Agilent DDR_Post_Process_Compliance_Tool_User_Guide DDR Post Process Compliance Tool User Guide [56] Datasheet

DDR Post Process
Compliance Tool

User’s Guide

Notices

CAUTION

WARNING

© Keysight Technologies 2008-2014

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Systems, Inc.

Software Release

06.00.0000

Edition

August 2014

Available in electronic format only

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applicable in any technical data.

Safety Notices

A CAUTION notice denotes a hazard. It
calls attention to an operating proce­dure, practice, or the like that, if not
correctly performed or adhered to,
could result in d amage to the prod uct
or loss of important data. Do not pro­ceed beyond a CAUTION notice until
the indicated conditions are fully
understood and met.

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It calls attention to an operating pro­cedure, practice, or the like that, if not
correctly performed or adhered to,
could result in personal injury or
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WARNING notice until the indicated
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2 DDR Post Process Compliance Tool User Guide

Safety Summary

CAUTION

WARNING

General Do not use this product in any manner not specified by the manufacturer. The protective features of

The following general safety precautions must be observed during all phases of operation of this
instrument. Failure to comply with these precautions or with specific warnings or operating
instructions in the product manuals violates safety standards of design, manufacture, and intended
use of the instrument. Keysight Technologies assumes no liability for the customer's failure to comply
with these requirements. Product manuals are provided with your instrument on CD-ROM and/or in
printed form. Printed manuals are an option for many products. Manuals may also be available on
the Web. Go to www.keysight.com and type in your product number in the Search field at the top of
the page.

this product may be impaired if it is used in a manner not specified in the operation instructions.

Before Applying

Power

Ground the

Instrument

Fuses See the user's guide or operator's manual for information about line-fuse replacement. Some

Do Not Operate in

an Explosive

Atmosphere

Do Not Remove the

Instrument Cover

Cleaning Clean the outside of the instrument with a soft, lint-free, slightly dampened cloth. Do not use

Do Not Modify the

Instrument

Verify that all safety precautions are taken. Make all connections to the unit before applying power.
Note the instrument's external markings described in “Safety Symbols”.

If your product is provided with a grounding type power plug, the instrument chassis and cover must
be connected to an electrical ground to minimize shock hazard. The ground pin must be firmly
connected to an electrical ground (safety ground) terminal at the power outlet. Any interruption of
the protective (grounding) conductor or disconnection of the protective earth terminal will cause a
potential shock hazard that could result in personal injury.

instruments contain an internal fuse, which is not user accessible.

Do not operate the instrument in the presence of flammable gases or fumes.

Only qualified, service-trained personnel who are aware of the hazards involved should remove
instrument covers. Always disconnect the power cable and any external circuits before removing the
instrument cover.

detergent or chemical solvents.

Do not install substitute parts or perform any unauthorized modification to the product. Return the
product to an Keysight Sales and Service Office for service and repair to ensure that safety features
are maintained.

In Case of Damage Instruments that appear damaged or defective should be made inoperative and secured against

unintended operation until they can be repaired by qualified service personnel.

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice,
or the like that, if not correctly performed or adhered to, could result in damage to the
product or loss of important data. Do not proceed beyond a CAUTION notice until the
indicated conditions are fully understood and met.

A WARNING notice denotes a hazard. It calls attention to an operating procedure,
practice, or the like that, if not correctly performed or adhered to, could result in
personal injury or death. Do not proceed beyond a WARNING notice until the indicated
conditions are fully understood and met.

DDR Post Process Compliance Tool User Guide 3

Safety Symbols

Table 1 Safety Symbol

Symbol Description

Direct current

Alternating current

Both direct and alternating current

Three phase alternating current

Three phase alternating current

Earth ground terminal

Protective earth ground terminal

Frame or chassis ground terminal

N Neutral conductor on permanently

L Line conductor on permanently installed

Terminal is at earth potential

Equipotentiality

installed equipment

equipment

On (mains supply)

Off (mains supply)

Standby (mains supply). The instrument is
not completely disconnected from the
mains supply when the power switch is in
the standby position

In position of a bi-stable push switch

4 DDR Post Process Compliance Tool User Guide

Symbol Description

Out position of a bi-stable push switch

Equipment protected throughout by
DOUBLE INSULATION or REINFORCED
INSULATION

Caution, refer to accompanying
documentation

Caution, risk of electric shock

Do not apply around or remove from
HAZARDOUS LIVE conductors

Application around and removal from
HAZARDOUS LIVE conductors is
permitted

Caution, hot surface

Ionizing radiation

CAT I IEC Measurement Category I

CAT II Measurement Category II

CAT III Measurement Category III

CAT IV Measurement Category IV

DDR Post Process Compliance Tool User Guide 5

Compliance and Environmental Information

Table 2 Compliance and Environmental Information

Safety Symbol Description

CSA is the Canadian certification mark to demonstrate compliance with the Safety
requirements.

