DS90UB949-Q1: How to flash EDID?

David Dominguez Moises

Part Number: DS90UB949-Q1

I have my own set up of the DS90UB949 and everything works fine. Now I want to load my own EDID profile into SRAM for a special display.

How can I do this without TI's evaluation module. Until now I've been using a raspberry to access I2C settings on the board.

Thanks

over 6 years ago

0 Hamzeh Jaradat over 6 years ago

TI__Guru** 108180 points

Hello David,

please refer to the following threads, there you will get useful details.

e2e.ti.com/.../606928
e2e.ti.com/.../2521392
e2e.ti.com/.../592553

also please refer to the datasheet, section "8.3.4 Extended Display Identification Data (EDID)"

0 David Dominguez Moises over 6 years ago in reply to Hamzeh Jaradat

Intellectual 570 points

The second link in special was helpful. The datasheet shows the APB control registers but there was no explanation on how to use them.

I was able to read and write to EDID SRAM using my I2C set up using APB indirect registers.

Thanks

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DS90UB949-Q1: How to flash EDID?