Hi, Is there something wrong with the stm32g474xx.h and the RM0440.pdf regarding the FDCAN. The shift of the FDCAN_IE_TCE : (1 << 7U) is not corresponding on the information provided by the FDCAN2 Registers on IAR. Some extras bits as RF0WE, RF1WE.

[MAmem.1 · Accepted solution]

The IAR 8.40 is wrong concerning the FDCAN_IE register. Have to update IAR version.