hì hì các bạn phải viết lại cho đẹp.#include <at89x52.h> int i,j,ia,ja; int key,key1; int time_on, time_off,time_total; int temp,tempp; long pause,stop; sbit relay=P2^7; // Dieu khien khoi dong tu //======Phan giao tiep I2C dung rom 24c04======================= sbit SCL = P2^4; sbit SDA = P2^3; //sbit A0 = P0^0; //sbit A1 = P0^1; //sbit A2 = P0^2; //sbit WP = P0^5; #define SIG24C 0xA0 #define WR24C 0x00 #define RD24C 0x01 //#define HI24C01 0x00 //#define HI24C02 0x00 #define HI24C04 0x02 //#define HI24C08 0x06 //#define HI24C16 0x0e void TxChar(unsigned char ch); void Setup24c(void); void Delay(unsigned int loop); unsigned char ReadByte(unsigned int addr); void WriteByte(unsigned int addr, unsigned char ch); void ShiftOut(unsigned char bytout); //============I2C=====Doc ghi rom================================ void Delayi2c(unsigned int loop) { while(loop--); } void BaseClock(void) { Delayi2c(4); SCL = 1; Delayi2c(4); SCL = 0; } void StartAccess(void) { SCL = 1; SDA = 1; Delayi2c(4); SDA = 0; Delayi2c(4); SCL = 0; } void StopAccess(void) { SDA = 0; SCL = 1; Delayi2c(4); SDA = 1; Delayi2c(4); SCL = 0; } void Setup24c(void) { unsigned char i; //A0 = 0; //A1 = 0; //A2 = 0; //WP = 0; SCL = 1; SDA = 1; Delayi2c(2); for(i=0;i<9;i++) BaseClock(); StartAccess(); } void NoAck(void) { SDA = 1; BaseClock(); } //void Ack(void) //{ //SDA = 0; //BaseClock(); //} bit GetAck(void) { unsigned int i; bit bSda; SDA = 1; Delayi2c(2); SCL = 1; for(i=0;i<50000;i++) { Delayi2c(100); bSda = SDA; if(bSda == 0) break; } SCL = 0; return(!bSda); } bit AckPoll(void) { unsigned char i; for(i=0;i<1000;i++) { StartAccess(); ShiftOut(SIG24C); if(GetAck()) return(1); } return(0); } void WaitTwr(void) { Delayi2c(4000); } void ShiftOut(unsigned char bytout) { unsigned char i; for(i=0;i<8;i++) { if((bytout & 0x80) == 0) SDA = 0; else SDA = 1; BaseClock(); bytout = bytout << 1; } } unsigned char ShiftIn(void) { unsigned char i,bytin; bytin = 0; bytin = bytin | SDA; for(i=0;i<7;i++) { BaseClock(); bytin = bytin << 1; bytin = bytin | SDA; } return(bytin); } void WriteByte(unsigned int addr, unsigned char ch) { unsigned char DeAddr,HiAddr,LoAddr; LoAddr = (unsigned char) addr; HiAddr = (unsigned char) (addr >> 8); DeAddr = SIG24C | ((HiAddr <<1 ) & HI24C04); //DeAddr = SIG24C | ((HiAddr <<1 ) & HI24C08); StartAccess(); ShiftOut(DeAddr | WR24C); GetAck(); ShiftOut(LoAddr); GetAck(); ShiftOut(ch); GetAck(); StopAccess(); WaitTwr(); AckPoll(); } unsigned char ReadByte(unsigned int addr) { unsigned char ch,DeAddr,HiAddr,LoAddr; ch = 0xff; LoAddr = (unsigned char) addr; HiAddr = (unsigned char) (addr >> 8); DeAddr = SIG24C | ((HiAddr <<1 ) & HI24C04); //DeAddr = SIG24C | ((HiAddr <<1 ) & HI24C08); StartAccess(); ShiftOut(DeAddr | WR24C); GetAck(); ShiftOut(LoAddr); GetAck(); StartAccess(); ShiftOut(DeAddr | RD24C); GetAck(); ch = ShiftIn(); NoAck(); StopAccess(); return(ch); } //============================================================ //======Phan hien thi thoi gian dung 2 led 7 doan=============== //hang chuc sbit led1=P0^2;sbit led2=P0^1;sbit led3=P0^0;sbit led4=P1^3; sbit led5=P1^2;sbit led6=P1^1;sbit led7=P1^0;sbit led8=P0^6; //hang don vi sbit led21=P0^5;sbit led22=P0^4;sbit led23=P0^3;sbit led24=P1^7; sbit led25=P1^6;sbit led26=P1^5;sbit led27=P1^4;sbit led28=P0^7; void tat(void) { led1=1;led2=1;led3=1;led4=1;led5=1;led6=1;led7=1; } void tat2(void) { led21=1;led22=1;led23=1;led24=1;led25=1;led26=1;led27=1; } void so0(void) { tat();led1=0;led2=0;led3=0;led4=0;led5=0;led6=0;led7=1; } void so20(void) { tat2();led21=0;led22=0;led23=0;led24=0;led25=0;led26=0;led27=1; } void so1(void) { tat();led1=0;led2=1;led3=1;led4=0;led5=1;led6=1;led7=1; } void so21(void) { tat2();led21=0;led22=1;led23=1;led24=0;led25=1;led26=1;led27=1; } void so2(void) { tat();led1=1;led2=0;led3=0;led4=0;led5=0;led6=1;led7=0; } void so22(void) { tat2();led21=1;led22=0;led23=0;led24=0;led25=0;led26=1;led27=0; } void so3(void) { tat();led1=0;led2=0;led3=1;led4=0;led5=0;led6=1;led7=0; } void so23(void) { tat2();led21=0;led22=0;led23=1;led24=0;led25=0;led26=1;led27=0; } void so4(void) { tat();led1=0;led2=1;led3=1;led4=0;led5=1;led6=0;led7=0; } void so24(void) { tat2();led21=0;led22=1;led23=1;led24=0;led25=1;led26=0;led27=0; } void so5(void) { tat();led1=0;led2=0;led3=1;led4=1;led5=0;led6=0;led7=0; } void so25(void) { tat2();led21=0;led22=0;led23=1;led24=1;led25=0;led26=0;led27=0; } void so6(void) { tat();led1=0;led2=0;led3=0;led4=1;led5=0;led6=0;led7=0; } void so26(void) { tat2();led21=0;led22=0;led23=0;led24=1;led25=0;led26=0;led27=0; } void so7(void) { tat();led1=0;led2=1;led3=1;led4=0;led5=0;led6=1;led7=1; } void so27(void) { tat2();led21=0;led22=1;led23=1;led24=0;led25=0;led26=1;led27=1; } void so8(void) { tat();led1=0;led2=0;led3=0;led4=0;led5=0;led6=0;led7=0; } void so28(void) { tat2();led21=0;led22=0;led23=0;led24=0;led25=0;led26=0;led27=0; } void so9(void) { tat();led1=0;led2=0;led3=1;led4=0;led5=0;led6=0;led7=0; } void so29(void) { tat2();led21=0;led22=0;led23=1;led24=0;led25=0;led26=0;led27=0; } void hienso(int so) { int a,b; //c=so%60; //a=c/10; //b=c%10; a=so/10; b=so%10; switch(a) { case 0:{so0();break;} case 1:{so1();break;} case 2:{so2();break;} case 3:{so3();break;} case 4:{so4();break;} case 5:{so5();break;} case 6:{so6();break;} case 7:{so7();break;} case 8:{so8();break;} case 9:{so9();break;} } switch(b) { case 0:{so20();break;} case 1:{so21();break;} case 2:{so22();break;} case 3:{so23();break;} case 4:{so24();break;} case 5:{so25();break;} case 6:{so26();break;} case 7:{so27();break;} case 8:{so28();break;} case 9:{so29();break;} } } //=============================================================== //========Phan xu ly ngat timer va quet phim===================== void delay(unsigned int ms) { unsigned int i,j; for (i=0; i<ms; i++) { for (j=0; j<120; j++); } } void timer0_int() { EA=1; TMOD =0x01; ET0=1; TH0=0x11; TL0=0xF; TR0=1; } void