canMatch - Match received CAN message

Test if a particular CAN message has been received.

Usage:

- command: canMatch <port> <msgId> [<b> <b> ...]
  [extractKey: <key>]
  [retry: <retryCount>]

Argument	Description
port	PLT CAN interface; currently only CAN0 is available.
msgId	CAN Message Arbitration ID. Can be specified as a decimal, hex, or binary number, depending on prefix. Use 0x for hex and 0b for binary. If no prefix is specified, the value will be interpreted as decimal.
b	Payload bytes. Each byte can be specified as a decimal, hex, or binary number, depending on prefix. Use 0x for hex and 0b for binary. If no prefix is specified, the value will be interpreted as decimal.
key	Key in which to store the matching CAN message (optional)
retryCount	Number of times to retry the test step (optional)