Luckfox Pico Ultra W的开发板camera模块i2c管脚配置选择

2024-10-09 9:02

你好，想问一下，从上图来看，Luckfox Pico Ultra W的开发板camera模块，配置的外接管脚应该是 I2C4_SCL_M2和I2C4_SDA_M2，可以启动的摄像头是sc3336，考虑到以后布线的问题，现在想修改控制的i2c管脚，该怎么修改一下呢

2024-10-10 1:52

您好，硬件布线相关的修改我们不提供相关的技术支持，修改控制的i2c引脚保证电平标准（1.8V）一致后参考设备树修改即可

2024-10-10 7:02

Crocodile wrote: ↑2024-10-10 1:52 您好，硬件布线相关的修改我们不提供相关的技术支持，修改控制的i2c引脚保证电平标准（1.8V）一致后参考设备树修改即可

你好，现在就是想问问参考设备树修改管脚的地方，譬如说，配置的控制外接管脚现在是 I2C4_SCL_M2和I2C4_SDA_M2，接收通道的外接管脚是LVDS_D0_P、LVDS_D0_N、LVDS_D1_P、LVDS_D1_N，改成控制外接管脚i2c3，接收通道改成LVDS_D2_P、LVDS_D2_N、LVDS_D3_P、LVDS_D3_N

2024-10-10 8:10

这个就需要您自行验证了，我们仅做过基于luckfox pico的测试，这里提供一份参考rockchip官方双摄设备树修改下来的基于dphy2的设备树配置，不能保证一定能顺利运行以官方手册为准

Code: Select all

&csi2_dphy_hw {
	status = "okay";
};

&csi2_dphy2 {
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			#address-cells = <1>;
			#size-cells = <0>;

			csi_dphy2_input2: endpoint@2 {
				reg = <2>;
				remote-endpoint = <&sc3336_1_out>;
				data-lanes = <1 2>;
			};

		};

		port@1 {
			reg = <1>;
			#address-cells = <1>;
			#size-cells = <0>;

			csi_dphy_output1: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&mipi1_csi2_input>;
			};
		};
	};
};

&i2c3 {
	status = "okay";
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&i2c3m2_xfer>;

	sc3336_1: sc3336_1@30 {
		compatible = "smartsens,sc3336";
		status = "okay";
		reg = <0x30>;
		clocks = <&cru MCLK_REF_MIPI0>;
		clock-names = "xvclk";
		pwdn-gpios = <&gpio3 RK_PC5 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&mipi_refclk_out1>;
		rockchip,camera-module-index = <0>;
		rockchip,camera-module-facing = "back";
		rockchip,camera-module-name = "CMK-OT2119-PC1";
		rockchip,camera-module-lens-name = "30IRC-F16";
		port {
			sc3336_1_out: endpoint {
				remote-endpoint = <&csi_dphy2_input2>;
				data-lanes = <1 2>;
			};
		};
	};
};

&mipi1_csi2 {
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@0 {
			reg = <0>;
			#address-cells = <1>;
			#size-cells = <0>;

			mipi1_csi2_input: endpoint@1 {
				reg = <1>;
				remote-endpoint = <&csi_dphy_output1>;
			};
		};

		port@1 {
			reg = <1>;
			#address-cells = <1>;
			#size-cells = <0>;

			mipi1_csi2_output: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&cif_mipi_in1>;
			};
		};
	};
};

&rkcif {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&mipi_pins>;
};

&rkcif_mipi_lvds_sditf {
	status = "okay";

	port {
		/* MIPI CSI-2 endpoint */
		mipi_lvds_sditf: endpoint {
			remote-endpoint = <&isp_in>;
		};
	};
};

&rkcif_mipi_lvds1 {
	status = "okay";

	port {
		/* MIPI CSI-2 endpoint */
		cif_mipi_in1: endpoint {
			remote-endpoint = <&mipi1_csi2_output>;
		};
	};
};

&rkisp {
	status = "okay";
};

&rkisp_vir0 {
	status = "okay";

	port@0 {
		isp_in: endpoint {
			remote-endpoint = <&mipi_lvds_sditf>;
		};
	};
};