NetBurner 3.1
Recovery for MOD5441x and NANO54415 Modules

In a situation in which the module may become unresponsive, such as when a configuration record is corrupt, you may want to force the device to boot to the alternate monitor. This can be accomplished by using the module's recover jumper.

Step 1: Getting to the Alternate Monitor

There is the primary boot monitor, accessible by entering the 'A' (0x41) character immediately on boot. This should allow you to recover the module normally. If for some reason that fails, or you cannot enter the 'A' character, the MOD5441X and NANO54415 both contain a secondary boot monitor to allow the user to recover from (virtually) all software or configuration faults. The procedure is:

  • Power off the module.
  • Short the alternate boot jumper.
  • Power on the module.
  • Wait for the module to finish boot and enter the monitor.
  • Remove the short on the alternate boot jumper.

Recovery Jumper Locations

NANO54415

The boot jumper is a pair of circular pads located near the middle line of the board near the connector.

NanoJumper.jpg
NANO54415 Recovery Jumper Location

MOD5441x

he boot jumper is the unpopulated header 'TP1', located near the Ethernet jack.

Mod5441xJumper.jpg
MOD5441x Recovery Jumper Location

Step 2: I'm in the monitor. Now what?

Once in the alternate boot monitor you can access the module using IPSetup and Autoupdate. You can also download an application through the serial port using the FLA command (type help at the NB> prompt for a list of commands). The module has booted with a default configuration record. If your configuration is corrupt you can use IPSetup or the "setup" command from the serial port interface to set the configuration parameters back to good values.