On 5/18/23, Brennan Ashton <bash...@brennanashton.com> wrote: > On Thu, May 18, 2023, 11:53 AM Alan C. Assis <acas...@gmail.com> wrote: > >> I don't think you can get ws2812 working directly using a GPIO over >> bitbang, the protocol used by this chip is very time sensitive. >> Actually even in SPI mode I failed to get it working, I tried it on >> stm32f103-minimum and stm32f4discover because AFAIK originally Brennan >> implemented and tested the driver in STM32. >> >> BR, >> >> Alan >> > > I tested it on an nRF52 but I think others have use STM32. It is > particular since we are abusing SPI for something that looks kind of like > SPI. I recommend using a logic analyzer to verify the waveform on the wire > if debugging this. >
Thank you Brennan, so it was nRF52! There is also the RMT driver from Victor Benso: https://www.youtube.com/watch?v=rmOh9iGzwtk He submitted a PR to mainline: https://github.com/apache/nuttx/pull/6992 Maybe you can work with him to fix the remaining issue and get it merged! BR, Alan
