What is PROBLEM?

[SADIN]

i used keilC- at89s52 but it doesn’t work.

Can you help me????

/* ==================chuongtrinh tao 3 song vuong =================== */

#include<reg52.h>              // Dinh kem file thu vien

#include<stdio.h>

/*==================khai bao bien==================*/

sbit  wave0= P1^0;                // xuat ra 3 pin

sbit  wave1= P1^1;             

sbit  wave2= P1^2;   

/*=================hàm ngat timer 2==================*/

 void timer2(void) interrupt 5

 { wave0=~wave0;

 }

  /*=================hàm ngat timer 1==================*/

 void timer1(void) interrupt 3

 { wave1=~wave1;

 }

/*=================hàm ngat timer 0==================*/

 void timer0(void) interrupt 1

 { TR0=0;

    TH0=-10000/256;            // xung chu ky 20000us

TL0=-10000%256;

TR0=1;

wave2=~wave2;

 }

/*

---

ham chinh

---

*/

void main(void)

{ T2MOD=0x02;              // DCEN=0,timer 2 dem len

 RCAP2H=-25000/256;        // xung chu ky 50000us

 RCAP2L=-25000%256;

 TR2=1;

 TMOD=0x21;               // timer0- mode1; timer1 – mode 2

 TH1=-100;   // xung chu ky 200us

 TL1=-100;      

 TR1=1;

/* khoi tao cac thanh ghi cho phep ngat va uu tien ngat */

    IE=0xAA;

TF0=1;

while(1) ;

}

 

[AJISH ALFRED]

Hi Sadin,

Could you please post a small description about what are you exactly trying to achieve with that code. It would be easy for us to help you if the comments were written in English.

[SADIN]

Thanks!

I found errors: library( reg52) didn’t have T2mod register.

[AJISH ALFRED]

You need to include the header file for timers. I don’t remember the exact header file name, suggest you to google it!

[Author]

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