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by manson1972
Thu Oct 03, 2019 5:52 pm
Forum: Bare metal, Assembly language
Topic: Setting the output register for a GPIO on Pi 4
Replies: 21
Views: 2826

Re: Setting the output register for a GPIO on Pi 4

Yes, I googled a lot, and found a lot of people saying "use the mailbox" but nowhere did I find where that information originally came from. I was wondering why it wasn't done like you just showed could be done. Guess now I know :)

Thanks!
by manson1972
Tue Oct 01, 2019 6:20 pm
Forum: Bare metal, Assembly language
Topic: Setting the output register for a GPIO on Pi 4
Replies: 21
Views: 2826

Re: Setting the output register for a GPIO on Pi 4

Hello, I've been following your SpiderOS site, as I am trying to learn a few things. One question I have is regarding this: "I also had fun lighting the LED ACT. For that I use the mailbox and GPIO Virtual Buffer" How did you find out that you had to use the mailbox the GPIO Virtual buffer to light ...

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