Le Tue, 01 Apr 2025 08:06:27 +0200, MIZSEI Zoltán <zmiz...@extrowerk.com> a écrit :
> It won't work as a GPIO device under OpenBSD, Why won't it work under OpenBSD? gpio(4) can't play with it? It needs a specific driver for? Is it because of the integrated RP2040 co-processor (and maybe it will work with odroid h4)? > but you can get it indirectly working like this: > > In this case the GPIO is managed by an rp2040 (aka Raspberry Pico 1) > chip. Using the Bootsel button on the board you can switch it into > LOADER mode, so it shows up as a usb mass storage device. You can > install your favorite Forth implementation (for example > https://github.com/tabemann/zeptoforth ) copying the uf2 onto the > RP2040 usb drive. It will then show up as a USB CDC serial port, > connecto to it via "cu" (112500 / 8N1) and write a simple algorythm > to act as a bridge between the serial port and the GPIO pins. > > You can test it with any kind of rp2040 board you have in your drawer > to extend your computer with 40pin GPIO (some of them are GND, so it > isn't really 40 independent pin, but with RP2350 you can have true 40 > pin GPIO). thx for the trick.
