ASIX OMEGA Manuale utente

OMEGA

Reference Manual

LOGIC ANALYZER

ASIX s.r.o.

Staropramenna 4

150 00 Prague

Czech Republic

www.asix.net

support@asix.net

sales@asix.net

ASIX s.r.o. reserves the right to make changes to this document, the

latest version of which can be found on the Internet.

ASIX s.r.o. renounces responsibility for any damage caused by the use

of ASIX s.r.o. products.

Table of Contents

General Information 5

1.1 Product Overview

1.2 Package Contents

1.3 Panel Overview

1.4 Product Version

Getting started 7

2.1 Installation on Windows

2.2 Installation on Linux

2.3 Target connection

2.4 Acquire the data

Controls 9

3.1 Indicators and button

3.2 Target Connection

Using SIGMA & OMEGA Logic

Analyzers Software

4.1 Clock Source

11Modes of operation4.1.1

13Synchronous Clock Timing4.1.2

4.2 Input pins

4.3 Traces

4.4 Trigger Settings

15Basic Trigger Settings4.4.1

15Advanced Trigger Settings4.4.2

16Trigger Position within Acquisition4.4.3

17External Triggering4.4.4

17Other Trigger Settings4.4.5

18Amount of triggers4.4.6

4.5 Working with the acquired data

19Navigation and analysis4.5.1

20UART Protocol Decoder4.5.2

21SPI Bus Decoder4.5.3

21I2C Bus decoder4.5.4

22USB 1.1 Analyzer Plugin4.5.5

Installation 22

What to measure 23

Measure tool attachment 23

Measuring 23

Processing 23

Viewing 24

Searching 25

Linking the events window with the analyzer

window 26

Gathering of related communication into trees 26

4.6 Auxiliary functions

27Insider4.6.1

29Function Generator4.6.2

4.7 Frequency Measuring

4.8 Pin View

4.9 Availability of Auxiliary Functions

4.10 Using the Application for Automated

Acquisition

4.11 Command Line Interface omegacli.exe

4.12 Data streaming using Command Line

Interface omegartmcli.exe

4.13 Conversion to and from binary data

stream using bin2stf.exe a stf2bin.exe

4.14 Working with binary data stream using

binconvert.exe

4.15 Tips on working with binary data stream

4.16 Plugins

Using the Logic Analyzer 35

5.1 Sampling Frequency

5.2 Powering the Analyzer

5.3 Using the Application as a Portable

Application

Synchronization 38

6.1 Logic Analyzer Connection to PC when

Using Synchronization

6.2 Synchronization Interconnection

38Using Synchronization Cable6.2.1

39Interconnection of two Logic Analyzers6.2.2

39Interconnection of three Logic Analyzers6.2.3

39Interconnection of more than three Logic Analyzers6.2.4

6.3 Synchronization Accuracy

Using OMEGA Logic Analyzer under

Linux

OMEGA and SIGMA2 Comparison 43

Specifications 44

Document history 46

Page 5

General Information

1.1 Product Overview

OMEGA is a logic analyzer - development tool designated

for tracing and debugging of TTL (and compatible) digital

signals.

OMEGA Logic Analyzer is the highest performance logic

analyzer by ASIX s.r.o. from series of SIGMA/SIGMA2/

OMEGA Logic Analyzers.

The OMEGA Logic Analyzer is equipped with 512Mb

ofmemory (equivalent to 64MB) and provides with up to

16 digital inputs and sampling rate of 200Msps by a

single device. More inputs and memory can be utilized

using synchronization between multiple logic analyzers

units. Built-in data compression allows for tracing of long

running signals without exhausting logic analyzer

memory. When using all 16 inputs per analyzer,

guaranteed minimum capacity is over 29 million samples1

at full speed. OMEGA uses High-Speed USB2.0

(480Mbps) which ensures both data transfer and power

delivery with a single cable. There is no additional power

supply needed.

Features:

•Up to 16TTL compatible inputs per unit

•Synchronization between multiple units

•Up to 400Msps sampling rate (limited number of

inputs)

•External clock up to 99.95MHz

•512Mb of internal memory

•Real-Time mode utilizing the memory only as a FIFO

buffer

•Advanced hardware scompression

•Flexible trigger options

•USB interface for data and power

1.2 Package Contents

Please inspect the logic analyzer mechanically and

electrically upon receiving it. Unpack all items from the

shipping box and check for any obvious signs of physical

damage that may have occurred during transportation.

