BGS2T AT Command Set
18.5 AT^SFDL
BGS2T_ATC_V01.301 Page 519 of 554 1/31/12
c
18.5 AT^SFDL Firmware Download
AT^SFDL allows the application manufacturer to download BGS2T firmware into the ME by starting the download
process on a customer-designed update tool.
For this purpose the BGS2T firmware update file must be available in *.USF format. This file is part of each prod-
uct specific firmware package supplied by Cinterion Wireless Modules GmbH. The firmware file consists of
records to be transferred one by one from the update tool to the ME.
This manual only describes the syntax of the AT^SFDL command. Details on technical requirements and steps
to prepare the host application for this download solution can be found in "Application Note 16: Updating BGS2T
Firmware" [7]. An example for developing an appropriate update tool is included.
The command causes the ME to reset and enter the firmware download mode (this may take some milliseconds).
After entering the download mode the ME sends the start pattern HEX 0x01 ("ANSWER_OK") to the update tool
to indicate its ready state. Next, the update tool shall start to send the records of the firmware file. Each record
received by the ME is acknowledged to the update tool. Once all records are successfully received, the ME shuts
down automatically.
If BGS2T is switched on although it has no valid firmware installed, it waits 60s for the AT^SFDL command (or
for another download method to be started). If neither the AT^SFDL command nor equivalent characters from
another download method are received the ME switches off after a 60s timeout.
If a valid firmware is still installed, but the AT^SFDL command is issued without sending any firmware afterwards
the ME will stay in ready state. In this case it must be switched off.
Syntax
Test Command
AT^SFDL=?
Response(s)
OK
Exec Command
AT^SFDL
Response(s)
OK
0x01
PIN ASC0 MUX1 MUX2 MUX3 Last
- + - - - + +
To Next Page
Loading...
Need help?
General
