Hi,
I have a problem in my program with the CAN SCE Interrupt.
I work with a STM32F412VG but I have the same problem with a STM32F413VG, STM32F103C8 and STM32F042K6. And I work with MikroPascal Pro IDE from MikroElektronika.
I try to get an interrupt when there is an error in the CAN bus, and to achieve that I try to use the CAN SCE Interrupt.
The problem is that the register (CAN_IER) is configured in accordance with the reference manual for the STM32F412VG but the interrupt is never triggered by the CAN1_MSR.ERRI flag. The flag CAN1_MSR.WKUI triggers correctly the interrupt.
I monitored the CAN1_MSR register to verify that the bit is really set when there is an error and it is set correctly (tested with an ACK error), the only thing that doesn't work is the trigger of the interrupt.
In the configuration procedure, I configure the CAN_IER like that :
CAN1_IER.LECIE := 1; //LEC Code
CAN1_IER.BOFIE := 1; //Bus OFF
CAN1_IER.EPVIE := 1; //Error passive
CAN1_IER.EWGIE := 1; //Error warning
CAN1_IER.ERRIE := 1; //Error interrupt -> don't trigger SCE
CAN1_IER.WKUIE := 1; //Wake up interrupt -> trigger SCE
NVIC_IntEnable(IVT_INT_CAN1_SCE); //Enable SCE Interrupt
and in the interrupt (wich is not triggered by CAN1_MSR.ERRI), I clear the CAN1_MSR.ERRI bit.
Thanks in advance for your help.
Regards.
