DSP33FJ56MC710- PWM

[sivaganapathy]

HI,
Can anyone help me, to setup pwm for DSP33FJ56MC710. I have try this


setup_ccp2(ccp_pwm); //c1 for pwm
setup_timer_2(T2_DIV_BY_1,127,1); //40khz
set_pwm2_duty(mtspeed); // mtspeed=MY VALUE

but it showing error. please guide me. 10q.

[PCM programmer]

Look in this example file for PWM code for the PCD compiler:

[sivaganapathy]

hi'
i still can't find 4 pcd.
in my example they just have 4 pcm and pch.can u help me? in my C:\Program Files\PICC\Examples\EX_PWM it just have this:


#if defined(__PCM__)
#include <16F877.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=10000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, BRGH1OK) // Jumpers: 8 to 11, 7 to 12

#elif defined(__PCH__)
#include <18F452.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=10000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, BRGH1OK) // Jumpers: 8 to 11, 7 to 12
#endif


void main() {
char selection;
byte value;


printf("\r\nFrequency:\r\n");
printf(" 1) 19.5 khz\r\n");
printf(" 2) 4.9 khz\r\n");
printf(" 3) 1.2 khz\r\n");

do {
selection=getc();
} while((selection<'1')||(selection>'3'));


setup_ccp1(CCP_PWM); // Configure CCP1 as a PWM

// The cycle time will be (1/clock)*4*t2div*(period+1)
// In this program clock=10000000 and period=127 (below)
// For the three possible selections the cycle time is:
// (1/10000000)*4*1*128 = 51.2 us or 19.5 khz
// (1/10000000)*4*4*128 = 204.8 us or 4.9 khz
// (1/10000000)*4*16*128= 819.2 us or 1.2 khz

switch(selection) {
case '1' : setup_timer_2(T2_DIV_BY_1, 127, 1);
break;
case '2' : setup_timer_2(T2_DIV_BY_4, 127, 1);
break;
case '3' : setup_timer_2(T2_DIV_BY_16, 127, 1);
break;
}



setup_port_a(ALL_ANALOG);
setup_adc(adc_clock_internal);
set_adc_channel( 0 );
printf("%c\r\n",selection);

while( TRUE ) {
value=read_adc();

printf("%2X\r",value);

set_pwm1_duty(value); // This sets the time the pulse is
// high each cycle. We use the A/D
// input to make a easy demo.
// the high time will be:
// if value is LONG INT:
// value*(1/clock)*t2div
// if value is INT:
// value*4*(1/clock)*t2div
// for example a value of 30 and t2div
// of 1 the high time is 12us
// WARNING: A value too high or low will
// prevent the output from
// changing.
}

}

[PCM programmer]

Send an email to CCS support and ask them for the latest EX_PWM.c
that has code for the PCD compiler.