uart.rar_love_串口屏 控制

#include <reg51.h> typedef unsigned char uint8; typedef unsigned int uint16; uint8 number[] = {0xC7,0xC0,0xC1,0x86}; uint8 Buf[]="LOVE\n"; sbit ENLED = P1^4; sbit ADDR0 = P1^0; sbit ADDR1 = P1^1; sbit ADDR2 = P1^2; sbit ADDR3 = P1^3; sbit LED = P0^0; /* * UART初始化 * 波特率：9600 */ void UART_init(void) { SCON = 0x50; // 10位uart，允许串行接受 TMOD = 0x20; // 定时器1工作在方式2（自动重装） TH1 = 0xFD; TL1 = 0xFD; TR1 = 1; } /* * UART 发送一字节 */ void UART_send_byte(uint8 dat) { SBUF = dat; while (TI == 0); TI = 0; } /* * UART 发送字符串 */ void UART_send_string(uint8 *buf) { while (*buf != '\0') { UART_send_byte(*buf++); } } void refresh() { static uint8 j = 0; switch(j) { case 0: j++; break; case 1: ADDR0 = 1;ADDR1 = 0;ADDR2 = 0;P0=number[3];j++;break; case 2: ADDR0 = 0;ADDR1 = 1;ADDR2 = 0;P0=number[2];j++;break; case 3: ADDR0 = 1;ADDR1 = 1;ADDR2 = 0;P0=number[1];j++;break; case 4: ADDR0 = 0;ADDR1 = 0;ADDR2 = 1;P0=number[0];j++;break; case 5: j=0;break; default: break; } } main() { uint8 i=0; ENLED = 0; ADDR3 = 1; UART_init(); while (1) { refresh(); UART_send_string(Buf); } }