Scannex ip.buffer User Manual
© UK 2007-2021 Scannex Electronics Ltd. All rights reserved worldwide.
13.6. System
13.6.1. Upgrade Firmware
http://192.168.0.235/setup/firmware.shtm
The firmware in the ip.buffer is stored in a special area of the NAND flash. This option
allows the ip.buffer to be remotely upgraded.
You will need a valid “.BLF” file from Scannex to upgrade the firmware.
Fail safe upgrading
The ip.buffer actually has two main sections of code. The first provides for boot time
services and gets the hardware basically configured and ready to accept the main
firmware
. This first part is not user modifiable – it is programmed at the factory.
The second is the firmware as stored in the NAND flash. There is space for two full copies
of the application firmware so that any failures on upgrading are recovered. On boot up
the primary loader validates the “.BLF” file, as loaded through the web, and either runs
the new code, or defaults to the previous version in case of an incomplete or erroneous
file.
This makes it safe to perform a remote upgrade over a modem link, even when there is a
possibility of power or line failure.
After upgrading, it may be necessary to press Ctrl-F5 in your browser to reload
the cached files on the PC.
10
In actual fact, the first part is split into three. There is the CPU’s ROM loader, a micro loader, and
a web-based bootloader.
Page 113
Scannex ip.buffer User Manual
© UK 2007-2021 Scannex Electronics Ltd. All rights reserved worldwide.
13.6. System
13.6.1. Upgrade Firmware
http://192.168.0.235/setup/firmware.shtm
The firmware in the ip.buffer is stored in a special area of the NAND flash. This option
allows the ip.buffer to be remotely upgraded.
You will need a valid “.BLF” file from Scannex to upgrade the firmware.
Fail safe upgrading
The ip.buffer actually has two main sections of code. The first provides for boot time
services and gets the hardware basically configured and ready to accept the main
firmware
. This first part is not user modifiable – it is programmed at the factory.
The second is the firmware as stored in the NAND flash. There is space for two full copies
of the application firmware so that any failures on upgrading are recovered. On boot up
the primary loader validates the “.BLF” file, as loaded through the web, and either runs
the new code, or defaults to the previous version in case of an incomplete or erroneous
file.
This makes it safe to perform a remote upgrade over a modem link, even when there is a
possibility of power or line failure.
After upgrading, it may be necessary to press Ctrl-F5 in your browser to reload
the cached files on the PC.
10
In actual fact, the first part is split into three. There is the CPU’s ROM loader, a micro loader, and
a web-based bootloader.
Page 113
