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    SOLVED RAW-MIPI-AR0234M配置为4lane模式

    Machine Vision camera
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    • veye_xumm
      veye_xumm @lizi last edited by

      @lizi 如此说来确实有这个问题。我们主要提供好驱动,opencv不是很熟。
      你用jetson平台,最好还是用带jetson的硬件加速的开发包去开发。比如CUDA之类。
      我们应用层和算法都不太熟悉。你可以到英伟达的开发者网站上找找资料。

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        lizi @veye_xumm last edited by

        @veye_xumm 那有没有办法用v4l2-ctl --set-fmt-video=width=$WIDTH,height=$HEIGHT,pixelformat=GREY --stream-mmap --stream-count=-1 --stream-to=/dev/null这个捕获帧的方法去捕获图片啊,这个获取的图片是raw格式的吗?

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

          @lizi
          我测了一下orin nano上面,实际采集数据的帧率是没有问题的。 你可以延长你的代码的统计时间到10秒,100秒,可以发现帧率会趋近于接近60fps。

          那么为何出现你只统计1秒的时候,帧率只有20帧的结果呢? 我进行了一下简单的时间分析,发现是第一次调用cap.read()函数的时候,耗时大约半秒左右。(估计是底层进行buffer的初始化之类的操作。)

          可以参考我贴上来这个代码:

          import cv2
          import argparse
          import subprocess
          import time
          
          def main():
              # Set up command-line argument parser
              parser = argparse.ArgumentParser(description='Real-time display of GREY image from /dev/video0')
              parser.add_argument('--roix', type=int, default=0, help='roi start x (default: 0)')
              parser.add_argument('--roiy', type=int, default=0, help='roi start y (default: 0)')
              parser.add_argument('--width', type=int, default=1920, help='image width (default: 640)')
              parser.add_argument('--height', type=int, default=1200, help='image height (default: 480)')
              parser.add_argument('--fps', type=int, default=60, help='frame rate (default: 30)')
              args = parser.parse_args()
              
              v4l2_cmd = f"v4l2-ctl --set-ctrl roi_x={args.roix}"
              subprocess.run(v4l2_cmd, shell=True)
              
              v4l2_cmd = f"v4l2-ctl --set-ctrl roi_y={args.roiy}"
              subprocess.run(v4l2_cmd, shell=True)
              
              v4l2_cmd = f"v4l2-ctl --set-fmt-video=width={args.width},height={args.height}"
              subprocess.run(v4l2_cmd, shell=True)
              
              v4l2_cmd = f"v4l2-ctl --set-ctrl frame_rate={args.fps}"
              subprocess.run(v4l2_cmd, shell=True)
              
              # Open the /dev/video0 device
              cap = cv2.VideoCapture('/dev/video0')
              if not cap.isOpened():
                  print("Failed to open video device")
                  return
          
              # Set the image size
              cap.set(cv2.CAP_PROP_FRAME_WIDTH, args.width)
              cap.set(cv2.CAP_PROP_FRAME_HEIGHT, args.height)
          
              frame_num = 0
              
              # Loop over frames and display them
              while True:
                  # Read a frame
                  ret, frame = cap.read()
                  # Check if reading was successful
                  if ret:
                      if frame_num == 0:
                          time_start = time.perf_counter()
                      frame_num += 1
                      # Display the frame
                      # cv2.imshow('VEYE MV camera GREY image preview', frame)
                      print(f"Success save , {frame_num}")
                  else:
                      print("Failed to read frame")
                      #break
          
                  time_end = time.perf_counter()
                  time_ms = (time_end - time_start)*1000
                  print(time_ms)
                  if time_ms > 1000:
                      print(frame_num)
                      break
          
                  # Exit if 'q' key is pressed
                  if cv2.waitKey(1) & 0xFF == ord('q'):
                      break
          
              # Release resources
              cap.release()
              cv2.destroyAllWindows()
          
          if __name__ == '__main__':
              main()
          
          
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          • L
            lizi @veye_xumm last edited by

            @veye_xumm 好的

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            • L
              lizi @lizi last edited by lizi

              @veye_xumm 想问一下这里的曝光时间只有读取,没有写入的吗?设置曝光时间的命令是在哪里呢?在i2c.sh里截屏2024-01-23 12.10.07.png已经找到了

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

                @lizi
                请参考一下这个链接的part4.1

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

                  This post is deleted!
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                  • L
                    lizi last edited by lizi

                    @veye_xumm 截屏2024-01-23 16.22.05.png
                    安装驱动出现这个错是为什么。板子是orin-nano 8gb ,然后mipi是ar0234

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

                      @lizi i2c不通,你查查硬件连接,比如fpc排线方向。

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                        lizi @veye_xumm last edited by lizi

                        @veye_xumm
                        截屏2024-01-23 17.24.22.png
                        这是两边的插线方向。这个是对的吗orin-nano的有数据的线朝外侧,mipi有数据的线朝下方
                        截屏2024-01-23 17.04.52.png
                        我参考这个来安装的

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                        • L
                          lizi @lizi last edited by

                          @veye_xumm 还是有这个问题,这个是说明驱动式成功安装了是吗?只是硬件上的传输有问题吗

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

                            @lizi 看起来是正确的。 这套硬件上面,你试过我们标准的2lane模式的驱动吗?

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                              lizi @veye_xumm last edited by lizi

                              @veye_xumm 目前是没改dts的。就是默认的dts。之前在树莓派上安装了驱动测试是没问题的。

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

                                @lizi 你用的orin板子上是多少pin的fpc座子啊?

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                                  lizi @veye_xumm last edited by

                                  @veye_xumm 22pin的

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                                  • L
                                    lizi @veye_xumm last edited by lizi

                                    @veye_xumm https://wiki.veye.cc/index.php/VEYE_CS_Camera_for_Jetson_TX2/zh#.E6.9B.B4.E6.96.B0Jetson_Nano.2C_Jetson_TX2.EF.BC.8CTX2_NX.2C_AGX_Xavier.E5.92.8CXavier_NX.E7.B3.BB.E7.BB.9F。 驱动的安装我是按照这里的3.5.5 安装modules(适用于Jetpack5.x)来安装的

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

                                      @lizi

                                      @lizi said in RAW-MIPI-AR0234M配置为4lane模式:

                                      安装驱动出现这个错是为什么。板子是orin-nano 8gb ,然后mipi是ar0234
                                      49724792-bcdd-4ebb-ad0d-1c74b05aec96-image.png

                                      按照你这个提示,驱动安装没问题。但是硬件不通。所以我让找硬件问题。

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                                        lizi @veye_xumm last edited by

                                        @veye_xumm 刚刚我又把mipi放到树莓派上了。树莓派是正常的。但是在jetson上就还是出现那个问题。那如果不是排线方向的问题,还可能是什么硬件上的问题吗?
                                        截屏2024-01-23 18.18.40.png

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

                                          @lizi 可能是你的板子坏了,也有可能是你板子上的i2c不是9 和 10。你最好问问你板子的供应商这个i2c扩展功能是不是跟官方的开发板一致。

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                                            lizi @veye_xumm last edited by

                                            @veye_xumm

                                            @veye_xumm said in RAW-MIPI-AR0234M配置为4lane模式:

                                            i2c不是9 和 10

                                            我使用的英伟达是创乐博的,然后他这里写的CSI摄像头是有,2个MIPI CSI-2 D-PHY 通道。这个是支持的吗

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