Re: [PATCH v4 0/1] Change PWM-controlled LED pin active mode and algorithm
From: Conor Dooley
Date: Thu Aug 03 2023 - 05:16:07 EST
On Thu, Aug 03, 2023 at 04:57:33PM +0800, Nylon Chen wrote:
> According to the circuit diagram of User LEDs - RGB described in themanual hifive-unleashed-a00.pdf[0] and hifive-unmatched-schematics-v3.pdf[1].
>
> The behavior of PWM is acitve-high.
>
> Removed patches: 1
> New patches: (none)
>
> Links:
> - [0]: https://sifive.cdn.prismic.io/sifive/c52a8e32-05ce-4aaf-95c8-7bf8453f8698_hifive-unleashed-a00-schematics-1.pdf
> - [1]: https://sifive.cdn.prismic.io/sifive/6a06d6c0-6e66-49b5-8e9e-e68ce76f4192_hifive-unmatched-schematics-v3.pdf
> - [2]: https://sifive.cdn.prismic.io/sifive/1a82e600-1f93-4f41-b2d8-86ed8b16acba_fu740-c000-manual-v1p6.pdf
>
> Changed in v4:
> - Remove previous updates to the PWM algorithm.
Why? I don't recall the conclusion on the previous version being that
that patch was not needed.
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