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  Topic: 16f877 pwm code problem
Neo

Replies: 10
Views: 18715
 PostForum: General CCS C Discussion   Posted: Mon May 10, 2010 1:40 pm   Subject: 16f877 pwm code problem
I'm trying to make boost converter with Mosfet, and this control circuit dirves mosfet at 100kHz.

I asked that inverted pulse for my friend, he tries static compensation and need to drive 2 mosfets ...
  Topic: 16f877 pwm code problem
Neo

Replies: 10
Views: 18715
 PostForum: General CCS C Discussion   Posted: Mon May 10, 2010 12:28 pm   Subject: 16f877 pwm code problem
Thank you PCM programmer, but i tried my code today and it worked fine ;)


But i have new question, i want to get complemented pulse on other pwm out port. How can i turn first pulse to inverse?
  Topic: 16f877 pwm code problem
Neo

Replies: 10
Views: 18715
 PostForum: General CCS C Discussion   Posted: Sun May 09, 2010 1:26 pm   Subject: 16f877 pwm code problem
Thank you sshahryiar but your code gived same result...

I'll try my code tomorrow in laboratory.
  Topic: 16f877 pwm code problem
Neo

Replies: 10
Views: 18715
 PostForum: General CCS C Discussion   Posted: Fri May 07, 2010 4:44 am   Subject: 16f877 pwm code problem
In Proteus, if I change processors clock time to 20 MHz it works fine (Proteus gives 1mhz), but in reality where I can change processors clock time ?

I think I should tell this processor in progra ...
  Topic: 16f877 pwm code problem
Neo

Replies: 10
Views: 18715
 PostForum: General CCS C Discussion   Posted: Thu May 06, 2010 4:08 pm   Subject: 16f877 pwm code problem
Hi, I am trying to make 100khz pwm signal with 20 MHz oscillator, and I'll change duty with buttons...

I use this calculation : Tpwm=Tosc*4*(PR2+1)*1 => PR2=49

#include <16f877.h> ...
 
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