The C-tick mark is a registered trademark of the Spectrum Management
Agency of Australia. This signifies compliance with the Australia EMC
Framework regulations under the terms of the Radio Communication Act
of 1992.

CE compliance marking to the EU Safety and EMC Directives.
ISM GRP-1A classification accord ing to the international EMC stand ard.
ICES/NMB-001 compliance marking to the Canadian EMC standard.

6 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance—At a Glance

The DDR Post Process Compliance tool evaluates the captured DDR/LPDDR data against a set of
user-defined limits to help you validate that a memory system is operating properly. The bus types
supported by this tool are:

With B4622A license

- DDR1/2/3

- LPDDR1/2

With B4622B upgrade license

- DDR1/2/3/4

- LPDDR1/2/3

The automated test application guides you through the process of selecting and configuring tests,
running tests, and evaluating the test results.

The application assumes that the Keysight logic analysis system has already been set up to properly
capture DDR data.

To use the automated test application, see:

•Chapter 2, "What's New" on page 13

•Chapter 3, "Starting the DDR Post Process Compliance Tool" on page 15

•Chapter 4, "Configuring Tests" on page 19

•Chapter 5, "Setting Up the Test Environment" on page 31

•Chapter 6, "Selecting Tests" on page 35

•Chapter 7, "Running Tests" on page 39

•Chapter 8, "Viewing Results" on page 43

•Chapter 9, "Viewing/Exporting/Printing the Report" on page 47

•Chapter 10, "Saving Test Projects" on page 51

•Chapter 11, "Creating or Opening a Test Project" on page 53

DDR Post Process Compliance Tool User Guide 7

8 DDR Post Process Compliance Tool User Guide

Contents

Safety Summary 3
Compliance and Environmental Information 6
DDR Post Process Compliance—At a Glance 7

1 About the Tool

2What's New

3 Starting the DDR Post Process Compliance Tool

To view/hide the toolbar 17

4 Configuring Tests

To set the test limits 20
To create/edit limit sets 25

To split a combined limit 26
To combine limits 27

To activate/refresh limit sets 29

5 Setting Up the Test Environment

6 Selecting Tests

7 Running Tests

To set the display preferences 42

8 Viewing Results

To change margin thresholds 45

9 Viewing/Exporting/Printing the Report

To export the report 48
To print the report 50

10 Saving Test Projects

To set AutoRecovery preferences 52

DDR Post Process Compliance Tool User Guide 9

11 Creating or Opening a Test Project

To set load preferences 54

Index

10 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

1
About the Tool

Overview of the

tests

There are two types of tests:

• Tests which check for timing violations

• Tests which check for illegal DDR state transitions

The test limits can be (and must be) configured by the user.
The provided timing violation tests include:

Table 3 Timing violation tests

ParameterDescription Test

tRAS

max

tRAS

min

tRP PRECHARGE to any other command (same bank) must be > tRP
tCCD Time between any read or write command must be > tCCD
tRRD ACTIVATE to ACTIVATE (any bank) must be >= tRRD

Row Active time ACTIVATE to
PRECHARGE/Auto-PRECHARGE

Row Active time ACTIVATE to
PRECHARGE/Auto-PRECHARGE

must be < tRASmax

must be > tRASmin

tFAW Time for four ACTIVATEs (any bank) must be >= tFAW
tRFC REFRESH to REFRESH or ACTIVATE must be > tRFC
tDARW ACTIVATE to external READ/WRITE must be > tDARW
tDRP Read to Precharge/AutoPrecharge must be > tDRP
tDRW Read to Write must be > tDRW
tDWP Write to Precharge/AutoPrecharge must be > tDWP
tDWR Write to Read must be > tDWR

11

1 About the Tool

Table 4 State machine violation tests

Description

READ or WRITE to an inactive row
REFRESH to an active bank
ACTIVATE to an active bank

Compatibility The DDR Post Process Compliance tool works for most DDR, DDR2, DDR3, DDR4,

LPDDR, LPDDR2, and LPDDR3 systems.
The tool is not able to fully model systems which use the following optional DDR

features:

• Partial Array Self-Refresh (PASR)

• Auto Self-Refresh (ASR)

• On-the-fly Burst Length switching

About the

software

The DDR Post Process Compliance tool is part of the Keysight B4622B Protocol
Compliance and Analysis Toolset package.

The application uses the same software framework which is used by Keysight Infiniium
oscilloscopes.

12 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

2
What's New

With this release, the tool supports DDR, DDR2, DDR3, DDR4, LPDDR, LPDDR2, and
LPDDR3. Several new tests have been added for DDR3/4 and LPDDR2/3.

