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Altera_Forum's avatar
Altera_Forum
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17 years ago

Generating PWM in cyclon2

Hello I am trying to write codes to generate PWM pulses in my FPGA, but it seems it does not funtion. The input "rst" reset the program but it does not synchronize with the "rst" input. Can any o...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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I want the pwm output to be zero until the rst pin goes high

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But you coded 

if (rst = '0') then
cnt <= (cnt+1);

So it's counting and toggling the output while rst is low. Unfortunately, I don't understand the intended operation and how it's related to PWM.