USBtest 2000 User`s Manual
Contents
1. 6 Passed Starting USB Vcc voltage test Passed Starting USB shield continuity test Passed Starting USB low speed test Passed Starting low speed loopback test Passed USB test passed on port 0 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Page 7 Example 2 Suppressing the step by step error output TESTUSB allows the user to disable output of the test progress By specifying VO the status output is disabled until the test is finished or an error has been detected TESTUSB 0 V0 lt CR gt Sycard Technology USBtest port software v1 1 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 USB test passed on port 0 Example 3 Adding a USB Vcc load test This test is similar to example with the addition of a USB Vcc load test The C3 option specifies that a 600mA load be applied to the USB Vcc power pins The V2 option specifies that the software display actual measured voltages during Vcc and load tests TESTUSB 0 C3 V2 lt CR gt Sycard Technology USBtest port software v1 1 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 Starting USB register test Passed Starting USB speed and connect confirmation Passed Starting enumeration test firmware rev 0 47 Passed Starting high speed pulldown test Passed DP 2 49 DM 0 27 Starting loopback test 62. Passed Starting USB speed and connect confirmation Passed Starting enumeration test firmware rev 0 47 Passed Starting high speed pulldown test Passed Starting loopback test 4 Passed Starting USB Vcc voltage test Passed Starting USB Vcc loaded voltage test Passed Starting USB shield continuity test Passed Starting USB low speed test Passed Starting low speed loopback test Passed USB test passed on port 0 M200038 04 1994 2000 Sycard Technology Page 8 USBtest 2000 User s Manual Example 5 Embedding TESTUSB EXE in a Batch File TESTUSB EXE can be embedded in a batch file or called from a test executive The following illustrates a batch file that will continue to test port 0 until a failure is detected echo off Loop TESTUSB 0 V1 if errorlevel 1 goto exit goto loop exit echo on Example 6 Testing a system with multiple USB controllers TESTUSB EXE is designed to handle the case where there are multiple USB controllers in the system In its default configuration TESTUSB will use the PCI BIOS to search for the first USB controller The TESTUSB has two switches that will facilitate the handling of multiple controllers The bxxxx yyyy option forces the TESTUSB to search for a specific USB host controller xxxx specifies the PCI Vendor ID and yyyy specifies the PCI Device ID of the USB control
3. Port O Port 1 USB 1 USB 2 System Under Test Figure 2 0 2 Testing a two port USB host Figure 2 0 3 shows the connection between the USBtest and two single port USB systems The TESTUSB software is run on each individual system Because the USBtest ports are completely independent tests may be run concurrently on each system under test USBtest 2000 Port O Port 1 USB 1 USB 1 System Under System Under Test A Test B Figure 2 0 3 Testing two single port USB hosts Note The TESTUSB or TESTHUB software will not operate correctly with Windows 95 in a DOS window Run these programs under a safe mode DOS In Windows 95 select a safe mode DOS environment by pressing lt F8 gt during bouts Note The TESTUSB software is not designed to run with a hub device connected between the USBtest and the host root hub See chapter 3 for instructions on the TESTHUB software to test external hubs 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Page 5 2 1 USBtest Software Root Hubs The TESTUSB software is an MS DOS application distributed on a single floppy diskette Included on the diskette is the test application program and a READ ME file containing information not contained in this document The TESTUSB program has the following run time switches Syntax TESTUSB 0 1 bxxxx yyyy Ccx sx tx vx lx dx x f e x y m Switches 0 Test port 0 1 Test port 1 0 1 Test both ports b
