CN102866308A - SAS signal integrity analysis system and method - Google Patents
SAS signal integrity analysis system and method Download PDFInfo
- Publication number
- CN102866308A CN102866308A CN2011101893344A CN201110189334A CN102866308A CN 102866308 A CN102866308 A CN 102866308A CN 2011101893344 A CN2011101893344 A CN 2011101893344A CN 201110189334 A CN201110189334 A CN 201110189334A CN 102866308 A CN102866308 A CN 102866308A
- Authority
- CN
- China
- Prior art keywords
- signal
- sas
- measured
- grade
- sas signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Disclosed are a SAS signal integrity analysis system and a method. The system runs in a master computer, which is connected with an electronic product to be measured and an oscilloscope. The system comprises a parameter setting module, a signal measurement module and a signal analysis module. According to the method, a SAS signal can be acquired through a SAS interface of the electronic product; SAS signal integrity parameters are measured by the utilization of the oscilloscope; and a parameter corresponding to the SAS signal with optimum signal integrity is analyzed according to the SAS signal integrity parameters so as to find out a drive parameter which best fits the SAS interface.
Description
Technical field
The present invention relates to a kind of Signal Analysis System and method, particularly about a kind of SAS signal integrity analysis system and method.
Background technology
At present, the widely used memory interface of market enterprise is main with serial line interface (Serial Attached SCSI, SAS interface).The SATA-TX Signal integrity that produces in order to ensure the SATA hard disk need to arrange the parameter of the drive IC of SATA hard disk, and the SATA-TX signal that therefore needs different classes of SATA hard disk to produce measures and do corresponding setting and adjustment.Present stage all is to use measurement and the setting operation of manually doing repeatability, selects suitable measurement parameters according to test result again, and its test is loaded down with trivial details and consuming time, and the accuracy of test result is not high.
Summary of the invention
In view of above content, be necessary to provide a kind of SAS signal integrity analysis system and method, can go out to have the SAS signal parameter of Optimal Signals integrality by automatic analysis, thereby find out the driving parameter of the most suitable SAS interface.
Described SAS signal integrity analysis system, this system runs in the main control computer, and this main control computer and electronic product and oscillograph to be measured interconnect.This system comprises: parameter arranges module, is used for arranging one group of parameter to be measured of estimating the SAS signal integrity, and strength grade and the project number of times to be measured of setting the SAS signal; The measuring signal module, be used for regulating by the SAS interface of electronic product the strength grade of SAS signal, control SAS interface produces the SAS signal of respective strengths grade, utilize oscillograph to measure the parameter to be measured of this SAS signal integrity, obtain the actual measured value corresponding to each parameter to be measured of this SAS signal, and the current testing time of record testing SA S signal; Signal analyse block, be used for when testing time equals project number of times to be measured, relatively the actual measured value of SAS signal analyzes the SAS signal with Optimal Signals integrality, find out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, with this strength grade as the driving parameter of SAS interface and produce SAS signal analysis form.
Described SAS signal integrity analysis method comprises step: be used for arranging one group of parameter to be measured of estimating the SAS signal integrity; Set strength grade and the project number of times to be measured of SAS signal; Regulate the strength grade of SAS signal by the SAS interface of electronic product; Control SAS interface produces the SAS signal of respective strengths grade; Utilize oscillograph to measure the parameter to be measured of this SAS signal integrity, obtain the actual measured value corresponding to each parameter to be measured of this SAS signal, and record the current testing time of testing SA S signal; When testing time equaled project number of times to be measured, relatively the actual measured value of all SAS signals analyzed the SAS signal with Optimal Signals integrality; Find out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, with this strength grade as the driving parameter of SAS interface and produce SAS signal analysis form.
Compared to prior art, SAS signal integrity analysis system and method for the present invention obtains the SAS signal from the SAS interface of electronic product, utilize oscillograph to measure SAS signal integrity parameter, and analyze the corresponding parameter of SAS signal with Optimal Signals integrality, thereby find out the driving parameter of the most suitable SAS interface.
Description of drawings
Fig. 1 is the Organization Chart of SAS signal integrity analysis of the present invention system preferred embodiment.
