An Example CcTalk Message Packet
TX data = 002 000 001 245 008 _____
- 002 = destination address
- 000 = zero data bytes
- 001 = source address
- 245 = command header ‘Request equipment category id’
- 008 = checksum ( 002 + 000 + 001 + 245 + 008 = 256 = 0 mod 256 )
This is a message from address 1 ( the host ) to peripheral address 2 to find out what it is.
RX data = 001 013 002 000 067 111 105 110 032 065 099 099 101 112 116 111 114 022
- 001 = destination address
- 013 = 13 data bytes
- 002 = source address
- 000 = reply header
- 067…114 = ASCII for ‘Coin Acceptor’
- 022 = checksum ( sum of all packet bytes is zero )
The reply from address 2 back to address 1 identifies it as a coin acceptor.
Read more about this topic: Cc Talk
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