main.cpp

00001 /* Program Example 6.2: Display counter for 0-99 
00002                                                               */
00003 #include "mbed.h"
00004 BusOut Seg1(p5,p6,p7,p8,p9,p10,p11,p12); // A,B,C,D,E,F,G,DP
00005 BusOut Seg2(p13,p14,p15,p16,p17,p18,p19,p20); 
00006 
00007 char SegConvert(char SegValue);     // function prototype
00008 int main() {                        // main program
00009   while (1) {                       // infinite loop
00010     for (char j=0;j<10;j++) {       // counter loop 1
00011       Seg2=SegConvert(j);           // tens column
00012       for (char i=0;i<10;i++) {     // counter loop 2
00013           Seg1=SegConvert(i);       // units column
00014           wait(0.2);     
00015       }
00016     }
00017   }
00018 }
00019 
00020 
00021 
00022 char SegConvert(char SegValue) {        // function 'SegConvert'
00023   char SegByte=0x00;
00024   switch (SegValue) {                   //DP G F E D C B A
00025     case 0 : SegByte = 0x3F;break;      // 0 0 1 1 1 1 1 1 binary
00026     case 1 : SegByte = 0x06;break;      // 0 0 0 0 0 1 1 0 binary
00027     case 2 : SegByte = 0x5B;break;      // 0 1 0 1 1 0 1 1 binary
00028     case 3 : SegByte = 0x4F;break;      // 0 1 0 0 1 1 1 1 binary
00029     case 4 : SegByte = 0x66;break;      // 0 1 1 0 0 1 1 0 binary
00030     case 5 : SegByte = 0x6D;break;      // 0 1 1 0 1 1 0 1 binary
00031     case 6 : SegByte = 0x7D;break;      // 0 1 1 1 1 1 0 1 binary
00032     case 7 : SegByte = 0x07;break;      // 0 0 0 0 0 1 1 1 binary
00033     case 8 : SegByte = 0x7F;break;      // 0 1 1 1 1 1 1 1 binary
00034     case 9 : SegByte = 0x6F;break;      // 0 1 1 0 1 1 1 1 binary
00035   }
00036     return SegByte;
00037 }
00038 
00039 
00040