I'm working with an STM32F412ZETx microcontroller and encountering an issue with the CAN2 peripheral. The transmit (Tx) functionality is working correctly, but the receive (Rx) interrupt via FIFO1 is not triggering at all.
CAN2 transmit works fine. I can see messages on the bus. same setup with CAN1 (Rx FIFO0) works fine.
Is there anything specific I need to configure for CAN2 RX interrupts on STM32F412?
Could the filter bank or SlaveStartFilterBank setting be causing this?
Are there known limitations with CAN2 and FIFO1 on this device?
