STM32F2: STDIO_UART_TX and STDIO_UART_RX can be now user defined

Author: jeromecoutant

targets/TARGET_STM/TARGET_STM32F2/TARGET_NUCLEO_F207ZG/PinNames.h

@@ -227,6 +227,18 @@ typedef enum {
     D14         = PB_9,
     D15         = PB_8,
 
+    // STDIO for console print
+#ifdef MBED_CONF_TARGET_STDIO_UART_TX
+    STDIO_UART_TX = MBED_CONF_TARGET_STDIO_UART_TX,
+#else
+    STDIO_UART_TX = PD_8,
+#endif
+#ifdef MBED_CONF_TARGET_STDIO_UART_RX
+    STDIO_UART_RX = MBED_CONF_TARGET_STDIO_UART_RX,
+#else
+    STDIO_UART_RX = PD_9,
+#endif
+
     // Generic signals namings
     LED1        = PB_0,
     LED2        = PB_7,
@@ -235,10 +247,10 @@ typedef enum {
     USER_BUTTON = PC_13,
     // Standardized button names
     BUTTON1 = USER_BUTTON,
-    SERIAL_TX   = PD_8,
-    SERIAL_RX   = PD_9,
-    USBTX       = SERIAL_TX,
-    USBRX       = SERIAL_RX,
+    SERIAL_TX   = STDIO_UART_TX,
+    SERIAL_RX   = STDIO_UART_RX,
+    USBTX       = STDIO_UART_TX,
+    USBRX       = STDIO_UART_RX,
     I2C_SCL     = D15,
     I2C_SDA     = D14,
     SPI_MOSI    = PB_5, // Conflict between D11 and RMII RX Data Valid (PA7)
@@ -275,10 +287,6 @@ typedef enum {
     NC = (int)0xFFFFFFFF
 } PinName;
 
-#define STDIO_UART_TX  SERIAL_TX
-#define STDIO_UART_RX  SERIAL_RX
-#define STDIO_UART     UART_3
-
 #ifdef __cplusplus
 }
 #endif