Moved from this thread.
Thanks for the previous response — it helped me understand the configuration better.
Now I have a follow-up doubt:
In STM32CubeIDE, I can see multiple pin options for FDCAN1_RX and FDCAN1_TX in the pinout view. However, when I checked the STM32H747I-DISCO board, those selected pins (e.g., PB8, PB9, etc.) don’t seem to be accessible via any header pins or exposed GPIOs on the board.
So my question is:
Are there any accessible pins on the STM32H747I-DISCO board that I can actually use to connect FDCAN1 to an external CAN transceiver like the TJA1051T/3?
Would appreciate any guidance — especially if there's a known method to access these signals (e.g., via Arduino headers, PMOD, or solder points).
Thanks!
