uart.zip_uart接收程序_串口接收程序

#include <reg52.h> #include"1602display.h" #define uchar unsigned char #define uint unsigned int uchar code table[]={"0123456789abcdef"}; uchar code tx[]={0x11,0xaa,0xdd,0x3f}; uchar dat[8]; uchar rxdat=0,temp,fiag; void uart_temp0_init(void) { SCON = 0x70; //串口方式1,允许接收 TMOD = 0x21; //定时器1定时方式2，定时器0工作方式1 TCON = 0x50; //设定时器1和定时器0开始计数 TH1 = 0xFD; //11.0592MHz 9600波特率 TL1 = 0xFD; TH0 = 5000/256; TL0 = 5000%256; TR0 = 0; TR1 = 1; //启动定时器 } void main() { uchar x=0,y=0,z; uart_temp0_init(); a1602_init(); P2=0xff; EA=0; ET0=1; while(1) { if(P2!=0xff) { delay(20); while(P2!=0xff); //等待按键释放 fiag=1; if(fiag==1) { for(z=0;z<4;z++) { SBUF=tx[z];while(!TI);TI=0; } fiag=0; } } while(RI) { dat[x]=SBUF;RI=0; x++; } if(x>=5) { write_data(table[dat[y]>>4]); write_data(table[dat[y]&0x0f]); y++; if(y==5) { write_com(0x80); x=0;y=0; } } } } void temp0() interrupt 1 { TH0 = 5000/256; TL0 = 5000%256; temp++; }