be669e3e..c4bf90d5b 100644
--- a/testhal/STM32/STM32F37x/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F37x/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/SDADC/halconf.h b/testhal/STM32/STM32F37x/SDADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F37x/SDADC/halconf.h
+++ b/testhal/STM32/STM32F37x/SDADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/SPI/halconf.h b/testhal/STM32/STM32F37x/SPI/halconf.h
index c5e41a26e..4d18b0d38 100644
--- a/testhal/STM32/STM32F37x/SPI/halconf.h
+++ b/testhal/STM32/STM32F37x/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/UART/halconf.h b/testhal/STM32/STM32F37x/UART/halconf.h
index ae6ea4423..b18bc0457 100644
--- a/testhal/STM32/STM32F37x/UART/halconf.h
+++ b/testhal/STM32/STM32F37x/UART/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F37x/USB_CDC/halconf.h b/testhal/STM32/STM32F37x/USB_CDC/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F37x/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F37x/USB_CDC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/ADC/halconf.h b/testhal/STM32/STM32F3xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F3xx/ADC/halconf.h
+++ b/testhal/STM32/STM32F3xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/ADC_DUAL/halconf.h b/testhal/STM32/STM32F3xx/ADC_DUAL/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F3xx/ADC_DUAL/halconf.h
+++ b/testhal/STM32/STM32F3xx/ADC_DUAL/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/CAN/halconf.h b/testhal/STM32/STM32F3xx/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32F3xx/CAN/halconf.h
+++ b/testhal/STM32/STM32F3xx/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/DAC/halconf.h b/testhal/STM32/STM32F3xx/DAC/halconf.h
index b735ef4e7..34c7d8b78 100644
--- a/testhal/STM32/STM32F3xx/DAC/halconf.h
+++ b/testhal/STM32/STM32F3xx/DAC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/EXT/halconf.h b/testhal/STM32/STM32F3xx/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32F3xx/EXT/halconf.h
+++ b/testhal/STM32/STM32F3xx/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32F3xx/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F3xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F3xx/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/PWM-ICU/halconf.h b/testhal/STM32/STM32F3xx/PWM-ICU/halconf.h
index 5be669e3e..c4bf90d5b 100644
--- a/testhal/STM32/STM32F3xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F3xx/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/SPI/halconf.h b/testhal/STM32/STM32F3xx/SPI/halconf.h
index c5e41a26e..4d18b0d38 100644
--- a/testhal/STM32/STM32F3xx/SPI/halconf.h
+++ b/testhal/STM32/STM32F3xx/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/UART/halconf.h b/testhal/STM32/STM32F3xx/UART/halconf.h
index ae6ea4423..b18bc0457 100644
--- a/testhal/STM32/STM32F3xx/UART/halconf.h
+++ b/testhal/STM32/STM32F3xx/UART/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/USB_CDC/halconf.h b/testhal/STM32/STM32F3xx/USB_CDC/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F3xx/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F3xx/USB_CDC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/USB_CDC_IAD/halconf.h b/testhal/STM32/STM32F3xx/USB_CDC_IAD/halconf.h
index 6a2c0c27c..edb90bd27 100644
--- a/testhal/STM32/STM32F3xx/USB_CDC_IAD/halconf.h
+++ b/testhal/STM32/STM32F3xx/USB_CDC_IAD/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F3xx/WDG/halconf.h b/testhal/STM32/STM32F3xx/WDG/halconf.h
index 66e95689c..368a18756 100644
--- a/testhal/STM32/STM32F3xx/WDG/halconf.h
+++ b/testhal/STM32/STM32F3xx/WDG/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/ADC/halconf.h b/testhal/STM32/STM32F4xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32F4xx/ADC/halconf.h
+++ b/testhal/STM32/STM32F4xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/CAN/halconf.h b/testhal/STM32/STM32F4xx/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32F4xx/CAN/halconf.h
+++ b/testhal/STM32/STM32F4xx/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/DAC/halconf.h b/testhal/STM32/STM32F4xx/DAC/halconf.h
index b735ef4e7..34c7d8b78 100644
--- a/testhal/STM32/STM32F4xx/DAC/halconf.h
+++ b/testhal/STM32/STM32F4xx/DAC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/DAC_DUAL/halconf.h b/testhal/STM32/STM32F4xx/DAC_DUAL/halconf.h
