很好的发送串口接收程序

/*==================================== *名称：lcd_str.c *功能：从串口调试工具发送一字符串到单片机，在lcd1602上显示【未加入校验】 *作者：flying 09-2-23 *修改： ======================================*/ #include<reg51.h> #define uchar unsigned char #define uint unsigned int sbit lcden = P3^5; sbit lcdrw = P3^6; sbit lcdrs = P3^7; uchar table[10]; uchar i, j, flag; void delay(uint n) { uint x,y; for( x = n; x > 0; x--) for( y = 110; y > 0; y-- ); } //lcd写命令函数 void lcdwrite_com( uchar com ) { lcdrs = 0; lcdrw = 0; P0 = com; delay(5); lcden = 1; delay(5); lcden = 0; } //lcd写数据 void lcdwrite_date( uchar date ) { lcdrs = 1; lcdrw = 0; P0 = date; delay(5); lcden = 1; delay(5); lcden = 0; } //lcd初始化 void lcd_init() { lcden = 0; lcdwrite_com( 0x38 );//显示模式设置 lcdwrite_com( 0x0e );//显示光标 lcdwrite_com( 0x01 );//清屏 lcdwrite_com( 0x80 + 2 );//数据指针设置 } //串口初始化 void serial_init() { TMOD = 0x20; TH1 = 0xfd; //9600赫兹 TL1 = 0xfd; TR1 = 1; //开启时间中断 SCON = 0x50;//方式2 SM2 = 1; //可以向cpu请求中断 EA = 1; //开总中断 ES = 1; //开串口中断 } void putchar( uchar ch )//发送数据 { SBUF = ch; while( !TI ); TI = 0; } void main() { lcd_init(); serial_init(); while(1) { delay(20); while( table[j] != '\0' && flag == 1 ) { j = j >= 10 ? 0 : j; putchar( table[j] ); lcdwrite_date( table[j] ); j++; // delay(10); } } } void Serial() interrupt 4 { RI = 0; if( SBUF != '#')//遇到#终止写 { table[i] = SBUF; i++; } else flag = 1; }