882 Video Test Instrument User Guide
(Rev A.35)
383
I2CR? (OUT1:I2CR?, OUT2:I2CR?, VGA:I2CR?)
I2C port Read
Class
EDID and DDC control
Description
Automatically reads data using a specified I2C protocol. This command reads data from
the specified connector, bus and device using the I
2
C bus. If no connector is specified, the
query defaults to OUT1 or VGA depending on the active output. All numeric parameters
are given in ASCII HEX.
Note: EDID-compatible receivers use EPROMs with single-byte or double-byte
addresses. The I2CR? query uses different parameters depending on the EPROM
type. To determine which EPROM type is used, try both syntaxes until you can read
data from the EPROM.
Query syntax
(EPROM with
single-byte
addresses)
connector
:I2CR? bus_name
i2c_address offset #_of_bytes
Query syntax
(EPROM with
double-byte
addresses)
connector
:I2CR? eprom1
i2c_address offset #_of_bytes
Query syntax (device
protocol)
connector
:I2CR?
bus_name i2c_address offset #_of_bytes
connector
OUT1, OUT2 = HDMI OUT 1 or HDMI OUT 2 connector
VGA = VGA connector
bus_name
(optional - text)
device queried(eprom, eprom1, TV, DT, HT, HR)
i2c_address
(hex)
i
2
c bus address (A0, A1,...)
offset
(hex)
address offset (in bytes)
#_of_bytes
(hex)
number of bytes
Example 1
This example reads 10 bytes of E-EDID data, using the I2C e_ddc protocol.
R:\>i2cr? eprom a0 80 10
02031A76478502030406070123090707
Содержание 881
Страница 1: ...881 882 Video Test Instrument User Guide 882E for HDMI ...
Страница 12: ...10 Contents ...
Страница 50: ...38 Chapter 1 Getting Started ...
Страница 84: ...72 Chapter 2 Testing Video Displays ...
Страница 99: ...882 Video Test Instrument User Guide Rev A 35 87 ...
Страница 102: ...90 Chapter 3 Administrative Tasks ...
Страница 107: ...882 Video Test Instrument User Guide Rev A 35 95 ...
Страница 108: ...96 Chapter 3 Administrative Tasks 13 Power cycle the generator and it will boot the upgraded firmware ...
Страница 216: ...204 Chapter 5 Working with Formats ...
Страница 248: ...236 Chapter 7 Working with Images ...
Страница 264: ...252 Chapter 8 Working with Test Sequences ...
Страница 342: ...330 Chapter 10 Testing Lipsync 9 Navigate to your PC and double click on the report A sample is shown below ...
Страница 382: ...40 Chapter 11 Testing EDID for HDMI 2 Expand the EDID Block in the navigation view ...
Страница 388: ...46 Chapter 11 Testing EDID for HDMI d Click the OK button to save the data block that you added ...
Страница 446: ...104 Chapter 12 CEC Interactive Troubleshooting Environment ITE ...
Страница 493: ...882 Video Test Instrument User Guide Rev A 35 151 ...
Страница 494: ...152 Chapter 13 Testing HDCP on HDMI The following is an example of a report for the HDCP compliance test for a repeater ...
Страница 591: ...882 Video Test Instrument User Guide Rev A 35 213 Commands by name ...
Страница 649: ...882 Video Test Instrument User Guide Rev A 35 271 Related commands DCPX OUT1 DCPX OUT2 DCPX AV DCPX VGA DCPX ...
Страница 678: ...300 Appendix A Command Reference Example 7 Turn audio off DPTG 3 DPGU Example 8 Turn audio on DPTG 7 DPGU ...
Страница 687: ...882 Video Test Instrument User Guide Rev A 35 309 Example DVIC 23 FMTU ...
Страница 989: ...882 Video Test Instrument User Guide Rev A 35 551 B Image Reference Topics in this appendix Standard image descriptions ...
Страница 990: ...552 Appendix B Image Reference Standard image descriptions 3DCRTK Description Test image for testing 3D crosstalk ...
Страница 991: ...882 Video Test Instrument User Guide Rev A 35 553 3DCUBES Description Test image for testing 3D motion ...
Страница 1018: ...580 Appendix B Image Reference The EMITest5 image is shown below ...
Страница 1042: ...604 Appendix B Image Reference Imex1 Description InFocus1 Description Special test image developed per customer specifications ...
Страница 1094: ...656 Appendix B Image Reference ...
Страница 1095: ...882 Video Test Instrument User Guide Rev A 35 657 C Error Messages Topics in this appendix Error code descriptions ...
Страница 1124: ...686 Appendix C Error Messages ...
Страница 1140: ...702 Appendix D Format Reference ...