AT AT-LA500 User manual

RELEASE 3.4 – JUNE 2009 1
USER MANUAL
Active Technologies S.r.l.
www.activetechnologies.it
AT-LA500
USB Logic Analyzer

AT LA500 – USER MANUAL CONTENTS
RELEASE 3.4 – JUNE 2009 3
Contents
ACTIVE TECHNOLOGIES S.R.L. .................................................................................................................................. 1
USB LOGIC ANALYZER .................................................................................................................................................. 1
INTRODUCTION ................................................................................................................................................................ 7
OVERVIEW .......................................................................................................................................................................... 7
OPERATING PRINCIPLES...................................................................................................................................................... 7
GETTING STARTED ......................................................................................................................................................... 9
HARDWARE REQUIREMENTS .............................................................................................................................................. 9
Minimum system requirements ..................................................................................................................................... 9
Suggested requirements ................................................................................................................................................ 9
INSTRUMENT DESCRIPTION .............................................................................................................................................. 10
PROBES DESCRIPTION ....................................................................................................................................................... 12
INSTRUMENT DISCONNECTION ......................................................................................................................................... 13
PROBE CONNECTION ......................................................................................................................................................... 13
SOFTWARE LOADING ........................................................................................................................................................ 14
GUIDE TO THE FIRST ACQUISITION ................................................................................................................................... 15
Probe connection ........................................................................................................................................................ 15
Software loading ......................................................................................................................................................... 15
Create a Workspace .................................................................................................................................................... 15
AT-LA500 SOFTWARE ................................................................................................................................................... 19
MENU BAR ........................................................................................................................................................................ 20
ile .............................................................................................................................................................................. 20
View ............................................................................................................................................................................. 20
Tools ............................................................................................................................................................................ 20
Window ....................................................................................................................................................................... 20
Help ............................................................................................................................................................................. 20
STATUS BAR ..................................................................................................................................................................... 21
TOOL BAR ......................................................................................................................................................................... 21
SOLUTION EXPLORER ....................................................................................................................................................... 22
SIGNAL DEFINITION ......................................................................................................................................................... 22
Adding a signal ........................................................................................................................................................... 23
Adding a bus ............................................................................................................................................................... 23
Removing a signal or a bus ........................................................................................................................................ 23
Editing a signal or bus name ...................................................................................................................................... 24
SETTINGS .......................................................................................................................................................................... 24
SAMPLING......................................................................................................................................................................... 24
Normal Timing Analysis ............................................................................................................................................. 24
State Analysis .............................................................................................................................................................. 26
NORMAL AND STATE ANALYSIS TRIGGER ....................................................................................................................... 28
Trigger Levels ............................................................................................................................................................. 28
Edges and Levels ........................................................................................................................................................ 29
Conditions on edges.................................................................................................................................................... 29
Conditions on logic levels .......................................................................................................................................... 29
Relationship between trigger conditions .................................................................................................................... 30
Pretrigger, PretriggerHS and DelayHS ..................................................................................................................... 30
I2C TRIGGER ..................................................................................................................................................................... 32
Address ........................................................................................................................................................................ 32
Address&Data ............................................................................................................................................................ 34
Pretrigger .................................................................................................................................................................... 35
SPI/µWIRE TRIGGER ........................................................................................................................................................ 36
SPI Trigger Options.................................................................................................................................................... 37
Pretrigger .................................................................................................................................................................... 37
UART/RS232 TRIGGER ................................................................................................................................................... 38
UART Trigger Options ............................................................................................................................................... 39
Pretrigger .................................................................................................................................................................... 39

