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How to make FDCAN_TXFD/RXFD works on STM32H743?

Question asked by Aaron Chang on Sep 18, 2017
Latest reply on Sep 19, 2017 by Aaron Chang

    While generating STM32H743 project by CubeMX, I noticed that FDCAN1 can be either "master mode" or "full-duplex mode", and they map to different pairs of signal pins ( FDCAN1_TX/RX and FDCAN1_TXFD/RXFD ).

    I found that FDCAN1_TX/RX works in both modes, but FDCAN1_TXFD/RXFD did not work in any mode.

    The problem is that I have a need to make FDCAN1_TXFD/FDCAN1_RXFD work, would anyone give me any advice?  Thanks in advance!

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