We aim to expand the CAN function on Thor via SPI, using the CH9431 chip. The circuit diagram for the test board is as follows: CH9431T-R0-1v0.pdf (68.8 KB) The test carrier board of this chip. Using ORIN NX in conjunction with our self-developed board test function works perfectly. When we conne…

I don’t see there’s any error/dropped CAN data from the result you shared. Please also check if the issue may be caused from CAN analyzer side.

SPI issue

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