AT LA500 – USER MANUAL CONTENTS
RELEASE 3.4 – JUNE 2009 4
PROBES ............................................................................................................................................................................. 40
DATA AC UISITION ...................................................................................................................................................... 42
CHANNEL STATUS ............................................................................................................................................................ 42
Signal Definition Values ............................................................................................................................................. 42
Pod Status ................................................................................................................................................................... 42
START A DATA ACQUISITION ............................................................................................................................................ 43
STOPPING THE ACQUISITION ............................................................................................................................................. 43
TIPS FOR A GOOD ACQUISITION ........................................................................................................................................ 43
DATA VISUALIZATION ................................................................................................................................................. 45
MIXED SIGNAL DISPLAY MODE ....................................................................................................................................... 45
Analog-Digital Delay Alignement window ................................................................................................................ 45
WAVEFORM VIEW ............................................................................................................................................................ 46
Create a Waveform View window .............................................................................................................................. 46
Zoom ........................................................................................................................................................................... 48
Graph Property ........................................................................................................................................................... 49
Cursors ........................................................................................................................................................................ 50
Go To a Selected Target ............................................................................................................................................. 51
Search ......................................................................................................................................................................... 53
Serial Protocol Interpreter ......................................................................................................................................... 55
STATE LISTING ................................................................................................................................................................. 56
Create a State Listing window ................................................................................................................................... 56
Cursors ........................................................................................................................................................................ 57
Browse the State Listing window and export data ..................................................................................................... 58
Search ......................................................................................................................................................................... 59
Serial Protocol Interpreter ......................................................................................................................................... 60
AT-XSS EXPANSION BUS .............................................................................................................................................. 60
DIGITAL PATTERN GENERATOR-SAMPLER (OPTIONAL) ............................................................................... 62
PROBES DESCRIPTION ....................................................................................................................................................... 63
SIGNALS DESCRIPTION ..................................................................................................................................................... 64
COMMAND BAR ................................................................................................................................................................ 65
PROJECT WINDOW ............................................................................................................................................................ 65
TREE FUNCTIONALITIES ................................................................................................................................................... 66
SETTINGS .......................................................................................................................................................................... 66
GENERAL .......................................................................................................................................................................... 66
SERIALIZER (SDK ONLY) ................................................................................................................................................. 67
CLOCK GENERATOR ......................................................................................................................................................... 69
TRIGGERING ..................................................................................................................................................................... 70
Edges and Levels ........................................................................................................................................................ 70
Conditions on edges.................................................................................................................................................... 71
Conditions on logic levels .......................................................................................................................................... 71
Relationship between trigger conditions .................................................................................................................... 72
SIGNAL DEFINITION ..................................................................................................................................................... 73
Add a signal ................................................................................................................................................................ 73
Add a bus .................................................................................................................................................................... 73
Remove a signal or a bus ........................................................................................................................................... 74
Edit a signal or bus name ........................................................................................................................................... 74
STROBE .............................................................................................................................................................................. 75
DIGITAL EDITOR ............................................................................................................................................................ 76
Basic Waveform Commands ....................................................................................................................................... 76
New Waveform window .............................................................................................................................................. 76
Digital Editor Window ............................................................................................................................................... 77
Zoom ........................................................................................................................................................................... 78
Digital Editor Window Toolbar ................................................................................................................................. 80
Data Editor ................................................................................................................................................................. 83

AT LA500 – USER MANUAL CONTENTS
RELEASE 3.4 – JUNE 2009 5
Waveform View Settings ............................................................................................................................................. 83
Cursors ........................................................................................................................................................................ 85
Go To a Selected Target ............................................................................................................................................. 86
Search ......................................................................................................................................................................... 86
Waveform Sequencer Editor ....................................................................................................................................... 88
DATA VISUALIZATION ................................................................................................................................................. 91
WAVEFORM VIEW ............................................................................................................................................................ 91
Create a Waveform View window .............................................................................................................................. 91
STATE LISTING ................................................................................................................................................................. 94
Create a State Listing window ................................................................................................................................... 94
Cursors ........................................................................................................................................................................ 95
Search ......................................................................................................................................................................... 97

