GPS-721 User Manual
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GPS-721 User Manual V2.0, Oct. 2010
2.15
$AAF
There will be no response if the command syntax is incorrect,
there is a communication error, or there is no module with the
specified address.
Description:
This command is used to read the firmware version of a
module.
Syntax:
$AAF[CHKSUM](CR)
$
Delimiter character
AA
Address of the module in hexadecimal format (00
to FF)
F
Command to read the firmware version
Response:
Valid Command:
!AA(Data)[CHKSUM](CR)
Invalid Command: ?AA[CHKSUM](CR)
!
Delimiter for a valid command
?
Delimiter for an invalid command
AA
Address of the module in hexadecimal format (00
to FF)
(Data)
Firmware version of the module as string
Example:
Command: $01F
Response: !0101.20
Reads the firmware version of module 01, and shows
that it is version 1.2.
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