TJA1043 receive interrupt delayed after wakeup in RH850

[haridas_nitturu]

Hi ,

I see delay of 250-500ms from the wakeup to CAN receive FIFO interrupt generation(INTRCANGRECC),

I measure this timestamp in my interrupt handler and i have attached my hardware CAN controller schematic here for reference.

Could you please help me understand what can cause this delay?

[PetrS]

Hi,

I am not so clear how do you measure a delay in fact.

Per my understanding you measure a delay till message is received into CAN module receive FIFO. But what is the initial point? Local or remote wakeup? If you use remote wakeup, do you receive wakeup pattern properly?

CAN you share some scope pictures with related signals which explain the behavior more?

BR, Petr