AT LA500 – USER MANUAL INTRODUCTION
RELEASE 3.4 – JUNE 2009 7
Introduction
Overview
AT LA is an instrument able to acquire digital data through 36 channels, divided in 4 banks of 9
channels each and to visualize their time behavior thanks to the dedicated software.
AT LA is available in different configurations, depending on the maximum available memory
(varying from 2M to 4M samples).
AT LA is connected to the system under test by means of probes with different electrical
characteristics, depending on the signals to be acquired. Each probe supports 18 channels, divided
in two banks of 9 channels each. Each probe is hot pluggable and is automatically recognized. Four
independent and programmable thresholds are available (one for each bank of 9 channels) and used
by active probes to discriminate between low and high levels.
Data acquisition starts when a triggering event is detected by the instrument. The trigger can be
configured by the user by selecting the suitable conditions on signal edges or on the input signal
levels. Furthermore, it is possible to generate internally a trigger event so that data acquisition is
independent of applied signals and it is performed automatically (free acquisition) or enabled by the
user (manual acquisition).
AT LA can also trigger on events occurring on many serial protocols (i.e. I2C, SPI, RS232) and
then analyze the packets of data transferred.
Once data acquisition is terminated, data are transferred to the PC through a USB 2.0 or a USB 1.1
connection and then visualized as waveforms or values.
AT LA can sample input signals by using an internal clock signal (Time Analysis), whose
frequency can be reduced on the basis of the signal to be acquired, or it can synchronize signal
sampling to a signal clock provided by the system under test (State Analysis).
Operating principles
Digital signals acquisition means: i) to sample input signals, ii) to convert this values in logic values
(0 and 1), iii) to organize these values in a set of waveforms.
To establish the logic value of a sampled signal, it is necessary to compare the input value to a
reference voltage, called threshold, that can assume a fixed value or can be varied depending on the
used probe. If the input value is greater then the threshold, it will be converted to a high logic state
(1), otherwise it will be converted to a low logic state (0).

AT LA500 – USER MANUAL INTRODUCTION
RELEASE 3.4 – JUNE 2009 8
To detect the trigger event starting data acquisition the signal status must be monitored
continuously. The operating principle of a Logic Analyzer can then be schematically represented as:
Note: This manual refers to a single AT Logic Analyzer. However, since up to 8 AT-LA can be
connected together to increase the number of examined channels up to 288.

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 9
Getting started
Hardware requirements
Minimum system requirements
• Microsoft™ Windows® 2000 or XP operating system;
• Pentium® III processor;
• 128 MBytes RAM;
• 100 MBytes available on hard disk for software installation;
• 800x600 video resolution;
• USB 1.1 connection.
Suggested requirements
• Microsoft™ Windows® XP operating system;
• Pentium® IV processor;
• 512 MBytes RAM;
• 1024x768 video resolution;
• USB 2.0 connection.

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 10
Instrument description
Ch. 35 - 18 Ch. 17 - 0
Pod B
50 0 MS/ s USB Logi c Anal y zer
AT-LA500 Status
Pod A
AT LA500 – Front view
AT LA500 – Rear view
USBAT EXPANSION BUSTRI ER OUT TRI ER IN DC INPOWER
O
I

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 11
• Pods A and B: probe connectors;
• Power led: it indicates whether the instrument is ON;
• Status led: it indicates the instrument status as further specified;
• Power connector: connector for the external power supply
• Power on switch;
• USB connector;
• AT expansion bus connector: connector for the AT expansion bus, a dedicated cable used
to connect several instruments and also to connect an external device, like an oscilloscope,
(with optionally AT scope card);
Status Led
The status led may be: ON, OFF, or blinking and it indicates different operating conditions.
The status led is ON when:
• The instrument is ON, it is connected to the PC and its drivers have been correctly installed.
The status led is OFF when:
• The instrument is switched on but is not connected to the PC;
• The instrument is switched on and it is connected to the PC but its drivers have not been
installed;
• The instrument has been disconnected following the procedure described in the Remove an
AT Logic Analyzer paragraph.
The status led is blinking when:
• The instrument is reconfiguring;

