STC15W204S串口通信可切换通信端口

#include<STC15.h> #define S1_S0 0x40 #define S1_S1 0x80 #define FOSC 11059200L #define BAUD 115200//波特率 unsigned char WORD;

unsigned char busy; //------------------------

void SendString(unsigned char *s);///发送字符串 void main() { /****通信串口切换******/ P_SW1=ACC; //(P3.0/Rxd,P3.1/TxD) /*默认通信串口*/ //------------------------------------------------- //P_SW1|=S1_S0; //(P3.6/Rxd_2,P3.7/TxD_2)/*通信串口2*/ //------------------------------------------------- //ACC|=S1_S1; //(P1.6/Rxd_3,P1.7/TxD_3) /*stc15w204s没有这个通信串口*/ //------------------------------------------------- /********************/ SCON=0x50; //8位可变波特率 T2L=(65536-(FOSC/4/BAUD)); ///设置波特率重装值 T2H=(65536-(FOSC/4/BAUD))>>8; AUXR=0x14; //T2为1T启动定时器2 AUXR|=0x01;