USB device stack; Added getter method for terminal_connected;

Fork of USBDevice by mbed official

Example of use:

#include "mbed.h"
#include "USBSerial.h"

USBSerial  pc;
DigitalOut blue_led(P0_20);

int main() {
    blue_led = 1;
    while(!pc.getTerminal_connected()); //Wait for serial terminal to connect...
    while(1) {
        blue_led = 0;
        wait(0.2);
        blue_led = 1;
        wait(0.2);
    }
}
Revision:
45:0f216c4e75e5
Parent:
33:f85ada5a4cef
Child:
52:fb344268a308
--- a/USBDevice/USBHAL_STM32F4.cpp	Tue Mar 24 08:30:19 2015 +0000
+++ b/USBDevice/USBHAL_STM32F4.cpp	Thu Mar 26 14:30:20 2015 +0000
@@ -48,7 +48,7 @@
     // Enable power and clocking
     RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
 
-#if defined(TARGET_STM32F407VG) || defined(TARGET_STM32F401RE)
+#if defined(TARGET_STM32F407VG) || defined(TARGET_STM32F401RE) || defined(TARGET_STM32F411RE)
     pin_function(PA_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
     pin_function(PA_9, STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLDOWN, GPIO_AF10_OTG_FS));
     pin_function(PA_10, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_PULLUP, GPIO_AF10_OTG_FS));