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Re: 16f877a pwm no output
Thanks for reply. My circuit is a 20kHz H-bridge driven by sinus pwm. For that, I need 2 pwm channels. Pic creats sinus pwms, pwms go to 2 ir2110 mosfet drivers then 4 mosfets make switching.
Because of 20Khz, LUT will have many values in it. I think LUT is not an...
Re: 16f877a pwm no output
With some code changes, I figured out that if I use just set_pwm1_duty(j) or set_pwm2_duty(j) in code it looks like working.(I think Proteus can't show duty cycle changes, but shows %50 duty cycle pwm signal). So how can I use both of the pwm pins?
This picture shows...
16f877a pwm no output
I have written a code below to produce a 20kHz pwm to create a sinus wave at 50 Hz by changing duty cycle.
When I run the program it gave me no out puts on RC1 and RC2 pins. I got just logic 0. But pin RC0 was always logic 1. I couldn't find what wrong is.
Here is the...
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