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hrvach / deskhop

Fast Desktop Switching Device
GNU General Public License v3.0
6.14k stars 173 forks source link

Question regarding UART #14

Closed Trekky12 closed 8 months ago

Trekky12 commented 9 months ago

Hey @hrvach,

thank you very much for the effort of creating this piece of hardware. I think you created a solution many of us were looking for 🥳

I have a short question regarding the UART Pins. Could you explain why Pico A is using GPIO 12,13 and Pico B is using GPIO 16,17? Wouldn't it be possible to use the same Pins in both Picos?

hrvach commented 9 months ago

It would, the reason was easier pcb routing because in both cases uarts are next to the adum1201 isolator :)

Trekky12 commented 9 months ago

Okay good to know 👍 I think this is one of the last barriers to have one unified code for both Picos, am I right?

hrvach commented 9 months ago

Okay good to know 👍 I think this is one of the last barriers to have one unified code for both Picos, am I right?

Correct, adding e.g. a simple pullup or pulldown to one board would enable it to figure out if it's A or B on boot and act accordingly, so a single firmware could be used. This will most likely be one of the features in the PCBs next revision.