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  Topic: PWM problem
saniat

Replies: 11
Views: 16486

PostForum: General CCS C Discussion   Posted: Thu May 21, 2015 11:51 am   Subject: PWM problem
1. moderate wobbling is fine but not too much
2. yes 0 to 25 us

i currently have 77a and 4431. and no i actually did not try it in hardware only used proteus. my prof wants to see the result in pr ...
  Topic: PWM problem
saniat

Replies: 11
Views: 16486

PostForum: General CCS C Discussion   Posted: Thu May 21, 2015 10:52 am   Subject: PWM problem
You are going to have to do this for anything that requires 'tight' timing, and with the hardware it becomes a 'one time' calculation

could not understand this sentence?

thanks saniat
  Topic: PWM problem
saniat

Replies: 11
Views: 16486

PostForum: General CCS C Discussion   Posted: Thu May 21, 2015 10:40 am   Subject: PWM problem
1)could not understand what you mean by accuracy
2)PWM 20 khz shift range 0 to 180
3)processor has to do only ADC other than shift

thanks
saniat
  Topic: PWM problem
saniat

Replies: 11
Views: 16486

PostForum: General CCS C Discussion   Posted: Wed May 20, 2015 10:43 pm   Subject: PWM problem
i understand now that i have some instruction delay in each line.

temtronic
can you suggest me advance 40 pin chip (if possible suggest me some coz i have to check my country has those chips or no ...
  Topic: PWM problem
saniat

Replies: 11
Views: 16486

PostForum: General CCS C Discussion   Posted: Tue May 19, 2015 11:17 am   Subject: PWM problem
i have generated two PWM signals and added a phase shift in the 2nd signal. the code works fine. but the problem is that i want to generate 50 us period signal. though i have given the delay in micros ...
  Topic: pwm problem in pic 18f84431
saniat

Replies: 7
Views: 10859

PostForum: General CCS C Discussion   Posted: Mon Mar 16, 2015 5:57 am   Subject: pwm problem in pic 18f84431
so if generate a power pwm and a standard pwm (both same frequency and duty), by this way i can show a phase shift between 1 power pwm signal and a standard pwm signal. am i right?
  Topic: pwm problem in pic 18f84431
saniat

Replies: 7
Views: 10859

PostForum: General CCS C Discussion   Posted: Mon Mar 16, 2015 4:36 am   Subject: pwm problem in pic 18f84431
so do i get a 10 us shift from the original signal?when i say the original signal i mean the signal without the 10us delay.

thank you
saniat
  Topic: pwm problem in pic 18f84431
saniat

Replies: 7
Views: 10859

PostForum: General CCS C Discussion   Posted: Mon Mar 16, 2015 3:24 am   Subject: pwm problem in pic 18f84431
this is a simple pwm using standard module. how can use the set_timer2(0) to have a 10us delay start a pwm signal?
#include <18F4431.h> ...
  Topic: pwm problem in pic 18f84431
saniat

Replies: 7
Views: 10859

PostForum: General CCS C Discussion   Posted: Sun Mar 15, 2015 11:54 am   Subject: pwm problem in pic 18f84431
hello,
I am using pic 18f84431. I got this assignment that i have to generate a PWM signal which will start after 10us. Now i understand that i will wait for 10us then set the timer to zero (as setti ...
 
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