How to use ECCP module (4 PWM channels) in PIC18f4550?

[ayazahmed]

Hi guys

I m doing a project in which i want to generate 4 PWM signals of approx. 1KHz frequency in the background (means i want to do other micro-controller tasks and PWM simultaneously). I m using PC18f4550 for this purpose. I have found that i can generate 4 PWM signals in the background by using ECCP module. But still i m unable to know how to use it.

I am using PICC compiler but i can also work with PIC BASIC Pro. If someone have some ideas or any sample codes, PLZ PLZ help me...

Here is the datasheet of PIC18f4550
ww1.microchip.com/downloads/en/devicedoc/39632d.pdf

regardz
Ayaz Ahmed

 

[mrcube_ns]

Generally its relatively easy to make PWM using timer interrupt.

Mr.Cube

 

[ayazahmed]

Dear Mr.Cube

Thanks for giving an attention to my question. For ur info, i know how to make PWM, in fact i have generated 2 PWM signals using PIC16F877 in the background. The problem is that it just have 2 PWM channels and i need 4. that's why i wanna learn ECCP module in PIC18F4550. The data sheet have some useful info to operate it correctly but i m still trying to understand it. PLZ PLZ help me to solve this problem.

Thanks again in advance

Regardz
Ayaz Ahmed