pwm output using pic16f887

[pavithr]

hello

should we use a interrupt while trying to get a software pwm using pic16f887.
i thought it is essential only when we want hardware pwm.am i right??

 

[ALERTLINKS]

Not necessarily. You can write code as you find it apropriate.

 

[pavithr]

Not necessarily. You can write code as you find it apropriate.

if it is possible to write a code without using interrupt can u please show me how to do it..
i am completely new to this pic codes.do u have a program that u have used for this purpose

thanks

 

[malik_zohaib]

check this link https://electronicseverywhere.blogspot.com/2010/09/pic16f887877-programming-in-c-tutorial_15.html

 

[ragav4456]

PWM 2 channel output.

check this link
https://www.edaboard.com/threads/279062/

 

[Tahmid]

hello

should we use a interrupt while trying to get a software pwm using pic16f887.
i thought it is essential only when we want hardware pwm.am i right??

It depends on your method of coding. You can use interrupts. You can also choose to use flag-polling instead of interrupt and just control everything in the main code along with the "code flow". If there are multiple tasks to be taken care of, though, using interrupt would be easier.

Hope this helps.
Tahmid.

 

[ALERTLINKS]

**broken link removed**
http://ww1.microchip.com/downloads/en/AppNotes/AN1074 Setup.EXE
**broken link removed**
http://eng-serve.com/pic/pic_pwm.html

 

[M.Imran Ali]

You can use timer to count for exact duty cycle . when time interrupt occurs or pole flag bit of corresponding timer , High and low your GP output pin to generate pwm signal