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Original question:

DS90UB953-Q1: two camera sync mode for DS90UB953/DS90UB954

DS90UB954-Q1: 720p init register DS90UB954

Cheung Sin Ming
Prodigy 60 points
Part Number: DS90UB954-Q1
Other Parts Discussed in Thread: ALP

i need to build a camera link with OV 720p Raw sensor with DS90UB954 and DS90UB953 Pair. Now i can detect the lock signal form DS90US954 on my pcb board..

Can let me know where can download the ref. initization register setting of 954? 

I saw that ovt_1280_1080_30fps_REMOTE.py may similar setting file.. Could let me know where can i get such ref. setting file?

b.r.

Ivan

  • 0
    TI__Genius 10475 points
    Hello,
    You can refer to this thread for the example OVT imager initialization script:
    e2e.ti.com/.../638383
  • 0 in reply to Palaniappan Manickam
    Prodigy 60 points
    HI, Palaniappan,
    i tried with 954_953_sensor_setup.txt.
    I can initialized sensor by 954. Can measure the mipi signal output from sensor to 953.
    But i always get CSI Error print out with 0xFF by board.ReadI2C(UB953, 0x5C, 1)

    Can give me complete file? then i can figure out the problem..

    Btw, is it no way to read i2c (16bit address)from sensor through 954/953?
  • 0 in reply to Cheung Sin Ming
    TI__Mastermind 30515 points

    Hi SinMing,

    yes, the ALP tool can't read 16bits address, but you can use other I2C tool to read it.

    For your issue, please make sure to isolate the root cause step by step:

    1. configure the sensor and UB953 correctly to secure the link between sensor and UB953

    2. make sure the link between ub953 and UB954 is reliable, you can check the lock status in UB954, also you can use UB953's data pattern generation or BIST mode to verify the link between UB953/954.

    3. make sure the link UB954 and processor is correct, you also can use UB954's pattern gen., also you can check the 0x73~0x76 registers to count the line number and line length.

    once you identify which link the issue occurs, you can debug it deeply for this "issued" link further. could be power issue, clock issue or layout issue, or chip setting issue, etc...

    best regards,

    Steven

  • 0 in reply to Steven(Shenzhen) Shi
    Prodigy 60 points

    Hi, Steven, 

    Thank for you guideline.

    It is working now.. The problem is forget to configure 953's lanes input (using 1 lanes).

    b.r.
    ivan