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 12
Probes description
Probes have to be connected to the testing board by means of opportune connectors. Regarding the
probes connected to the Pod A the correspondence between the pins and the number of channels is
reported in the following tables:
Bank 0 (Ch. 8..0):
Ch.8 Ch.7 Ch.6 Ch.5 Ch.4 Ch.3 Ch.2 Ch.1 Ch.0 n.c.
n.c. GND n.c. GND n.c. GND n.c. GND n.c. n.c.
Bank 1 (Ch 17..9):
Ch.17 Ch.16 Ch.15 Ch.14 Ch.13 Ch.12 Ch.11 Ch.10 Ch.9 n.c.
n.c. GND n.c. GND n.c. GND n.c. GND n.c. n.c.
Regarding the probes connected to the Pod B the correspondence between the pins and the number
of channels is reported in the following tables:
Bank 2 (Ch. 26..18):
Ch.26 Ch.25 Ch.24 Ch.23 Ch.22 Ch.21 Ch.20 Ch.19 Ch.18 n.c.
n.c. GND n.c. GND n.c. GND n.c. GND n.c. n.c.
Bank 3 (Ch. 35..27):
Ch.35 Ch.34 Ch.33 Ch.32 Ch.31 Ch.30 Ch.29 Ch.28 Ch.27 n.c.

AT
The
All
I
Before disconnecting or switching OFF an
mouse
Analyzer”.
Note
Probe connection
Data acquisition requires at least
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
setup parameters.
Note
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
to channels 18..35
Note
AT
LA500 – U
SER MANUAL
n.c.
The
correspondence
All
white
cables are ground connected
I
nstrument disconnection
Before disconnecting or switching OFF an
mouse
button
Analyzer”.
Note
:
If an instrument that has not been disabled is switched off or disconnected, its software may
not work properly.
Probe connection
Data acquisition requires at least
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
setup parameters.
Note
:
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
to channels 18..35
Note
:
All ground connectors are electrically connected. A wrong connection may cause shor
circuits and damage the system under test.
SER MANUAL
n.c.
GND
correspondence
between the channels and the pod cables
Colours
Brown
Orange
Yellow
Purple
cables are ground connected
nstrument disconnection
Before disconnecting or switching OFF an
button
on the
If an instrument that has not been disabled is switched off or disconnected, its software may
not work properly.
Probe connection
Data acquisition requires at least
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
setup parameters.
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
to channels 18..35
All ground connectors are electrically connected. A wrong connection may cause shor
circuits and damage the system under test.
n.c.
GND
between the channels and the pod cables
Colours
Black
Brown
Red
Orange
Yellow
Green
Blue
Purple
Gray
cables are ground connected
nstrument disconnection
Before disconnecting or switching OFF an
icon on the application bar and by selecting “
If an instrument that has not been disabled is switched off or disconnected, its software may
not work properly.
Probe connection
Data acquisition requires at least
one probe connected to
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
circuits and damage the system under test.
GND
n.c.
between the channels and the pod cables
Pod A
Bank 0
0
1
2
3
4
5
6
7
8
cables are ground connected
.
Before disconnecting or switching OFF an
AT
icon on the application bar and by selecting “
If an instrument that has not been disabled is switched off or disconnected, its software may
one probe connected to
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
circuits and damage the system under test.
GND
between the channels and the pod cables
Channels
Pod A
Bank 1
9
10
11
12
13
14
15
16
17
LA500
, it must be disabled by clicking with the left
icon on the application bar and by selecting “
If an instrument that has not been disabled is switched off or disconnected, its software may
one probe connected to
t
he
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
the corresponding enumeration for signals and
grounds. Signals present on a probe connected to
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
circuits and damage the system under test.
n.c.
GND
between the channels and the pod cables
colours
is the following:
Channels
Pod B
Bank 2
18
19
20
21
22
23
24
25
26
, it must be disabled by clicking with the left
icon on the application bar and by selecting “
If an instrument that has not been disabled is switched off or disconnected, its software may
he
instrument. Probes can be plugged
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
Probes must be connected to the system under test by mean
s
of the provided connectors, following
grounds. Signals present on a probe connected to
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
GND
n.c.
is the following:
Pod B
Bank 3
27
28
29
30
31
32
33
34
35
, it must be disabled by clicking with the left
icon on the application bar and by selecting “
Safely remove
If an instrument that has not been disabled is switched off or disconnected, its software may
instrument. Probes can be plugged
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
of the provided connectors, following
grounds. Signals present on a probe connected to
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
n.c.
is the following:
, it must be disabled by clicking with the left
Safely remove
USB Logic
If an instrument that has not been disabled is switched off or disconnected, its software may
instrument. Probes can be plugged
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
Never remove a probe during data acquisition: acquired data may not be coherent.
of the provided connectors, following
grounds. Signals present on a probe connected to
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
, it must be disabled by clicking with the left
USB Logic
If an instrument that has not been disabled is switched off or disconnected, its software may
instrument. Probes can be plugged
in
or removed even when the instrument is on and the software is under execution. Any time a probe is
connected or removed, the software notifies the event and consequently enables or disables t
he
of the provided connectors, following
grounds. Signals present on a probe connected to
Pod A correspond to channels 0..17, while those present on a probe connected to Pod B correspond
All ground connectors are electrically connected. A wrong connection may cause shor
t

