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    SOLVED RAW-MIPI-SC132M硬触发导致图像采集丢失

    Rockchip App camera
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    • cheesefish
      cheesefish last edited by

      case1
      在触发模式下,硬触发方式获取图像,设置的硬触发频率是20hz的上升沿信号;进行帧率统计,发现在持续一段时间后出现无法获取图像、图像丢失的情况。如下图所示。
      2f72a5bf-bd4c-4d85-9223-75b08d9ad8b7-image.png
      dmesg输出如下:
      83add966-4bbd-4edf-83b4-571c6cbf4f67-image.png

      case2
      在流模式下,给予触发信号同样会导致出现此问题,如下图所示。
      20297679-e7f0-4fed-8918-469a1ac206c3-image.png
      dmesg输出如下:
      832a25b3-bacd-40c6-9c86-32a4911310b9-image.png

      环境:
      Edge2开发板,通过mipi加转接板连接到相机。(转接板的问题?)
      gpio使用line 11触发:
      3132bae3-c35c-45c0-8c26-b3e3101a33b5-image.png

      veye_xumm 1 Reply Last reply Reply Quote 0
      • veye_xumm
        veye_xumm @cheesefish last edited by

        @cheesefish
        根据你的这个提示,应该是mipi信号质量太差了。
        你可否拍一下整个系统的照片,再拍一下转接板的正反面照片我看看。
        注意,排线长度不能太长;转接板上mipi信号要注意等长处理,阻抗匹配;应用环境的电磁干扰多不多?

        cheesefish 1 Reply Last reply Reply Quote 0
        • cheesefish
          cheesefish @veye_xumm last edited by

          @veye_xumm 非常感谢!👍
          确实是线太长了,换成短线后就没这个问题了!

          veye_xumm 1 Reply Last reply Reply Quote 0
          • veye_xumm
            veye_xumm @cheesefish last edited by

            @cheesefish 好的,不客气。

            1 Reply Last reply Reply Quote 0
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