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Altera_Forum's avatar
Altera_Forum
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8 years ago

how to generate Variable frequancy pwm

Hi, I am trying to write Verilog code to generate pwm signal for step motor controler; The pwm signal frequancy should range from 1Hz to 1MHz,and the frequancy stepper need to be 1Hz. I ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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Although this can be surely done in FPGA, it's not clear what you want to achieve. Are you actually talking about pwm used with stepper motor, e.g for constant phase current? But why should it use variable frequency?

Why step frequency fixed to 1 Hz?

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Thanks for your replying!

Like this https://www.embedded.com/design/mcus-processors-and-socs/4006438/generate-stepper-motor-speed-profiles-in-real-time

I want to generate smoothly frequency to drive the step motor rotate.