Modemulator User Guide
Page
101
of
113
After typing the three characters, the following will be displayed:
6.
Within 40 seconds after
LOAD HEX FILE
appears, start sending the hex file using ASCII protocol (text
file or raw binary) from the terminal application. When the file transfer completes, a checksum will be
performed. If it is successful, Modemulator will be in AT command mode, with
OK
responses.
If the hex file is not sent within 40 seconds, or if the checksum fails, you will see
Boot>
instead of the
normal
OK
response after AT commands. Repeat from step 3. If flashing cannot succeed, the hex file
may be corrupt and should be replaced with a fresh file from USR's website or from customer service.
Please wait.......
LOAD HEX FILE