index b735ef4e7..34c7d8b78 100644
--- a/testhal/STM32/STM32F4xx/DAC_DUAL/halconf.h
+++ b/testhal/STM32/STM32F4xx/DAC_DUAL/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/DMA_STORM/halconf.h b/testhal/STM32/STM32F4xx/DMA_STORM/halconf.h
index 703a6ad33..dbbc00908 100644
--- a/testhal/STM32/STM32F4xx/DMA_STORM/halconf.h
+++ b/testhal/STM32/STM32F4xx/DMA_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/EXT/halconf.h b/testhal/STM32/STM32F4xx/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32F4xx/EXT/halconf.h
+++ b/testhal/STM32/STM32F4xx/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/GPT/halconf.h b/testhal/STM32/STM32F4xx/GPT/halconf.h
index 5726b2f01..262e59390 100644
--- a/testhal/STM32/STM32F4xx/GPT/halconf.h
+++ b/testhal/STM32/STM32F4xx/GPT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/I2C/halconf.h b/testhal/STM32/STM32F4xx/I2C/halconf.h
index 38582f471..d604d547c 100644
--- a/testhal/STM32/STM32F4xx/I2C/halconf.h
+++ b/testhal/STM32/STM32F4xx/I2C/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/I2S/halconf.h b/testhal/STM32/STM32F4xx/I2S/halconf.h
index 4b0f2af41..174cda59a 100644
--- a/testhal/STM32/STM32F4xx/I2S/halconf.h
+++ b/testhal/STM32/STM32F4xx/I2S/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32F4xx/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F4xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F4xx/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/IRQ_STORM_FPU/halconf.h b/testhal/STM32/STM32F4xx/IRQ_STORM_FPU/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F4xx/IRQ_STORM_FPU/halconf.h
+++ b/testhal/STM32/STM32F4xx/IRQ_STORM_FPU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/PWM-ICU/halconf.h b/testhal/STM32/STM32F4xx/PWM-ICU/halconf.h
index 5be669e3e..c4bf90d5b 100644
--- a/testhal/STM32/STM32F4xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F4xx/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/RTC/halconf.h b/testhal/STM32/STM32F4xx/RTC/halconf.h
index e373727e5..623105a3d 100644
--- a/testhal/STM32/STM32F4xx/RTC/halconf.h
+++ b/testhal/STM32/STM32F4xx/RTC/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/SDC/halconf.h b/testhal/STM32/STM32F4xx/SDC/halconf.h
index 819712f1b..1b4dd47ee 100644
--- a/testhal/STM32/STM32F4xx/SDC/halconf.h
+++ b/testhal/STM32/STM32F4xx/SDC/halconf.h
@@ -308,7 +308,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -323,7 +323,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/SPI/halconf.h b/testhal/STM32/STM32F4xx/SPI/halconf.h
index c5e41a26e..4d18b0d38 100644
--- a/testhal/STM32/STM32F4xx/SPI/halconf.h
+++ b/testhal/STM32/STM32F4xx/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/UART/halconf.h b/testhal/STM32/STM32F4xx/UART/halconf.h
index ae6ea4423..b18bc0457 100644
--- a/testhal/STM32/STM32F4xx/UART/halconf.h
+++ b/testhal/STM32/STM32F4xx/UART/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/USB_CDC/halconf.h b/testhal/STM32/STM32F4xx/USB_CDC/halconf.h
index 6082eaf3f..52ad8f2b2 100644
--- a/testhal/STM32/STM32F4xx/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F4xx/USB_CDC/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/USB_CDC_IAD/halconf.h b/testhal/STM32/STM32F4xx/USB_CDC_IAD/halconf.h
index 6082eaf3f..52ad8f2b2 100644
--- a/testhal/STM32/STM32F4xx/USB_CDC_IAD/halconf.h
+++ b/testhal/STM32/STM32F4xx/USB_CDC_IAD/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F4xx/WDG/halconf.h b/testhal/STM32/STM32F4xx/WDG/halconf.h
index 66e95689c..368a18756 100644
--- a/testhal/STM32/STM32F4xx/WDG/halconf.h
+++ b/testhal/STM32/STM32F4xx/WDG/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/GPT-ADC/halconf.h b/testhal/STM32/STM32F7xx/GPT-ADC/halconf.h
index 72ffff551..c4e21c1ed 100644
--- a/testhal/STM32/STM32F7xx/GPT-ADC/halconf.h
+++ b/testhal/STM32/STM32F7xx/GPT-ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32F7xx/IRQ_STORM/halconf.h
index 01b6a1fbf..f1940294f 100644
--- a/testhal/STM32/STM32F7xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32F7xx/IRQ_STORM/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/PWM-ICU/halconf.h b/testhal/STM32/STM32F7xx/PWM-ICU/halconf.h
index ba087be73..4f3ffdc15 100644
