STC89C52单片机的一些程序,包括串口通信,定时中断.docx

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 = P17;/0 1 2 3 4 5 6 7 8 9 a b c d e fuchar code Show16=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 = ShowRx_Buf;Delay_1ms(3);/*/delay for z*1ms/*/void Delay_1ms(uchar z) uchar i,j; for(i=z;i0;i-) for(j=110;j0;j-);串口通信，按键加减#include#define uint unsigned int#define uchar unsigned char #define SEND 0 #define RECEIVE 1sbit KEY1 = P14;sbit KEY2 = P15;sbit LED1 = P10;sbit LED2 = P11;sbit SMG = P17;uchar flag_Serial = SEND;uchar Rx_Buf;uchar Smg_Buf;/0 1 2 3 4 5 6 7 8 9 a b c d e fuchar code Show16=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);void Scan();/*/main function/*/void main() Serial_Init(); while(1) switch(flag_Serial) case SEND: flag_Serial = RECEIVE; Serial_send(); break; case RECEIVE: Display(); break; Scan(); /*/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 = ShowRx_Buf;Delay_1ms(3);/*/delay for z*1ms/*/void Delay_1ms(uchar z) uchar i,j; for(i=z;i0;i-) for(j=110;j0;j-);/*/scan the keys/*/void Scan()if(KEY1=0)Delay_1ms(10);if(KEY1=0)LED1 = LED1;Rx_Buf+;if(Rx_Buf=16)Rx_Buf = 0;Display();while(KEY1=0);if(KEY2=0)Delay_1ms(10);if(KEY2=0)LED2 = LED2;if(Rx_Buf=0)Rx_Buf = 15;elseRx_Buf-;Display();while(KEY2=0);串口通信，按键加减提示音，（利用定时中断）快速加减提示音#include#define uint unsigned int#define uchar unsigned char #define SEND 0 #define RECEIVE 1#define NORMAL0#define INCREASE1#define DECREASE2sbit KEY1 = P14;sbit KEY2 = P15;sbit LED1 = P10;sbit LED2 = P11;sbit SMG = P17;sbit SPEAKER = P16;uchar flag_Serial = SEND;uchar Rx_Buf;uchar count_2s;uchar flag_KS;/0 1 2 3 4 5 6 7 8 9 a b c d e fuchar code Show16=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);void Scan();/*/main function/*/void main() Serial_Init(); while(1) switch(flag_Serial) case SEND: flag_Serial = RECEIVE; Serial_send(); break; case RECEIVE: Display(); break; Scan(); /*/serial initial/*/void Serial_Init() TMOD = 0X21; /work in mode 2 PCON = 0X00; SCON = 0X50; TH1 = 0XFD; /BRUD 9600 TL1 = 0XFD; TR1 = 1; /open interrupt 1 ES = 1; /open the serial TH0 = (65536-50000)/256; TL0 = (65536-50000)%256; ET0 = 1; TR0 = 0; EA = 1; /open the key interrupt flag_Serial = SEND; SMG = 0;/*/serial interrupt function/*/void Serial() interrupt 4 EA = 0; if(RI!=0&flag_Serial=RECEIVE) RI = 0;Rx_Buf = SBUF;flag_Serial = SEND; EA = 1;/*/interrupt zero function/*/void Timer0()interrupt 1TH0 = (65536-50000)/256;TL0 = (65536-50000)%256;count_2s+;if(count_2s=40)/50ms*40=2scount_2s=0;if(KEY1=0)flag_KS = INCREASE;elseflag_KS = DECREASE;/*/mcu send data to serial/*/void Serial_send() SBUF = Rx_Buf; while(TI=0); TI=0;/*/display the data by SMG/*/void Display() P2 = ShowRx_Buf;/*/delay for z*1ms/*/void Delay_1ms(uchar z) uchar i,j; for(i=z;i0;i-) for(j=110;j0;j-);/*/scan the keys/*/void Scan()if(KEY1=0)Delay_1ms(10);if(KEY1=0)LED1 = 0;SPEAKER = 0;Delay_1ms(250);SPEAKER = 1;Delay_1ms(250);LED1 = 1;flag_Serial = SEND;Rx_Buf+;if(Rx_Buf=16)Rx_Buf = 0;Display();while(KEY1=0)TR0 = 1;ES = 0;if(flag_KS=INCREASE & count_2s=4)count_2s=0;Rx_Buf+;if(Rx_Buf=16)Rx_Buf = 0;SPEAKER = 0 ;LED1 = 0 ;Delay_1ms(200);SPEAKER = 1 ;LED1 = 1 ;Delay_1ms(200);Display();flag_KS = NORMAL;ES = 1;TR0 = 0;if(KEY2=0)Delay_1ms(10);if(KEY2=0)LED2 = 0;SPEAKER = 0;Delay_1ms(125);SPEAKER = 1;Delay_1ms(250);LED2 = 1;flag_Serial = SEND;if(Rx_Buf=0)Rx_Bu