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 14
Software loading
Note: Before loading the AT-LA500 control software it is necessary that the instrument is switched
ON and connected to the PC and that the drivers have been correctly installed. If the Logic
Analyzer is switched O or if it is non connected to the PC, the software DEMO version
will be loaded.
Once the software has been loaded, the AT-LA Start Page window appears. At this point a new
project can be created, or an existing project can be opened. If available, the list of the recent
projects appears on the left of the main window. If an Internet connection is available, the Active
Technologies website news are shown in the Start Page.

AT
Guide to the first acq
The procedure required to perform a data acquisition
robe connection
Software loading
C
AT
LA500 – U
SER MANUAL
Guide to the first acq
The procedure required to perform a data acquisition
robe connection
•
Connect a probe to Pod A;
•
Connect channel 0 of the probe to a signal source of the system under test (for instance a
signal clock) whose
•
Connect the probe round to the signal ground;
Software loading
•
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
have been correctly installed;
•
Launch
C
reate a
Workspace
•
Click on Create Workspace on the
•
In the
folder path where the acquired
press OK;
•
On the left of the main window will appear the project tree column;
•
Double click on the Signal Definition icon
SER MANUAL
Guide to the first acq
The procedure required to perform a data acquisition
robe connection
Connect a probe to Pod A;
Connect channel 0 of the probe to a signal source of the system under test (for instance a
signal clock) whose
Connect the probe round to the signal ground;
Software loading
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
have been correctly installed;
Launch
AT
LA software;
Workspace
Click on Create Workspace on the
In the
New Workspace window, you can insert the desired name for the project, and the
folder path where the acquired
press OK;
On the left of the main window will appear the project tree column;
Double click on the Signal Definition icon
Guide to the first acq
uisition
The procedure required to perform a data acquisition
Connect a probe to Pod A;
Connect channel 0 of the probe to a signal source of the system under test (for instance a
signal clock) whose
amplitude does not exce
Connect the probe round to the signal ground;
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
have been correctly installed;
LA software;
Workspace
Click on Create Workspace on the
New Workspace window, you can insert the desired name for the project, and the
folder path where the acquired
On the left of the main window will appear the project tree column;
Double click on the Signal Definition icon
uisition
The procedure required to perform a data acquisition
Connect channel 0 of the probe to a signal source of the system under test (for instance a
amplitude does not exce
Connect the probe round to the signal ground;
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
have been correctly installed;
Click on Create Workspace on the
Getting Started
New Workspace window, you can insert the desired name for the project, and the
folder path where the acquired
and settings
On the left of the main window will appear the project tree column;
Double click on the Signal Definition icon
The procedure required to perform a data acquisition
is
here described
Connect channel 0 of the probe to a signal source of the system under test (for instance a
amplitude does not exce
ed
the probe limit;
Connect the probe round to the signal ground;
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
Getting Started
box
New Workspace window, you can insert the desired name for the project, and the
and settings
data will be stored.
On the left of the main window will appear the project tree column;
Double click on the Signal Definition icon
: the Signal Definition window will appear;
here described
step
Connect channel 0 of the probe to a signal source of the system under test (for instance a
the probe limit;
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
box
on the left of the main window.
New Workspace window, you can insert the desired name for the project, and the
data will be stored.
Insert required data then
On the left of the main window will appear the project tree column;
: the Signal Definition window will appear;
step
by step
.
Connect channel 0 of the probe to a signal source of the system under test (for instance a
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
on the left of the main window.
New Workspace window, you can insert the desired name for the project, and the
Insert required data then
On the left of the main window will appear the project tree column;
: the Signal Definition window will appear;
.
Connect channel 0 of the probe to a signal source of the system under test (for instance a
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
on the left of the main window.
New Workspace window, you can insert the desired name for the project, and the
Insert required data then
: the Signal Definition window will appear;
Connect channel 0 of the probe to a signal source of the system under test (for instance a
Check whether the instrument is connected to the PC and that is switched ON. Drivers must
New Workspace window, you can insert the desired name for the project, and the
Insert required data then
: the Signal Definition window will appear;

