3 ms·

I've just been reading the datasheet here: https://datasheets.raspberrypi.org/rp2040/rp2040_datasheet.pdf https://datasheets.raspberrypi.org/rp2040/rp2040_datas

I've just been reading the datasheet here: https://datasheets.raspberrypi.org/rp2040/rp2040_datasheet.pdf https://datasheets.raspberrypi.org/rp2040/rp2040_datasheet.p... It does have some examples and the Pico SDK has various PIO programs you can look at for inspiration. The getting started page links to a few projects including the HDMI/DVI: https://www.raspberrypi.org/documentation/pico/getting-started/ https://www.raspberrypi.org/documentation/pico/getting-start...

tyingq 6y ago
Note that the HDMI/DVI code overclocks the Cortex M0 from its normal 133Mhz to 252Mhz. So it's a cool hack, but I think it would have wonky behavior. https://github.com/Wren6991/picodvi/blob/34bc82555860de4b35ed87e9383536660f91fcef/software/apps/terminal/main.c#L37 https://github.com/Wren6991/picodvi/blob/34bc82555860de4b35e...
- duskwuff 6y ago
  On the upside, it looks as though the production silicon has a lot of performance headroom. The 800x600 mode overclocks it all the way to 400 MHz!
  - tyingq 6y ago
    That is cool, and at $4, I suppose the risk is pretty low :)
trebligdivad 6y ago
It's obvious whoever designed that, did it so that they could do fun things with it; very flexible PIO and DMA with lots of neat corners; and mention of fun things like 8080 bus interfacing and the like.