--- a/testhal/STM32/STM32F7xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32F7xx/PWM-ICU/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/SPI/halconf.h b/testhal/STM32/STM32F7xx/SPI/halconf.h
index 927022b05..7b8a8cf78 100644
--- a/testhal/STM32/STM32F7xx/SPI/halconf.h
+++ b/testhal/STM32/STM32F7xx/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/USB_CDC/halconf.h b/testhal/STM32/STM32F7xx/USB_CDC/halconf.h
index 6082eaf3f..52ad8f2b2 100644
--- a/testhal/STM32/STM32F7xx/USB_CDC/halconf.h
+++ b/testhal/STM32/STM32F7xx/USB_CDC/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32F7xx/USB_RAW/halconf.h b/testhal/STM32/STM32F7xx/USB_RAW/halconf.h
index 27d1d768c..84f2ff632 100644
--- a/testhal/STM32/STM32F7xx/USB_RAW/halconf.h
+++ b/testhal/STM32/STM32F7xx/USB_RAW/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L0xx/ADC/halconf.h b/testhal/STM32/STM32L0xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32L0xx/ADC/halconf.h
+++ b/testhal/STM32/STM32L0xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L0xx/EXT/halconf.h b/testhal/STM32/STM32L0xx/EXT/halconf.h
index 79b816982..c5c4f42c8 100644
--- a/testhal/STM32/STM32L0xx/EXT/halconf.h
+++ b/testhal/STM32/STM32L0xx/EXT/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L0xx/SPI/halconf.h b/testhal/STM32/STM32L0xx/SPI/halconf.h
index c5e41a26e..4d18b0d38 100644
--- a/testhal/STM32/STM32L0xx/SPI/halconf.h
+++ b/testhal/STM32/STM32L0xx/SPI/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/ADC/halconf.h b/testhal/STM32/STM32L1xx/ADC/halconf.h
index 96aad4d8b..8988bb901 100644
--- a/testhal/STM32/STM32L1xx/ADC/halconf.h
+++ b/testhal/STM32/STM32L1xx/ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/DAC/halconf.h b/testhal/STM32/STM32L1xx/DAC/halconf.h
index b735ef4e7..34c7d8b78 100644
--- a/testhal/STM32/STM32L1xx/DAC/halconf.h
+++ b/testhal/STM32/STM32L1xx/DAC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/EXT/halconf.h b/testhal/STM32/STM32L1xx/EXT/halconf.h
index 5db181e77..c2a5f2557 100644
--- a/testhal/STM32/STM32L1xx/EXT/halconf.h
+++ b/testhal/STM32/STM32L1xx/EXT/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/IRQ_STORM/halconf.h b/testhal/STM32/STM32L1xx/IRQ_STORM/halconf.h
index 0f04f1107..766c01506 100644
--- a/testhal/STM32/STM32L1xx/IRQ_STORM/halconf.h
+++ b/testhal/STM32/STM32L1xx/IRQ_STORM/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/PWM-ICU/halconf.h b/testhal/STM32/STM32L1xx/PWM-ICU/halconf.h
index 7726127d8..565a6cdfa 100644
--- a/testhal/STM32/STM32L1xx/PWM-ICU/halconf.h
+++ b/testhal/STM32/STM32L1xx/PWM-ICU/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/SPI/halconf.h b/testhal/STM32/STM32L1xx/SPI/halconf.h
index 42ab69b99..0519b165c 100644
--- a/testhal/STM32/STM32L1xx/SPI/halconf.h
+++ b/testhal/STM32/STM32L1xx/SPI/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L1xx/UART/halconf.h b/testhal/STM32/STM32L1xx/UART/halconf.h
index e15722846..ae83a931e 100644
--- a/testhal/STM32/STM32L1xx/UART/halconf.h
+++ b/testhal/STM32/STM32L1xx/UART/halconf.h
@@ -301,7 +301,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -316,7 +316,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L4xx/CAN/halconf.h b/testhal/STM32/STM32L4xx/CAN/halconf.h
index 1a2a6b24d..5fb995d43 100644
--- a/testhal/STM32/STM32L4xx/CAN/halconf.h
+++ b/testhal/STM32/STM32L4xx/CAN/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
diff --git a/testhal/STM32/STM32L4xx/GPT-ADC/halconf.h b/testhal/STM32/STM32L4xx/GPT-ADC/halconf.h
index 72ffff551..c4e21c1ed 100644
--- a/testhal/STM32/STM32L4xx/GPT-ADC/halconf.h
+++ b/testhal/STM32/STM32L4xx/GPT-ADC/halconf.h
@@ -294,7 +294,7 @@
  * @brief   Serial buffers size.
  * @details Configuration parameter, you can change the depth of the queue
  *          buffers depending on the requirements of your application.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
@@ -309,7 +309,7 @@
  * @brief   Serial over USB buffers size.
  * @details Configuration parameter, the buffer size must be a multiple of
  *          the USB data endpoint maximum packet size.
- * @note    The default is 64 bytes for both the transmission and receive
+ * @note    The default is 16 bytes for both the transmission and receive
  *          buffers.
  */
 #if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)