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I figured it out. The A/B stepper drivers had extra jumpers installed that shouldn't have been there for the 2209. Fixing my A/B steppers fixed the display.
Thank you! This photo is incredibly helpful and I now have my controller communicating with the Raspberry Pi. Did you run into any issues with your display? I have it lit but no text.
I am attempting to connect a Raspberry Pi 4 to Spider v2.3 .
I have been able to upload firmware.bin by sd card and observed it changed to "old.bin", I have been unable to connect by UART or USB method.
I have attempted several variants of the same documentation...
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