timer0(void) interrupt 1 { TH0=0x20; //chinh thoi gian chinh xac TL0=0xF; j++; TF0=0; if (j==8) led28=1; if (j==16) { led28=0; //lenh trong ngat tempp++; if (tempp==60){temp++;tempp=0;} j=0; //hienso(temp); if (temp==time_on){relay=1;} if (temp==time_total) {relay=0;temp=0;} } } void quetphim() { if (P2_0 ==0) key =1; if (P2_1 ==0) key =2; if (P2_2 ==0) key =3; } //======================================================== //============Chuong trinh chinh========================== void main() { //time_on=5; //time_off=5; //=======I2C= Doc tu rom= Setup24c(); //WriteByte(1,time_on); //WriteByte(2,time_off); time_on=ReadByte(1); time_off=ReadByte(2); stop=ReadByte(3); //======================= time_total=time_on+time_off; j=0; ia=0; key1=1; timer0_int(); TR0=0; temp=0; tempp=0; pause=0; hienso(0); relay=0; led8=1; delay(300); if (stop==1){TR0=1;led8=0;} while (1) { Run: pause=0; key=0; if (temp<time_on) hienso(time_on-temp); if (temp>=time_on) hienso(time_total-temp); //if (temp==time_on){relay=1;} //if (temp==time_total) {relay=0;temp=0;} quetphim(); switch(key) { case 1:{ delay(300); ia=0;ja=0; while(1) { pause++; if (pause>50000) {TR0=1;led8=0;time_on=ReadByte(1); time_off=ReadByte(2);goto Run;} quetphim(); switch(key) { case 1:delay(300);pause=0; if (ia>0){time_on=time_on+5;TR0=0;led8=1;} if (time_on>60) time_on=5;key=5; hienso(time_on);ia++;ja=0;break; case 2:delay(300);pause=0; if (ja>0) {time_off=time_off+5;TR0=0;led8=1;} if (time_off>60) time_off=5;key=5; hienso(time_off);ja++;ia=0;break; case 3:delay(300);TR0=1;led8=0; ia=0;ja=0;temp=0;j=0;relay=0; time_total=time_on+time_off; //I2C====luu vao rom====== WriteByte(1,time_on); WriteByte(2,time_off); time_on=ReadByte(1); time_off=ReadByte(2); //======================== goto Run;break; } } break;} case 2:{ delay(300); ia=0;ja=0; while(1) { pause++; if (pause>50000) {TR0=1;led8=0; time_on=ReadByte(1); time_off=ReadByte(2);goto Run;} quetphim(); switch(key) { case 1:delay(300);pause=0; if (ia>0){time_on=time_on+5;TR0=0;led8=1;} if (time_on>60) time_on=5;key=5; hienso(time_on);ia++;ja=0;break; case 2:delay(300);pause=0; if (ja>0) {time_off=time_off+5;TR0=0;led8=1;} if (time_off>60) time_off=5;key=5; hienso(time_off);ja++;ia=0;break; case 3:delay(300);TR0=1;led8=0; ia=0;ja=0;temp=0;j=0;relay=0; time_total=time_on+time_off; //I2C=====Luu vao rom===== WriteByte(1,time_on); WriteByte(2,time_off); time_on=ReadByte(1); time_off=ReadByte(2); //======================== goto Run;break; } } break;} case 3:{ //so3(); delay(300); //I2C=======Luu vao rom======== WriteByte(1,time_on); WriteByte(2,time_off); time_on=ReadByte(1); time_off=ReadByte(2); //======================== ia=0;ja=0; if (TR0==1) {TR0=0;stop=0;led8=1; led28=0;WriteByte(3,stop); } else if (TR0==0){led8=0;stop=1;TR0=1;WriteByte(3,stop);} break;} } } } //=========================end main===============================
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