新手写的51单片机定时器按键扫描

凉面ya

于 2025-02-13 16:28:16 发布

阅读量632

点赞数 26

CC 4.0 BY-SA版权

文章标签：单片机嵌入式硬件 51单片机蓝桥杯

本文链接：https://blog.youkuaiyun.com/liangmianya1893/article/details/145614706

//#include "STC15F2K60S2.H"
#include "reg52.h"
#include "intrins.h"
#include "absacc.h"
//-----------------下方设置变量------------------
sfr AUXR=0x8e;//sfr 关键字把地址为 0x8E 的特殊功能寄存器取名为 AUXR

unsigned char code SMG[18]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};

unsigned char pos5,pos6,pos7;

unsigned char scanpoint=0;

unsigned char key_v,key_s=0;

int number=0;
//-----------------------------------------------

void Delay10ms() //@11.0592MHz
{
unsigned char i, j;

   i = 108;
   j = 145;
   do
   {
       while (--j);
   } while (--i);
}

void Select573(unsigned char channel)
{
   switch (channel)
   {
       case 4:
       {
           P2=(P2&0x1f)|0x80;
       break;}

           case 5:
&nb