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K60 CAN message buffer

Question asked by tenfy zhang on Jul 18, 2013
Latest reply on Jul 25, 2013 by Monica Arvizu

     I am implementing the CAN module of K60, As known, the CAN module has 16 message buffers which can be configured as receive buffer and transmit buffer.

     Now I want to configure 8 message buffers as transmit buffer,and call them "hard-buffer". It means that I can use the 8 transmit message buffers to transmit my CAN messages.

     When I begin to send my CAN messages, I need to judge which transmit message buffer is empty, but I don't know how to judge it.

     My questions are that:

     1:how to jude whether a transmit message buffer is empty;

     2:Is it necessary to use the 8 transmit message buffers to transmit CAN messages simultaneously.