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CAN Communication: FD Transceiver with Classic CAN Controller

KMew
Senior III

Hello,

I am looking to communicate between my control board and someone else's control board that is already designed via CAN communication. I am only looking to do Classic CAN communication (Not FD). I have the following parts:

MCU on my Control Board: STM32H7B3LIH6Q

MCU on coworkers Control Board: STM32F303RET

CAN Transceiver on both Control Boards: MCP2542WFD-E/SN

The STM32H7 controller can do both CAN 2.0B and CAN FD

The STM32F7 controller can only do CAN 2.0B

The CAN Transceiver, according to the datasheet, is a CAN FD Transceiver

If I want to communicate via CAN 2.0B (Classic CAN) and configure both controllers to Classic CAN, will the following connection scheme work:

STM32H7 -> FD CAN Transceiver -> FD CAN Transceiver -> STM32F7

1 REPLY 1
AScha.3
Chief II

should work perfect; just do not forget termination resistors on connection line.

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