Fig. 2 is the process flow diagram of SAS signal integrity analysis method of the present invention preferred embodiment.
The main element symbol description
Main control computer 1
SAS signal integrity analysis system 10
Parameter arranges module 101
Microprocessor 11
SAS interface 20
Oscillograph 3
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be the Organization Chart of SAS signal integrity analysis of the present invention system 10 preferred embodiments.In the present embodiment, described SAS signal integrity analysis system's 10 installations also run in the main control computer 1, this main control computer 1 is connected with electronic product 2 to be measured by COM port, and be connected with oscillograph 3 by general purpose interface bus (General-Purpose Interface Bus, GPIB).Oscillograph 3 is connected with electronic product 2 by gpib interface.Described main control computer 1 also comprises microprocessor (Microprocessor) 11 and storer 12.Motherboard or calculation element that described electronic product 2 is a kind of SAS of comprising interfaces 20, such as personal computer, server etc.
Described SAS signal integrity analysis system 10 is used for obtaining the SAS signal from SAS interface 20, utilize oscillograph 3 measurement signal integrity parameters and analyze the corresponding parameter of SAS signal with Optimal Signals integrality, thereby find out the driving parameter of the most suitable SAS interface.Described signal integrity parameter include but not limited to, and signal averaging amplitude, amount of jitter, cycle, frequency, rising time and lower liter are along time etc.
In the present embodiment, described SAS signal integrity analysis system 10 comprises that parameter arranges module 101, measuring signal module 102 and signal analyse block 103.The alleged module of the present invention refers to a kind of can be by the microprocessor 11 of main control computer 1 performed and can finish the series of computation machine program segment of fixed function, and it is stored in the storer 12 of main control computer 1.
Described parameter arranges module 101 and is used for arranging one group of parameter to be measured of estimating the SAS signal integrity, such as signal averaging amplitude, amount of jitter, cycle, frequency, rising time and under rise along the time etc.This parameter arranges strength grade and the project number of times to be measured (being designated as X) that module 101 also is used for setting the SAS signal.In the present embodiment, described signal strength scale comprises that signal amplitude (Swing) grade, signal rising edge/lower liter along (Rise/Fall) grade and signal strengthen (Emphasis) grade.If each signal strength scale is defined as respectively 1 to 5 grade, then project number of times to be measured is X=5 * 5 * 5=125 time.If each signal strength scale is defined as respectively 1 to 7 grade, project number of times to be measured then is X=7 * 7 * 7=343 time.
Described measuring signal module 102 is used for regulating by the SAS interface 20 of electronic product 2 strength grade of SAS signal, and control SAS interface 20 produces the SAS signal of respective strengths grade, and utilizes oscillograph 3 to measure the parameter to be measured of this SAS signal integrity.If need to strengthen the SAS signal intensity, then measuring signal module 102 strengthens the SAS signal intensity of SAS interface 20 outputs, for example is adjusted to the 2nd grade from the 1st grade; If need weaken the SAS signal intensity, then measuring signal module 102 reduces the SAS signal intensity of SAS interface 20 outputs, for example is adjusted to the 4th grade from the 5th grade.
Described measuring signal module 102 also is used for the file (for example Execl formatted file) that the actual measured value that each parameter to be measured of SAS signal is corresponding is recorded in set form, and this document is saved in the storer 12.This measuring signal module 102 also is used for the testing time (being designated as Y) of current testing SA S signal is added one, i.e. Y=Y+1, and judge whether testing time Y equals project number of times X to be measured.
Described signal analyse block 103 is used for when testing time Y equals project number of times X to be measured, relatively the actual measured value of each SAS signal analyzes the SAS signal with Optimal Signals integrality, for example, signal analyse block 103 SAS signal that the signal jitter amount is minimum is as the SAS signal of Optimal Signals integrality.This signal analyse block 103 also is used for finding out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, with it as the driving parameter of SAS interface 20 and produce the analytical statement of SAS signal and this analytical statement is kept in the storer 12.
