Tool/software:
Error code : source error (0x2A2) - Exernal source parrale port clock frequency is not within the allowable range.
When I connect HDMI, it does not recognize it as monitor 2 and does not respond at all.
Is it correct that the EDID information is in the EEPROM?
When I read the EEPROM located next to the HDMI on the 4620 EVM, it is written as FF. As you answered, we need to write EDID to the EEPROM to enable HDMI connection, but is it correct?
We used Aadvack tool to read the EEPROM contents and it was confirmed as 0xFF, and when we write the EDID you sent, only 11 bits are written, and when we read it again, it is confirmed as 0xFF... Aadvack tool is not the problem, other normal monitor EDID information is reading fine. I am wondering why the EDID information is not writing to the Micronchip EEPROM chip. Is it because I am writing to the EEPROM chip in the EVM board state?
Kim,
The file I shared is 256 bytes. I see that the length parameter in the GUI is 11 bytes. Is this editable? Can you please set this to 256 bytes?
The WP is grounded. So device write operations can be done.
Thank you,
Regards,
Aishwarya
I wrote the 256 bytes you sent, but only 11 bits are written. I think it is recognized as a NACK because the write is interrupted by a string of 0x00.
I wrote all bytes in 8 bytes each to 0x05 address. Writing and reading 256 bytes at a time is not working. Even when writing and reading 8 bytes at a time, it sometimes did not work properly, so I tried several times. I'm not sure if this is due to a frequency issue. After writing 8 bytes several times, I succeeded in entering the EDID and the monitor was recognized and HDMI mirroring was successful.
