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Quantum Data, Inc. 2111 Big Timber Road Elgin, IL 60123 USA Phone (847) 888-0450 Fax (847) 888-2802 www.quantumdata.com quantum data Quantum Data, Inc.

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Presentation on theme: "Quantum Data, Inc. 2111 Big Timber Road Elgin, IL 60123 USA Phone (847) 888-0450 Fax (847) 888-2802 www.quantumdata.com quantum data Quantum Data, Inc."— Presentation transcript:

1 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Quantum Data, Inc. HDMI Test Tools September 2008

2 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Quantum Data HDMI Support CEA 861-D/VESA Format Libraries Creation of Complex Test images/test sequences HDCP Tests CEC Tests EDID Tests Analyzer Functions Functional Tests

3 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data 882E Test Instrument User-friendly front panel. Ethernet with built-in browser RS-232 serial connection Built-n functional and compliance tests

4 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Navigating the 882E The 882E product supports access to all test functions through the following: – Front Panel Interface Tools > Reports Tools > Analyzer Content > Image File – Built in web page, accessed by Internet Explorer or any other web browser

5 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Format Libraries CEA-861-D Format Libraries VESA Format Libraries Programmable Custom Formats

6 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Image Libraries C++ SDK for creating complex images and complex test sequences (Script Runner)..bmp files can be stored. Animated test images. Image Files & Function Tests Image support for up to 12 bbp/channel at 4:4:4 video sampling rate (HDMI 1.3b).

7 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Test Equipment 881E Video Test Generator – Use case is factory assembly line. 882E Video Test Generator – Use case is development laboratory/sinks. 882E Analyzer – Use case is development laboratory/sinks & sources. 882E Analyzer 881/882E Generator

8 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Definition: Functional Testing occurs after the build has been delivered to a testing environment. Functions are tested by feeding them input and examining the output for validity. An important attribute of functional testing is that there are external specifications to which the tester may compare testing results. In essence, the tester is validating that the program meets the business requirements. Thus, this testing represents one of the easiest assessments to conduct. - University of Minnesota, Dept. of Engineering Glossary, September 2007

9 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing The test goal of functional testing is to verify that a DUT with can support declared capabilities. A test of function is typically, but not exclusively, part of the product manufacturing process.

10 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Test Images Image Shift Format Library HDCP Test EDID Data Test Lip Sync and LipSyncB Test 8 Channel Audio Tests (LPCM, Dolby Digital, Dolby Digital +) DV Swing Test Read and Report Infoframes Pixel Repetition Test Active Format Descriptor Test Munsell Color Test Dynamic Deep Color 12 bbp Test Combined HDCP/CEC Test CEC Test CEC Ping Test Format Rx Test TMDS Analyzer High Level functional tester

11 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Static Test Images (Patterns) provide subjective quality assessment and basic functional test. Static Test Images Animated Test Images can provide subjective assessments of motion artifact in displays.

12 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing The Image Shift Utility allows any standard image from the built-in image library OR custom images (created with SDK or downloaded.bmp files) to be put into motion.Image Shift Speed is regulated by line, pixel and field. Direction is regulated with X/Y axis controls.

13 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Format Libraries generate standard timings based on accepted, industry standard specifications. Format Libraries – VESA 1.0, Revision 11 – CEA 861-D – STANAG Class A,B,C Custom formats can can be Custom formats used to simulate required timings for unique application displays.

14 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing HDCPProd image runs a functional test on HDCP authentication with Sink devices. Results are pass/fail. HDCPProd

15 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing EDID Data image provides a functional verification that EDID is properly programmed. EDID Data This is visible on the DUT (Sink) and can be used as a manufacturing test.

16 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Lipsync testing is a subjective test to determine relative synchronization of audio/video in a sink device. Lipsync – Time interval is sec/audio event for progressive formats. Maximum synchronization is sec/audio event when scaled. – Time interval is sec/audio event for interlaced formats. Maximum synchronization is sec/audio event when scaled.

17 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing LipSyncB Test image is a flashing full-white square 1/8th of major active axis LipSyncB Test Only appears in first field of interlaced formats Audio burst (2 to 3 cycles of sine positioned relative to center of flashing square plus or minus 500 ms

18 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Lipsync handling of source/repeater devices can be tested. Based on current operational specifications of HDMI 1.3b, sinks report audio and video latency in their EDID. An Rx can simulate a sink and send the same data to a source repeater and measure the delay to see if it corresponds to the EDID latency factors. Lipsync

19 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Audio tests provide functional testing of HDMI audio frequency and amplitude. Eight channels of LPCM (linear PCM) audio can be tested individual, in pairs and all at once, simulating function of 5.1 Audio. Audio tests

20 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing HDMI supports compressed audio. Dolby Digital and Dolby Digital+ are generated as sound clips and can verify that Sink or repeater devices are decoding these formats properly. Subject evaluation of sound quality is also possible.Dolby Digital

21 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing TMDS digital video swing is changed between 90 mVp-p to 1620 mVp-p. The DV_Swing test is used to evaluate a displays ability to adjust to changes in digital video amplitude and to look for degradation indicated by the image. DV_Swing

22 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Verification of HDMI Infoframe Data. Infoframes can be transmitted as well as received. Infoframes Data is parsed into human readable text Infoframe data can be changed by adjusting functions in both the DUT and tester to determine proper interaction (See Debug Testing). Tx Infoframe Rx Infoframe

23 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Special progressive scan gaming formats use pixel replication (PixelRep Image) to display different H res based on a fixed V res. The Pixel Replication Test will test each of ten modes, duplicating pixels form 0 to 10x. Performance of the display is subjectively judged looking for gaps in the drawing.pixel replication

24 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing The AFDTest (Active Format Descriptor) image will test monitor display function based on matching aspect ratio with allowed aperture (see examples).AFDTest

25 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Munsell color is universal color that applies to any visual surface. A color is fully specified by listing the three numbers for hue, value, and chroma. For instance, a fairly saturated purple of medium lightness would be 5P 5/10 with 5P meaning the color in the middle of the purple hue band, 5/ meaning medium lightness, and a chroma of 10 Munsell color

26 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing In colorimetry, the Munsell color system is a color space that specifies colors based on three color dimensions, hue, value and chroma. Several color order systems place colors into a three dimensional color solid of one form or another, but Munsell Color separates hue, value, and chroma into perceptually uniform and independent dimensions, and was the first to systematically illustrate the colors in three dimensional space. The Munsell system, and particularly the later renotations, is based on rigorous measurements of human subjects visual responses to color, putting it on a firm experimental scientific basis.Munsell color system

27 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Deep color testing is done with a combination of dynamic test images that will exercise a displays ability to resolve from 4 to 12 bpp depth. Deep color testing Ramp Dif Ramp12 Image

28 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Tests A combined HDCP and CEC Test Image have been created to speed up manufacturing process by adding two tests together. Both tests are run on the DUT (Sink) for the purposes of verifying CEC and HDCP function.

29 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing CEC Ping verifies that CEC lines are open between two devices CEC Production Tests gives Pass/Fail indication based on requesting and receiving Vendor ID and Physical Address from the DUT CEC Production Tests

30 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing Format Measurements can be done on the Rx port of the 882 Analyzer product Format Measurements Immediate reporting can be viewed on the LCD of the 882 as source device modes are tested. HTML reports with this data can also be generated. Not only verifying the format (mode) but can interprete color depth of deep color source devices.

31 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Functional Testing ViewPix Test – Reads and reports RGB values from source ViewPix Test Pix-Err Test – Compares subsequent frames of data for changes in Pixels Pix-Err Test Cable Test – Tests cables by connecting Tx to Rx and using Pseudo Random Noise image. Cable Test Timing Test – Measures format timing Timing Test LipSync Test – Tests sources ability to react to Sink latency as described in the EDID LipSync Test

32 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing Definition: Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or a piece of electronic hardware thus making it behave as expected. Debugging tends to be harder when various subsystems are tightly coupled, as changes in one may cause bugs to emerge in another. - Wikipedia Debug, August 18, 2008

33 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing The test goal of Debug testing is to exercise the product design to understand and correct implementation errors. A test of function is typically, but not exclusively, part of the product design process and may incorporate tests that would be used later as part of compliance or interoperability testing.

