On Tue, 18 Mar 2003, Andre Abelian wrote:

> Hi to all engineers,
>
> I need to generate 4 outputs like this and all 4 duty cycle
> Get changed at the same time. Even I had 4 hardware PWM in pic
> I do not think I could make it start like that.
>
> 0d   90d   180d  270d  360d
>
> |-----|-----|-----|-----|
>
>
>         |------------|
> ________|            |--
>
> --------|            |--
>         |____________|
>
> |-----------|           |
> |           |___________|
>
> |           |-----------|
> |___________|           |
>
>
> I use hi-tech c 18f452 any idea or recommendation
> Will highly appreciate. I was thinking to use array
> But then how to change duty cycle. The frequency is 60hz

It ain't C, but you should be able to inline it:

http://www.dattalo.com/technical/software/pic/pwm8.asm

Scott

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads