DS90UB926Q-Q1: How to let MCU provide pattern to 925 and lock with 926 ?

Kygo Cheng

Part Number: DS90UB926Q-Q1

Hi Team

Now the 925 EVM could lock with customer 926 , the TX/RX can LOCK and we could get RGB!

But Customer want to use their 925 board (include MCU) to connect with 926 , it will lost of lock when MCU provide pattern to 925.

1.How to let MCU provide pattern to 925 and lock with 926 ? (Attached is the current state of the information)

2.Please help to confirm whether 925 and 926 register settings is OK ? (Complete data on the last page of PPT)

3. The SCH is also attached, you can view it if necessary ,THX

debug_EN.pptx

6114.DS90UB925Q線路圖.pdf

over 3 years ago

0 Shu Huang over 3 years ago

TI__Mastermind 18046 points

Hi Kygo,

I would like to confirm that the only part of the system that was changed was replacing the 925 EVM with the customer board? Everything else like the cables and the display remained the same?

Were the register configurations same as the successful EVM RGB output with the exception of disabling the pattern generator?

Can the customer access the 926 directly and run MAP (Margin Analysis) on the integrity of the 925 to 926 link?

This first step would help us check the signal strength between the new 925 board and the 926 before looking at the MCU and 925.

Best,

Shu

0 Kygo Cheng over 3 years ago in reply to Shu Huang

TI__Expert 6830 points

Hi Shu Huang

Got it!

I will give you the feedback soon

0 Shu Huang over 3 years ago in reply to Kygo Cheng

TI__Mastermind 18046 points

Hi Kygo,

Thank you for the help, I will wait for customer feedback.

Best,

Shu

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DS90UB926Q-Q1: How to let MCU provide pattern to 925 and lock with 926 ?