15 files changed, 144 insertions, 14 deletions
diff --git a/humidity_sensors/.gitignore b/humidity_sensors/.gitignore
new file mode 100644
index 0000000..d63b3df
--- /dev/null
+++ b/humidity_sensors/.gitignore
@@ -0,0 +1 @@
+app/build
diff --git a/humidity_sensors/DISTRIB/en.stsw-stm8069.zip b/humidity_sensors/DISTRIB/en.stsw-stm8069.zip
new file mode 100644
index 0000000..e4815a6
--- /dev/null
+++ b/humidity_sensors/DISTRIB/en.stsw-stm8069.zip
diff --git a/humidity_sensors/DOC/8S003F3.pdf b/humidity_sensors/DOC/8S003F3.pdf
new file mode 100644
index 0000000..d9aea9b
--- /dev/null
+++ b/humidity_sensors/DOC/8S003F3.pdf
diff --git a/humidity_sensors/DOC/GATEMODE-YD3082E_C269866.pdf b/humidity_sensors/DOC/GATEMODE-YD3082E_C269866.pdf
new file mode 100644
index 0000000..8601f63
--- /dev/null
+++ b/humidity_sensors/DOC/GATEMODE-YD3082E_C269866.pdf
diff --git a/humidity_sensors/DOC/RM0016.pdf b/humidity_sensors/DOC/RM0016.pdf
new file mode 100644
index 0000000..39af8da
--- /dev/null
+++ b/humidity_sensors/DOC/RM0016.pdf
diff --git a/humidity_sensors/DOC/Sensirion_Humidity_Sensors_SHT20_Datasheet-1274196.pdf b/humidity_sensors/DOC/Sensirion_Humidity_Sensors_SHT20_Datasheet-1274196.pdf
new file mode 100644
index 0000000..ad7347e
--- /dev/null
+++ b/humidity_sensors/DOC/Sensirion_Humidity_Sensors_SHT20_Datasheet-1274196.pdf
diff --git a/humidity_sensors/DOC/XL7005A datasheet-English.pdf b/humidity_sensors/DOC/XL7005A datasheet-English.pdf
new file mode 100644
index 0000000..be3dd82
--- /dev/null
+++ b/humidity_sensors/DOC/XL7005A datasheet-English.pdf
diff --git a/humidity_sensors/DOC/cd00190271-stm8s-series-and-stm8af-series-8bit-microcontrollers-stmicroelectronics.pdf b/humidity_sensors/DOC/cd00190271-stm8s-series-and-stm8af-series-8bit-microcontrollers-stmicroelectronics.pdf
new file mode 100644
index 0000000..39af8da
--- /dev/null
+++ b/humidity_sensors/DOC/cd00190271-stm8s-series-and-stm8af-series-8bit-microcontrollers-stmicroelectronics.pdf
diff --git a/humidity_sensors/DOC/stm8s003f3.pdf b/humidity_sensors/DOC/stm8s003f3.pdf
new file mode 100644
index 0000000..d9aea9b
--- /dev/null
+++ b/humidity_sensors/DOC/stm8s003f3.pdf
diff --git a/humidity_sensors/app/Makefile b/humidity_sensors/app/Makefile
new file mode 100644
index 0000000..01d0888
--- /dev/null
+++ b/humidity_sensors/app/Makefile
@@ -0,0 +1,51 @@
+CSRCS=main.c  util.c uart.c i2c_bb.c clock.c gpio.c sht20.c stm8s_it.c awu.c
+PROG=build/main.hex
+LIBS=
+SPL_CSRCS = 
+
+SPL_ROOT=../STM8S_StdPeriph_Lib
+SPL_SRC = $(SPL_ROOT)/Libraries/STM8S_StdPeriph_Driver/src
+SPL_INC = $(SPL_ROOT)/Libraries/STM8S_StdPeriph_Driver/inc
+
+CFLAGS=--opt-code-size --std-sdcc99 --all-callee-saves --verbose --stack-auto --fverbose-asm --float-reent
+CPPFLAGS=-I./ -I${SPL_INC} -DSTM8S003 
+CC=sdcc-sdcc -mstm8 
