STM32 ERRI Error Interrupt

apavone9 · ‎2016-10-18

Posted on October 18, 2016 at 16:47

Hi,

In some condition ERRI Interrupt occours without any other error condition (CAN_ESR = 0). What is the meaning of this interrupt?

Thank you.

Alessandro

slimen · ‎2016-10-28

Posted on October 28, 2016 at 16:59

Hello,

- ERRI: Error interruptThis bit is set by hardware when a bit of the CAN_ESR has been set on error detection andthe corresponding interrupt in the CAN_IER is enabled. Setting this bit generates a statuschange interrupt if the ERRIE bit in the CAN_IER register is set.This bit is cleared by software.

- ERRIE: Error interrupt enable

0: No interrupt will be generated when an error condition is pending in the CAN_ESR.

1: An interrupt will be generation when an error condition is pending in the CAN_ESR.

You have to refer to the reference manual for more details on this topic.

Regards