Add input clock for PWM

[Stanley Seow]

Hi, I have a IceSugar 1.5 board and would like to do a simple PWM on the LEDs

I copied the sample PWM codes here into the code blocks but I can't find a way to send in the clocks except the build-in Prescaler22 or PrescalerN

I copied this code with INPUT as CLK and OUTPUT as LED only

https://github.com/wuxx/icesugar/tree/master/src/basic/verilog/pwm

How do I set the INPUT CLK as system clock ??

Thanks

Stanley

[Juan Gonzalez Gomez]

Hi Stanley!

The input clock is automatically connected to system clock if the Edit/preferences/Board rules is enabled (it is enabled by default)

In this circuit you can see the pwm unit. It works ok on my iCESugar:

You will that little yellow box connected to the clk input (it is the system clock). It is placed automatically by icestudio

I am attaching this example for you to try

Best regards, Juan

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