The DDR4 and LPDDR3 support is available only with the upgrade license - B4622B of
the tool.

13

2 What's New

14 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

3
Starting the DDR Post Process
Compliance Tool

1 From the logic analysis system's main menu, choose Tools>External

Applications>DDR Post Process Compliance Tool.

The DDR Post Process Compliance tool window appears.

15

3 Starting the DDR Post Process Compliance Tool

See Also • "To view/hide the toolbar" on page 17

Next • "Creating or Opening a Test Project" on page 53

16 DDR Post Process Compliance Tool User Guide

To view/hide the toolbar

• To toggle between a hidden and visible toolbar, choose View>Toolbar from the

menu.

Starting the DDR Post Process Compliance Tool 3

DDR Post Process Compliance Tool User Guide 17

3 Starting the DDR Post Process Compliance Tool

18 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

4
Configuring Tests

You must configure a set of limits before you can run any tests.
These limits describe the memory part you are using and certain characteristics of the

memory bus.
You can load, edit, and save limits from the Tools>Compliance limits menu.

See Also

• "To set the test limits" on page 20 (for information on how to calculate the limits)

• "To create/edit limit sets" on page 25 (for information on how to enter and save the limits)

• "To activate/refresh limit sets" on page 29 (for information on how to load a limit set which you
have saved)

19

4 Configuring Tests

To set the test limits

All timing violation tests are based on compliance limits that are specified by the user.
Specify these limits based on the specific DDR memory parts you are using. Limits will
vary depending on:

• Memory technology (DDR2, DDR3)

•Speed grade

•Clock speed

• Part density

• User selected options such as Additive Latency and burst length

Units Some times must be entered in seconds (s). If the data sheet expresses these limits in

terms of clock cycles, you will need to convert those limits to seconds.
Each logic analyzer sample has a timestamp. Results will be calculated by subtracting

the time stamp of the first event from the timestamp of the second event. Note that the
time stamps are only as good as the time stamp resolution of the logic analyzer card
being used (this resolution may be as coarse as 2ns; see the Specifications and
Characteristics in the logic analyzer's online help for details). The elapsed time includes
time during which the DDR clock is inactive.

Definitions of

the limits

Other times must be entered as a number of clock cycles (CK). Results will be calculated
by counting the number of logic analyzer samples between the two events.

Additive latency (AL) is normally expressed as a number of clocks (CK). For some
calculations, you will need to convert AL to seconds (s) by dividing by the clock rate.

Burst length (BL) is simply an integer (4 or 8).
You will need to look up some of the limits from the part data sheet. You will then

calculate values for the derived limits.
Keysight suggests using the formulas here to compute the derived limits. However, it is

entirely the responsibility of the user to choose limits that are appropriate for the
intended application.

Here are the limits you need to specify:

20 DDR Post Process Compliance Tool User Guide

Table 5 Limits used by the tests

Configuring Tests 4

Par

Description U
ame
ter

Suggested Definition Reference
n
i
t

tRA

Row Active time ACTIVE

S

to PRECHARGE

ma

x

tRA

Row Active time ACTIVE

S

to PRECHARGE

min

tDARWMin ACT to external

s Part depend ent (9 * tREFI) Data Sheet

s Part dependent Data Sheet

s tRCD-AL DDR2 (see

READ/WRITE

tRP Row Precharge time min

s Part dependent Data Sheet

PRECHARGE to any
other command (same
bank)

tDRPMin Read to Precharge CKDDR2: AL + BL/2 + max

(tRTP, 2CK) -2CK

DDR3: AL + tRTP

tDRWMin Read to Write CKDDR2: BL/2 + 2CK

DDR3: BL4: RL + CCD/2 +

2CK – WL

DDR3: BL8: RL + CCD +

2CK - WL

(tREFI). See DDR3
(see

page 25) page

147.

page 24) 3.5 /

DDR3 (see

page 25) 12.3

DDR2 (see

page 24) 3.7.1 /

DDR3 (see

page 25) 4.13.3

DDR2 (see

page 24) figure 35 /

DDR3 (see

page 25) figure 35,

36

tRFCREFRESH command time.

s Part dependent Data Sheet

min time REFRESH to
REFRESH or ACTIVATE

tDWPMin Write to Precharge CKWL + BL/2 + tWR DDR2 (see

page 24) 3.7.2 /

DDR3 (see

page 25) Figure 49,

50

tDWRMin Write to Read CKDDR2: CL -1 + BL/2 + tWTR

DDR3: WL + BL/2 + tWTR

DDR2 (see

page 24) Figure 41

/ DDR3 (see

page 25) Figure 53,

56

tCCDCAS to CAS delay min

CKPart dependent Data Sheet

time between any read or
write command

DDR Post Process Compliance Tool User Guide 21

4 Configuring Tests

Table 5 Limits used by the tests (continued)

