//Displaying numbers on all 7-Seg LEDs of Dragon12+ Trainer Board 
//with HCS12 Serial Monitor Program installed. This code is for CodeWarrior IDE
//On Dragon12+ board we have 4-digit common cathode 7-Seg LEDs
//PORTB drives 7-Seg LEDs (anode) See Page 24 of Dragon12+ User's Manual
//and PTP0-PTP3 provide grounds (cathode) to 7-Seg LEDs 
 
#include <hidef.h>      /* common defines and macros */
#include "derivative.h"      /* derivative-specific definitions */


  void MSDelay(unsigned int);
void main(void) 
{
  /* put your own code here */
  
    
        DDRB = 0xFF;        //PORTB output
        DDRP = 0xFF;        //PORTP output
for(;;)
      {
        PORTB = 0x5B;        //number 2
        PTP = 0x0E;          //on the most left digit of 7-Seg
        MSDelay(1);          //Increase the delay to 100ms on all 4 to see what heppens
 
        PORTB = 0x3F;
        PTP = 0x0D;
        MSDelay(1);
      
        PORTB = 0x06;
        PTP = 0x0B;
        MSDelay(1);
        
        PORTB = 0x7F;       //number 8
        PTP = 0x07;         //on the most right digit of 7-Seg
        MSDelay(1);
 

  }

 
}
 void MSDelay(unsigned int itime)  //millisec delay
  {
    unsigned int i; unsigned int j;
    for(i=0;i<itime;i++)
      for(j=0;j<4000;j++);
  }