STM32F412 CAN Transmits unexpected data

JDOG · ‎2024-04-24

When I trigger a transmit of a test CAN message on CAN bus 2 the CAN module transmits unexpected data when I look at CAN bus with a logic analyzer. PCAN does receive the unexpected message and it does acknowledge the massage.

Here is what I see on the CAN Bus.

PCAN Receive:

PCAN_RX_Unexpected message.jpg

Karl Yamashita · ‎2024-04-24

Set your variables to global. Once your leave the SendCAN_Message function, the variables are destroyed.

I was told that if a devices starts to smoke, put the smoke back in. I guess I never got all the smoke because the device never worked afterwards.
Don't worry, I won't byte.
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