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DS90UB948-Q1: Asking for the DS90UB948 ALP tool detail user guide

SHH
Mastermind 32316 points
Part Number: DS90UB948-Q1
Other Parts Discussed in Thread: ALP

Hi team,

customer would like to request more detail on the ALP tool user guide. Would you please share that to customer?

the issue customer has now is that LCD panel is no display. customer would like to know there is any sequence to tune the ALP tool. 

for the following item highlighted in orange, is there user guide and procedure to follow?

this is previous discussion E2E post

https://e2e.ti.com/support/interface/f/138/t/859149

BR,

Scott

  • 0
    TI__Mastermind 30515 points

    Scott,

    what is your application block diagram?

    do you use the UB948 EVM board but it panel has no display?

    For the alp tool, it shows the ub949's GUI, the items in the menu are on UB949's internal function block, such as: HDMI I/f, internal pattern, UB949's reg. list,..., you can check UB949's d/s on these functions then you can set its register to control these function blocks.

    please let's know if you have any unclear on these items if you compare it with d/s's description. Thanks.

    best regards,

    Steven

  • 0 in reply to Steven(Shenzhen) Shi
    TI__Mastermind 32316 points

    Hi Steven,

    is there any sequence for the ALP GUI tuning?

    BR,

    Scott

  • 0 in reply to SHH
    TI__Mastermind 30515 points

    Not, they are independent to run up.

    for example, if you need set ub949 to work at pattern mode, you just enter the "pattern gen." item, then you can set/select the custom pattern and enable/disable pattern function, no other actions are required.

    best regards,

    Steven

  • 0 in reply to Steven(Shenzhen) Shi
    Prodigy 50 points

    Dear Steven,

    Question1.>

    If I want the resolution, 1280 x 720 for HDMI source into DS90UB949 (Applied in our TX board).

    Then, I set the following <PIC1.> showing our EDID setting for our LCD panel spec and click "Apply" button.

    Is EDID setting saved in our DS90UB949 no matter what I power off -> on our TX board?

    <PIC1.>

    <our LCD panel spec.>

    Quesiton2.>

    Resume above Question 1.,

    How about the following setting?

    Is it correct?

    Question3.>

    Resume above Question 1.,

    The following picture showing detected HDMI is 1280 x 720 being fitted in with our input resolution and the EDID is also fitted (as the Question1.). 

    Why does our LCD panel (our RX board with DS90UB948) still show black ?

    Question4.>

    How do I check <PIC1.> setting with ALP tool being certainly saved in our DS90UB949?

    Question5.>

    Resume above Question 1.,

    I also mdified EDID setting as below <PIC2.> with red mark part.

    <PIC2.>

    After setting this EDID, I power off -> ON TX/RX board.

    However, LCD panel shows black as well.

    This is why I ask you how to check EDID setting with ALP tool being certainly saved in our DS90UB949?

    Question6.>

    Please instruct me other setting inside ALP tool.

    So far, our hardware connection is as below.

    Thanks a lot.

  • 0 in reply to Alvin Lin
    TI__Mastermind 30515 points

    Hi,

    Firstly, the EDID setting is NOT correct! the pic#1 setting is on internal pattern format setting it doesn't matter with EDID! pls check ub949 d/s on the EDID setting.

    for the above issues, pls check below feedback:

    1. not, this setting just is for 949 internal pattern generation, and it doesn't matter with the EDID

    2. when working in internal pattern mode, you can increase the internal pclk freq., this is PCLK freq.

    3. this is on HDMI setting of UB949's HDMI module, it means ub949 received the video source from the TMDS data lanes and the PCLK is decoded as ~75MHz. when UB949 receives the external video source from the TMDS data pins

    4. you can save the pattern format in the pattern menus

    5. NOT, you can't modify the EDID from pattern gen., this just is used for pattern gen.

    6. what do you want to do? you can set the internal pattern (not use the external 720P source) in pic#1 and increase the PCLK to ~100MHz. then you can light the panel connected with ub948.

    regards,

    Steven