Softload
Swap to Alternate Software: $T=x
The $T command initiates a swap to the alternate set of software. If successful, the alternate software becomes the active software, and vice versa. The TA will automatically perform a reset to reinitialize the new software after the swap.
A softload password must be provided with the $T command.
If the password does not match the unit’s stored password, the
TA will return an ERROR message.
Before the TA attempts the swap, it first verifies that the alternate set of software is valid. An extensive set of tests must be passed during and after softloading. In order for the TA to allow a software swap the following conditions must be met:
•The previous software load was complete and successful.
•The software is loaded in the correct format.
•The software is for the correct product.
•The software version information is correct.
•The checksum of the software matches its stored checksum value.
If any of the above conditions is not met, then the alternate software is marked as invalid and the TA returns the ERROR message. If all verification checks pass, it returns OK and proceeds with the swap. The swap forces the TA to reset and reinitialize with the new software; this takes about 10 seconds. Note that the OK message is returned before the swap and reset are performed; to verify that the swap was actually successful, use the $Q command to request the software version.
When the swap command is executed, the TA automatically stores the selection of active software in nonvolatile memory.
Note: Depending upon the changes implemented in the software, one or more parameters in the TA’s stored profile may be reset following a swap command.
TYPICAL LOCAL SOFTLOAD SESSION
The following example demonstrates a typical softload session form a local host. The host computer in this example is a
The steps in performing a softload transfer and swap are:
1.Check the distribution floppy diskette that contains the file to be downloaded. There should be a file called README.TXT that describes the software contained on the floppy and gives the name of the actual softload file. Normally, softload files for the UTA220 are named UTA220.SL.
UTA220/UTA220k |