34 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing Command Line Control EDID Editor CEC ITE (Interactive Test Environment) SAM+ (Signal Analyzer Module)

35 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing Command Line interface can be established: Command Line interface – Using access through the homepage available on the web interface. – Using Hyperterm and connecting directly to the RS-232 serial I/O – As a Telenet session connecting to the ethernet port.

36 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing Command line interface provides lowest level control of a test device/function: – Example: CPTX:OESS This causes the test equipment to use long reads during authentication where the value corresponding to the following: – 1 = encryption enable pulse is positioned at the beginning of the vsync pulse. – 4 = encryption enable pulse is positioned at the middle of the vsync pulse. – 5 = encryption enable pulse is positioned at the end of the vsync pulse. – CPTX:OESS 1 = encryption enable is at the beginning of vsync.

37 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing – Example: HPPW This hot plug pulse width command is used to set the hot plug assertion pulse width in milliseconds. The range is 100 to 4000 ms: – HPPW 175 = sets the hot plug assertion pulse width to 175 ms.

38 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing EDID editing and applying specific EDID changes provides a way to study how changes will effect Sink, Sources and Repeaters EDID editing EDID editting can be: – Applied to the Rx of an analyzer to emulate a sink. – Re-applied to a Sink DUT to determine interactions.

39 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing EDID Editor allows for EDID emulation in testing source devices. EDID Editor Create or extract an EDID file and load it on one of two 882E inputs. Four block EDID are programmable. Block 0 Block 1 Block 2 Block 3

40 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing EDID functions can be incremented and reapplied. EDID functions Overall function and individual functions of products can be tested. Entries can be made in human readable terms which does not require hexadecimal code. Files are saved and stored in.xml with conversion to text possible.

41 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing CEC ITE provides tools for debugging CEC protocols. CEC ITE – Bit Timing – Bus Arbitration – Corrupted Bits – Test for correct message acknowledgement. Allows Op Codes to be sent on pull down menus and looks at send and receive response.

42 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing Analyzing formats generated by a source/repeater and being able to append measures allow comparision of known good format to one requiring some debugging. SAM+ (Signal Analyzer Module) receives HDMI video and breaks it down, compares it to our built- in library and can recalculate the report and express it in the language of HDMI Compliance Test Specification – simulating an ATC test. SAM+ (Signal Analyzer Module)

43 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing A primary consideration in debug testing is to stress a design to test limits. The ability to understand code/hardware interaction in a DUT is built into test procedures Results of debugging may be determined by the ultimate goal of meeting business case requirements all the way to Compliance testing

44 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Debug Testing NOTE: Because many functions of HDMI are destined for compliance testing, many of compliance tests may also be used for debugging purposes. – Example: CEC function may not even be possible until basic electrical function of the CEC bus is operable. – The CEC ComplianceCEC Compliance Test, Section 7 could be used to test viability of the bus.

45 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Definition: Conformance testing, also known as Compliance testing, is a methodology used in engineering to ensure that a product, process, computer program or system meets a defined set of standards. These standards are commonly defined by large, independent entities such as the Institute of Electrical and Electronic Engineers (IEEE), the World Wide Web Consortium (W3C) or the European Telecommunications Standards Institute (ETSI). - SeachSoftwareQuality, 15 February, 2007

46 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing The test goal of compliance testing is to verify that a DUT meets the technical requirements of a specific set of written standards. A test of compliance is typically to determine acceptance of minimum standards required for commercial acceptance of a product. Typically there are two levels of compliance testing: – Laboratory Testing – Self-Certification

47 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing HDMI Specifications: – HDMI Specification 1.1 – HDMI Specification 1.2 – HDMI Specification 1.2a – HDMI Specification 1.3 – HDMI Specification 1.3a HDMI Compliance Testing Specifications: – Compliance Test Specification 1.1 – Compliance Test Specification 1.2a – Compliance Test Specification 1.3a – Compliance Test Specification 1.3b – Compliance Test Specification 1.3b1 – Compliance Test Specification 1.3c

48 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing EDID Compliance Test CEC Compliance Test HDCP Compliance Test

49 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing EDID Compliance Test corresponds to the following Compliance Test Sections: EDID Compliance Test – Test ID 7.1 EDID Related Behavior (Source) – Test ID 8.1 EDID Readability (Sink) – Test ID 8.2 EDID VESA Structure (Sink) – Test ID 8.3 CEA Timing Extension Structure (Sink) – Test ID D Format Support Requirements (Sink) – Test ID 8.18 Format Support Requirements (Sink) – Test ID 8.19 Pixel Encoding Requirements (Sink) – Test ID 8.20 Video Format Timing (Sink)

50 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing EDID Compliance Test requires that a CDF (Capabilities Declaration Form) be completed to base-line the test. EDID Compliance Test Tests declare in a CDF both mandatory and optional features based on what the product supports.

51 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing The EDID Compliance test parses the EDID data into human readable text. The EDID blocks are shown for reference and the specific product data is provided for reporting purposes.EDID Compliance

52 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Sink Device EDID Compliance Reports are generated as an HTML file and include Product Information, CDF, EDID blocks and pass/fail test results.EDID Compliance Reports Sink Device EDID Compliance Test Results are broken down by: – Test ID – Test Step – Pass/Fail results by test step – Test Section Summary Pass/Fail

53 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Test ID 7.1 EDID Related Behavior: – EDID Emulators on an Rx port provide EDID for testing source behavior. – EDID Emulators can be programmed with up to four blocks of EDID data. EDID Emulators Block 0 Block 1 Block 2 Block 3

54 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Test CEC Compliance Test corresponds to the following Compliance Test Sections: CEC Compliance Test – Test ID 7-1,7-2 Electrical Tests – Test ID 8.1,8.2 Signaling and Bit Timing – Test ID 9.1 thru 9.7 Frame Communication – Test ID 10.1 Device Installation and Addressing – Test ID 11.1 Features – Test ID 12-1,12-2,12-3 Invalid Message Tests

55 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing CEC Compliance Test provides TPA (Test Point Adaptors) for Quiescent and Dynamic Electrical Testing. CEC Compliance Test TME (Test Management Environment) Software performs the test functions and reporting.

56 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing The CEC test requires device selection, identification of the product and inputting CDF (Compliance Declaration Form) data.CEC

57 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing The CEC TME is automated and takes the operator threw appropriate test IDs, based on the type of product and features declared.CEC TME Each test sections begins by providing interconnection diagrams and recommended test equipment. All tests call out CEC Test ID numbers for clear reference to the HDMI Compliance Test Specification.

58 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Each test section describes the test goal and provides instruction to the operator regarding performance of the test.

59 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing At the conclusion of each test section, results are reported. Summary pass/fail is reported as well as specific test sections are given pass/fail in detailed reporting.

60 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing CEC Compliance reports are delivered as the testing progresses. CEC Compliance Written tests can be requested. The files are HTML files which call out each Compliance Test Section. Sections that pass are given a Pass status. Fails are reported in detail at the step level.

61 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Test The HDCP Compliance Test corresponds to the following HDCP Compliance Test Sections 1.3:HDCP Compliance Test – Tests of a Source device 1A-01 through 1A-09 (downstream with Rx) 1B-01 through 1B-06 (downstream with Repeater) – Tests of a Sink device 2C-01 through 2C-04 (upstream with Tx) – Tests of a Repeater device 3A-01 through 3A-05 (downstream with Rx) 3B-01 through 3B-05 (downsteram with Repeater) 3C-I-01 through 3C-I-07 (upstream with Tx, between Tx and Rx) 3C-II-01 through 3C-II-09 (upstream with Tx, between Tx and Repeater)

62 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Product is NOW APPROVED by DCP. Additional changes in the test, addition of the EST and SRM disk have increased test coverage of the HDCP Compliance Test.HDCP Compliance Test Certification by DCP identifies the Quantum Data HDCP CT as identical to that being used in the Authorized Test Centers.

