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DS90UB949-Q1EVM: Load the Configuratuons Automatically after every bootup

Sundar Vinayagam
Intellectual 456 points
Part Number: DS90UB949-Q1EVM
Other Parts Discussed in Thread: ALP

Hello Team,

We are trying to do a setup like this.

PC -> HDMI -> DS90UB949 EVM -> DS90UB948 EVM -> Display.

We were able to get the display properly, but the problem is everytime we need to load the configuration files on DS90UB49 and 948. We want to load the settings permenantly on EVMs.

 Could you please provide a way to do that?

Thanks,

Sundar

  • 0
    TI__Intellectual 1905 points

    Hi Sundar,

    Thanks for reaching out.

    Re: "We want to load the settings permenantly on EVMs."

    The current available EVMs don't have Non-volatile memory that we can use to store settings permanently. But, the Analog LaunchPAD (ALP) software can be used to quickly and easily load the configuration of interest after bootup. The ALP software allows the user to add permanent soft buttons to the Scripting tab so that they can be used to quickly load any configuration of interest. Highlighted below are examples of such shortcut buttons: 

    Please refer to the FPD-Link learning center, "6.1 Use of Analog Launch Pad (ALP) GUI to configure the FPD-Link EVMs" video, to learn more about how to do it. In minute 12, the video shows how to add such buttons. Here is the link for your reference:

    https://training.ti.com/use-analog-launch-pad-alp-gui-configure-fpd-link-evms

    Best Regards,

    Solomon

  • 0 in reply to Solomon Ali
    Intellectual 456 points

    Hello Solomon,

    Thanks for the response.

    We will try that.

    Could you please suggest us how to LOAD EDID (for example if the display resolution is 1280 x 720) and we want to load the EDID permanently on 949. How to do that? Please help to suggest.

    Thanks,

    Sundar

  • +1 in reply to Sundar Vinayagam
    TI__Intellectual 1905 points

    Hi Sundar,

    Re: "... we want to load the EDID permanently on 949."
    949 supports four options for delivering EDID:

    • External local EDID (EEPROM)
    • Internal EDID loaded into device memory (This storage is volatile and requires loading from an external I2C master (local or remote)).
    • Remote EDID connected to I2C bus at deserializer side
    • Internal pre-programmed EDID

    So, for External local EDID option, there is an 8 pin socket (U3) in the 949 EVM that you can place an EEPROM on it. You can think of this as another way of storing EDID info permanently. But, remember you need to strap MODE_SEL correctly to select this option.

    Best regards,
    Solomon

  • 0 in reply to Solomon Ali
    Intellectual 456 points

    Thanks Solomon for your reply, We will try this.

  • 0 in reply to Sundar Vinayagam
    TI__Intellectual 1905 points

    Thanks for the update. Please let us know if you run into any issue.