上位机代码.docVIP

上位机代码 #include reg52.h #include ABSACC.h #include intrins.h #include stdio.h #include lcd1602.h #define uint unsigned int #define uchar unsigned char #define BYTE_BIT0 0x01 #define BYTE_BIT1 0x02 #define BYTE_BIT2 0x04 #define BYTE_BIT3 0x08 #define BYTE_BIT4 0x10 #define BYTE_BIT5 0x20 #define BYTE_BIT6 0x40 #define BYTE_BIT7 0x80 unsigned char const dofly[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f, 0x77,0x7c,0x39,0x5e,0x79,0x71};//0-F /*------------------------------------------------ 函数声明 ------------------------------------------------*/ uchar keyscan(void);//键盘扫描 void delay(uint i); //延时程序 /*------------------------------------------------ 主函数 ------------------------------------------------*/ void main() { uchar key; P2=0x00; //1数码管亮 按相应的按键，会显示按键上的字符 while(1) { key=keyscan(); //调用键盘扫描， switch(key) { case 0x7e:P0=dofly[0];break;//0 按下相应的键显示相对应的码值 case 0x7d:P0=dofly[1];break;//1 case 0x7b:P0=dofly[2];break;//2 case 0x77:P0=dofly[3];break;//3 case 0xbe:P0=dofly[4];break;//4 case 0xbd:P0=dofly[5];break;//5 case 0xbb:P0=dofly[6];break;//6 case 0xb7:P0=dofly[7];break;//7 case 0xde:P0=dofly[8];break;//8 case 0xdd:P0=dofly[9];break;//9 case 0xdb:P0=dofly[10];break;//a case 0xd7:P0=dofly[11];break;//b case 0xee:P0=dofly[12];break;//c case 0xed:P0=dofly[13];break;//d case 0xeb:P0=dofly[14];break;//e case 0xe7:P0=dofly[15];break;//f } } } /*------------------------------------------------ 键盘扫描程序 ------------------------------------------------*/ uchar keyscan(void) //键盘扫描函数，使用行列反转扫描法 { uchar cord_h,cord_l;//行列值中间变量 P3=0x0f; //行线输出全为0 cord_h=P30x0f; //读入列线值 if(cord_h!=0x0f) //先检测有无按键按下 { delay(100); //去抖 if(cord_h!=0x0f) { cord_h=P30x0f; //读入列线值 P3=cord_h|0xf0; //输出当前列线值 cord_l=P30xf0; //读入行线值 return(cord_h+cord_l);//键盘最后组合码值 } }return(0xff); //返回该值 } /*----------------------