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OPT3101: OPT3101 Auto HDR mode Calibration

Pengsheng Qiu
Intellectual 330 points
Other Parts Discussed in Thread: OPT3101, OPT3101EVM

Hi Team：

        I had a problem testing the automatic HDR mode calibration and I used a single channel configuration;

        

        1：Open the INLAB_STEP_0 conditional compilation instruction in SDK to test whether the calibration distance meets the amplitude condition, but the serial port output contains data in addition to channel 1 and channel 3. Is it correct?

        

      The calibration distances I found in this step are 242mm and 572mm：

       

      

     

    I don't understand why in Auto HDR, calibration step INLAB_STEP_0 has data in CH2 channel

   2:After I find the calibration distance that meets the amplitude condition, turn on the INLAB_STEP_1 conditional compilation, test the amplitude value obtained at the high current or low current  distance in channel 0 is very small, and the final distance is also wrong, why 

   

  • 0
    TI__Genius 9380 points

    Pengsheng,

      I will ask programmers to see if they can explain.

  • 0 in reply to Gordon Varney
    Intellectual 330 points

    Gordon：


        You can use OPT3101 EVM hardware to test the phenomenon, I also use EVM to show the same phenomenon, waiting for your message；

        Thanks！！！

  • 0 in reply to Pengsheng Qiu
    TI__Genius 9380 points

    Pengsheng,

    I am waiting on a response. I think I have the answer, but I don't want to be incorrect. I am going to mark this waiting on customer, when I am really waiting on programmers. I will respond ASAP when they get back to me. 

  • 0 in reply to Gordon Varney
    Intellectual 330 points

    Gordon:

          When can I expect a response to this question?

         Thanks!!!

  • 0 in reply to Pengsheng Qiu
    TI__Genius 9380 points

    Pengsheng,

    My apologies. I have asked them again. 

  • 0 in reply to Gordon Varney
    Intellectual 330 points

    Gordon:

           In my test, MSP-430F5229LP+OPT3101EVM was used for Auto HDR mode test

           

          OPT3101-ConfiguratorTool ：

          

          Open SDK conditional compilation INLAB_STEP_0, there is a problem in the serial port print-out data, resulting in an exception in the calibration process；

           

          At this time, my EVM board was fixed, and there was an abnormal data in the middle of the amplitude value printed by the serial port, which caused my calibration failure；

          I added a print LED channel to the SDK print code and configured a single channel, but TX2 appeared in the print information

           

           

            

             I looked again at the OPT3101_configuration.cpp file generated by ConfiguratorTool and found some problems with the configuration produced by the software

            Like this：

            

            In the data manual, configuring TX_SEQ_REG and opening SEL_TX_CH will automatically switch channels, but I only open channel 0, and all TX_SEQ_REG should be 0. After I change the value to 0, the data printed by the serial port is in line with expectations：

            Modified test data：

            

           Maybe you need to update your software！！

            Thanks！！！！