+AS=sdcc-sdasstm8
+STM8FLASH=../stm8flash/stm8flash  
+
+LIBOBJ=${SPL_CSRCS:%.c=build/%.rel}
+OBJS=${CSRCS:%.c=build/%.rel} ${SPL_CSRCS:%.c=build/%.rel}
+
+${PROG}: ${OBJS} 
+	${CC} ${CFLAGS} ${CPPFLAGS} -o $@ ${OBJS}
+
+build/%.rel:${SPL_SRC}/%.c
+	${CC} ${CFLAGS} ${CPPFLAGS} -o $@ -c $<
+
+build/%.rel:%.c
+	${CC} ${CFLAGS} ${CPPFLAGS} -o $@ -c $<
+
+
+flash: ${PROG} ${STM8FLASH}
+	${STM8FLASH} -c stlinkv2 -p stm8s003?3 -s flash -w ${PROG}
+
+${STM8FLASH}:
+	make -C $(dir $@)
+
+
+tidy:
+	astyle -A3 -s2 --attach-extern-c -L -c -w -Y -m0 -f -p  -H -U -k3 -xj -xd ${CSRCS} 
+
+protos:
+	echo > prototypes.h
+	cproto -E "${CC} -E ${CPPFLAGS} -D__trap= -D__interrupt\(a\)= -DPROTOS" ${CSRCS} > prototypes.h.tmp
+	/bin/mv -f prototypes.h.tmp prototypes.h
+
+clean:
+	/bin/rm -rf build *~ *.orig
+
+$(shell mkdir -p build)
+ 
+
+
+
diff --git a/humidity_sensors/app/awu.c b/humidity_sensors/app/awu.c
new file mode 100644
index 0000000..18cf1f8
--- /dev/null
+++ b/humidity_sensors/app/awu.c
@@ -0,0 +1,70 @@
+#include "project.h"
+
+/** Contains the different values to write in the APR register (used by AWU_Init function) */
+CONST uint8_t APR_Array[17] =
+    {
+        0, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 61, 23, 23, 62
+    };
+
+/** Contains the different values to write in the TBR register (used by AWU_Init function) */
+CONST uint8_t TBR_Array[17] =
+    {
+        0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 12, 14, 15, 15
+    };
+
+
+FlagStatus AWU_GetFlagStatus(void)
+{
+  return((FlagStatus)(((uint8_t)(AWU->CSR & AWU_CSR_AWUF) == (uint8_t)0x00) ? RESET : SET));
+}
+
+
+INTERRUPT_HANDLER (AWU_IRQHandler, 1)
+{
+  AWU_GetFlagStatus();
+}
+
+
+void AWU_Init(AWU_Timebase_TypeDef AWU_TimeBase)
+{
+  /* Enable the AWU peripheral */
+  AWU->CSR |= AWU_CSR_AWUEN;
+  
+  /* Set the TimeBase */
+  AWU->TBR &= (uint8_t)(~AWU_TBR_AWUTB);
+  AWU->TBR |= TBR_Array[(uint8_t)AWU_TimeBase];
+  
+  /* Set the APR divider */
+  AWU->APR &= (uint8_t)(~AWU_APR_APR);
+  AWU->APR |= APR_Array[(uint8_t)AWU_TimeBase];
+}
+
+
+void AWU_LSICalibrationConfig(uint16_t lsifreqkhz)
+{
+  uint16_t A = 0x0;
+  
+  
+  /* Calculation of AWU calibration value */
+  
+  A = (uint16_t)(lsifreqkhz >> 2U); /* Division by 4, keep integer part only */
+  
+  if ((4U * A) >= ((lsifreqkhz - (4U * A)) * (1U + (2U * A))))
+  {
+    AWU->APR = (uint8_t)(A - 2U);
+  }
+  else
+  {
+    AWU->APR = (uint8_t)(A - 1U);
+  }
+}
+
+
+void awu_init(void)
+{
+
+    AWU_LSICalibrationConfig(128);
+    AWU_Init(AWU_TIMEBASE_1S);
+}
+
+
diff --git a/humidity_sensors/app/main.c b/humidity_sensors/app/main.c
index a94d681..d7f5908 100644
--- a/humidity_sensors/app/main.c
+++ b/humidity_sensors/app/main.c
@@ -10,9 +10,12 @@ main (void)
   uart_init();
   i2cb_init();
 