As shown in Figure 2, be the process flow diagram of SAS signal integrity analysis method of the present invention preferred embodiment.In the present embodiment, method of the present invention can be obtained the SAS signal from the SAS interface 20 of electronic product 2, utilize oscillograph 3 measurement signal integrity parameters to analyze the SAS signal with Optimal Signals integrality, thereby find out the driving parameter of the most suitable SAS interface.
Step S21, the tester is connected main control computer 1 with electronic product 2 to be measured, and oscillograph 3 is connected with main control computer 1 and this electronic product 2.In the present embodiment, main control computer 1 is connected with electronic product 2 by COM port, and is connected with oscillograph 3 by gpib interface, and oscillograph 3 is connected with electronic product 2 by gpib interface.
Step S22, parameter arranges module 101 one group of parameter to be measured of estimating the SAS signal integrity is set, such as signal averaging amplitude, amount of jitter, cycle, frequency, rising time and under rise along the time etc.
Step S23, parameter arranges signal strength scale and the project number of times to be measured (being designated as X) that module 101 is set the SAS signal.Described signal strength scale comprises that signal amplitude (Swing) grade, signal rising edge/lower liter along (Rise/Fall) grade and signal strengthen (Emphasis) grade.In the present embodiment, if each signal strength scale is defined as respectively 1 to 5 grade, then project number of times to be measured is X=5 * 5 * 5=125 time.If each signal strength scale is defined as respectively 1 to 7 grade, project number of times to be measured then is X=7 * 7 * 7=343 time.
Step S24, measuring signal module 102 is regulated the strength grade of SAS signal by the SAS interface 20 of electronic product 2.In the present embodiment, if need to strengthen the SAS signal intensity, 102 SAS signal intensities that strengthen 20 outputs of SAS interface of measuring signal module for example are adjusted to the 2nd grade from the 1st grade; If need weaken the SAS signal intensity, 102 SAS signal intensities that reduce by 20 outputs of SAS interface of measuring signal module for example are adjusted to the 4th grade from the 5th grade.
Step S25, measuring signal module 102 control SAS interfaces 20 produce the SAS signal of respective strengths grade, and utilize oscillograph 3 to measure the parameter to be measured of this SAS signal integrity.
Step S26, measuring signal module 102 actual measured value that each parameter to be measured of SAS signal is corresponding is recorded in the file of set form, and this document is kept in the storer 12, synchronous signal measurement module 102 adds one with the testing time (being designated as Y) of current testing SA S signal, i.e. Y=Y+1.
Step S27, measuring signal module 102 judges whether testing time Y equals project number of times X to be measured.If testing time Y then turns to step S24 less than project number of times X to be measured; If testing time Y equals project number of times X to be measured, then execution in step S28.
Step S28, the signal analyse block 103 relatively actual measured value of each SAS signal analyzes the SAS signal with Optimal Signals integrality.For example, signal analyse block 103 SAS signal that the signal jitter amount is minimum is as the SAS signal of Optimal Signals integrality.
Step S29, signal analyse block 103 is found out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, this strength grade as the driving parameter of SAS interface 20 and produce SAS signal analysis form, and is kept at this analytical statement in the storer 12.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to above preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art should be appreciated that and can make amendment or the person is equal to the spirit and scope that replacement should not break away from technical solution of the present invention to technical scheme of the present invention.
Claims (10)
1. a SAS signal integrity analysis system runs in the main control computer, and this main control computer and electronic product and oscillograph to be measured interconnect, and it is characterized in that this system comprises:
Parameter arranges module, is used for arranging one group of parameter to be measured of estimating the SAS signal integrity, and strength grade and the project number of times to be measured of setting the SAS signal;
The measuring signal module, be used for regulating by the SAS interface of electronic product the strength grade of SAS signal, control SAS interface produces the SAS signal of respective strengths grade, utilize oscillograph to measure the parameter to be measured of this SAS signal integrity, obtain the actual measured value corresponding to each parameter to be measured of this SAS signal, and the current testing time of record testing SA S signal;
Signal analyse block, be used for when testing time equals project number of times to be measured, the actual measured value that compares the SAS signal, analyze the SAS signal with Optimal Signals integrality, find out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, with this strength grade as the driving parameter of SAS interface and produce SAS signal analysis form.
