Évaluations - 5, GPA: 4.6
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Facilité d'utilisation
Click the Save button to save the file in .TXT format. Click the Exit button to return to the Translate EDID screen. 60 HD PATTERN SIGNAL GENERATOR SOFTWARE Generating the EDID Checksum Once an EDID has been read or loaded into the HD Pattern Signal Generator, a checksum can be generated. 1. Read or load an EDID file into the HD Pattern Signal Generator. 2. Click the SUM button under the READ panel. Click the SUM button to generate the EDID checksum 61 HD PATTERN SIGNAL GENERATOR SOFTWARE 3. The EDID Checksum dialog will be displayed. Select the method of how unused bytes will be calculated into the checksum by clicking either the 0x00 or 0xFF radio button. Select how unused bytes will be used in calculating the checksum 4. Adjust the EEPROM size, if necessary, by selecting it from the EEPROM Size drop-down list: 256, 512, 1024, or 2048 bytes. 62 HD PATTERN SIGNAL GENERATOR SOFTWARE 5. Click the CHECKSUM button to generate the EDID checksum. By default, the checksum will be restricted to the lower 4 digits. This feature can be disabled unchecking the Show lower 4 digits of checksum only box. Uncheck to disable truncation of checksum In the example above, if the checksum were calculated by disabling the Show lower 4 digits of checksum only feature, the result would be 0x33600. 63 HD PATTERN SIGNAL GENERATOR SOFTWARE Saving an EDID to a File Any EDID can be saved to a file, once it has been read into the HD Pattern Signal Generator. 1. Once an EDID has been read, click the SAVE button. Click the SAVE button to save the EDID to a file. 64 HD PATTERN SIGNAL GENERATOR SOFTWARE 2. The Save EDID fi le dialog box will be displayed: 3. Select a name for the EDID file and type it in the File name box. The file can be saved as either a .hex file or a .bin file. Select the fi le type from the Save as type pull-down list. 65 HD PATTERN SIGNAL GENERATOR SOFTWARE 4. Select the directory where the EDID file will be saved and click the Save button on the dialog box. By default, the EDID file will be saved in the working directory of the HD Pattern Signal Generator software directory. Click to save the EDID 66 HD PATTERN SIGNAL GENERATOR SOFTWARE Clearing the EDID from Memory 1. Click the Clear button to clear the EDID from memory. Clears the EDID from memory If an EDID is loaded (OPEN) under the WRITE panel, use the CLEAR button to clear it from memory. 67 HD PATTERN SIGNAL GENERATOR SOFTWARE Loading an EDID from a File An EDID file in binary (.bin) format or in text format (.hex) can be loaded into the HD Pattern Signal Generator. 1. Click the OPEN button under the WRITE panel. If necessary, refer to page 61 on how to save an EDID to a file. Click to open an EDID file 2. Select the EDID file to be opened. 68 HD PATTERN SIGNAL GENERATOR SOFTWARE 3. The EDID file will be loaded into the HD Pattern Signal Generator and displayed in the WRITE panel. In the example below, an EDID has been read using the HD Pattern Sig nal Generator software (using the READ function) and an EDID has been loaded from a fi le using the OPEN function. 69 HD PATTERN SIGNAL GENERATOR SOFTWARE Comparing EDID Data The HD Pattern Signal Generator software can compare two EDID data structures. One EDID is read from a sink (display, A/V receiver, etc) and the other is loaded into the HD Pattern Signal Generator software using the OPEN function. 1. Read the source EDID by following the instructions starting on page 52. 2. Load an EDID into the HD Pattern Signal Generator by following the instructions starting on page 65. 3. Click the COMP button under the READ panel. Click the COMP button to compare the two EDID data structures 70 HD PATTERN SIGNAL GENERATOR SOFTWARE If the two EDID data structures are identical, then a message will be displayed indicating that the compare process has passed: Click the OK button to return to the EDID Read / Write screen. If there are differences in the two EDID data structures, then the compare process will fail. The number of reported comparison errors will also be displayed. Click the OK button to return to the EDID Read / Write screen. 71 HD PATTERN SIGNAL GENERATOR SOFTWARE Writing EDID to a Sink After an EDID has been read from another source or loaded from a fi le, the EDID can be written to the sink connected to the output of the HD Pattern Signal Generator. WARNING: Overwriting the EDID of a sink device may cause unwanted results. Be sure to save a copy of the EDID. This will allow the sink’s EDID to be restored if necessary. Also note that not all device EDID data structures can be overwritten. If the sink cannot be programmed with a new EDID, the WRITE process will fail. 1. Load an EDID into the HD Pattern Signal Generator by following the instructions starting on page 65. 2. Click the WRITE button to write the EDID to the sink device. Click to write the EDID data to the sink device 72 HD PATTERN SIGNAL GENERATOR SOFTWARE Erasing the EDID from a Sink The ERASE function will erase the EDID of a sink device. WARNIN...