HAL CAN module using BxCAN fails to initialize when RXD and TXD aren't physically connected.
Hi all, I'm using STM32L476 and I am using its BxCAN with a transceiver TJA1042. I have the transceiver's RXD to STM32's CAN_RD1, and TXD to CAN_TX1. Both pins on STM32 are set to be pulled up. And the transceiver does have a 3.3V reference. There's ...