63 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Preparation for testing HDCP requires setting the PCP (Product Capability Parameter):HDCP – DUT Type Source, Sink, Repeater – Source Max KSV – Source Authentication Control 1 + – Source Out Only Repeater Yes/No – Sink 1.1 Features Supported Yes/No – Sink 1.1 Audio Supported Yes/No – Repeater 1.1 Features Supported Yes/No – Repeater Audio Support Yes/No – Repeater HPD Pulse Yes/No – Repeater Max KSV – Repeater Out OnlyRep Yes/No

64 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Enhanced HDCP Compliance Test – Includes EST (Encryption Status Tester) and SRM disk for testing for key revocation. Enhanced HDCP Compliance Test

65 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing Source Testing Configuration Sink Testing Configuration Repeater Testing Configuration

66 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Compliance Testing HDCP Compliance Test provides a Summary of of the test sections HDCP Compliance Test Test can be run in Batch Mode or with command line, individual tests can be run separately. All tests report results matched to the Test ID. Test results are reported with Pass, Fail and Warning

67 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Testing Definition: The ability of two or more systems to exchange information and to use the information that has been exchanged. - IEEE Standard Computer Dictionary, 1990

68 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Testing The test goal of interoperability testing is to understand product interactions and develop develop systems that operate together seamlessly. A test of interoperability is part of the design process, but may also be needed to analyze specific product system installations in the field.

69 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Testing Auxillary Channel Analyzer.

70 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Testing Interoperabilty Testing is accomplished when a product can emulate multilple system configurations and view the results. Many test functions already illustrated in this seminar can be used for studying interoperability: – EDID Reports – Format Reporting – Infoframe Data, – HDCP Tests – CEC Tests

71 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data ACA Testing Capability The Auxillary Channel Analyzer (ACA) passively sniffs on the I2C bus and CEC bus of the HMDI interconnection. This allows exposure of all Auxillary Channel trafficAuxillary Channel Analyzer (ACA) – Emulator to DUT – DUT to DUT

72 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Testing ACA provides analysis of DDC and CEC bus traffic. ACA HDCP, EDID, HPD and CEC events are logged and time stamped Detail (lower left) and data (lower right) can also be viewed.

73 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Every possibility you add to an interface increases your likelihood of failure - B.J. Fogg, Stanford University It is much, much harder to achieve simplicity in interaction design. -Tim Plowman, University of California, Berkeley

74 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperatbility The complexity of the HDMI transmitter and receiver interface provides fertile ground for interoperability problems. The simpler the end-user operation is, the more complex the internal structures and automation required. Since the days of HiFi, consumer electronic products are typically required to interoperate. The component mentality of consumers requires that interoperability be addressed at all levels.

75 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Interoperability Interoperability Test Environments: – Internal Testing (Debug, Interop, Function) – Compliance Testing (both Internal/external) – Plugtests (External) – Beta Testing (Adhoc Partner Testing) – Field Experience. Testing locations can be presented as: – In the Laboratory – In the Field (i.e. under common use)

76 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Joseph Lias, President of Simplay Labs LLC suggests that compliance testing speeds up identification of interoperability issues. Compliance Testing and Interoperability Testing are not the same: – Compliance Testing will examine a specific product against a specification. While many interoperability problems may be generally addressed in compliance testing, it is NOT the primary concern. – Interoperability testing will examine a product interaction with other related devices. Laboratory methods are not clearly defined

77 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Running compliance tests will resolve some high level interoperability problems – Example: CEC Test ID Test Objective is To ensure that the DUT responds correctly to a message when it is the current active source. The Required Test Method for Test ID is to Broadcast a Message. The Pass Criteria for Test ID is that The DUT responds to the message by broadcasting an message. With the correct equipment… you have tested one instant of potential interoperability.

