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-rw-r--r--demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h15
-rw-r--r--demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F051-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F100-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F303-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F407-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32F429-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32L152-DISCOVERY/halconf.h15
-rw-r--r--demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h15
22 files changed, 330 insertions, 0 deletions
diff --git a/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h b/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
+++ b/demos/STM32/CMSIS-STM32F407-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F051-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F100-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32F303-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h b/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
+++ b/demos/STM32/NIL-STM32F373-STM32373C_EVAL/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h b/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
+++ b/demos/STM32/NIL-STM32L152-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F030R8-NUCLEO/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F051-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F100-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h b/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
+++ b/demos/STM32/RT-STM32F103-OLIMEX_STM32_P103/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h b/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F103RB-NUCLEO/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h b/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
index 7498bbe4d..8b3e041cc 100644
--- a/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F103_INEMO_DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F303-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h b/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F334R8-NUCLEO/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h b/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
+++ b/demos/STM32/RT-STM32F373-STM32373C_EVAL/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h b/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32F401RE-NUCLEO/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
index 5f178e287..487860fda 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY-G++/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
index 9ae7cf031..91aa66d8a 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY-MEMS/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F407-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h b/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
index 7498bbe4d..8b3e041cc 100644
--- a/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32F429-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h b/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
+++ b/demos/STM32/RT-STM32L152-DISCOVERY/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/
diff --git a/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h b/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
index 351dd61e9..ab3a6629b 100644
--- a/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
+++ b/demos/STM32/RT-STM32L152RE-NUCLEO/halconf.h
@@ -288,6 +288,21 @@
#endif
/*===========================================================================*/
+/* SERIAL_USB driver related setting. */
+/*===========================================================================*/
+
+/**
+ * @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
+ * buffers.
+ */
+#if !defined(SERIAL_USB_BUFFERS_SIZE) || defined(__DOXYGEN__)
+#define SERIAL_USB_BUFFERS_SIZE 256
+#endif
+
+/*===========================================================================*/
/* SPI driver related settings. */
/*===========================================================================*/