File content as of revision 0:e23542fc146a:

#include "mbed.h"
BusOut Seg1(p5,p6,p7,p8,p9,p10,p11,p12); // A,B,C,D,E,F,G,DP
BusOut Seg2(p13,p14,p15,p16,p17,p18,p19,p20);
char SegConvert(char SegValue); // function prototype
int main()   // main program
{
    while (1) { // infinite loop
        for (char j=0; j<10; j++) { // counter loop 1
            Seg2=SegConvert(j); // tens column
            for (char i=0; i<10; i++) { // counter loop 2
                Seg1=SegConvert(i); // units column
                wait(0.2);
            }
        }
    }
}
char SegConvert(char SegValue)   // function 'SegConvert'
{
    char SegByte=0x00;
    switch (SegValue) { //DPGFEDCBA
        case 0 :
            SegByte = 0x3F;
            break; // 00111111 binary
        case 1 :
            SegByte = 0x06;
            break; // 00000110 binary
        case 2 :
            SegByte = 0x5B;
            break; // 01011011 binary
        case 3 :
            SegByte = 0x4F;
            break; // 01001111 binary
        case 4 :
            SegByte = 0x66;
            break; // 01100110 binary
        case 5 :
            SegByte = 0x6D;
            break; // 01101101 binary
        case 6 :
            SegByte = 0x7D;
            break; // 01111101 binary
        case 7 :
            SegByte = 0x07;
            break; // 00000111 binary
        case 8 :
            SegByte = 0x7F;
            break; // 01111111 binary
        case 9 :
            SegByte = 0x6F;
            break; // 01101111 binary
    }
    return SegByte;
}