Help with this PIC code

Started by eryer January 3, 2011
Hi,
i want your opinion about this code for PIC24FJ32GB002...I want to use
internal FRC for bus clock at 8MHz and obtain a PWM output at
150KHz...this is my first pic code and i can't test it (i haven't any
evalboard)...what do you think? This is my code

 #include <P24FJ32GB002.h>
 #define DEBUG

 _CONFIG2(IESO_OFF & FNOSC_FRC & POSCMOD_NONE)
 _CONFIG1(JTAGEN_OFF & ICS_PGx2 & FWDTEN_OFF)



 int main (void)
 {
	CLKDIV=0x00;	//clock divisor 0 => 8MHz

	#ifdef DEBUG
	REFOCONbits.ROEN=1;  //to see clock on REFO pin
	#endif

      //---150KHz PWM---
      OC1CON2bits.SYNCSEL=0b00000; //free running
      OC1RS=25;
      OC1R=25/2; //50% duty cycle
      OC1CON1bits.OCTSEL=0b111; //system clock
      OC1CON1bits.OCM=0b110;
      __builtin_write_OSCCONL(OSCCON & 0xBF);
      RPOR1bits.RP3R=18;
      __builtin_write_OSCCONL(OSCCON | 0x40);

     while(1);
     return 0;
 }

I've tried to test my firmware with mplab with logic analyzer, but
notihing comes out from REFO pin, so i need your opinion...what do you
think?
Thanks
Em 3/1/2011 16:08, eryer escreveu:
> Hi, > i want your opinion about this code for PIC24FJ32GB002...I want to use > internal FRC for bus clock at 8MHz and obtain a PWM output at > 150KHz...this is my first pic code and i can't test it (i haven't any > evalboard)...what do you think? This is my code
[snipped] Get a look at http://eng-serve.com/pic/pic_timer.html HTH -- Cesar Rabak GNU/Linux User 52247. Get counted: http://counter.li.org/
On 3 Gen, 20:16, Cesar Rabak <csra...@bol.com.br> wrote:
> Em 3/1/2011 16:08, eryer escreveu: > > > Hi, > > i want your opinion about this code for PIC24FJ32GB002...I want to use > > internal FRC for bus clock at 8MHz and obtain a PWM output at > > 150KHz...this is my first pic code and i can't test it (i haven't any > > evalboard)...what do you think? This is my code > > [snipped] > > Get a look athttp://eng-serve.com/pic/pic_timer.html > > HTH > > -- > Cesar Rabak > GNU/Linux User 52247. > Get counted:http://counter.li.org/
Thanks for answer, but PIC16F is very different from 24F: so link isn't useful...