Values used to

calculate the

limits

Par

Description U
ame
ter

tRRDMin time between two

ACTIVATE commans

(different banks)
tFAWMin time for four

ACTIVATE commands

(different banks)

Suggested Definition Reference
n
i
t

s Part dependent Data Sheet

s Part dependent Data Sheet

To calculate the limits, you will need to look up or calculate the following values:

Table 6 Values used to calculate the limits

Par

Description U
ame
ter

AL Additive Latency C

Suggested Definition Reference
n
i
t

User selection System Design
K
,
s

BL Burst Length User selection System Design
CL CAS (Read) Latency CKPart dependent Data Sheet

CWLCAS Write Latency CKPart dependent Data Sheet

RL Read Latency CKAL + CL DDR3 (see

page 25) 3.4.3.4

WL Write latency CKAL + CWL DDR3 (see

page 25) 3.4.3.4

tRCDRAS to CAS Delay (ACT

to internal R/W)

tREFIRefresh Interval; average

time between Refresh
commands

tRTPInternal Read to Precharge s Part dependent (max 4CK or

s Part dependent Data Sheet

s Part dependent Data Sheet

Data Sheet

7.5ns)

22 DDR Post Process Compliance Tool User Guide

Table 6 Values used to calculate the limits (continued)

Configuring Tests 4

Naming

conventions

Customizing the

limits

Par

Description U
ame
ter

tWR Internal Write Recovery s Part dependent Data Sheet
tWTRInternal Write to internal

Read

Suggested Definition Reference
n
i
t

s Part dependent (max 4CK or

7.5ns)

Data Sheet

External Read/Write + AL = Internal Read/Write
Limits which are normally expressed as maximum or minimum times have names

beginning with 't'.
The names of derived timing limits begin with 'tD'. Derived limits are not usually

specified directly in the part data sheet. In general, you will compute these from the
standard timing parameters.

Limits which are normally expressed as a number of clock cycles have no prefix. In
some cases, you may need to convert these to seconds for use by the tool.

The definitions are suggestions based on the DDR2/3 standards. There is no requirement
that the user must set the limits to those specified in the data sheet or in the JEDEC
standard. You can set the limits however you like, depending on the goals of your
testing.

Example limits An example limit set is supplied with the validation tool. The example is based on a

DDR800 part with 6-6-6 timing.
To load and view the example limits, select Tools>Compliance Limits>Create/Edit

Limit Set, then select Load Limit Set..., select Official limit sets, then select DDR
Example.

Example part:

• Data sheet: MICRON DDR3 MT41J256-32 Me x 4 x 8 Banks PDF: 09005aef82f1e6e2 Rev. M 9/08
EN

• Speed Grade 25 (6-6-6)

• Clock 400 MHz (2.5ns)

• Data Rate 800 MT/s

• Temperature 0-85C

DDR Post Process Compliance Tool User Guide 23

4 Configuring Tests

Table 7 Standard parameters used for example limit set

Parameter Value Reference

tREFI 7.8 us (low temp) Data Sheet, page 71
tRAS

max

tRAS

min

tRP 15ns D ata Sheet, page 30
tCCD 4CK (10ns) Data Sheet, page 70
tRRD 10ns Data Sheet, page 30
tFAW 50ns Data Sheet, page 30
tRFC 110ns Data Sheet, page 30
tRCD 15ns Data Sheet, page 30
tRTP 10ns Data Sheet, page 70
tWR 15ns Data Sheet, page 70
tWTR 10ns Data Sheet, page 70
AL 0ns (0CK) User selected (MR1, 0 means no additive latency)
BL 10ns (8 bursts) User selected (MR0)
CL 6CK (15ns) Data Sheet, page 30 (MR0)
CWL 5CK (12.5ns) Data Sheet, page 116 (MR2)

70.2us Data Sheet (tREFI), page 63

37.5ns Data Sheet, page 30

Table 8 Derived values used for example limit set

Parameter Value

RL 6CK (15ns)
WL 5CK (12.5ns)
tDARW 15ns
tDRP 10ns
tDRW 17.5ns
tDWP 32.5ns
tDWR 27.5ns

References • DDR2 JEDEC Standard 79-2E, April 2008

• DDR3 JEDEC Standard 79-3C, November 2008

24 DDR Post Process Compliance Tool User Guide

To create/edit limit sets

You can create new limit sets by modifying existing limit sets and saving them to new
files.

1 From the DDR Post Process Compliance tool's menu, choose Tools>Compliance

limits>Create/Edit limit set....

