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DS90UB940-Q1: configuration questions

Kailyn Chen
Genius 9560 points
Part Number: DS90UB940-Q1
Other Parts Discussed in Thread: ALP

Hello,

MTK platform：MT6769（G80）

operating environment ：Android  11

Input signal is from DS90UB947, 1 lane, 1920*720，60Hz, FPD link LVDS, and used with DS90UB940 to change the 1920*1080，30Hz RAW10 CSI output。

1）How to configure the  mclk、pclk、linelength、framelength、mipi_date_lp2hs_settle_dc、mipipixel_rate？

2）How to initialize the registers？ 

Best regards

Kailyn

  • 0
    TI__Guru 66810 points

    Hi Kailyn, 

    Are you using ALP to program and initialize the 947 and 940? 

    There are no drivers required for the 940 deserializer to operate properly. You can use the software tool ALP (Analog Launch Pad www.ti.com/tool/alp) to control specific device registers for initial patgen modes or other operating modes.

    Kailyn Chen said:
    1）How to configure the  mclk、pclk、linelength、framelength、mipi_date_lp2hs_settle_dc、mipipixel_rate？

    The datasheets and ALP guides will specify the registers and equations for these parameters. Do you have a specific question about any of these parameters? 

    Regards, 

    Logan