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STM32H743: What is the purpose of pins FDCANn_TXFD/RXFD

Question asked by suchy.gabriele on Mar 1, 2018
Latest reply on May 24, 2018 by Imen D

We are currently setting up a project using STM32H743 and need to implement CAN / CAN-FD. When activating FDCAN1 or 2 in Cube as Mode "FD", two additional checkboxes can be activated: Enable_FDCAN_TXFD and Enable_FDCAN_RXFD. When activating these, two additional RX/TX Pins are activated on the chip. What is the purpose of these Pins? Do we need to enable them to have CAN-FD work properly? I could not find any declaration of this. 

 

Thank you for any help.

Gabriele

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