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Original question:

DS90UB941AS-Q1: DS90UB941AS-Q1: split mode support

DS90UB941AS-Q1: hardware issus

albert qiu
Intellectual 320 points
Part Number: DS90UB941AS-Q1

Hi TI expert

Is there a time sequence diagram of mipi that can be provided, similar to the attached picture

  • 0
    TI__Mastermind 18046 points

    Hi Albert, 

    I am unclear on the request here. Are you asking for a timing diagram from a MIPI DSI source? What exactly are you trying to do? 

    Best,

    Shu

  • 0 in reply to Shu Huang
    Prodigy 20 points

    Yes Shu, we want to know how to get a timing diagram from a MIPI DSI source

  • 0 in reply to Yao Jun
    TI__Mastermind 18046 points

    Hi Yao Jun, 

    Do you have a specific DSI source you're using? The timing diagram should adhere to the MIPI DSI standard and it is not something we support. I recommend reaching out to the DSI generator vendor and discuss the settings with them or obtain a copy of the DSI standards to get the correct timing sequence. 

    Best,

    Shu

  • 0 in reply to Shu Huang
    Prodigy 20 points

    Hi Shu,

    The source mipi timing is standerd, and i want to know HSA、HBP these params are refer DS90UB94AS or LCD？ and do you have any software initial sample code for referance?

  • 0 in reply to Yao Jun
    TI__Mastermind 18046 points

    Hi Yao Jun, 

    The timing parameters listed typically come from a display panel/LCD and can be found in their datasheet. The 941 does not generate these parameters. 

    The DSI source needs to be programmed with the supported timing of the LCD to transmit video to the 941. Below is the 941 DSI Bring Up Guide that provides a walkthrough of some example bring up scenarios. 

    www.ti.com/.../snla356.pdf

    Do you have a specific DSI video mode you are configuring for? The available modes are:

    • Non-burst mode with sync pulses

    • Non-burst mode with sync events

    • Burst mode

    The only initialization needed for the 941 are the DSI configurations associated with the above modes. I can help with the sample code if you know which mode the DSI Source is using. 

    Best,

    Shu