单片机与单片机之间的双向通信

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1、/***************writer:shopping.w******************/#include#defineuintunsignedint#defineucharunsignedcharsbitLED1=P1^0;sbitLED2=P1^3;sbitK1=P1^7;ucharOperation_NO=0;ucharcodeDSY_CODE[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};voidDelay(uintx){uc

2、hari;while(x--){for(i=0;i<120;i++);}}voidputc_to_SerialPort(ucharc){SBUF=c;while(TI==0);TI=0;}voidmain(){LED1=LED2=1;P0=0x00;SCON=0x50;TMOD=0x20;PCON=0x00;TH1=0xfd;TL1=0xfd;TI=0;RI=0;TR1=1;IE=0x90;while(1){Delay(100);if(K1==0){while(K1==0);Operation_NO=(Operation_NO

3、+1)%4;switch(Operation_NO){case0:putc_to_SerialPort('X');LED1=LED2=1;break;case1:putc_to_SerialPort('A');LED1=0;LED2=1;break;case2:putc_to_SerialPort('B');LED2=0;LED1=1;break;case3:putc_to_SerialPort('C');LED1=0;LED2=0;break;}}}}voidSerial_INT()interrupt4{if(RI){RI=

4、0;if(SBUF>=0&&SBUF<=9)P0=DSY_CODE[SBUF];elseP0=0x00;}}/***************writer:shopping.w******************/#include#defineuintunsignedint#defineucharunsignedcharsbitLED1=P1^0;sbitLED2=P1^3;sbitK1=P1^7;ucharNumX=0xff;voidDelay(uintx){uchari;while(x--){for(i=0

5、;i<120;i++);}}voidmain(){LED1=LED2=1;SCON=0x50;TMOD=0x20;PCON=0x00;TH1=0xfd;TL1=0xfd;TI=0;RI=0;TR1=1;IE=0x90;while(1){Delay(100);if(K1==0);{while(K1==0);NumX=(NumX+1)%11;SBUF=NumX;while(TI==0);TI=0;}}}voidSerial_INT()interrupt4{if(RI){RI=0;switch(SBUF){case'X':LED1=

6、1;LED2=1;break;case'A':LED1=0;LED2=1;break;case'B':LED2=0;LED1=1;break;case'C':LED1=0;LED2=0;}}}