78 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Additional test methods for Laboratory Interoperability Testing: – Standard: a collection of Golden devices that utilize the HDMI interface and might be combined in a system with the DUT. – A Test device that can simulate or emulate other devices that might be used in a system with the DUT. – A Test device that can view the data transactions that occur between different HDMI DUTs in a system.

79 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Emulation can be accomplished by using tools like: – EDID Editor – Format Editor – CEC ITE (Debugging Tool) – Command line set ups (through the Web Interface OR the Settings button on the front panel) Immediate interactions can be observed in DUT performance and some functions will generate an internal report that describes the interactions.

80 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Golden Test devices or a collection of available consumer electronic devices provide a valid method for understanding interoperability potential. Being able to emulate product is also a reasonable approach. Assuming that the emulation device has been put through rigorous testing and has the flexibility to truly simulate product states that may suggest interoperability. A device to observe and report auxillary channel traffic that promotes interoperability is needed.

81 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Use of the Auxillary Channel Analyzer (ACA) to study HDCP, HPD and EDID and CEC interactions in the LaboratoryAuxillary Channel Analyzer

82 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Laboratory Testing Using a passive sniffer allows to study interactions between different system DUTs and product emulation isnt required.passive sniffer

83 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing Adhoc Field Testing can provide ways to test interoperability with selected clients, locations or products Plugtests provide organized ways to combine multiple, unrelated manufactured products for systematic testing. Portable test devices that can be used in the consumers home or office to take a snap shot or log observed interoperability problems.

84 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing HT-180 Hand Shake Tester is a portable product that can test product in a real world application. HT-180 Hand Shake Tester The HT-180 can observe DDC bus transactions and display data as: – Reason codes on the LCD – Trace files captured with a notebook computer which are in the same format as the laboratory tool

85 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing Idenfifies 5V, Current and Hot Plug Issues Identifies EDID problems. Localizes HDCP handshake problems

86 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing EDID Failures – Checks if EDID port was not acknowledged – Checks if EDID port access was attempted by source – Verifies that EDID header and checksums are valid – Checks if EDID read was triggered by hot plug detection

87 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing Hot Plug Failures – Checks hot plug for < 100ms deassertion – Verifies that hot plug downstream assertion is passed to upstream – Checks if hot plug detection assertion upstream was not the result of downstream problem – Measures +5v signals for voltage and current draw on a source

88 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing HDCP Failures – Checks for invalid Aksv from source – Verifies that source write of An occurs prior to write of Aksv – Verifies that source read of Bcaps occurs prior to read of R0 – Verifies that source write of Aksv occurs prior to read of R0 – Checks for invalid Bksv from sink – Checks if Ri is read without second phase of authentication (in case of repeater) – Checks if HDCP reauthentication was triggered by hot plug detection – Checks if HDCP port is not acknowledged – Checks for excessive HDCP re-authentication attempts by source – Verifies that source attempted to access sink HDCP port – Checks if the READY bit is not set as a result of any of the following failure conditions: Repeater did not attempt to read Bksv downstream receiver Source did not begin reauthentication after five seconds Invalid Bksv

89 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing HT-180 can be inserted into a system and can passively observe DDC data traffic between an HDMI source, sink and repeater. HT-180

90 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing HT-180 supports Trace File formats collected through an ACA. This is the identical format to the laboratory ACA and captures the same type of data (although does not currently support CEC) HT-180