2 In the Create/Edit User-Defined Limit Set dialog, click Load Limit Set... to pre-load

the dialog with the supplied example limit set (or a user-defined limit set).

Configuring Tests 4

3 Give the new limit set a unique name. If all of the tests come from the same

reference, you can enter a base description (for example, document name) in the
Shared Reference field and then add test-specific references (for example, page
number) down below.

4 Select a limit to modify.

DDR Post Process Compliance Tool User Guide 25

4 Configuring Tests

When Loading

5 Modify the limit as desired. See also:

• "To split a combined limit" on page 26

• "To combine limits" on page 27

6 Repeat the last two steps until all limits requiring change are modified.
7 Click Save As... to save your custom limit set to a file. Enter the file name in the Save

File As dialog.

• Now, you can activate your newly-created limit set for use in the next run. See "To

activate/refresh limit sets" on page 29.

When you load a project, the application will attempt to restore the limit set that was in

Projects

See Also

use at the time the project was saved.

• "To set the test limits" on page 20 (for information on how to calculate the limits)

To split a combined limit

If a limit covers more than one test ID, you can split it into two limits.

• In the Create/Edit User-Defined Limit Set dialog (see "To create/edit limit sets" on page 25),

select the limit that covers multiple tests, and click Split....

26 DDR Post Process Compliance Tool User Guide

Configuring Tests 4

See Also

In this case, we are splitting a 2-test limit into two single-test limits.

8 In the Split Test Limit dialog, assign one of the tests to the new limit by selecting it

and clicking the --> button.

9 Click Finish.

• "To combine limits" on page 27

To combine limits

• In the Create/Edit User-Defined Limit Set dialog (see "To create/edit limit sets" on page 25),

select the limits you want to combine, and click Combine....

DDR Post Process Compliance Tool User Guide 27

4 Configuring Tests

10 In the Combine Multiple Test Limits dialog, select which limit to copy values from

and provide summary names and descriptions.

11 Click Finish.

See Also

• "To split a combined limit" on page 26

28 DDR Post Process Compliance Tool User Guide

To activate/refresh limit sets

NOTE

To load a previously defined limit set:

1 From the DDR Post Process Compliance tool's menu, choose Tools>Compliance

limits>Activate/Refresh limit set....

2 In the Activate/Refresh Compliance Limit Set dialog, select one of the official limit

sets or a user-defined limit set.

3 Click Activate/Refresh.

Configuring Tests 4

See Also

If you have existing test results when you activate a different limit set, the application
examines your results to see if any of them would experience a limit change when the
different limit set is loaded. If any results would be affected in this way, the application
tells you which ones they are and warns that they must be deleted.

• "To combine limits" on page 27

DDR Post Process Compliance Tool User Guide 29

4 Configuring Tests

30 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

5
Setting Up the Test Environment

1 Click the Set Up tab.
2 If more than one DDR bus decoder exists in the logic analysis system setup, select

which one to use for the compliance tests from the Select a DDR module to analyze
listbox.

If only one decoder exists, it will be selected automatically.
If needed, click Refresh to update the list. You may need to refresh the list and select

a new decoder if you load a new logic analyzer configuration file, or whenever you
add or remove a decoder .

3 Select the DDR memory type. The DDR Post Process Compliance tool can work with

any of the following memory bus standards (depending on which license of the
B4622 software is installed).

With B4622A license -

- DDR1/2/3

- LPDDR1/2
With B4622B upgrade license -

- DDR1/2/3/4

- LPDDR1/2/3
License Error - If you have only the B4622A license and you try to select DDR4 or

LPDDR3 as the DDR memory type in the DDR Post Process Compliance tool, the
following error messages are displayed.

31

5 Setting Up the Test Environment

To get DDR4 and LPDDR3 support, you must purchase the B4622B license.

4 From the Data Options section, select whether or not you want the tool to

automatically acquire new data when compliance tests are run. Whether you plan to
run tests once or multiple times, the selection of this checkbox instructs the tool to
first run the logic analyzer for data acquisition. When the data acquisition run is
complete, the tool starts post processing the newly acquired data by running the
selected tests. If you plan to run the tests multiple times or forever, then you must
select this checkbox to ensure that the tool runs the logic analyzer repetitively for
data acquisition and then acquires the new data automatically for post processing.

Deselecting this checkbox instructs the tool to use the already acquired data for post
processing. The tool does not run the logic analyzer for data acquisition in this case.
Therefore, when you deselect this checkbox, you can run the tests only once on
existing data.

5 (optional) Describe the test for future reference. The specified User Comments will

appear on the HTML report which is generated for the test.

