CODEWITHSUNDEEP
interruptcan-busautosar
최 고운
최 고운

Reputation: 3

Which api is used by Autosar when routting messages using the Can rx/tx interrupt method?

I am a software developer using Autosar standard. I have a question message routing of two PDUs. My using system use a Can rx/tx interrupt method. I guess called ISR upon receiving can message. And I thought copy rx message to buffer. But I can’t find API providing from autosar standard. I'm curious about the api that is called when routing messages when using the can rx/tx interrupt method. I'm thinking that api based on Autosar criteria will be fixed. Please advise from experts.

Upvotes: 0

Views: 247

Answers (1)

kesselhaus
kesselhaus

Reputation: 1496

PDU level routing is done in the PduR, while Signal-based routing is done in Com.

So, on reception, no matter if Polling or Interrupt, Can will call CanIf_RxIndication with the RxPduId mapped to the PDU. CanIf will call PduR_RxIndication then, which will lookup the PduRRoutingRelations. It will then call CanIf_Transmit with the DestTxPduId and the data of the received PDU.

For Signal-based routing, this is done a level higher in AUTOSAR Com.

This does not have to be programmed manually, it is part of an standard AUTOSAR stack.

The routing relations can also already be defined by the SystemDescription/EcuExtract used by the configuration tool, to configure the stack automatically.

Upvotes: 0

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