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    SOLVED 相机驱动

    VEYE MIPI camera
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    • L
      lin last edited by

      相机采集图像节点设置为video0可以正常运行,设置为video22则通过ioctl(m_fd, VIDIOC_S_FMT, &fmt) < 0,设置小于0,这是为什么?
      330fd5e2-1345-405a-8c3d-88462f806e2b-image.png
      af1575d3-7c23-4b11-acf4-c9533cbe4fd5-image.png

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        lin @lin last edited by

        @lin video22不支持GREY格式,怎么获取经过isp处理后的相机图像呢?该节点的分辨率是多少,直接用v4l2-ctl -d /dev/video22 --set-fmt-video=width=1920,height=1200,pixelformat=NV12 --stream-mmap --stream-count=1 --stream-to=y8.raw无法获取到图像,阻塞住了

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

          @lin 相机是什么,主板是什么

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            lin @veye_xumm last edited by

            @veye_xumm 主板roc-3588s-pc,相机是AR0234M

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

              @lin 这个现在不支持isp_mainpath.

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              • L
                lin last edited by

                那无法获取到经过isp处理后的图像吗?

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

                  @lin ar0234是黑白的sensor,你可以直接使用sensor输出的图像做算法计算即可。

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                    lin @veye_xumm last edited by

                    @veye_xumm好的

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                      lin last edited by

                      5e02f1ec-9b2f-48b6-a6c4-a64680a91dd2-image.png
                      af23b8cc-024a-4319-9a88-6f9adc49d132-image.png 请问,这种情况是因为设备树有问题,还是驱动需要更改呢?

                      &i2c7 {
                      status = "okay";
                      clock-frequency = <400000>;//?

                      cam3_ar0234m_3b: cam3_ar0234m@3b {
                          compatible = "veye1,mvcam1";
                          status = "okay";
                          reg = <0x3b>;
                      
                          clocks = <&ext_cam_clk>;//?
                          clock-names = "xclk";
                          clock-frequency = <24000000>;//?
                      
                          enable-gpios = <&extio EXTIO_GPIO_P05 GPIO_ACTIVE_HIGH>;
                          reset-gpios = <&extio EXTIO_GPIO_P04 GPIO_ACTIVE_LOW>;
                          rockchip,camera-module-index = <0>;
                          rockchip,camera-module-facing = "back";
                          rockchip,camera-module-name = "NC";
                          rockchip,camera-module-lens-name = "NC";
                          port {
                              cam3_ar0234m_3b_out: endpoint {
                                  remote-endpoint = <&mipi_in_ucam3_3b>;
                                  data-lanes = <1 2>;
                              };
                          };
                      };
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                        lin @lin last edited by

                        @lin fa17f74b-04e8-4ebb-9b58-e903ff8a3cb5-image.png 这个函数报错cfda272c-806a-409c-a6a7-089b58d467f0-image.png

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

                          @lin 如果i2c用的总线没有配置错误,需要检查一下硬件连接是否正确,比如供电、fpc排线方向、poweron那个pin的配置。

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                            lin @veye_xumm last edited by

                            @veye_xumm 09cab23d-b212-4d88-9720-5044a9e191fe-6bc9afde4424ec08acfc689902c206d5.jpg [图片]没有用到power on引脚

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                              lin @lin last edited by

                              @lin 0a4117cc-8f57-4c69-a2cb-98a7eb47faba-image.png 开发板csi接口,上面是我们自己画的一个转接板

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

                                @lin 我们相机的i2c是3.3V电平标准,不知你原理图上有没有做电平转换?

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                                  lin @veye_xumm last edited by

                                  @veye_xumm enable线外接的底板是1.8v能触发工作吗

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                                    lin @lin last edited by

                                    @lin i2c 、vcc都做了电平转换为3.3v。enable端不做电平转换直接由底板(1.8V)引出连接给相机,会导致无法正常工作吗?最低要求电压是多少?用i2cdetect -y 7检测不到设备
                                    93a5a509-e3b1-4b64-a51a-f524f7a66c5e-image.png

                                    veye_xumm L 2 Replies Last reply Reply Quote 0
                                    • veye_xumm
                                      veye_xumm @lin last edited by veye_xumm

                                      @lin
                                      334fbe86-1034-41ae-9437-0f41f32c8ba3-image.png
                                      我们的SYS_RSTn对应的是你的17,现在是NC的,我们内部有上拉,这样i2c应该直接就是通的。你是接到i2c-7上了吗?另外,你的fpc线方向有没有插反了?

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                                        lin @veye_xumm last edited by

                                        @veye_xumm !是i2c7

                                        e8f962cc-2cc4-48f2-9008-1621852c68f3-image.png

                                        @lin said in 相机驱动:

                                        @lin 0a4117cc-8f57-4c69-a2cb-98a7eb47faba-image.png 开发板csi接口,上面是我们自己画的一个转接板

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                                          lin @lin last edited by

                                          @lin poweron这个引脚在哪里,相机给出的22个引脚中没有

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

                                            @lin

                                            @lin said in 相机驱动:

                                            poweron这个引脚在哪里,相机给出的22个引脚中没有
                                            不好意思,我之前说的就是SYS_RSTn引脚的意思。

                                            拍一下你硬件连接的照片我看看。

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