4. Passed Starting USB Vcc voltage test Passed voltage 4 98 Starting USB Vcc loaded voltage test Passed 600 mA load 4 64V Starting USB shield continuity test Passed voltage 0 00 Starting USB low speed test Passed DP 0 27 DM 2 49 Starting low speed loopback test Passed USB test passed on port 0 Example 4 Specifying Vcc load parameters When the user specifies the Vcc load test with the Cx option the TESTUSB software will command the USBtest to switch in a resistive load and measure the loaded Vcc level If the DC voltage falls below a certain voltage the TESTUSB will return an error The TESTUSB software will default to a low Vcc limit of 4 15V If the user wishes to adjust this parameter they can with the Lx option In the example below the L3 9 option specifies that the lower Vcc limit is 3 9V In addition to the low Vcc limit the TESTUSB software also allows the user to specify the minimum loaded voltage drop This parameter allows the user to test the effectiveness of any current protection devices on the USB host In the following example the D0 5V specifies that with the 600mA load c3 option the Vcc level must fall a minimum of 0 5V from the unloaded Vcc voltage TESTUSB 0 C3 L3 9 D0 5 lt CR gt Sycard Technology USBtest port software v1 1 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 Starting USB register test
5. SYCARD TECHNOLOGY USBtest 2000 User s Manual M200038 04 July 2000 Preliminary Sycard Technology 1180 F Miraloma Way Sunnyvale CA 94085 408 749 0130 408 749 1323 fax http www sycard com USBtest 2000 User s Manual Page 1 1 0 Introduction The USBtest 2000 Universal Serial Bus USB port tester is designed to provide manufacturers of USB based hosts a quick method of testing and verifying the operation of the ports Sycard s USB port tester supports the USB 1 0 and 1 1 specification The USBtest 2000 is also capable of testing external hubs The USBtest 2000 is a self contained unit containing two independent USB devices Test software resides on both the host PC and USBtest unit Simple command line invocation allows tests to be embedded into batch test files Software included with the USBtest unit supports a wide variety of host controller implementation based on the Universal Host Controller UHCI architecture or the Open Host Controller Interface OHCI For other host controller architectures Sycard Technology can provide technical documentation describing how to create custom test programs for the USBtest 1 1 Compatibility USBtest has been designed to be compatible with a wide variety of USB host controllers Both Open Host Controller Interface OHCTI and Universal Host Controller Interface UHCI hosts are supported Host test software is compatible with most PC compatible machines The current softwa
6. are Notes The TESTUSB and TESTHUB software requires certain I O and memory address space resources to carry out its test The following table illustrates the memory and I O usages Program Mode T O Resources High Memory TESTUSB v1 1 UHCI 32 bytes at programmed address None or 140H if I O range not programmed User may override with ixxxx option TESTUSB v1 1 OHCI None 4K bytes ad D000 0 or may be user specified with jxxxx option TESTHUB v1 1 UHCI 32 bytes at programmed address None or 140H if I O range not programmed User may override with ixxxx option TESTHUB v1 1 OHCI None 4K bytes ad D000 0 or may be user specified with jxxxx option Table 4 0 1 TESTUSB and TESTHUB memory and I O usage 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Page13 5 0 Test Coverage USBtest is designed to provide high test coverage of the USB interface This document will detail the test procedure used to test the USB interface and provide information on the test coverage 5 1 Test Subsections The USBtest software is designed to run under a DOS environment in a PC architecture machine A simple command line invocation starts the USBtest software Several command line options configure the test for host options The following output illustrates the test flow for the USBtest software Sycard Technology USBtest port software v1 3 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 Starting USB r
