stc.rar_STC_stc C语言

#include <reg51.h> sbit ch451_dclk=P1^1; //串行数据时钟上升延激活 sbit ch451_din=P1^0; // 串行数据输出，接CH451的数据输入 sbit ch451_load=P1^2; //串行命令加载，上升延激活 #define CH451_RIGHTCYC 0x0303 //设置移动方式-右循 #define CH451_SYSOFF 0x0400 //关显示、键盘、看门狗 #define CH451_SYSON2 0x0403 //开显示、键盘 #define CH451_DIG0 0x0800 //数码管位0显示 #define CH451_DIG1 0x0900 //数码管位1显示 #define CH451_DIG2 0x0a00 //数码管位2显示 #define CH451_DIG3 0x0b00 //数码管位3显示 #define CH451_DIG4 0x0c00 //数码管位4显示 #define CH451_DIG5 0x0d00 //数码管位5显示 #define CH451_DIG6 0x0e00 //数码管位6显示 #define CH451_DIG7 0x0f00 //数码管位7显示 //***************************************************** //初始化子程序 void ch451_init() {P1=0x60; ch451_din=0; //先低后高，选择4线输入 ch451_din=1; #ifdef USE_KEY IT1=0; //设置下降沿触发 IE1=0; //清中断标志 PX1=0; //设置低优先级 EX1=1; //开中断 #endif } //***************************************************** //延时子程序 //*********************************************** //延时0.2秒子程序 void delay02s(void) { unsigned char i,j,k; for(i=20;i>0;i--) for(j=30;j>0;j--) for(k=248;k>0;k--); } //***************************************************** //输出命令子程序 //定义一无符号整型变量存储12字节的命令字。 void ch451_write(unsigned int command) { unsigned char i; #ifdef USE_KEY EX1=1; //允许键盘中断 #endif ch451_load=0; //命令开始 for(i=0;i<12;i++){ //送入12位数据，低位在前 ch451_din=command&1; ch451_dclk=0; command>>=1; ch451_dclk=1; //上升沿有效 } ch451_load=1; //加载数据 #ifdef USE_KEY EX1=1; #endif } #ifdef USE_KEY //*****************************************************主程序 void main() { uchar a,b,c,d; d=0; ch451_init(); //调用初始化 ch451_write(0x403); ch451_write(0x580); //测试送入命令 chch451_write(CH451_DIG0|0X00); //最低位显示0 delay02s(); chch451_write(CH451_DIG0|0X01); //最低位显示1 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X02); //最低位显示2 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X03); //最低位显示3 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X04); //最低位显示4 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X05); //最低位显示5 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X06); //最低位显示6 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X07); //最低位显示7 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X08); //最低位显示8 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X09); //最低位显示9 delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0a); //最低位显示a delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0b); //最低位显示b delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0c); //最低位显示c delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0d); //最低位显示d delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0e); //最低位显示e delay02s(); ch451_write(0x0303); //右循环 chch451_write(CH451_DIG0|0X0f); //最低位显示f delay02s(); ch451_write(0x0303); //右循环 }