Report any damage to the shipping agent immediately.

We recommend to save the original packing carton for

possible future reshipment. Every logic analyzer is

shipped with the following contents:

•OMEGA Logic Analyzer

•Target cables:

•20 individual pins (SIGMACAB)

•one-to-one 20 pins (SIGCAB20)

•one-to-one 10 pins (SIGCAB10)

•USB cable (A-B)

•CD-ROM (software, drivers)

•Synchronization header

•Synchronization cable

•Optional accessory (must be ordered separately):

•Set of 10 variously colored hooks (PicoHook10)

Verify that all ordered items are included in the shipping

container. If anything is missing, please contact your local

distributor.

Page 6

1.3 Panel Overview

Fig.2: OMEGA Panel Overview

Panel Overview

1 USB port

2 Indication LEDs

3 Multifunction Start/Stop/Trigger button

4 Target interface

1.4 Product Version

The logic analyzer may come in different hardware or

software version. This manual reflects features and

options of logic analyzer software equipment Logic

Analyzer version 3.00. Updates to the latest version of

the software are always available free of charge on the

internet at www.asix.net. The main software comes with

many supporting utilities, which may be different version.

Trade Name

Serial Number

Availability

SIGMA

Since

A6010001

Since 2007

No longer

available

SIGMA 2

Since

A6020001

Since 2011

Low cost

OMEGA

Since

A6030001

Since 2012

Flagship

Table 1: Logic Analyzer Versions

The logic analyzer software supports basic functionality of

all logic analyzer hardware versions in the table, but

advanced features availability may differ. This manual

describes the hardware and software features available

only to the OMEGA Logic Analyzer.

Detailed comparison of the logic analyzers is in the

chapter OMEGA and SIGMA2 Comparison.

1 OMEGA will use approximately 18.1bits of memory per

16 input sample.

Page 7

Getting started

Before connecting and powering up the logic analyzer,

please review and go through all the instructions in this

chapter. You will learn all basic functions required to

debug your first application with the logic analyzer.

2.1 Installation on Windows

Install the ASIX SIGMA & OMEGA Application Package

available on CD or at www.asix.net to your computer.

Check the web page periodically for software updates.

Software updates are free and may address a discovered

problems and add new features. The OMEGA Logic

Analyzer is a USB device, therefore it requires USB

drivers. The drivers are installed automatically during

software package installation. Connect OMEGA to a USB

port or aUSB hub using supplied cable. In a while green

ON-LINE LED should turn on and the OMEGA Logic

Analyzer should appear in Device manager as correctly

installed.

2.2 Installation on Linux

The software for the OMEGA Logic Analyzer is designated

for Windows, but it runs on most distributions of Linux

using Wine.

For installation instructions of ASIX SIGMA & OMEGA

Application Package on Linux see the chapter Using

OMEGA Logic Analyzer under Linux.

2.3 Target connection

The OMEGA Logic Analyzer is equipped with 16 high

impedance inputs with logic levels compatible to TTL and

auxiliary Trigger In and Trigger Out pins.

Fig.3: Target connector

Always connect the ground between the application and

the analyzer and then connect desired input pins. The

OMEGA Logic Analyzer do not isolate ground between the

PC and the application.

If you want to use TriggerIn and TriggerOut pins, use

Settings ➙ Trigger Options..., tab Other Settings.

Warning:

Trigger In and Trigger Out pins are not 5V tolerant!

Note:

Capacitance and length of the probe cables should

be taken into consideration when connecting to a

debugged application, otherwise across-talks of fast

signals may occur. The leads of the supplied cable

with individual pins may be split to reduce

capacitance between adjacent wires for mid-range

signal speeds. For high-speed signals, using of any

cable is not recommended, it is recommended to

connect directly the logic analyzer to the application.

Page 8

2.4 Acquire the data

Start the application ASIX SIGMA & OMEGA Logic

Analyzers from start menu and launch the data

acquisition by pressing Enter. The OMEGA memory will

last most probably for minutes, so you can stop data

acquisition any time by pressing button Stop Acquisition

Now.