7. ator Momentarily light and then go off Off Table 1 7 1 Status Indicator States The Power Indicator will light whenever power is applied 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Page 3 2 0 USBtest Operation Root Hubs The USBtest 2000 is a self contained dual port test peripheral The diagram in Figure 2 0 1 illustrates the major functional blocks of one of the test peripherals The Intel 80C930 USB microprocessor controls the operation of the system All communications with the test peripheral occur through the USB interface Test status is communicated through the USB interface and a single status LED System Vcc Reset Switch L 4 Status LED USB Microcontroller Figure 2 0 1 USBtest 2000 Block Diagram Note The USBtest 2000 may be reset to its power on default by cycling power or pressing the RESET switch located on the back panel The procedure for testing the desired USB port is straightforward Connect the USBtest to the USB port under test with one of the supplied USB A B cables Both ports on the USBtest are identical Figure 2 0 2 illustrates the connection between the USBtest and a dual port host system The TESTUSB test program will execute a variety of tests automatically and return PASS or FAIL status If any errors are detected they will be displayed on the screen M200038 04 1994 2000 Sycard Technology Page 4 USBtest 2000 User s Manual USBtest 2000
8. cy test measures the rate of SOF from the host controller This optional test is enabled by entering the f option on the command line The test software will default to a SOF tolerance of 800 parts per million ppm The user may change this value by specifying a ppm value after the f option 5 1 10 Low Speed Test After completing the high speed and voltage tests the TESTUSB software will command the USBtest into low speed mode The USBtest will momentarily disconnect and switch a pull up resistor onto the D line to signal a low speed device has been connected Once connected the TESTUSB software will perform an enumeration sequence on the device Any failure in the detection of the low speed device or failure in the enumeration process will cause an error 5 1 11 Low Speed Loopback Test 10 The loopback test will send and receive a fixed data pattern to the USBtest unit in low speed mode Any errors will be flagged 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Pagel5 6 0 Common Problems This section will describe some of the common problems encountered while trying to use the USB port tester on a known good USB host USB Host Controller Test Fails If this test fails no further testing is possible There are several possible problems 1 User did not specify the correct USB controller 2 USB host controller may not be fully UHCI or OHCI compatible 3 I O or memory range conflict Note The USBte
9. e programs may also be executed directly from the floppy disk Also included on the diskette is a READ ME file containing information on any recent changes in the software Software updates may be downloaded from the Sycard Technology WEB page at hitp www sycard com Technical support may be addressed to support sycard com 1 6 Setting Up the USBtest Hardware The USBtest 2000 is powered through a plug in wall mount transformer The transformer supplied with the USBtest unit has been approved for use in the following countries United States Canada Taiwan Contact Sycard Technology for transformers for other countries Once the USBtest unit is properly powered the power LED on the front panel will light On power up the status LED on each port will momentarily light and then go off If the LED stays on after initial power up or reset this indicates that the port has failed its self test and must be repaired Note Use only the supplied USBtest cables Longer cables or cables with smaller wire gauge may affect the voltage measurements 1 7 The USBtest Front Panel The USBtest 2000 front panel provides two USB ports labeled Port 0 and Port 1 Both ports are fully independent and can be connected in any order Both ports may be connected to a dual port host or the two ports can be shared between two single port hosts Each port has a Status indicator associated with it The status indicator will provide the following functions Status Indic
10. egister test Passed Starting USB speed and connect confirmation Passed Starting enumeration test firmware rev 0 47 Passed Starting high speed pulldown test Passed DP 2 49 DM 0 27 Starting loopback test 2 6 Passed Starting USB Vcc voltage test Passed voltage 5 24 Starting USB Vcc loaded voltage test Passed 600 mA load 4 89V Starting USB shield continuity test Passed voltage 0 21 Starting USB SOF frequency test Passed frequency 1000 42 Starting USB low speed test Passed DP 0 27 DM 2 49 Starting low speed loopback test Passed USB test passed on port 0 The following sections will describe the tests performed in each test module 5 1 1 USB Controller Register Test The USB Controller register test is intended to provide a basic read write test of the USB host controller s registers This test will run simple 8 and 16 bit pattern test to verify the connection of the data bus system I O read and write strobes and addressing required to access the registers This test is not designed to test the functionality of the host controller but only to verify sufficient operation to continue the test of the USB ports If this test fails it indicates there is a communication problem between the system and the USB host controller 5 1 2 USB Speed and Connection Test The USB speed and co
11. ency test 1P 2P 3P 4P 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Pagell Starting USB low speed test 1P 2P 3P 4P Starting low speed loopback test 1P 2P 3P 4P USB hub test passed Example 2 Testing a four port hub peripheral device Multi port hubs can be integrated into peripheral devices such as monitors and keyboards In these types of devices it is common to have one of the hub ports used for the peripheral device TESTHUB allows for this type of configuration by allowing the test to bypass one of the hub ports he following example describes the testing of a 5 port hub where the third port port 2 is used for a peripheral device TESTHUB 0 p4 z2 lt CR gt Example 3 Testing a Cyrix CX5520 with an on board Atmel USB Hub The Cyrix CX5520 Core logic chip integrates an two port OHCI controller In certain versions of the chip the USB port does not correctly operate in low speed mode To correct this problem designers are using an on board Atmel hub chip to provide two functional USB ports In this configuration the Atmel chip is connected to the first USB port on the CX5520 The first two Atmel hub ports are then connected to the USB connectors The following command line will command the TESTHUB software to test the two external ports TESTHUB 0 p2 lt CR gt M200038 04 1994 2000 Sycard Technology Page 12 USBtest 2000 User s Manual 4 0 Hardw
12. ler he sx option allows the user to select the Nth instance of the USB controller Example In a Intel PIIX4 based system the user installs 2 OHCI controller boards based on the Opti FireLink USB Host controller If the user simply runs the TESTUSB software with no parameters the software will try to test the first OHCI controller Sycard Technology USBtest port software v1 1 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 To force the test software to the second Opti controller board use the following TESTUSB 0 b1045 c861 s1 lt CR gt Sycard Technology USBtest port software v1 1 USB OHCI Chip Ven ID 1045 Dev ID C861 Memory base seg D000 2 2 1 Excluding certain tests In some situations it may be desirable to bypass certain tests The TESTUSB software allows the user to disable the following tests Parameter Description l Shield continuity test 6 Frequency test Table 2 2 1 e parameter values Example If the user wishes to disable the shield continuity test and the low speed tests enter the following command line TESTUSB 0 v e 5 7 1994 2000 Sycard Technology M200038 04 USBtest 2000 User s Manual Page 9 3 0 USBtest Operation External Hubs External hub devices are tested using the TESTHUB executable TESTHUB is designed to test up to 8 ports on an external hub Figure 3 0 1 illustrates the test configuration for a 4 port hub device USBtest 2000 USBtest 2000 Port O Port 1 Port O Por
13. nnection test verifies the USB test is connected to the specified port The software will check the status registers in the UHCI or OHCI controller to verify if a high speed device the USBtest is connected 5 1 3 USB Enumeration Test This portion of the test performs a standard USB peripheral enumeration The following steps occur in the enumeration process Send a USB reset to the USBtest Read configuration parameters Verify USBtest string identifiers Enable Device Configure USB address Sie If any of these transactions fail and error is reported and the program terminates This section of the test will also read the firmware version of the USBtest hardware The firmware version is displayed in the test status 5 1 4 High Speed Pulldown Test Immediately after a USB reset the USBtest firmware will measure the idle state of the D signal line to verify that the host is properly pulling down the signal with a 15K resistor If the pull down is missing a 220k pull up resistor on the USBtest will cause the D line to be pulled high The TESTUSB software will request this measured value from the USBtest 2000 during this test M200038 04 1994 2000 Sycard Technology Page 14 USBtest 2000 User s Manual 5 1 5 High Speed Loopback Test The high speed loopback test will send and receive a fixed data pattern to the USBtest in high speed mode Any data errors will be flagged 5 1 6 USB Vcc Test The USBtest s on board A D converter i
