针对STC89C52RC 单片机的一些程序 基本串口通信程序： #include #define uint unsigned int #define uchar unsigned char #define SEND 0 #define RECEIVE 1 uchar flag_Serial = SEND; uchar Rx_Buf; sbit SMG = P1^7; //0 1 2 3 4 5 6 7 8 9 a b c d e f uchar code Show[16]={0x03,0x9f,0x25,0x0d,0x99,0x49, 0x41,0x1f,0x01,0x19,0x11, 0xc1,0x63,0x85,0x61,0x71}; void Serial_Init(); void Serial_send(); void Display(); void Delay_1ms(uchar z); /****************************************************/ //main function // /****************************************************/ void main() { Serial_Init(); while(1) { switch(flag_Serial) { case SEND: flag_Serial = RECEIVE; Serial_send(); break; case RECEIVE: Display(); break; } } } /****************************************************/ //serial initial // /****************************************************/ void Serial_Init() { TMOD = 0X20; //work in mode 2 PCON = 0X00; SCON = 0X50; TH1 = 0XFD; //BRUD 9600 TL1 = 0XFD; TR1 = 1; //open interrupt 1 ES = 1; //open the serial EA = 1; //open the key interrupt flag_Serial = SEND; SMG = 0; } /****************************************************/ //serial interrupt function // /****************************************************/ void Serial() interrupt 4 using 2 { EA = 0; if(RI!=0&&flag_Serial==RECEIVE) { RI = 0; Rx_Buf = SBUF; flag_Serial = SEND; } EA = 1; } /****************************************************/ //mcu send data to serial // /****************************************************/ void Serial_send() { SBUF = Rx_Buf; while(TI==0); TI=0; } /****************************************************/ //display the data by SMG // /****************************************************/ void Display() { P2 = Show[Rx_Buf]; Delay_1ms(3); } /**************************************************...
