Longshine LCS-8156C1 - Manual (Page 38)

AT Commands for CX930xx Modem Reference Manual
3-14 Conexant 102752B
modem RAM using industry standard communications software or an equivalent
process.
Uploading SRAM patch
An internal SRAM patch does not require a loader. The AT** command can be used to
transfer the SRAM patch directly to the modem’s internal RAM. When the AT**
command is issued, the modem firmware boot loader is invoked and the user will transfer
the SRAM patch into the modem's RAM. The data transfer is done via an ASCII transfer.
Procedure
1. SRAM patch file (e.g., PatchB3-05-00_RAM.S37) in an appropriate directory on the
computer's hard disk.
2. Configure the communications application program for a DTE rate of between 9600
bps and 115200 bps and RTS/CTS flow control.
3. Check the modem for response by typing AT.
4. Initiate the download process using the AT** command. The “Download initiated ..”
message appears upon issuing the AT** command.
5. Perform an ASCII transfer of the SRAM patch file (e.g., PatchB3-05-00_RAM.s37)
from the host computer to the modem RAM using industry standard communications
software or an equivalent process.