Besir Demir

CAN Bus  ACKERR regıster

Discussion created by Besir Demir on Sep 22, 2011
Latest reply on Sep 24, 2011 by Besir Demir

Hı,

 

I'm using MCF52235 can bus protocol for communication

 

I send message from transmitter device to receiver device . I get the message from the transmitter device but I want to know the message that I have send have been transmitted or not.

 

For this, I read ACKERR regıster , 

 

ACKERR :

Acknowledge error. Indicates whether an acknowledgment has been correctly received for a transmitted message.

         0 No ACK error was detected since the last read of this register.

         1 An ACK error was detected since the last read of this register

 

When I remove the receiver device from the can bus network , ACKERR regıster  don't change .(always 0)

 

How can I know that my message has been sent or not. (may be a different method )

 

is anyone can help me? 

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