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Does anyone have a WORKING code of power_pwm for 18Fxx31?

 
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40inD
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Does anyone have a WORKING code of power_pwm for 18Fxx31?
PostPosted: Wed Sep 28, 2005 11:47 am     Reply with quote
I use this code for first expirience in power pwm in 4431, but it does not work.
Code:

void setup_pwm()
{
setup_power_pwm (pwm_clock_div_4 | pwm_free_run, 1, 10000, 1000, 0, 1, 0);
setup_power_pwm_pins (PWM_ODD_ON, PWM_ODD_ON, PWM_ODD_ON, PWM_ODD_ON);


return ;
}

void main()

{
   
setup_pwm();
while (1){

 //varying brightness of 4 leds as indication that pwm works
set_power_pwm0_duty (4095);
set_power_pwm2_duty (1024);
set_power_pwm4_duty (2048);
set_power_pwm6_duty (4095);
output_high(pin_c0);
delay_ms(100);

set_power_pwm0_duty (4095);
set_power_pwm2_duty (2048);
set_power_pwm4_duty (4095);
set_power_pwm6_duty (0);
output_low(pin_c0);
delay_ms(100);
set_power_pwm0_duty (2048);
set_power_pwm2_duty (4095);
set_power_pwm4_duty (0);
set_power_pwm6_duty (1024);
output_high(pin_c0);
delay_ms(100);
set_power_pwm0_duty (1024);
set_power_pwm2_duty (0);
set_power_pwm4_duty (1024);
set_power_pwm6_duty (2048);
output_low(pin_c0);
delay_ms(100);
}
}


Only led on C1 flashes but leds on pwm0,2 are always on and leds on pwm 4,6 are always off.
Where is the error???
Guest
PostPosted: Wed Sep 28, 2005 11:47 am     Reply with quote
sorry, led on C0 flashes
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Sep 28, 2005 1:12 pm     Reply with quote
Look at the CCS example file, EX_POWER_PWM.C.
You will have this file if your version of PCH is 3.232 or higher.
Look for it in this folder: c:\Program Files\Picc\Examples
40inD
Guest
PostPosted: Sat Oct 01, 2005 9:47 am     Reply with quote
I have version 3.203. I guess it does not support these functions?
So, i'm now working directly with registers and i'm happy Smile
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