Integrator's Manual

110
8.1.4 Software Upgrade
There are two phases to the COM24 software upgrade sequence. The initial phase is referred to
as the bootloader, and it is at this time that the card evaluates requests for a software upgrade.
The second phase, also known as the updater, is when the new code is downloaded,
authenticated, and installed to the card.
During the initial phase of the software upgrade procedure (the bootloader), a COM24 first
evaluates requests for software updates and then verifies that the code to be installed is indeed a
valid COM24 software release. During the bootloader phase, the status can be determined by
evaluating the LED states according to Table 5 below.
Table 5 – LED Behavior during Normal Upgrade
Condition
Tuner 1 LED
Tuner 2 LED
PWR LED
Upgrade initiated.
OFF
OFF
OFF
Initializing bootloader…
ON
ON
ON
Uploading file…
OFF
OFF
RAPID FLASH
File received.
Authenticating code…
RAPID FLASH
OFF
RAPID FLASH
Successful authentication.
Writing to memory…
RAPID FLASH
OFF
FLASH
Upgrade successful!
Card will reboot shortly.
ON
ON
ON
Note: The PWR LED may flash briefly at the start and/or end of the upgrade.
If you see a behavior not described above in conjunction with a failure to complete the update, it
may be an indication that something has gone wrong with the update. You should check that you
are following each of these guidelines before attempting another update.
 All system/PC connections are functioning correctly.
 The TFTP server is running on the PC handling the update.
 The TFTP server is fully configured and pointing to the folder containing the update.
 You have entered the correct destination IP for the PC handling the update.
 You have correctly entered the update file name.