32 DDR Post Process Compliance Tool User Guide

Setting Up the Test Environment 5

Next • "Selecting Tests" on page 35

DDR Post Process Compliance Tool User Guide 33

5 Setting Up the Test Environment

34 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

6
Selecting Tests

1 Click the Select Tests tab and then select the tests you want to run.

The tests displayed in this tab vary depending on the memory bus type that you
selected in the Set Up tab and the type of software license installed for the B4622
toolset. (The DDR Post Process Compliance tool is a part of this toolset.)

35

6 Selecting Tests

With B4622A license

There are two license versions available for B4622 - B4622A and B4622B. With
B4622B, you get additional tests for each memory bus type as well as tests for DDR4
and LPDDR3 (which are not available with B4622A license). The following table
lists the tests available for memory bus types with each of these two licenses.

With B4622B license

DDR1, 2, 3 tests LPDDR, LPDDR2 tests DDR4

tests

Not

available

DDR1, 2 tests DDR3 tests DDR4 tests

LPDDR3

tests

Not
available

36 DDR Post Process Compliance Tool User Guide

With B4622B license

LPDDR tests LPDDR2 tests LPDDR3 tests

Selecting Tests 6

When Tests

Have Already

Been Run

Some things to consider while selecting tests:

• Some tests might not make sense for your system. Do not select those tests.

• Checking a parent node/group will check all available sub-groups/tests.

• Unchecking a parent node/group will uncheck all sub-groups/tests.

• A parent node is checked if all subgroups are checked.

• A parent node is unchecked if ANY subgroup is unchecked.

DDR Post Process Compliance Tool User Guide 37

6 Selecting Tests

The marks have the following meanings:

The test passed.

The test failed.

The test has not been run, or no tests in the group have been run.

The test is currently running.

Some tests in the group have run and passed.

Some tests in the group have run and failed.

Some tests in the group have passed and some have failed; not all of the tests have
been run.

Some tests in the group have passed and some have failed; all of the tests have run.

See Also

• "To set the test limits" on page 20 (for information on how to calculate the limits)

• "About the Tool" on page 11 (for an overview of the tests performed)

All tests in the group have run and passed.

All tests in the group have run and failed.

Next • "Configuring Tests" on page 19

38 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

7
Running Tests

You can use the Run Tests tab to specify how the tests should be run and then run the
tests as per these settings.

You can run the tests once or repetitively.

39

7 Running Tests

To run the selected tests

1 Click the Run Tests tab.
2 Configure the settings for running the tests.

a From the Store Mode section, select which trial results from the test run(s) you

want to store. You can store results for a maximum of 25 trials.

b From the Run Until section, select the number of times you want to run the tests.

Following options are available:

• Once - The tests are run once.

• N Times- The tests are run repetitively for the number of times specified in the

Number of Runs field.

• Forever- The tests are run repetitively until you press the Stop button.

If you select N Times or Forever, make sure you select the Automatically
acquire new logic analyzer data when running tests checkbox in the Set up tab.

c On selecting the N Times option, the Pause checkbox is displayed. Select this

checkbox to instruct the tool to pause the test run after the completion of each run
in the repetitive run.

d Select the Send email checkbox to instruct the tool to send a notification email

with the information about the test run when the test run completes or pauses. You
can specify the email address to which email should be sent by clicking the
Configure button displayed when this checkbox is selected.

e Select the On Event checkbox to instruct the tool to perform a specified action

when the specified event is detected in the test run. On selecting this checkbox, a
listbox is displayed with this checkbox. From this listbox, you can select either
Pause or Stop to pause or stop the test run when the selected event is detected
during a test run.

f When you select Event in the St ore Mo de section or select the On Event

checkbox, the Event listbox is displayed to allow you to select the event. When
the selected event occurs in the test run, the specified action is performed if the On
Event checkbox is selected or the details for the event are stored if the Store Mode
is set to Event. You can select from the following events:

• Pass - Perform the event action or store the event details when a test passes.

• Fail - Perform the event action or store the event details when a test fails.

• Margin < N - Perform the event action or store the event details when a test

result margin is less than the specified minimum required margin percentage.

At times, you may receive warning messages when the selected event does not
logically matches with the selected Store Mode. For instance, if the Store Mode is
Best, then you can only use Pass as the event. Similarly, if the store mode is
Worst, you cannot use Pass as the event. The tool automatically corrects the event
selection in such cases.

While you select the test configurations, the tool automatically keeps documenting
the test configurations for your reference in the open listbox in this tab.

40 DDR Post Process Compliance Tool User Guide

Running Tests 7

3 Run the tests. There are several ways to run the selected tests:

• Click in the toolbar. to run all the selected tests.

• Select a branch in the Select Tests tab and then click in the toolbar to run only

the tests of the selected branch.

• Click the big Run button in the Run Tests tab.

4 If there are existing test results, you are asked if you would like to keep them or

re-test (delete) them.
If you would like to keep the existing test results to compare against new results,

select Append New "Trial" Results.
Select Replace the Existing Results if you would like to delete the existing test

results.

