This is the area to clarify hardware specification if there's anything unclear from the datasheet. If the specification is software related, please ask in the related software section.

Upboard SPI chip select cannot control


When I tested the SPI communication in the Upboard, I could receive and send spontaneously, but when I communicate with the outside world, the data is always garbled. The initial judgment is the chip select signal problem. The chip select is always zero for some reason, and it is not controlled. No partners have encountered this problem?


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