14. re has been tested with the following USB host controllers Intel PIIX4 UHCI Intel PIIX3 UHCI Opti FireLink 82C861 OHCI CMD USB0670 OHCI Via VT82C586B UHCI Cyrix CX5520 OHCI 1 2 Specifications Electrical Supply Voltage 9VDC 400mA Physical Height 1 5 Length 6 5 Width 6 0 Environmental Temperature 0 50 degrees C Humidity 0 95 Non condensing Reliability Connector Life Rated at 10 000 insertion removal cycles 1 3 Packing List The USBtest package includes the following e USBtest 2000 Test Unit e USB A B 20 28 Gauge meter cables 2 e USBtest Software Diskette e USBtest User s Manual M200038 04 1994 2000 Sycard Technology Page 2 USBtest 2000 User s Manual 1 4 Related Documentation Universal Serial Bus Specification Revision 1 0 and 1 1 Open Host Controller Interface Specification for USB Release 1 0a Universal Host Controller Interface UHCI Design Guide Revision 1 1 Intel 82371AB PCI to ISA IDE Xcelerator PITX4 Data Sheet April 1997 Intel 82371SB PCI to ISA IDE Xcelerator PIIX3 Data Sheet Intel 8x930Ax Universal Serial Bus Microcontroller Data Sheet Universal Serial Bus Architecture Mindshare Inc 1 5 Installing the USBtest Software The USBtest software consists of two executable programs TESTUSB EXE is designed to test USB root hubs TESTHUB EXE is designed for external hubs To install the software simply copy the executables to your hard disk If desired th
15. rop is specified M200038 04 1994 2000 Sycard Technology Page 10 USBtest 2000 User s Manual hx High and Low speed termination measurement tolerance default 50 fn Enable SOF frequency test n is the tolerance in parts per million ppm Default is 8300ppm e x y Disable certain tests mx y Set test options see application notes for usage m Enter debug menu Note Switches can be entered in any order and must be separated by a space 3 2 Using the TESTHUB Software Section 3 1 describes the command line switches used to invoke the TESTHUB software If a manual is not handy the TESTHUB software includes a single screen listing of the command line switches To view this screen simply enter the TESTHUB command without any switches TES THUB lt CR gt Sycard Technology USBtest Hub Test Software Version 1 3 2 1 00 TESTHUB Help Menu 0 Select USB host controller port 0 1 Select USB host controller port 1 px number of hub ports to test 4 is default zx Hub port number to exclude from testing cx load current x specifies load 0 no load 1 100mA 2 500mA 3 600mA bxxxx yyyy Specifies PCI Vendor ID Device ID of host controller for example b8086 7112 specifies the Intel PIIX4 sx PCI Chip Number s1 selects 2nd USB controller jxxxx Select alternate OHCI memory window jD800 selects D800 0 segment ixxxx Select alternate UHCI I O address i140 is default at 0x0140 v0 No test progress displayed vl Display
16. ry for service M200038 04 1994 2000 Sycard Technology
17. s capable of measuring the level of USB Vcc under various operating conditions The USB Vcc test will measure the USB Vcc under an unloaded condition and flag an error if the voltage varies outside of 10 of 5 00V 5 1 7 USB Vcc Load The USBtest is capable of applying three different resistive loads to the USB Vcc lines If the c 1 c2 or c3 options are specified the USBtest will apply the following loads to the USB Vcc Current 5V 100mA 500mA 8 333 ohms 600mA After the resistive load is applied the TESTUSB software will command the USBtest to measure the USB Vcc If the USB Vcc drops below 4 15V or the value specified with the Lx option an error will be reported In addition if the USB Vcc does not drop at least 0 1V from the unloaded Vcc value an error will be reported This feature allows the testing of any current protection devices on the host The Dx option allows the user to specify a minimum voltage drop from the unloaded Vcc value A negative drop value allows a range that includes the measured unloaded Vcc value For example by specifying D 0 5 will effectively disable the load drop test 5 1 8 USB Shield Continuity Test The USBtest s A D converter can measure the voltage on the USB cable shield A 1 0k ohm pull up resistor from the USB shield to the USB Vcc will cause the shield voltage to rise above ground if the shield is not grounded on the host 5 1 9 USB SOF Frequency Test The USBtest s SOF frequen
