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LSH · 2024-02-11

Hello, I have some trouble with FDCAN.Please let me know what is wrong with my settings. 1. Current problem: My STM32H7 transmit only error. (Logic Analyzer) (PCAN View)Same error signal repeat endless and if I connect PCAN, many other error and stuf...

LSH · 2024-02-09

Hello. I have three question about using classical CAN frame with FDCAN controller.I am using STM32H743VIT6 MCU on my PCB. 1. If system clock(label in ioc file: SYSCLK) is too low, can it make impossible to use CANbus? 2. If I using only classical CA...

LSH · 2024-02-19

Thank you so much. I get some hint from your first suggestion(CAN H is not changing) and I found there was 330Ohm resistor between CAN transceiver and MCU. It increase RC constant of signal line. I delete this 330 Ohm resistor and add 120 Ohm termina...

LSH · 2024-02-09

Hello SofLit.Thank you for your reply! I am using 12MHz SYSCLK and 40MHz for FDCAN. Is it too low? I have to make it low as possible for low power consumption. (but I can't change MCU for low power.)Therefore, If there is clock under limitation for s...

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STM32H743VI FDCAN didn't works as classical CAN

Using classical CAN with FDCAN controller on STM32H743VIT6

Re: STM32H743VI FDCAN didn't works as classical CAN

Re: Using classical CAN with FDCAN controller on STM32H743VIT6