File content as of revision 2:1b5f5a433ae8:

// Bye www.emcu.it
// Tested on NUCLEO_L152RE
// for more info see here: http://www.emcu.it/NUCLEOevaBoards/U2andL152/U2andL152.html#How_to_use_USART2
//
// This program send a character via USART2 and via USB (Virtual Com)
// USART2 is connected to STLINK that send data via USB.
// ATTENTION:
// For connect USART2 to D1/TX and D0/RX it is necessary do a bridge on SB63 and SB62 that are on the rear of NUCLEO_L152RE board.
// I suggest to use TeraTerm to connect the NUCLEO via CN1 (USB)
// Configure TeraTerm with these parameters:
// Baud: 9600 - Data: 8bit - Parity: None - Stop: 1bit - Flow Control: None

#include "mbed.h"
 
Serial pc(SERIAL_TX, SERIAL_RX);    // tx, rx USB Virtual COM


int main() {
    while(1) {
      
        if(pc.readable()) {
            pc.putc(pc.getc());
        }
       
        wait(0.1);
        pc.printf("E");

    }
}