mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

Jan Cumps — Thu, 20 Oct 2022 19:03:07 GMT

I did part of your homework.

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

scottiebabe — Wed, 19 Oct 2022 22:59:21 GMT

Stretch goal, have the pico enumerate as a USB TMC device [emoticon:578cee8aac0e41e9bcef50a2f8d281d5]

Someone seems to have tried that: https://github.com/markb139/pico_logic

Regardless, great work!

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

Jan Cumps — Wed, 19 Oct 2022 22:29:13 GMT

I'll write a follow-up post on how to use the USB port of the PICO kit, instead of the uart0 pins

as a preview, I've attached both the UART and USB firmware binaries (uf2 format, so direct drag-and-drop) to the end of the post.

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

shabaz — Wed, 19 Oct 2022 21:51:20 GMT

Awesome, that was a 30-second job to install it and test it!

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

Jan Cumps — Tue, 18 Oct 2022 21:40:05 GMT

heads-up: the communication is via pin 1 and 2, not via the USB. This hadn't occurred to me, because I'm using a debug probe that connects to these. Shabaz noticed it.

image source: https://www.elektronik-kompendium.de/sites/raspberry-pi/2611051.htm

I'll check tomorrow how I can route the traffic to the ASB port, while still be able to use the picoprobe to program, and the interrupt mechanism ...

RE: mini project: PICO-PI programmable Lab Switch - 3: DIGI:OUTP command

shabaz — Tue, 18 Oct 2022 20:46:31 GMT

Awesome! Glad it's nearing completion.

I was wondering, once you are ready to publish, if you don't mind, could you also stick a .uf2 firmware file on GitHub too? That way, people can try it even if they are initially unfamiliar with building code for the Pico.