2. SAS signal integrity analysis as claimed in claim 1 system is characterized in that described main control computer is connected with electronic product by COM port, and described oscillograph is connected with main control computer and electronic product by gpib interface.
3. SAS signal integrity analysis as claimed in claim 1 system is characterized in that, the strength grade that described measuring signal module also is used for regulating during less than project number of times to be measured when testing time the SAS signal continues measurement SAS signal.
4. SAS signal integrity analysis as claimed in claim 1 system is characterized in that, described parameter to be measured comprise signal averaging amplitude, amount of jitter, cycle, frequency, rising time and under rise along the time.
5. SAS signal integrity analysis as claimed in claim 1 system is characterized in that, described signal strength scale comprise signal amplitude grade, signal rising edge under rise along grade and signal and strengthen grade.
6. a SAS signal integrity analysis method is applied in the main control computer, and this main control computer and electronic product and oscillograph to be measured interconnect, and it is characterized in that the method comprising the steps of:
One group of parameter to be measured of estimating the SAS signal integrity is set;
Set strength grade and the project number of times to be measured of SAS signal;
Regulate the strength grade of SAS signal by the SAS interface of electronic product;
Control SAS interface produces the SAS signal of respective strengths grade;
Utilize oscillograph to measure the parameter to be measured of this SAS signal integrity, obtain the actual measured value corresponding to each parameter to be measured of this SAS signal, and record the current testing time of testing SA S signal;
When testing time equaled project number of times to be measured, relatively the actual measured value of all SAS signals analyzed the SAS signal with Optimal Signals integrality;
Find out strength grade corresponding to optimum SAS signal according to the signal integrity analysis result, with this strength grade as the driving parameter of SAS interface and produce SAS signal analysis form.
7. SAS signal integrity analysis method as claimed in claim 6 is characterized in that described main control computer is connected with electronic product by COM port, and described oscillograph is connected with main control computer and electronic product by gpib interface.
8. SAS signal integrity analysis method as claimed in claim 6 is characterized in that the method also comprises:
When testing time during less than project number of times to be measured, return the step of regulating the SAS signal strength scale, in order to continue to measure the SAS signal.
9. SAS signal integrity analysis method as claimed in claim 6 is characterized in that, described parameter to be measured comprise signal averaging amplitude, amount of jitter, cycle, frequency, rising time and under rise along the time.
10. SAS signal integrity analysis method as claimed in claim 6 is characterized in that, described signal strength scale comprise signal amplitude grade, signal rising edge under rise along grade and signal and strengthen grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101893344A CN102866308A (en) | 2011-07-07 | 2011-07-07 | SAS signal integrity analysis system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101893344A CN102866308A (en) | 2011-07-07 | 2011-07-07 | SAS signal integrity analysis system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102866308A true CN102866308A (en) | 2013-01-09 |
Family
ID=47445297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101893344A Pending CN102866308A (en) | 2011-07-07 | 2011-07-07 | SAS signal integrity analysis system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102866308A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820182A (en) * | 2015-05-05 | 2015-08-05 | 浪潮电子信息产业股份有限公司 | Signal integrity test method of SAS 12G RX link |
| CN107064675A (en) * | 2017-03-31 | 2017-08-18 | 华为技术有限公司 | Receiving end signal acquisition methods and device |
| CN109342927A (en) * | 2018-11-01 | 2019-02-15 | 郑州云海信息技术有限公司 | A kind of measuring signal integrality method and apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200916794A (en) * | 2007-10-05 | 2009-04-16 | Hon Hai Prec Ind Co Ltd | System and method for automatically measuring waveforms |