5 While the tests are running, status dialogs appear to inform you about the test

progress.

6 When the tests are complete, click OK.

See Also • "To set the display preferences" on page 42

Next • "Viewing Results" on page 43

DDR Post Process Compliance Tool User Guide 41

7 Running Tests

NOTE

To set the display preferences

Information, warning, and error conditions can occur while running tests. The display
preferences let you choose whether message dialogs are shown. And, there are other
display preferences that affect what happens as tests are run.

1 From the DDR Post Process Compliance tool's menu, choose View>Preferences....

2 In the Preferences dialog, select the Display tab.

3 In the Display tab, you can choose to show the following types of message dialogs:

• Information dialogs.

• Warning dialogs.

• Error dialogs.

Messages that require you to make a choice, such as "OK/Cancel" and "Yes/No" are
always enabled.

4 Also, you can choose to:

• Invert scope display — (Not used) Use a white background when the application

captures the screen shots.

• Keep application on top — Always keep the application's main dialog on the top

of the logic analyzer application. Note that the mid-run dialogs are always
displayed on the top.

• Log events — Use this option only when directed to by Keysight Support (Note

that this option degrades the runtime performance).

• Show tooltips — By enabling this option, the tooltips appear as you move the

pointer over various controls in the application.

5 Click Apply to save the changes and click OK to close the Preferences dialog.

42 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool

TIP

User Guide

8
Viewing Results

1 Click in the toolbar, or click the Results tab.

The Results tab contains three resizable panes for test results information. If you
select one of the tests in the top pane, details and reference images (if any) are shown
in the lower panes.

A quick way to reset all configuration options and delete all test results is to create
a new project (see

For each individual test that you selected to run, the tool reports the total number of
failures that occurred for that specific test. It can show up to a maximum of 250 failures
in the Details screen for an individual test.

Each limit is measured as the time between two states. Each logic analyzer state has a
number and a timestamp. In case of a failure, the numbers of the two states will be
reported. Note that the time stamps are only as good as the time stamp resolution of the
logic analyzer card being used (this resolution may be as coarse as 2ns; see the
Specifications and Characteristics in the logic analyzer's online help for details).

page 53). The new project will have default configuration options.

43

8 Viewing Results

If a test case is not encountered in the logic analyzer trace:

• In the details for the test, the number of tests will be 0.

• For limit tests, the "Actual Value" column will display "N/A."

• For pass/fail tests, the "Actual Value" column will display "Pass."

See Also

Next • "Viewing/Exporting/Printing the Report" on page 47

• "To change margin thresholds" on page 45

44 DDR Post Process Compliance Tool User Guide

To change margin thresholds

NOTE

1 From the DDR Post Process Compliance tool's menu, choose View>Preferences....

Or, when viewing the Results tab, click in the toolbar .

2 In the Preferences dialog, select the Report tab.

Viewing Results 8

3 In the Margin Reporting area, you can:

• Enable or disable margin highlighting.

• You can change the percent of margin at which to give warnings or critical

failures.

4 Click OK to close the Preferences dialog.

The DDR Post Process Compliance tool runs the tests one time, so the Trial display
options do not apply.

DDR Post Process Compliance Tool User Guide 45

8 Viewing Results

46 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

9
Viewing/Exporting/Printing the
Report

• To view the HTML test report, click the Html Report tab.

See Also

Next • "Saving Test Projects" on page 51

• "Viewing/Exporting/Printing the Report" on page 47

• "To export the report" on page 48

• "To print the report" on page 50

47

9 Viewing/Exporting/Printing the Report

To export the report

1 From the DDR Post Process Compliance tool's menu, choose File>Export Results>

from the menu.
There are two options for exporting the HTML test report: CSV or HTML.

To export results

(comma-separat

ed values)

Select the CSV option to export the results as a comma-separated list of values.

in CSV

format

The data format is shown in the first line of the exported *.csv file.

Test ID, Test Name, Measured Item, Trial 1 Value
100,"ACTIVATE to PRECHARGE/Auto-PRECHARGE must be < tRASmax",Number of t
ests ,"9"
100,"ACTIVATE to PRECHARGE/Auto-PRECHARGE must be < tRASmax",Number of f
ailures ,"0"
100,"ACTIVATE to PRECHARGE/Auto-PRECHARGE must be < tRASmax",Actual Valu
e,"4.92E-05"
100,"ACTIVATE to PRECHARGE/Auto-PRECHARGE must be < tRASmax",Margin,"29.
9"

To export the

report in HTML

format

48 DDR Post Process Compliance Tool User Guide

Viewing/Exporting/Printing the Report 9

NOTE

There are two options for exporting HTML format test reports:

• Single-File — To save a single-file report, use the "save as" type "Web Archive,

single file (.mht)".

