main.c

使用摩托罗拉PC9CSDG128B单片机进行定时中断LCD显示

#include <hidef.h>      /* common defines and macros */
#include <mc9s12dg128.h>     /* derivative information */
#include "lcd1602.h"

#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"

unsigned int g,s,b,q,w,sw;

unsigned int TimBuf[3]; 

unsigned char word1[]="Happy everyday!",word2[]="Interval(minute)";

unsigned char hour[]="00";
unsigned char min[]="00";
unsigned char sec[]="00";
unsigned char maohao[]=":";
 


void IO_Init()
{
   DDRB=0XFF;
   DDRA=0XFF;
   PUCR=0X02;    //PORTB Pull_up
   
}

void ECT_Init()
{
  INTCR=0X00;
  TSCR1=0x80; 
  TSCR2=0x07; 
 // TSCR2=0x00;   
  TIE=0x01;     
  TIOS=0x01;     
  TCTL2=0x00;    
  TFLG1=0x01;  
  TC0=0xF424; 

}


void main(void) 
{


IO_Init();
ECT_Init();

  LCD_init();
  LCD_cmd(CLR_SCREEN);
  LCD_cmd(DISP_ON);
  LCD_cmd(CURSOR_OFF);
  //LCD_cmd(CURSOR_FLASH_OFF);
  LCD_write_string(0,0,word1);
  

  EnableInterrupts; 

for(;;) 
{
    PORTB=~TimBuf[0]; 
  
    LCD_write_string(1,0,hour);
    LCD_write_string(1,2,maohao);
    LCD_write_string(1,3,min);
    LCD_write_string(1,5,maohao); 
    LCD_write_string(1,6,sec);
   // LCD_write_string(1,2,maohao); 
    
   // LCD_write_string(0,2,word1);
   // LCD_write_string(0,1,word1); 
}
}


interrupt void ECT0_ISR()
{
  TFLG1=0x01;
 //秒，分，时，开始计时
TimBuf[0]++;

//PORTB=~TimBuf[0];  

if(TimBuf[0]>=60)
{
  TimBuf[0]=0;
  TimBuf[1]++;
    if(TimBuf[1]>=60)
   {
      TimBuf[1]=0;
      TimBuf[2]++;
        if(TimBuf[2]>=24)
      {
        TimBuf[2]=0;  
      }
   }
}
sw=TimBuf[2]/10;
w= TimBuf[2]%10;
q=TimBuf[1]/10;
b=TimBuf[1]%10;
s=TimBuf[0]/10;
g=TimBuf[0]%10; 


hour[0]=sw+0x30;
hour[1]=w+0x30;
min[0]=q+0x30;
min[1]=b+0x30;
sec[0]=s+0x30;
sec[1]=g+0x30;
//sec[0]=s+0x30;
//sec[1]=g+0x30;


}