+  awu_init();
+
   sht20_reset();
 
-  //enableInterrupts ();
+
+  enableInterrupts ();
 
   for (;;) {
     printf ("$SNTHD,%s,%s\n", sht20_temp_s(), sht20_humid_s());
@@ -22,6 +25,6 @@ main (void)
         sht20_reset();
     }
 
-    delay_ms (1000);
+    halt();
   }
 }
diff --git a/humidity_sensors/app/prototypes.h b/humidity_sensors/app/prototypes.h
index 35dbcd9..db8c949 100644
--- a/humidity_sensors/app/prototypes.h
+++ b/humidity_sensors/app/prototypes.h
@@ -1,30 +1,29 @@
 /* main.c */
 void main(void);
 /* util.c */
-void assert_failed(uint8_t *file, uint32_t line);
-void delay(volatile uint32_t n);
-void delay_ms(volatile uint32_t n);
+void delay(volatile u32 n);
+void delay_ms(volatile u32 n);
 int putchar(int c);
 /* uart.c */
-void uart_tx(uint8_t d);
-int uart_rx(uint8_t *d);
+void uart_tx(u8 d);
+int uart_rx(u8 *d);
 void uart_init(void);
 /* i2c_bb.c */
-uint8_t i2cb_send(uint8_t wot);
-uint8_t i2cb_send_addr(uint8_t addr, uint8_t rnw);
-int i2cb_send_data(uint8_t d);
-uint8_t i2cb_read(uint8_t ack);
+u8 i2cb_send(u8 wot);
+u8 i2cb_send_addr(u8 addr, u8 rnw);
+int i2cb_send_data(u8 d);
+u8 i2cb_read(u8 ack);
 void i2cb_start(void);
 void i2cb_stop(void);
-int i2cb_start_transaction(uint8_t a, uint8_t rnw);
+int i2cb_start_transaction(u8 a, u8 rnw);
 void i2cb_reset(void);
 void i2cb_init(void);
 /* clock.c */
-uint32_t CLK_GetClockFreq(void);
+u32 CLK_GetClockFreq(void);
 void clock_init(void);
 void CLK_PeripheralClockConfig(CLK_Peripheral_TypeDef CLK_Peripheral, FunctionalState NewState);
 /* gpio.c */
-uint8_t GPIO_ReadInputData(GPIO_TypeDef *GPIOx);
+u8 GPIO_ReadInputData(GPIO_TypeDef *GPIOx);
 void GPIO_WriteHigh(GPIO_TypeDef *GPIOx, GPIO_Pin_TypeDef PortPins);
 void GPIO_WriteLow(GPIO_TypeDef *GPIOx, GPIO_Pin_TypeDef PortPins);
 void GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_Pin_TypeDef GPIO_Pin, GPIO_Mode_TypeDef GPIO_Mode);
@@ -33,3 +32,7 @@ void sht20_reset(void);
 char *sht20_temp_s(void);
 char *sht20_humid_s(void);
 /* stm8s_it.c */
+/* awu.c */
+void AWU_Init(AWU_Timebase_TypeDef AWU_TimeBase);
+void AWU_LSICalibrationConfig(uint16_t lsifreqkhz);
+void awu_init(void);
diff --git a/humidity_sensors/app/stm8s_it.c b/humidity_sensors/app/stm8s_it.c
index 5a30096..864297c 100644
--- a/humidity_sensors/app/stm8s_it.c
+++ b/humidity_sensors/app/stm8s_it.c
@@ -92,6 +92,7 @@ INTERRUPT_HANDLER (TLI_IRQHandler, 0)
    */
 }
 
+#if 0
 /**
   * @brief Auto Wake Up Interrupt routine.
   * @param  None
@@ -103,6 +104,7 @@ INTERRUPT_HANDLER (AWU_IRQHandler, 1)
      it is recommended to set a breakpoint on the following instruction.
    */
 }
+#endif
 
 /**
   * @brief Clock Controller Interrupt routine.
diff --git a/humidity_sensors/stm8flash b/humidity_sensors/stm8flash
-Subproject cdafc4638d714ed1a5250cac794b5b28e5cbfa0
+Subproject 34554cf495d274d575f3533ebfc28764064bd8f