Single-file reports will not contain hyperlinks in the summary table (due to a .mht format
limitation). If you want these hyperlinks, use the multi-file format.

• Multi-File — If your report is large and you would like to use links within the report,
select the HTML>Multi-File option. Selecting the multi-file option exports the
results as a set of separate image and HTML files. It creates a folder with the
specified name that may be copied to any computer.

To view the exported report, open the HTML file stored in the folder.

DDR Post Process Compliance Tool User Guide 49

9 Viewing/Exporting/Printing the Report

To print the report

• To preview the HTML test report printout, click or choose File>Print Preview...

from the menu.

• To print the HTML test report, click or choose File>Print... from the menu.

50 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

10
Saving Test Projects

To save test settings and results to the current project directory:

1 Choose File>Save Project from the menu.

To save test settings and results to a new project directory:

1 Choose File>Save Project As... from the menu.
2 In the Save Project As... dialog, enter the device name and location.

Project files will be saved in a directory whose name is the device name.

3 Click OK.

See Also

• "To set AutoRecovery preferences" on page 52

51

10 Saving Test Projects

To set AutoRecovery preferences

1 From the DDR Post Process Compliance tool's menu, choose View>Preferences....

2 In the Preferences dialog, select the Save/Load tab.

3 In the AutoRecovery area, you can choose:

• To auto-save results after each trial or permutation even if the entire multi-trial is

not completed. This option enables full recovery.

• To auto-save results only upon the completion of the entire multi-trial.

4 Click Apply to save the changes and click OK to close the Preferences dialog.

52 DDR Post Process Compliance Tool User Guide

DDR Post Process Compliance Tool
User Guide

11
Creating or Opening a Test Project

To create a new test project:

1 Choose File>New Project... from the menu.

A new, empty project, with all the default settings is created.

To open an existing test project:

1 Choose File>Open Project... from the menu.
2 In the Open dialog, browse to a test project directory and select the desired ".proj"

file.

3 Click Open.

See Also

Next • "Setting Up the Test Environment" on page 31

• "To set load preferences" on page 54

53

11 Creating or Opening a Test Project

To set load preferences

1 From the DDR Post Process Compliance tool's menu, choose View>Preferences....

2 In the Preferences dialog, select the Save/Load tab.

3 In the Save/Load tab, you can choose to restore saved test selections when loading a

project.

4 Click Apply to save the changes and click OK to close the Preferences dialog.

54 DDR Post Process Compliance Tool User Guide

Index

A

about, 11
activate limit set, 29
ASR, 12
AutoRecovery preferences, 52

C

clock speed, 31
combine limits, 27
comma-separated value (CSV) format,

export results, 48
configuring tests, 19
create limit set, 25
creating test project, 53
critical at percent of margin, 45
CSV (comma-separated value) format,

export results, 48
CTC commands, 31

D

display preferences, 42

E

edit limit set, 25
enable margin reporting, 45
error dialogs, 42
event log, 42
exporting the report, 48

H

HTML format, export results, 48
HTML test report,

viewing/exporting/printing, 47

I

information dialogs, 42
invert scope display, 42

K

keep application on top, 42

L

limit set, activate/refresh, 29

limit set, create/edit, 25
limit set, restore, 26
limit, split combined, 26
limitations, 11
limits, combine, 27
load preferences, 54
log events, 42

M

margin thresholds, changing, 45
multi-file HTML, export results, 49

O

on-the-fly burst length, 12
opening test project, 53

P

PASR, 12
preferences, display, 42
preferences, report, 45
preferences, save/load, 52, 54
preview print, 50
printing HTML test report, 50
project, creating or opening, 53
project, saving, 51

R

refresh limit set, 29
report (HTML),

viewing/exporting/printing, 47
report preferences, 45
report, exporting, 48
report, printing, 50
results, viewing test, 43
running tests, 39

S

save/load preferences, 52, 54
saving test project, 51
selecting tests, 35
self refresh, 12
set up, 31
show tooltips, 42
single-file HTML, export results, 49
split combined limit, 26
starting DDR post process compliance

tool, 15

T

test project, creating or opening, 53
test project, saving, 51
test report (HTML),

viewing/exporting/printing, 47
tests, configuring, 19
tests, running, 39
tests, selecting, 35
tests, viewing results, 43
toolbar, viewing/hiding, 17
tooltips, show, 42

U

unavailable tests, 35

V

viewing HTML test report, 47
viewing test results, 43

W

warn at percent of margin, 45
warning dialogs, 42
what's new, 13

DDR Post Process Compliance Tool User Guide 55

Index

56 DDR Post Process Compliance Tool User Guide