HP E2470A User manual

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User’s Guide
Publication Number E2470-97001
First Edition, February 1996
For Safety Information, Warranties, and Regulatory Information, see the
pages at the end of this manual.
Copyright Hewlett-Packard Company 1995, 1996
All Rights Reserved.
HP E2470A MC68HC16Y1
Preprocessor Interface

The HP E2470A Preprocessor
Interface—At a Glance
The HP E2470A Preprocessor Interface provides a complete interface for
state or timing analysis between any Motorola MC68HC16Y1 target system
and the following HP logic analyzers:
•HP 16550A (one-card)
•HP 16554A/55A/56A (one-card)
•HP 1660A/61A/62A
•HP 1660AS/61AS/62AS
For this preprocessor, two configuration files are provided for each analyzer:
one for timing measurements and one for state measurements. These files
allocate channels, label buses, and label individual signals according to the
predefined format of the preprocessor connectors. For state measurements,
an inverse assembler converts captured microcontroller instruction cycles
into MC68HC16Y1 assembly language mnemonics.
The slide switches are used to inform the inverse assembler about the
microcontroller configuration. The user must set these switches
appropriately before making a state measurement.
The interface contains 13 connectors: 7 for timing measurements, 4 for state
measurements, and 2 for the background debug monitor (BDM) interface.
The timing connectors present raw microcontroller signals to the logic
analyzer, while the state connectors present both raw and generated signals.
The BDM interface provides easy connection for an external controller to
view and alter microcontroller registers and system memory.
The HP E2470A is attached to the target system via an HP E5335A probe
adapter.
ii

HP E2470A Preprocessor Interface
Introduction
The HP E2470A Preprocessor Interface—Ata Glance
iii

In This Book
This book is the user’s guide for the HP E2470A Preprocessor Interface. It
assumes that you have a working knowledge of the logic analyzer used and
the microcontroller being analyzed.
This user’s guide is organized into three chapters:
Chapter 1 explains how to attach the preprocessor to the target and
how to configure the logic analyzer for state and/or timing analysis.
Chapter 2 provides reference information on the format specification
and symbols configured by the preprocessor interface software and
information about the inverse assemblers and status encoding.
Chapter 3 contains reference information on the preprocessor
interface hardware, including the characteristics and signal mapping
for the preprocessor interface.
For more information on the logic analyzers or microcontroller, refer to the
appropriate reference manual for those products.
Introduction
The HP E2470APreprocessor Interface—At a Glance
iv

Contents
1 Setting Up the Preprocessor Interface
Before You Begin 1–3
Setting Up the Preprocessor Interface Hardware 1–4
To power up or power down 1–5
To protect the preprocessor interface when not in use 1–5
To set the slide switches 1–5
To connect to the target system 1–7
To connect the termination adapters 1–8
Using the flex adapter 1–8
Connecting to the Logic Analyzer 1–10
To connect to the HP 16550A one-card analyzer 1–10
To connect to the HP 16554A/55A/56A analyzer 1–11
To connect to the HP 1660A/AS analyzer 1–11
To connect to the HP 1661A/AS analyzer 1–12
To connect to the HP 1662A/AS analyzer 1–12
Loading the Preprocessor Interface Software 1–13
To load the configuration and inverse assembler 1–13
To connect to the Background Debug Monitor interface 1–14
2 Analyzing the Motorola MC68HC16Y1
Displaying Information 2–3
To display the format specification 2–3
To display the configuration labels and symbols 2–5
To display captured state data 2–7
Using the Inverse Assembler 2–8
To use the inverse assembly options 2–10
To synchronize the inverse assembler 2–11
Inverse assembler error messages 2–12
v

3 Preprocessor Interface Hardware Reference
Operating Characteristics 3–3
Theory of Operation and Clocking 3–4
Signal-to-Connector Mapping 3–7
State Connector Signal Definition 3–7
Timing Connector Signal Definition 3–10
PQFP to PGA Connector Signal Definition 3–14
Circuit Board Dimensions 3–21
Repair Strategy 3–22
A If You Have a Problem
Intermittent data errors A–3
Unwanted triggers A–3
No activity on activity indicators A–4
No trace list display A–4
Target system will not boot up A–5
Erratic trace measurements A–6
Capacitive loading A–6
No inverse assembly or incorrect inverse assembly A–7
Inverse assembler will not load or run A–8
An event wasn’t captured by one of the modules A–9
Messages A–10
“. . . Inverse Assembler Not Found” A–10
“Measurement Initialization Error” A–11
“No Configuration File Loaded” A–11
“Selected File is Incompatible” A–11
“Slow or Missing Clock” A–11
“Waiting for Trigger” A–12
Contents
vi

1
Setting Up the Preprocessor
Interface

Setting Up the Preprocessor Interface
This chapter explains how to set up the HP E2470A Preprocessor Interface
hardware and software, configure the preprocessor, and connect the
preprocessor to supported logic analyzers.
1–2

Before You Begin
This section lists the logic analyzers supported by the HP E2470A and
provides other information about the analyzers and the preprocessor
interface.
Equipment Supplied
•The preprocessor interface circuit card.
•The configuration and inverse assembler software on a 3.5-inch disk.
•This User’s Guide.
Minimum Equipment Required
•The HP E2470A preprocessor interface.
•The HP E5335A probe adapter.
•The configuration and inverse assembler software on a 3.5-inch disk.
•One of the logic analyzers listed in the following table:
Logic Analyzers Supported
Logic Analyzer Channel Count State Speed Timing Speed MemoryDepth
16550A
(one card) 102 100 MHz 250 MHz 4 k states
16554A
(one card) 68 70 MHz 125 MHz 512 k states
16555A
(one card) 68 110 MHz 250 MHz 1 M states
16556A
(one card) 68 100 MHz 200 MHz 1 M states
1660A/AS 136 100 MHz 250 MHz 4 k states
1661A/AS 102 100 MHz 250 MHz 4 k states
1662A/AS 68 100 MHz 250 MHz 4 k states
1–3