File content as of revision 0:f58ee3dfd8d2:

#include "mbed.h"

DigitalOut myled(PD_13);
Serial device(PA_2,PA_3);

int i=0;
int main() {
    
    device.baud(115200);
    //device.printf("65A"); imprimir texto
    //  device.printf("-");
    //device.printf("%d",i);  //enviar entero
    //device.printf("%c",i);  //enviar character
    //device.printf("%x",i);   //enviar hexadecimal
    //device.printf("\n");
    i=0;
    while(i<255) {
        i++;
        device.printf("%c\r",i);
               } 
    i=0;
    while(i<255) {
        i++;
        device.printf("%d\r",i);
            }  
    i=0;  
    while(i<255){ 
        i++;
        device.printf("%x\r",i);
                }
    //    device.printf("%c\r",i); //enviar fin de carrera\r
    //device.printf("-");
    //device.printf("%d",i);  //enviar entero
    //device.printf("%c",i);  //enviar character
    //device.printf("%x",i);   //enviar hexadecimal
    //device.printf("\n");
    
}