Service manual

3-1

Chapter 3:

Bridge Debugger

Diagnostic Tool

3.1 Introduction

The bridge debugger software is a diagnostic tool built into the bridge/buffer mod-

ule PCB. This tool has several features that aid in the debugging of bridge and

buffer problems on the Avantra 36/44.

The debugger port software monitors the ﬂow of bridge and buffer commands to

and from the DEC. Monitoring takes place while the system runs in normal opera-

tion mode (not service mode). The debugger also provides a means for testing var-

ious components in the bridge/buffer area and for checking the status of all the

bridge/buffer related sensors.

This chapter provides a detailed description for:

• Setting Up the Debugger Port

• Bridge Debugger User Interface

• Terminal Code Identiﬁers

• Bridge Unlock Sequence

• Bridge States

• Bridge State Responses

• Bridge Error Codes

• Bridge Sensor Status

• Bridge Parameters

• Bridge/Buffer Commands