AT
AT
LA500 – U
SER MANUAL
•
Enter a name of a signal in the
button to add it to the list of the signals;
•
Double click the Ch0 row on the channel list available on the right. This will set the
correspondence of the channel 0 of the AT
previous point. Click OK to close the Signal
•
Double click on the Setting icon
SER MANUAL
Enter a name of a signal in the
button to add it to the list of the signals;
Double click the Ch0 row on the channel list available on the right. This will set the
correspondence of the channel 0 of the AT
previous point. Click OK to close the Signal
Double click on the Setting icon
Enter a name of a signal in the
button to add it to the list of the signals;
Double click the Ch0 row on the channel list available on the right. This will set the
correspondence of the channel 0 of the AT
previous point. Click OK to close the Signal
Double click on the Setting icon
Enter a name of a signal in the
Bus or Signal Name
button to add it to the list of the signals;
Double click the Ch0 row on the channel list available on the right. This will set the
correspondence of the channel 0 of the AT
previous point. Click OK to close the Signal
Double click on the Setting icon
: the Settings window will appear;
Bus or Signal Name
box, i.e. CLOCK
Double click the Ch0 row on the channel list available on the right. This will set the
correspondence of the channel 0 of the AT
LA500 with the signal “CLOCK” defined at
previous point. Click OK to close the Signal
s
Definition window.
: the Settings window will appear;
box, i.e. CLOCK
Double click the Ch0 row on the channel list available on the right. This will set the
LA500 with the signal “CLOCK” defined at
Definition window.
: the Settings window will appear;
box, i.e. CLOCK
,
then click on the
Double click the Ch0 row on the channel list available on the right. This will set the
LA500 with the signal “CLOCK” defined at
Definition window.
: the Settings window will appear;
then click on the
Double click the Ch0 row on the channel list available on the right. This will set the
LA500 with the signal “CLOCK” defined at
Double click the Ch0 row on the channel list available on the right. This will set the
LA500 with the signal “CLOCK” defined at
the

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 17
• In the Sampling tab, choose the better Sample Rate (i.e. 5x the frequency of the signal to
acquire);