•To zoom, select a range with mouse or use key + or *

on keyboard.

•To take back last zoom operation, use key -,

Backspace or /.

•To move over the measured data, use arrow keys →, ←,

Page Down and Page Up, mouse wheel or hold Ctrl

key while moving mouse pointer.

• Using Alt+←/Alt+→ you can jump to next change on a

line where the mouse pointer is.

•Jump to another line is possible with arrows ↑ and ↓.

•To measure time or frequency or count number of

edges, use keys Spacebar, F and Q.

•To select a trigger, press T key and to use different

clocking options, press C key.

•OMEGA Logic Analyzer supports many auxiliary

functions. You can setup them with U key (U for

utilities).

Fig.4: Counting edges in an acquisition

To start using protocol analyzers, double click any trace

label on left margin of the window to add a new line.

Every new protocol analyzer is on a separate line, called

a trace.

Page 9

Controls

3.1 Indicators and button

Main panel contains two bi-color LED indicators providing

an operator with quick status information.

ONLINE / BUSY (green/yellow LED)

off: OMEGA is in low-power (Sleep) mode or no

USB driver has been installed (Windows

only) or no synchronization signal is being

received during Daisy-Chain operation

green: OMEGA is ready to operate

yellow: OMEGA is acquiring data

TRIGGER STATUS (red/yellow LED)

off: Trigger logic is inactive - no trigger

condition has been detected

red: OMEGA is waiting for trigger condition

yellow: flashes when trigger condition or trigger

pattern has been matched

The Go button helps to control the analyzer comfortably -

it cyclically switches among essential operation states.

When it is pressed in idle state the data acquisition is

launched. When it is pressed in running state the software

trigger is initiated. When it is pressed in triggered state 1

the acquisition is stopped, idle mode is launched and the

data transfer from logic analyzer memory to PC begins.

3.2 Target Connection

Fig.5: Target connector

The OMEGA Logic Analyzer is equipped with sixteen high

impedance inputs with TTL input logic levels and 1MΩ

pull-down resistors to park the pins when they are

unused. The functions Trigger In and Trigger Out are

available. The function Power Output2 is available on

Trigger In. The function of Synchronization (Daisy-Chain

connection) is available on the Trigger In/Trigger Out

pair.

Warning:

Trigger In and Trigger Out pins are not 5V tolerant!

If you want to use TriggerIn and TriggerOut pins, use

Settings ➙ Trigger Options..., tab Other Settings.

The digital inputs are organized as two 8-pin ports (inputs

1 to 8 are merged into port 1, inputs 9 to16 are merged

into port 2). Pin-to-pin skew between inputs on a single

port is rather low while it may beconsiderably higher

between the ports.

Always connect the ground between the application and

the analyzer and then connect desired input pins. OMEGA

Logic Analyzer do not isolate ground between the PC and

the application 3.

Page 10

min.

typ.

max.

VIL

input low voltage

0.8

VIH

input high voltage

2.0

VIN

absolute rating, inputs 1..16

-0.3

5.5

VIN

absolute rating, trigger I/O

-0.3

3.6

tsksp

pin-to-pin skew within single port

tskbp

pin-to-pin skew between ports

4.8

Table 2: Inputs Electrical Specifications

Note:

Capacitance and length of the probe cables should

be taken into consideration when connecting to a

debugged application, otherwise across-talks of fast

signals may occur. The leads of the supplied cable

with individual pins may be split to reduce

capacitance between adjacent wires for mid-range

signal speeds. For high-speed signals, using of any

cable is not recommended, it is recommended to

connect directly the logic analyzer to the application.

1 When using OMEGA Real-Time mode where is

unconstrained number of triggers, end of acquisition

can be performed by long pressing of the GO button.

2 Usage of any OMEGA-powered logic level translator is

possible thanks to possibility to power it from the logic

analyzer using Power Output feature on Trigger In pin.

3 When using a USB optoisolator designed for USB Full-

Speed (12Mbps) you will benefit from unique OMEGA

feature: The logic analyzer will download the data you

are currently looking at in preference. Therefore, the

data you are looking at will be available virtually in the

same time you will focus on them.

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