Comtrol AT Commands for SmartACFL - Manual (Page 32)

Command Reference Manual
3-12 Conexant 100722A
8. The following messages may occur during the uploading process:
Message Description
Device not supported Displayed if the FLM used does not support the flash memory that is installed on the board.
Wrong S37 format Displayed if the modem firmware being uploaded is not in Motorola S3 format.
Record error Displayed if there is an error while either uploading or downloading. If this occurs, the
transfer should be aborted, and the user should restart at step 5.
Download abort Displayed if the transfer is aborted before it is finished. If this occurs, the user should restart
at step 5.
Erase fail Displayed if the FLM is unable to erase the flash memory. If this occurs, the user should
restart at step 5.
Download error, Re-Load Displayed if there was an error when uploading or downloading. If this occurs, the user
should restart at step 5.
Error, No H/W flow ctl Displayed if RTS-CTS flow control is not set. If this occurs, the user should restart at step 3.
DTE timeout Displayed if the DTE has stopped the XMODEM transfer process before it is finished. If this
occurs, the user should restart at step 5.
Code doesn’t match
hardware Displayed if the user is attempting to upload a firmware that either not the same model
(parallel, serial, etc.), crystal frequency, or size (1Mbit, 2Mbit, etc.) as the firmware that is
currently on the board. If this occurs, the FLM will abort and not allow the user to continue.
Device successfully
programmed Displayed by the FLM at the completion of a successful upload or download then the modem
will do a cold start.
The uploader and downloader flash load modules (FLM) have several built in safety mechanisms to reduce the risk of a failed
flash upload/download. The FLM will not allow a user to upload a firmware of different model (serial, parallel, etc.) or crystal
speed than what is currently in the flash memory. Also, it will not allow the user to upload a firmware that is larger in size than
the flash memory itself (e.g., a 2Mbit firmware onto a 1Mbit flash memory). It will, however, allow the user to upload a
firmware that is smaller in size than the flash memory, and it will program the firmware with the appropriate offset in order for
the firmware to function properly. In the instance that there is a failure during the download or upload process, the modem will
be in a “flash rescue mode”. In this mode, the modem will respond “OK” to all AT commands, but will only take action on the
AT** command, so a new attempt to upload or download can be initiated. When the modem is in the “flash rescue mode” it
will only be able to respond to AT commands if the DTE rate has not been changed since the last AT** command was
successfully issued, even if the modem is powered off and on.
3.2.2 DTE-Modem Interface commands
The parameters defined in this section control the operation of the interface between the DTE and modem.
3.2.2.1 E - Command Echo
The modem enables or disables the echo of characters to the DTE. The parameter value, if valid, is written to S14 bit 1.
Syntax
E<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Disables command echo.
1 Enables command echo. (Default.)
Result Codes
OK <value> = 0 or 1.
ERROR Otherwise.