STC15单片机串口2使用程序例子

#include<stc15f2k60s2.h> void UartInit2(void) //9600bps@11.0592MHz { S2CON = 0x50; //8???,????? AUXR |= 0x04; //???2???Fosc,?1T T2L = 0xE0; //?????? T2H = 0xFE; //?????? AUXR |= 0x10; //?????2 IE2 |= 1; //允许中断 EA = 1; } void UartInit1(void) //9600bps@11.0592MHz { SCON = 0x50; //8???,????? AUXR |= 0x40; //???1???Fosc,?1T AUXR &= 0xFE; //??1?????1??????? TMOD &= 0x0F; //?????1?16??????? TL1 = 0xE0; //?????? TH1 = 0xFE; //?????? ET1 = 0; //?????1?? TR1 = 1; //?????1 ES=1; } void main() { UartInit1(); UartInit2(); while(1); } void UART1() interrupt 4 { if(TI) TI=0; if(RI) { RI=0; SBUF=SBUF; } } void UART2_int (void) interrupt 8 { if((S2CON & 1) != 0) { S2CON &= ~1; S2BUF = S2BUF; } if((S2CON & 2) != 0) { S2CON &= ~2; } }