My CAN receiver has a SA of 0x1ff, in your horrible documentation you refer to as TX_identifier.
I can receive messages from five different CAN connections. According to what ever the data
may be I may need to reply to separate Destination addresses. I do have the software running
with a specific TX_identifier and a specific RX_identifier and their assigned mailbox number.
1) Do I need a different mailbox for each address I need to reply to.
2) Is there a way to at will change the destination address I am trying to send a message to?