18. st unit does not need to be connected for the Host Controller test to pass Connect Test Fails If the basic connect test fails the TESTUSB software is unable to detect that a USBtest unit is connected No further testing is possible 1 Cable incorrectly connected 2 USBtest connected to the wrong port 3 Bad USB cable 4 USBtest connected through external Hub device 5 USBtest not powered up High Speed pulldown test failure The A D converter will measure the voltage present at the D signal line with a internal 220K pullup resistor Since a pulldown resistor of 15K is required on the host side an expected voltage on the D signal should be 15K 15K 220K 5 0V 0 32V The default tolerance for this measurement is 50 Which allows for a terminated voltage of between 0 48 to 0 16V The user may change the tolerance of this measurement by using the hn option where n is the acceptable percentage of error h40 specifies a tolerance of 40 Failure when Vcc load is applied c1 c2 or c3 option There are several possible failures 1 Bad or underrated Current Protection device 2 USB Cable too long 3 USB Cable is not rated for high power device 4 Lx or Dx options need to be specified Shield ground failure 1 Shield ground on host system not tied to digital ground 2 Bad USB cable Port Status LEDs stay on after reset or power up 1 Bad or incorrect power module 2 Bad USBtest 2000 unit return to facto
19. status for each test default v2 Display status voltages and erroneous data values tx USB Vcc tolerance percent 10 is default lx USB loaded Vcc lower Voltage 4 15 is default dx USB loaded Vcc protection device minimum Voltage drop 0 06 is default for 500 or 600 mA load 100 mA drop not checked unless drop is specified x Disable loaded Vcc drop checking unless a drop is specified f Enable frequency checking default is 800 ppm fN sets to N ppm m Debug menu Copyright 1994 99 Sycard Technology 1180 F Miraloma Way Sunnyvale CA 94086 408 749 0130 408 749 1323 FAX On the Web at http www sycard com Hit any key to exit help menu Example 1 Testing a four port hub connected to a Intel PIIX4 based host The following command line will test a four port hub connected to port 0 of a PIX4 UHCI controller TESTHUB 0 f c1 p4 lt CR gt Sycard Technology USBtest hub software v1 3 USB OHCI Chip Ven ID 0E11 Dev ID AOF8 Rev 04 Memory base seg D000 Starting USB register test Passed Starting USB speed and connect confirmation Passed Starting enum hub 0416 0101 0 02 tester 0 47 Passed Starting high speed pulldown test 1P 2P 3P 4P Starting loopback test 26 1P 2P 3P 4P Starting USB Vcc voltage test 1P 2P 3P 4P Starting USB Vcc loaded voltage test 1P 2P 3P 4P Starting USB shield continuity test 1P 2P 3P 4P Starting USB SOF frequ
20. t 1 Port A Port B Port C Port D USB Hub Under Test Upstream Port Figure 3 0 1 Using the USBtest to test an external hub 3 1 USBtest Software External Hubs The TESTHUB software is very similar in operation to the TESTUSB software Most of the command line options are the same with the exception of the px and zx switches Syntax TESTHUB 0 1 px zx bxxxx yyyy Cx sx tx vx lx dx x f e x y hx m Switches 0 Use root hub port 0 as the upstream port 1 Use root hub port 0 as the upstream port px Number of hub ports to test ZX Hub port to exclude from testing bxxxx yyyy Select specific USB port device by PCI Vendor ID xxxx and Device ID yyyy SX Specify which USB controller s1 selects second USB host controller specified by the b option CX Enable USB Vcc load c1 selects 100mA load c2 selects 500mA load c3 selects 600mA load SX Select USB controller s2 selects the 2nd occurrence of the selected bxx chip tx USB Voltage measurement tolerance in percentage default 10 VX Verbose level v0 Display only pass fail status v1 Display pass fail status for each individual test v2 Display actual measured values from A D tests Ix USB Loaded Vcc lower Voltage 4 15 is default dx USB loaded Vcc protection device minimum Voltage drop 0 06 is default for 500mA or 600mA load 100mA drop checking is disabled unless drop is specified X Disable loaded Vcc drop checking unless a d
