I'm implementing CAN FD on the MPC5748G and I don't seem to be getting an interrupt when a message is sent or received. I can successfully send messages as well as receive them from checking the memory and CANAlyser and I can see that the corresponding bits are set in the IFLAG registers. Whether I set or clear the corresponding bits in the IMASK registers for that buffer however the ISR doesn't seem to fire.
I'm calling xcptn_xmpl() so the ISRs should be enabled and have my routines in the vector table for the buffers on that CAN port. Is there anything else I should check as to why the interrupts might not be happening? Other interrupts are working so it seems to just be something with my CAN FD code.
Solved! Go to Solution.
Do you enable the interrupts and assign the callback function?
void FLEXCAN_DRV_InstallEventCallback(uint8_t instance, flexcan_callback_t callback, void *callbackParam)
and (if needed)
void FLEXCAN_DRV_InstallErrorCallback(uint8_t instance, flexcan_error_callback_t callback, void *callbackParam)
You can find the functions in flexcan_driver.c/.h files. I'm new to NXP so I cannot give you information if your vector table is correct. But you can compare your settings with the implementation of the driver functions.