91 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing NO_ERROR0x00, EDID_HEADER_BAD0x01, EDID_CHECKSUM_BAD0x02, EDID_NOT_READ0x03, EDID_READ_INCOMPLETE0x04, EDID_READ_DURING_HPD_LOW0x05, EDID_READ_NACKED_HPD_HI0x06, LARGE_EDID_WITHOUT_EDDC0x07, EDID_NOT_READ_AFTER_HPD0x08, EDID_CROSSED_256_BYTES0x09, AKSV_BAD0x10, BKSV_BAD0x11, FACSIMILE_AKSV0x12, FACSIMILE_BKSV0x13, HDCP_NOT_ATTEMPTED0x14, HDCP_READ_DURING_HPD_LOW0x15, HDCP_NACKED_HPD_HI0x16, AKSV_WRITTEN_BEFORE_AN0x17,

92 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing AKSV_WRITTEN_WRONG_ORDER0x18, AKSV_SENT_MULT_TIMES0x19, HDCP_WENT_BEYOND_LENGTH0x1A, KSV_FIFO_READ_INCOMPLETE0x20, KSV_FIFO_READ_NOT_5_MULT0x21, KSV_FIFO_HAD_BAD_KSV0x22, KSV_FIFO_HAD_FACSIM_BKSV0x23, KSV_FIFO_WITHOUT_BSTATUS0x24, KSV_FIFO_READ_TOO_LONG0x25, KSV_FIFO_MISSING_BKSV0x26, KSV_FIFO_WITH_NO_DEVS0x27, KSV_FIFO_WITH_NO_READY0x28, R0_READ_WITHIN_100MS0x30, R0_READ_BEFORE_BCAPS0x31, R0_READ_WITHOUT_AKSV0x32, R0_READ_BEFORE_BKSV0x33, RI_MISMATCH_CAUSE_REAUTH0x34, R0_MISMATCH_CAUSE_REAUTH0x35,

93 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Field Testing SOURCE_USES_SHORT_READS0x36, BCAPS_RESERVED_BITS_SET0x40, BCAPS_NOT_READY_IN_TIME0x41, NO_REAUTH_AFTER_NO_READY0x42, DS_FAIL_WITH_NO_HPD0x43, BCAPS_NOT_POLLED0x44, BCAPS_READY_CAUSE_REAUTH0x45, BSTATUS_HAD_MAX_DEVS_EX0x50, BSTATUS_HAD_MAX_CASC_EX0x51, BSTATUS_RESERVED_SET0x52, BSTATUS_NOT_HDMI_MODE0x53, BSTATUS_HDMI_NO_BCAPS0x54, BSTATUS_DEVS_0_WITH_DEV0x55, BSTATUS_DEV_CNT_0_PROB0x56, BSTATUS_MAX_STAT_NO_PASS0x57, AINFO_1_1_SET_NO_BCAPS0x60, AINFO_RESERVED_SET0x61, AINFO_AFTER_AKSV0x62,

94 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data Current Reason Code Listings V_PRIME_WITH_NO_BSTATUS0x64, V_PRIME_WITH_NO_READY0x65, DOWNSTREAM_AUTH_NOT_UP0x67, DOWNSTREAM_REAUTH_NOT_UP0x68, REAUTH_CONSTANT0x69, SOURCE_STOPS_POLLING_RI0x6A, DDC_MISSING_STOPS0x6C, DDC_MISSING_STARTS0x6D, HPD_TOO_SHORT0x70, HPD_NEVER_GOES_HIGH0x71, HPD_NOT_PASSED_THROUGH0x72, HPD_NOT_HIGH_AFTER_5_SEC0x73, NO_REAUTH_AFTER_HPD0x74, AUTH_CONTINUES_AFTER_HPD0x75, VOLTAGE_TOO_LOW0x78, VOLTAGE_TOO_HIGH0x79, CURRENT_PULL_TOO_HIGH0x7A

95 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Testing To provide an understanding of the various levels of testing required for HDMI products and illustrate test methods. To explain the HDMI HDCP compliance test specification in terms of test goals, shoulds and shalls. To explain HDMI HDCP Interoperability testing useful in both laboratory and field environments.

96 Quantum Data, Inc Big Timber Road Elgin, IL USA Phone (847) Fax (847) quantum data HDMI Testing Thank you for your participation today! You may have questions, so please feel free to contact us: – Visit our website at – Call us at:


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