Command 0xDF01 - Echo

The host uses this command to prompt the device for a response that contains the same payload it sent.

1

Sequence of events

• The host constructs the command request for Command 0xDF01 - Echo in the format below, populating any of the available parameters with any data. The total length of data to be echoed across all parameters must not exceed 128 bytes.

• The host sends the command request to the device.

• The device sends a command response in the format below to the host, echoing back the exact parameters the host sent in the command request.

Table - Request Data for Command 0xDF01 - Echo

Tag	Len	Value / Description	Typ	Req	Default
Beginning of any wrappers, at minimum including Request Message
DF01 = Command 0xDF01 - Echo
81	var	Data to be echoed	B	O
82	var	Data to be echoed	B	O
End of any wrappers, at minimum including Request Message

Table- Response Data for Command 0xDF01 - Echo

Tag	Len	Value / Description	Typ	Req	Default
Beginning of any wrappers, at minimum including Response Message
DF01 = Command 0xDF01 - Echo
81	var	Data being echoed	B	O
82	var	Data being echoed	B	O
End of any wrappers, at minimum including Response Message

Table - Request Example

Example (hex)

AA 00 81 04 01 01 DF 01 84 07 DF 01 81 03 01 02 03

Table - Response Example

Example (hex)

AA 00 81 04 82 01 DF 01 82 04 00 00 00 00 84 07 DF 01 81 03 01 02 03