| CN101645030A (en) * | 2009-09-04 | 2010-02-10 | 浪潮电子信息产业股份有限公司 | Method for measuring signal integrality based on SAS storage system |
| CN201413514Y (en) * | 2009-06-11 | 2010-02-24 | 浪潮电子信息产业股份有限公司 | Signal transmission integrity testing device |
| CN201435075Y (en) * | 2009-07-15 | 2010-03-31 | 浪潮电子信息产业股份有限公司 | Device for testing integrity of hard disc card signal based on SAS data bus |
| CN101739323A (en) * | 2008-11-07 | 2010-06-16 | 英业达股份有限公司 | Bridge SAS signal channel testing system and testing method thereof |
| CN101900787A (en) * | 2009-05-25 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Test system and method of circuit board |
-
2011
- 2011-07-07 CN CN2011101893344A patent/CN102866308A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200916794A (en) * | 2007-10-05 | 2009-04-16 | Hon Hai Prec Ind Co Ltd | System and method for automatically measuring waveforms |
| CN101739323A (en) * | 2008-11-07 | 2010-06-16 | 英业达股份有限公司 | Bridge SAS signal channel testing system and testing method thereof |
| CN101900787A (en) * | 2009-05-25 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Test system and method of circuit board |
| CN201413514Y (en) * | 2009-06-11 | 2010-02-24 | 浪潮电子信息产业股份有限公司 | Signal transmission integrity testing device |
| CN201435075Y (en) * | 2009-07-15 | 2010-03-31 | 浪潮电子信息产业股份有限公司 | Device for testing integrity of hard disc card signal based on SAS data bus |
| CN101645030A (en) * | 2009-09-04 | 2010-02-10 | 浪潮电子信息产业股份有限公司 | Method for measuring signal integrality based on SAS storage system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820182A (en) * | 2015-05-05 | 2015-08-05 | 浪潮电子信息产业股份有限公司 | Signal integrity test method of SAS 12G RX link |
| CN107064675A (en) * | 2017-03-31 | 2017-08-18 | 华为技术有限公司 | Receiving end signal acquisition methods and device |
| CN109342927A (en) * | 2018-11-01 | 2019-02-15 | 郑州云海信息技术有限公司 | A kind of measuring signal integrality method and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101865975B (en) | Main board testing system and method | |
| CN106368960B (en) | Centrifugal pump critical cavitation point detection device and detection method | |
| CN101173972B (en) | Method and apparatus for testing to determine minimum operating voltages in electronic devices | |
| CN102928772B (en) | Timing sequence test system and method for testing thereof | |
| CN103855045A (en) | Adjustment method for parameters of chips on wafer | |
| US20140375346A1 (en) | Test control device and method for testing signal integrities of electronic product | |
| CN101865946B (en) | Alternating current parameter testing system and method of programmable digital integrated circuit | |
| CN104459588A (en) | System and method for current sensor test | |
| CN101832813A (en) | Noise and Vibration-Measuring System based on virtual instrument technique | |
| CN102314532A (en) | IBIS (Input/Output Buffer Information Specification) model verification method and system | |
| CN102866308A (en) | SAS signal integrity analysis system and method | |
| CN108761105B (en) | Blood coagulation time determination method, electronic device, and storage medium | |
| CN103140767B (en) | High throughput semiconductor device testing | |
| CN109522263B (en) | I2C link monitoring system | |
| CN101393240A (en) | Electric network harmonic on-line supervisory circuit based on virtual instrument and working method thereof | |
| CN113868064A (en) | Method and device for automatically measuring PCIE eye diagram, computer equipment and storage medium | |
| CN116955045B (en) | Remote JTAG multiplexing test method and system | |
| TW201307866A (en) | System and method for measuring signal integrity of SAS signals from SAS ports | |
| CN113468006A (en) | Method and device for testing low power consumption time of solid state disk in and out, computer equipment and storage medium | |
| CN103197276A (en) | Reliability automatic detecting device of intelligent energy meter | |
| CN102024322B (en) | Data processing equipment and method for testing serial signals | |
| CN203178477U (en) | Automatic detection device for reliability of intelligent electric energy meter | |
| TWI445984B (en) | System and method for automatically analyzing signal integrity of sas-tx signals from disk interfaces | |
| CN102915267A (en) | SAS (serial attached SCSI) port testing system and method | |
| CN107765202A (en) | The on-line calibration system and method for AC measurment unit in integrated circuit test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |