File content as of revision 0:208c883dc5fa:

#include "mbed.h"
#define     BAUDRATE0       1200
Serial pc(PTE20,PTE21);
//#include "TextLCD.h"

BusIn colonne(PTC6,PTC5,PTC4,PTC3,PTC0,PTC7);
BusOut righe(PTA1,PTA2,PTA12,PTA4,PTA5);
//TextLCD lcd(PTE5,PTE4,PTE3,PTE2,PTB11,PTB10);

char Keypad(void)
{
    char key = 100;
  //  righe.write(31);//11111
  //  switch(colonne) {
  //      case 31:
  //          key = 1;
  //          break;//011111
  //      case 47:
  //          key = 2;
  //          break;//101111
  //      case 55:
  //          key = 3;
  //          break;//110111
  //      case 59:
  //          key = 4;
  //          break;//111011
  //      case 61:
  //          key = 5;
  //          break;//111101
  //      case 62:
  //          key = 6;
  //          break;//111110
 //   }
    righe.write(30);//11110
    switch(colonne) {
        case 31:
            key = 7;
            break;//011111
        case 47:
            key = 8;
            break;//101111
        case 55:
            key = 9;
            break;//110111
        case 59:
            key = 10;
            break;//111011
        case 61:
            key = 11;
            break;//111101
        case 62:
            key = 12;
            break;//111110
    }
    righe.write(29);
    switch(colonne) {
        case 31:
            key = 13;
            break;//011111
        case 47:
            key = 14;
            break;//101111
        case 55:
            key = 15;
            break;//110111
        case 59:
            key = 16;
            break;//111011
        case 61:
            key = 17;
            break;//111101
        case 62:
            key = 18;
            break;//111110
    }
    righe.write(27);//11011
    switch(colonne) {
        case 31:
            key = 19;
            break;//011111
        case 47:
            key = 20;
            break;//101111
        case 55:
            key = 21;
            break;//110111
        case 59:
            key = 22;
            break;//111011
        case 61:
            key = 23;
            break;//111101
        case 62:
            key = 24;
            break;//111110
    }
    righe.write(23);//10111
    switch(colonne) {
        case 31:
            key = 25;
            break;//011111
        case 47:
            key = 26;
            break;//101111
        case 55:
            key = 27;
            break;//110111
        case 59:
            key = 28;
            break;//111011
        case 61:
            key = 29;
            break;//111101
        case 62:
            key = 30;
            break;//111110
    }
    righe.write(15);//01111
    switch(colonne) {
        case 31:
            key = 31;
            break;//011111
        case 47:
            key = 32;
            break;//101111
        case 55:
            key = 33;
            break;//110111
        case 59:
            key = 34;
            break;//111011
        case 61:
            key = 35;
            break;//111101
        case 62:
            key = 36;
            break;//111110
    }
    return key;
}

int main(void)
{
    pc.baud( BAUDRATE0 );
    char key;
    // lcd.cls();
    while(1) {
        //  lcd.cls();
      //  key = Keypad();
        pc.printf("k\n");
      //  if(key != 100) {
      //      pc.printf("keypad = %f\n", key);
      //
  }
        //     lcd.printf("%c\n\r",&key);
        wait(0.2);
    }
}