Diff: targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c

Revision:

167:d5744491c362

Parent:

70:c1fbde68b492

Child:

174:8bb9f3a33240

--- a/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c	Tue Apr 22 16:00:06 2014 +0100
+++ b/targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/serial_api.c	Wed Apr 23 11:00:08 2014 +0100
@@ -34,20 +34,26 @@
 #include <string.h>
 
 static const PinMap PinMap_UART_TX[] = {
+    {PA_2,  UART_2, STM_PIN_DATA(GPIO_Mode_AF_PP, 0)},
     {PA_9,  UART_1, STM_PIN_DATA(GPIO_Mode_AF_PP, 0)},
-    {PA_2,  UART_2, STM_PIN_DATA(GPIO_Mode_AF_PP, 0)},
+    {PB_6,  UART_1, STM_PIN_DATA(GPIO_Mode_AF_PP, 3)}, // GPIO_Remap_USART1
+    {PB_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF_PP, 0)},
+    {PC_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF_PP, 5)}, // GPIO_PartialRemap_USART3
     {NC,    NC,     0}
 };
 
 static const PinMap PinMap_UART_RX[] = {
+    {PA_3,  UART_2, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0)},
     {PA_10, UART_1, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0)},
-    {PA_3,  UART_2, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0)},
+    {PB_7,  UART_1, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 3)}, // GPIO_Remap_USART1
+    {PB_11, UART_3, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0)},
+    {PC_11, UART_3, STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 5)}, // GPIO_PartialRemap_USART3
     {NC,    NC,     0}
 };
 
-#define UART_NUM (2)
+#define UART_NUM (3)
 
-static uint32_t serial_irq_ids[UART_NUM] = {0};
+static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
 
 static uart_irq_handler irq_handler;
 
@@ -60,12 +66,12 @@
   
     USART_Cmd(usart, DISABLE);
 
-    USART_InitStructure.USART_BaudRate = obj->baudrate;
-    USART_InitStructure.USART_WordLength = obj->databits;
-    USART_InitStructure.USART_StopBits = obj->stopbits;
-    USART_InitStructure.USART_Parity = obj->parity;
+    USART_InitStructure.USART_BaudRate            = obj->baudrate;
+    USART_InitStructure.USART_WordLength          = obj->databits;
+    USART_InitStructure.USART_StopBits            = obj->stopbits;
+    USART_InitStructure.USART_Parity              = obj->parity;
     USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+    USART_InitStructure.USART_Mode                = USART_Mode_Rx | USART_Mode_Tx;
     USART_Init(usart, &USART_InitStructure);
     
     USART_Cmd(usart, ENABLE);
@@ -90,7 +96,10 @@
     if (obj->uart == UART_2) {
         RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); 
     }
-            
+    if (obj->uart == UART_3) {
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE); 
+    }
+    
     // Configure the UART pins
     pinmap_pinout(tx, PinMap_UART_TX);
     pinmap_pinout(rx, PinMap_UART_RX);
@@ -106,6 +115,7 @@
     // The index is used by irq
     if (obj->uart == UART_1) obj->index = 0;
     if (obj->uart == UART_2) obj->index = 1;
+    if (obj->uart == UART_3) obj->index = 2;
     
     // For stdio management
     if (obj->uart == STDIO_UART) {
@@ -174,8 +184,15 @@
     }
 }
 
-static void uart1_irq(void) {uart_irq((USART_TypeDef*)UART_1, 0);}
-static void uart2_irq(void) {uart_irq((USART_TypeDef*)UART_2, 1);}
+static void uart1_irq(void) {
+    uart_irq((USART_TypeDef*)UART_1, 0);
+}
+static void uart2_irq(void) {
+    uart_irq((USART_TypeDef*)UART_2, 1);
+}
+static void uart3_irq(void) {
+    uart_irq((USART_TypeDef*)UART_3, 2);
+}
 
 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
     irq_handler = handler;
@@ -196,6 +213,11 @@
       irq_n = USART2_IRQn;
       vector = (uint32_t)&uart2_irq;
     }
+
+    if (obj->uart == UART_3) {
+      irq_n = USART3_IRQn;
+      vector = (uint32_t)&uart3_irq;
+    }
     
     if (enable) {