timer.c

12位11通道AD转换芯片tlv2553,12位双通道DA转换芯片tlv5638

#include"group.h"

unsigned char count;
//-----------------------------------------------
void timer (void) interrupt 1 using 1   //中断亮灯程序
{   
    TH0=(65535-50000)/256; 
    TL0=(65535-50000)%256; 
    if(count==20) {count=0;}
    count++;
}