DS90UB949A-Q1EVM: DS90UB949A-Q1EVM and DS90UB948

fazil Pathan

Part Number: DS90UB949A-Q1EVM
Other Parts Discussed in Thread: ALP

Tool/software:

Hi,

I got the DS90UB949A EVM recently, I want to setup the HDMI to FPDLink3 on this board.

[input/output]
My HDMI source is My PC.
FPD Link 3 output is a display with deserializer 948. (it works well).
[preparation]
I connect this board with Mini USB , (set J33 to get power with USB , the LED on boad turn on ).
the S1, S2, S3, S6 are also with default setting.

[My target]
I only want to translate HDMI input to the FPD Link3 output. (the output resoluation is 1920*720)

Could you help me to provide the EDID file and the Script that I to write into the serializer. Below are the TFT parameters for EDID file.

Regards,
Fazil

9 months ago

+1 Josh Baik 9 months ago

TI__Mastermind 22946 points

Hi Fazil,

Below is the script to upload the 1920*720 EDID file. The EDID needs to be programmed before the HDMI input is connected. Or you can set EXT_CTL = 1 via MODE_SEL, program the EDID, and then use register writes to set EXT_CTL = 0.

Fullscreen 5706.949_EDID_Script_1920_720.py Download

# Script to load EDID
serAddr =0x18

exEDID = [0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x04, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x25, 0x80, 0x60, 0x70, 0xd0, 0x35, 0x20, 0x40, 0x20,
0xd8, 0x08, 0x00, 0x0d, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc9,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]


board.WriteI2C(serAddr,0x48,0xD)
for x in range(0,256):
	board.WriteI2C(serAddr,0x49,x)
	board.WriteI2C(serAddr,0x4B,exEDID[x])

Best,

Josh

0 fazil Pathan 9 months ago in reply to Josh Baik

Prodigy 30 points

Hi Josh,

Thank you for your response.
Hope you have generated the EDID for the TFT timings that I have shared with you, because today I tried multiple EDID but I am not able to reflect the Video on TFT. I have generated pattern successfully but HDMI video I am not able to reflect. My PC is detecting and also I can be able to use 2 display in my PC but in TFT it is not reflecting. Few snaps from ALP tool after flashing of few EDID script.

Regards,
Fazil