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    jetson nano 2GB无法识别相机 MV-MIPI-IMX264M

    Scheduled Pinned Locked Moved Jetson App Software
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    • H Offline
      hmj @veye_xumm
      last edited by

      This post is deleted!
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      • veye_xummV Offline
        veye_xumm @hmj
        last edited by

        @hmj 好哒，棒棒哒

        Questions will be answered as soon as possible, please be patient.
        如果你使用中文，请直接用中文提问。
        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

        H 1 Reply Last reply Reply Quote 0
        • H Offline
          hmj @veye_xumm
          last edited by

          @veye_xumm
          我需要一个C的开发手册, 方便开发应用,谢谢!

          veye_xummV 1 Reply Last reply Reply Quote 0
          • veye_xummV Offline
            veye_xumm @hmj
            last edited by

            @hmj 请参考这篇文章的part7和part8

            Questions will be answered as soon as possible, please be patient.
            如果你使用中文，请直接用中文提问。
            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

            H 2 Replies Last reply Reply Quote 0
            • H Offline
              hmj @veye_xumm
              last edited by

              @veye_xumm

              如果用作硬触发模式,如何设置,相机的曝光时间?

              veye_xummV 1 Reply Last reply Reply Quote 0
              • H Offline
                hmj @veye_xumm
                last edited by

                @veye_xumm
                v4l2-ctl --set-ctrl trigger_mode=1
                v4l2-ctl --set-ctrl trigger_src=1
                v4l2-ctl -d /dev/video0 --set-fmt-video=width=2432,height=2048,pixelformat=GREY --stream-mmap --stream-count=1 --stream-to=raw.raw

                我用gpio触发, 硬件链接没问题, 量到正常电平,但是并没有获取到图片,还需要哪些设置?

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                • veye_xummV Offline
                  veye_xumm @hmj
                  last edited by

                  @hmj 参考下面这个文章的ISP部分，可以配置自动曝光，手动曝光。如果是外触发模式，建议使用手动曝光模式，然后手动配置曝光时间和增益。
                  https://wiki.veye.cc/index.php/Mv_mipi_i2c.sh_user_guide#metime

                  Questions will be answered as soon as possible, please be patient.
                  如果你使用中文，请直接用中文提问。
                  May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                  H 1 Reply Last reply Reply Quote 0
                  • H Offline
                    hmj @veye_xumm
                    last edited by hmj

                    @veye_xumm
                    关于ROI, 有几个问题请教一下
                    1:X,Y,W,H中的W应该多少字节对齐合适? 全画面下文档建议是64x, X的起始位置应为多少字节对其合适?参考代码中是8
                    2:ROI重配置是否需要对/dev/video0设备关闭重新打开?
                    3:ROI的设置有2部分重叠, I2C那边有设置参数, V4L2也有设置参数.是否要重配置
                    如果我需一起哦截取的位置是 [256,256, 512,512] 那么V4L2那边的具体参数该怎么配置,从0,0开始(应为I2C已经配过了), 还是(256,256)开始?

                    veye_xummV 1 Reply Last reply Reply Quote 0
                    • veye_xummV Offline
                      veye_xumm @hmj
                      last edited by

                      @hmj

                      1. [y] [height] 的步长为 4，[width] 的步长为 8。

                        实际上在jetson平台上，建议width的步长为64.这样方便jetson主板收到数据之后对齐操作，也方便你应用层处理。

                      @hmj said in jetson nano 2GB无法识别相机 MV-MIPI-IMX264M:

                      2:ROI重配置是否需要对/dev/video0设备关闭重新打开?

                      不需要。

                      @hmj said in jetson nano 2GB无法识别相机 MV-MIPI-IMX264M:

                      3:ROI的设置有2部分重叠, I2C那边有设置参数, V4L2也有设置参数.是否要重配置

                      不需要重复设置。
                      如果你打开/dev/video0之前对camera做一系列配置，可以用脚本对摄像头进行一系列配置。然后打开/dev/video0，v4l2接口会得到新配置的参数。
                      另一个方法，也更简单一些。对于v4l2接口支持的参数，就直接用v4l2接口配置。不支持的用脚本配置即可。

                      @hmj said in jetson nano 2GB无法识别相机 MV-MIPI-IMX264M:

                      如果我需一起哦截取的位置是 [256,256, 512,512] 那么V4L2那边的具体参数该怎么配置,从0,0开始(应为I2C已经配过了), 还是(256,256)开始?

                      不管用什么配置方法，都正确传递[256,256, 512,512] 参数进去应该就可以的。

                      Questions will be answered as soon as possible, please be patient.
                      如果你使用中文，请直接用中文提问。
                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                      H 1 Reply Last reply Reply Quote 0
                      • H Offline
                        hmj @veye_xumm
                        last edited by hmj

                        @veye_xumm

                        假设jetson上电后得预配置时[0,0,2432,2048],正在正常按节奏取图,
                        这时UI 给了一个[128, 16, 1024, 256] 这么一个需求,
                        如何配置驱动,才能让用户无感无缝切换图片.
                        (配置时候,可以接受暂时停流, 不接受重启上层应用或重启jetson设备)

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                        • veye_xummV Offline
                          veye_xumm @hmj
                          last edited by

                          @hmj 你在你的程序里面，调用stop stream（VIDIOC_STREAMOFF），然后配置roi，然后重新start stream（VIDIOC_STREAMON）。

                          Questions will be answered as soon as possible, please be patient.
                          如果你使用中文，请直接用中文提问。
                          May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                          H 1 Reply Last reply Reply Quote 0
                          • H Offline
                            hmj @veye_xumm
                            last edited by

                            @veye_xumm
                            也就是说,在nano平台, 关于roi这组参数,可以忽略i2c层面配置,只有v4l那边配置就可以了?
                            这么做是真实硬件ROI, 会带来FPS得提升吧?

