I can't get my STM32H743VIT6 to receive FDCAN Classic Mode Extended ID messages.

RKjal.1 · ‎2021-06-17

I used the:

"STM32H743I-EVAL\Examples\FDCAN\FDCAN_Classic_Frame_Networking" example on my board.

I can send and receive Standard ID message to and from my CAN BUS Analyser, but can only send Extended messages. Cannot receive them. I have attached the init code for both Standard and Extended.

TOlli · ‎2021-06-23

Hi,

On line 42 of your code, you define ExtFiltersNbr to 0. Change it to 1 so you can actually assign the extended filter to catch the specific message (you define the filter on line 67)

Best regards,

View solution in original post

SofLit · ‎2021-06-21

Hello,

I tried to create a project in loopback mode based on STM32H743I-EVAL\Examples\FDCAN\FDCAN_Loopback example.

The attached example runs on NUCLEO-H743 board and it sends & receives standard and Extended frames. You can port it to STM32H743I-EVAL board.

Hope this will help you.

STM32

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TOlli · ‎2021-06-23

Hi,

On line 42 of your code, you define ExtFiltersNbr to 0. Change it to 1 so you can actually assign the extended filter to catch the specific message (you define the filter on line 67)

Best regards,

RKjal.1 · ‎2021-06-24

I haven't had a chance to update but you are exactly right. One of my field engineers from Arrow pointed that out and suddenly everything worked fine.

Thanks for responding.