User manual

Table Of Contents
Appendix G
Rev C Electronics Board User Interface
MMP Power Up Sequence
The system displays the storage capacity of the flash card and the number of data
files that can be accommodated by the file system.
This chapter illustrates the firmware menus, commands, and screens used with the Rev C
electronics board. Before using the firmware, become familiar with these concepts:
Re-booting the System
System Prompts and Key Combinations
Using the File Capture Utility
Powering Down the MMP
Power Up Sequence
When you connect the main lithium battery pack to the BATTERY connector on the
motherboard, the micro-controller automatically loads the firmware into the TT8v2 RAM.
Several steps occur during the power up sequence.
System initialization countdown:
The system initializes the TT8v2 and the AT8 to default state and verifies that the
AT8 and flash card are present and functioning. Flash card operations are
disabled if the flash card is not detected.
Initialization displays a welcome message and begins a 30 second countdown.
The operator types [CTRL]-[C] to gain control. If the operator does not interrupt
the countdown, the Unattended Reset, Autonomous Operation (URAO) attempts
to restart the deployment (URAO is described in the “Watchdog Reset Test
Example” section of this chapter).
Watchdog circuit activation:
The system activates the watchdog circuit. A warning displays if a problem is
detected and the operator can type ‘w’ or ‘W’ at the Main Menu to manually
trigger watchdog activation.
Flash card sizing:
G-1