AT
AT
LA500 – U
SER MANUAL
•
In the Triggering tab, click on
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
the AT
•
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
•
Press the Start button
channel
the Add All button
Waveform View. Cli
window on the trigger event.
SER MANUAL
In the Triggering tab, click on
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
the AT
LA500;
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
Press the Start button
channel
0, the instrument will trigger,
the Add All button
Waveform View. Cli
window on the trigger event.
In the Triggering tab, click on
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
Press the Start button
on the toolbar to start the acquisition. At the first edge on the
0, the instrument will trigger,
the Add All button
,
then click OK. Now you can examine acquired data on the
Waveform View. Cli
ck on the
window on the trigger event.
In the Triggering tab, click on
ConditionA
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
on the toolbar to start the acquisition. At the first edge on the
0, the instrument will trigger,
t
hen a
then click OK. Now you can examine acquired data on the
ck on the
Go to
window on the trigger event.
ConditionA
branch of the Level0 tree; click on the Ch0 row
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
on the toolbar to start the acquisition. At the first edge on the
hen a
Signal Selection window will appear. Click on
then click OK. Now you can examine acquired data on the
button on the toolbar to center the Waveform
branch of the Level0 tree; click on the Ch0 row
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
on the toolbar to start the acquisition. At the first edge on the
Signal Selection window will appear. Click on
then click OK. Now you can examine acquired data on the
button on the toolbar to center the Waveform
branch of the Level0 tree; click on the Ch0 row
(it now contains also the signal name: CLOCK); click on the “both edges” icon
the condition A of the trigger level 0 is verified on every event occurring on
In the Probes tab you can set the threshold of the logic levels detected by the AT
This options is available only for active probes. Press OK to close the window;
on the toolbar to start the acquisition. At the first edge on the
Signal Selection window will appear. Click on
then click OK. Now you can examine acquired data on the
button on the toolbar to center the Waveform
branch of the Level0 tree; click on the Ch0 row
(it now contains also the signal name: CLOCK); click on the “both edges” icon
. Now
the condition A of the trigger level 0 is verified on every event occurring on
the channel 0 of
In the Probes tab you can set the threshold of the logic levels detected by the AT
LA500.
This options is available only for active probes. Press OK to close the window;
on the toolbar to start the acquisition. At the first edge on the
Signal Selection window will appear. Click on
then click OK. Now you can examine acquired data on the
button on the toolbar to center the Waveform
branch of the Level0 tree; click on the Ch0 row
. Now
the channel 0 of
LA500.
on the toolbar to start the acquisition. At the first edge on the
Signal Selection window will appear. Click on
then click OK. Now you can examine acquired data on the
button on the toolbar to center the Waveform

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 19
AT-LA500 Software
AT LA Software allows controlling all settings related to the instrument and to the open acquisition
windows. Closing the AT LA Navigator means to exit from the instrument control program.

AT LA500 – USER MANUAL
RELEASE 3.4 – JUNE 2009 20
Menu bar
The following menu are available on the menu bar:
File
• New Workspace: it allows creating a new workspace, by specifying its name and its work
directory;
• Open Workspace…: it allows opening an already existing project;
• Open Settings…: it allows loading settings already saved;
• Open Signal Definition… : it allows loading signal definitions already saved;
• Save Settings As…: it allows saving current settings with another name;
• Save Context: it allows saving current project;
• Save Acqisition As...: it allows saving current acquisition data with another name
• Save Signal Definition As…: it allows saving current signal definition with another name;
• Import Acquisition…: it allows loading acquisitions data previously saved;
• Close Current Window: Closes the window currently selected;
• Close All Window: Closes all the windows in the project;
• Exit: it allows closing the program.
View
• AT-LA Solution Explorer: it shows the project explorer tree;
• AT-LA Start Page: it shows the Start Page, with the recent projects list.
Tools
• Pod Status…: it opens the Pod Status Reader window, that shows the current logic status of
all the inputs;
• Options: it allows changing the default projects folder;
• Analog Delay...: it opens the Analog Delay window, that allows aligning correctly digital
and analog data in the Mixed Signal Display Mode (see Analog Digital Delay Alignement
window chapter for details)
Window
• Lists the name of the project windows and allow showing the one which is selected.
Help
• About…: it shows the information related to the current software release.