21. t controller resources Any software or operating system that blocks or allocates resources that conflicts with the USBtest software will cause the test to fail See section 3 1 for information on the resources used by the USBtest software In Windows 95 98 the USBtest software should be run in a MSDOS Safe mode This assures that sufficient upper memory areas are available for the test windows Operation in a DOS Box under windows is not recommended To enable a Safe mode MSDOS environment reboot the computer and enter lt F8 gt as the computer starts to boot A user can select a MSDOS Safe Mode from the startup menu M200038 04 1994 2000 Sycard Technology Page 6 USBtest 2000 User s Manual 2 2 Using the TESTUSB Software Section 2 1 describes the command line switches used to invoke the USBtest software If a manual is not handy the USBtest software includes a single screen listing of the command line switches To view this screen simply enter the TESTUSB command without any switches TESTUSB lt CR gt Sycard Technology USBtest Port Test Software Version 1 1 TESTUSB Help Menu 0 Select USB host controller port 0 1 Select USB host controller port 1 cx load current x specifies load 0 no load 1 100mA 2 500mA 3 600mA bxxxx yyyy Specifies PCI Vendor ID Device ID of host controller for example b8086 7112 specifies the Intel PIIX4 sx PCI Chip Number s1 selects 2nd USB controller jxxxx Select alternate OHCI memory
22. window jD800 selects D800 0 segment ixxxx Select alternate UHCI I O address i140 is default at 0x0140 v0 No test progress displayed vl Display status for each test default v2 Display status voltages and erroneous data values tx USB Vcc tolerance percent 10 is default lx USB loaded Vcc lower Voltage 4 15 is default dx USB loaded Vcc protection device minimum Voltage drop 0 06 is default for 500 or 600 mA load 100 mA drop checking is disabled unless drop is specified x Disable loaded Vcc drop checking unless a drop is specified f Enable frequency checking default is 800 ppm fN sets to N ppm m Debug menu Copyright 1994 99 Sycard Technology 1180 F Miraloma Way Sunnyvale CA 94085 408 749 0130 408 749 1323 FAX On the Web at http www sycard com Hit any key to exit help menu Example 1 Basic test of the Intel PIIX4 USB Host Controller The Intel PIIX4 is a multifunction chip that integrates a dual port USB root bridge The PIIX4 is based on the Universal Host Interface UHCI The following test listing is of a basic test of port 0 of the USB host TESTUSB 0 lt CR gt Sycard Technology USBtest port software v1 1 USB UHCI Chip Ven ID 8086 Dev ID 7112 I O Base EF80 Starting USB register test Passed Starting USB speed and connect confirmation Passed Starting enumeration test firmware rev 0 47 Passed Starting high speed pulldown test Passed Starting loopback test
23. xxxx yyyy Select specific USB device by PCI Vendor ID xxxx and Device ID yyyy SX Specify x 1 instance of USB controller s1 selects second USB host controller specified by the b option s2 select the third etc CX Enable USB Vcc load c1 selects 100mA load c2 selects 500mA load c3 selects 600mA load SX Select USB controller s2 selects the 2nd occurrence of the selected bxx chip tx USB Voltage measurement tolerance in percentage default 10 VX Verbose level v0 Display only pass fail status v1 Display pass fail status for each individual test v2 Display actual measured values from A D tests Ix USB Loaded Vcc lower Voltage 4 15 is default dx USB loaded Vcc protection device minimum Voltage drop 0 06 is default for 500mA or 600mA load 100mA drop checking is disabled unless drop is specified X Disable loaded Vcc drop checking unless a drop is specified fn Enable SOF frequency test n is the tolerance in parts per million ppm Default is 8300ppm hx High and Low speed termination measurement tolerance default 50 e x y Disable certain tests m Enter debug menu Note Switches can be entered in any order and must be separated by a space Note To test both ports in a two port system enter 0 1 2 1 1 USBtest Host Software Environment The USBtest software is designed to run under DOS 3 0 or higher During the test USBtest software makes direct I O and memory accesses to the USB hos
Download Pdf Manuals
Related Search