STM32L1 USB pins addition

Author: jeromecoutant

targets/TARGET_STM/TARGET_STM32L1/TARGET_NUCLEO_L152RE/PeripheralNames.h

@@ -74,6 +74,10 @@ typedef enum {
     PWM_11 = (int)TIM11_BASE
 } PWMName;
 
+typedef enum {
+    USB_FS = (int)USB_BASE,
+} USBName;
+
 #ifdef __cplusplus
 }
 #endif

targets/TARGET_STM/TARGET_STM32L1/TARGET_NUCLEO_L152RE/PeripheralPins.c

@@ -228,3 +228,11 @@ MBED_WEAK const PinMap PinMap_SPI_SSEL[] = {
     {PB_12,      SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF5_SPI2)},
     {NC, NC, 0}
 };
+
+//*** USBDEVICE ***
+
+MBED_WEAK const PinMap PinMap_USB_FS[] = {
+    {PA_11,     USB_FS, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, GPIO_AF_NONE)}, // USB_DM
+    {PA_12,     USB_FS, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, GPIO_AF_NONE)}, // USB_DP
+    {NC, NC, 0}
+};