                            veye_xummV 1 Reply Last reply Reply Quote 0
                            • veye_xummV Offline
                              veye_xumm @hmj
                              last edited by

                              @hmj
                              I2c脚本和v4l2接口，本质上都是通过i2c配置了camera的寄存器。所以只需要v4l做了，就无需使用脚本配置。
                              是的，降低roi中的图像高度，会提升MAXFPS，你可以通过脚本获取当前配置下的max fps，然后配置fps到范围内的值。

                              Questions will be answered as soon as possible, please be patient.
                              如果你使用中文，请直接用中文提问。
                              May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                              H 1 Reply Last reply Reply Quote 0
                              • H Offline
                                hmj @veye_xumm
                                last edited by hmj

                                @veye_xumm
                                我现在又遇到一个问题,如果我把相机曝光设置为10000(2432*2048), 查询GET_FPS,帧率大约为38.84,那么帧周期为27902, 在此基础上用硬触发(周期为28000的脉冲,其中高电平维持10000,站空比为5:7)去拍, 比如发送10个脉冲, 那么只能收到5图,如果把触发周期改成34000以上, 那么10图都能接受到.

                                我现在需要保证相机尽量快速取图,哪边还需要再配置才能获地高速?

                                veye_xummV 1 Reply Last reply Reply Quote 0
                                • veye_xummV Offline
                                  veye_xumm @hmj
                                  last edited by

                                  @hmj 按照https://wiki.veye.cc/index.php/Mv_mipi_camera_manual/zh part2.4.3的描述，你的诉求应该是没有问题的。
                                  你先参考这个链接，升级一下固件：https://wiki.veye.cc/index.php/Mvcam_firmware_update_manual
                                  然后再做一下测试试试。

                                  Questions will be answered as soon as possible, please be patient.
                                  如果你使用中文，请直接用中文提问。
                                  May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                  H 1 Reply Last reply Reply Quote 0
                                  • H Offline
                                    hmj @veye_xumm
                                    last edited by

                                    @veye_xumm

                                    ./mv_mipi_i2c.sh -r -f version
                                    version is C 01.34 and L 02.00
                                    貌似已经是最新固件,与网站上6月5日是同一版, 无需再升级

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                                    • veye_xummV Offline
                                      veye_xumm @hmj
                                      last edited by

                                      @hmj https://wiki.veye.cc/index.php/Mv_mipi_i2c.sh_user_guide
                                      参考这个页面，把trigger相关的参数读出来一下，发给我看看。
                                      trgnum
                                      trginterval
                                      trgdelay
                                      trgedge
                                      trgfilter_enable
                                      trgfilter_time
                                      trgexp_delay
                                      trgcount

                                      Questions will be answered as soon as possible, please be patient.
                                      如果你使用中文，请直接用中文提问。
                                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                      H 1 Reply Last reply Reply Quote 0
                                      • H Offline
                                        hmj @veye_xumm
                                        last edited by

                                        @veye_xumm said in jetson nano 2GB无法识别相机 MV-MIPI-IMX264M:

                                        trgcount

                                        pt@dpt-desktop:./mv_mipi_i2c.sh -r -f version
                                        version is C 01.34 and L 02.00
                                        dpt@dpt-desktop: ./mv_mipi_i2c.sh -r -f trgnum
                                        r trigger num is 1
                                        dpt@dpt-desktop: ./mv_mipi_i2c.sh -r -f trginterval
                                        r trginterval is 0
                                        dpt@dpt-desktop:./mv_mipi_i2c.sh -r -f trgdelay
                                        r trgdelay is 0
                                        dpt@dpt-desktop:./mv_mipi_i2c.sh -r -f trgedge
                                        r trg edge is 0
                                        dpt@dpt-desktop: ./mv_mipi_i2c.sh -r -f trgfilter_enable
                                        r trgfilter enable is 0
                                        dpt@dpt-desktop: ./mv_mipi_i2c.sh -r -f trgfilter_time
                                        r trgfilter time is 1 us
                                        dpt@dpt-desktop:./mv_mipi_i2c.sh -r -f trgexp_delay
                                        r trigger exposure delay is 0 us
                                        dpt@dpt-desktop:./mv_mipi_i2c.sh -r -f trgcount
                                        r trigger count 156, trigger lost 0

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                                        • veye_xummV Offline
                                          veye_xumm @hmj
                                          last edited by

                                          @hmj 你现在读取一下fps和maxfps，分别是多少？

                                          Questions will be answered as soon as possible, please be patient.
                                          如果你使用中文，请直接用中文提问。
                                          May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                          H 2 Replies Last reply Reply Quote 0
                                          • H Offline
                                            hmj @veye_xumm
                                            last edited by

                                            @veye_xumm
                                            ./mv_mipi_i2c.sh -r -f maxfps
                                            r maxfps @ current setting is 35.84 fps
                                            ./mv_mipi_i2c.sh -r -f fps
                                            r fps is 30.00 fps

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