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SMT32F407VGT6 / CAN issue

JACK00
Associate II

‎2024-01-01 11:09 PM - last edited on ‎2024-01-02 2:02 AM by

The CAN communication between the main control board (SMT32F407VGT6) and the same server board (STM32F407VGT6) shows that the ambient temperature is below -10 degrees, the communication is abnormal, and the ambient temperature is above -10 degrees! Immediately returning to normal, may I ask what the reason is? Confirm that the CAN communication interface hardware chip meets the requirements!

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Tesla DeLorean
Guru

‎2024-01-01 11:41 PM

Check performance of external clock and transceiver. 

You can output HSE via PA8 (MCO) and check clock accuracy within specification limits. 

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