imx8m nano can't get non-image data of mipi camera

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imx8m nano can't get non-image data of mipi camera

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Contributor II

Hi all:

      We use IMX8M Nano to adapt a MIPI camera. The output resolution of the camera is 1280*483. The Data type of MIPI packets in the first 480 lines is 0x2C, and that of MIPI packets in the last 3 lines is 0x12.

link_1-1631861701807.png

 

      The data we got from V4L2 was normal for the first 480 rows and '0' for the last three.Through the oscilloscope, we can confirm that the sensor output is normal.

link_1-1631858572331.png

     In the <i.MX 8M Nano Applications Processor Reference Manual>, the packets with Data type 0x10 and 0x11 are ignored.

link_0-1631858409629.png

    In the interrupt function we add log to confirm that the interrupt will only be triggered at Frame Start and Frame End. 

link_2-1631858947530.png

      I want to know whether the mipi packets data of 0x12 type is also ignored, and how to solve this problem?

 

Thanks & Best Regards,

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Yanlin

 

in general, hardware have the capability to receive packets data of 0x12 type,

but there is no software driver to support it. For help may be suggested to proceed with

https://contact.nxp.com/new-prof-svcs-sw-tech

 

Best regards
igor

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Yanlin

 

in general, hardware have the capability to receive packets data of 0x12 type,

but there is no software driver to support it. For help may be suggested to proceed with

https://contact.nxp.com/new-prof-svcs-sw-tech

 

Best regards
igor

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