What is the error? | adafruit | Page 1

glad bane Oct 11, 2024, 12:44 AM

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ValueError: Invalid pins

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Oh no. It looks like I mixed up MISO and MOSI? I should have used GP3 for MOSI

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It looks like I'll have to cut the traces, unless there's still a way to fix this in software

tawny anvil Oct 11, 2024, 12:56 AM

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I make mistakes like that all the time. When I'm doing RP2040 stuff, I always have this page up https://pico.pinout.xyz/ (even when doing non-Pico RP2040, it's faster than bringing up the datasheet)

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If you have already-made PCBs you'd like to save, you may be able to create an SPI object with decent speed via PIO, porting this to CircuitPython https://github.com/raspberrypi/pico-examples/tree/master/pio/spi

glad bane Oct 11, 2024, 1:45 AM

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Okay follow-up question... turns out my FPC connector pins populated the wrong way. Do you know if there's a 24-pin FPC cable out there that has contacts on both sides so I can flip the connection?

glad bane Oct 11, 2024, 2:20 AM

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Update: I think I found some options.

#What is the error?