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How can i configure 2 mcp2518 chips on pico mini b?

http://forums.luckfox.com/viewtopic.php?t=1330

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Re: How can i configure 2 mcp2518 chips on pico mini b?

Posted: 2025-04-10 3:44
by yeisonint
Can you share your final DTS?, i'm still have problems

Re: How can i configure 2 mcp2518 chips on pico mini b?

Posted: 2025-05-13 20:17
by DhSufi
yeisonint wrote: ↑2025-04-10 3:44 Can you share your final DTS?, i'm still have problems
Yes of course.

This is the file "rv1106g-luckfox-pico-pro.dts"

Code: Select all

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2022 Rockchip Electronics Co., Ltd.
 */

/dts-v1/;

#include "rv1106.dtsi"
#include "rv1106-evb.dtsi"
#include "rv1106-luckfox-pico-pro-max-ipc.dtsi"

/ {
	model = "Luckfox Pico Pro";
	compatible = "rockchip,rv1103g-38x38-ipc-v10", "rockchip,rv1106";
};

/**********FLASH**********/
&sfc {
	status = "okay";
	flash@0 {
		compatible = "spi-nand";
		reg = <0>;
		spi-max-frequency = <75000000>;
		spi-rx-bus-width = <4>;
		spi-tx-bus-width = <1>;
	};
};

/**********SDMMC**********/
&sdmmc {
	max-frequency = <50000000>;
	no-sdio;
	no-mmc;
	bus-width = <4>;
	cap-mmc-highspeed;
	cap-sd-highspeed;
	disable-wp;
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_det &sdmmc0_bus4>;
	status = "okay";
};

/**********ETH**********/
&gmac {
	status = "okay";
};

/**********USB**********/
&u2phy {
	status = "okay";
};

&u2phy_otg {
	rockchip,dis-u2-susphy;
	status = "okay";
};

&usbdrd {
	status = "okay";
};

&usbdrd_dwc3 {
	status = "okay";
	dr_mode = "peripheral";
};

/**********SPI**********/
&spi0 {
	status = "okay";
	spidev@0 {
		spi-max-frequency = <50000000>;
	};
  fbtft@0 {
		spi-max-frequency = <50000000>;
  };
};








/**********I2C**********/
/* I2C3_M1 */
&i2c3 {
	status = "disabled";
	clock-frequency = <100000>;
};
/* I2C1_M1 */
&i2c1 {
	status = "disabled";
	clock-frequency = <100000>;
};


/**********UART**********/
/* UART3_M1 */
&uart3 {
	status = "disabled";
};

/* UART4_M1 */
&uart4 {
	status = "disabled";
};

/**********RTC**********/
&rtc {
	status = "okay";
};

And this is the file "rv1106-luckfox-pico-pro-max-ipc.dtsi"

Code: Select all

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2022 Rockchip Electronics Co., Ltd.
 */
#include "rv1106-amp.dtsi"

/ {
	chosen {
		bootargs = "earlycon=uart8250,mmio32,0xff4c0000 console=ttyFIQ0 root=/dev/mmcblk1p7 rootwait snd_soc_core.prealloc_buffer_size_kbytes=16 coherent_pool=0";
	};

	acodec_sound: acodec-sound {
		compatible = "simple-audio-card";
		simple-audio-card,name = "rv-acodec";
		simple-audio-card,format = "i2s";
		simple-audio-card,mclk-fs = <256>;
		simple-audio-card,cpu {
			sound-dai = <&i2s0_8ch>;
		};
		simple-audio-card,codec {
			sound-dai = <&acodec>;
		};
	};

	vcc_1v8: vcc-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "vcc_1v8";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};

	vcc_3v3: vcc-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "vcc_3v3";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	vdd_arm: vdd-arm {
		compatible = "regulator-fixed";
		regulator-name = "vdd_arm";
		regulator-min-microvolt = <800000>;
		regulator-max-microvolt = <1000000>;
		regulator-init-microvolt = <900000>;
		regulator-always-on;
		regulator-boot-on;
	};
	leds: leds {
		compatible = "gpio-leds";
		work_led: work{
			gpios = <&gpio3 RK_PC6 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "activity";
			default-state = "on";
		};	
	};

	// DHT11
	dht11_sensor {
		compatible = "dht11";
		pinctrl-names = "default";
		pinctrl-0 = <&gpio1_pc7>;
		dht11@1 {
			gpios = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>;
			label = "dht11";
			linux,default-trigger = "humidity";
		};
	};


	can0: mcp2515@0 {
		compatible = "microchip,mcp2515";
		reg = <0 0>;
		clocks = <&clk_mcp2515>;
		clock-names = "mcp2515";
		spi-max-frequency = <10000000>;
		interrupt-parent = <&gpio1>;
		interrupts = <RK_PC7 IRQ_TYPE_LEVEL_LOW>;
		vdd-supply = <&vcc_3v3>;
		xceiver-supply = <&vcc_3v3>;
	};

	clk_mcp2515: clk_mcp2515 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <16000000>;
	};
};

/***************************** AUDIO ********************************/
&i2s0_8ch {
	#sound-dai-cells = <0>;
	status = "okay";
};

&acodec {
	#sound-dai-cells = <0>;
	pa-ctl-gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
	status = "okay";
};
/***************************** CPU ********************************/
&cpu0 {
	cpu-supply = <&vdd_arm>;
};

/***************************** ADC ********************************/
&saradc {
	status = "okay";
	vref-supply = <&vcc_1v8>;
};

&tsadc {
	status = "okay";
};

/***************************** CSI ********************************/
&csi2_dphy_hw {
	status = "okay";
};

&csi2_dphy0 {
	status = "okay";

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

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

			csi_dphy_input0: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&sc3336_out>;
				data-lanes = <1 2>;
			};

			csi_dphy_input1: endpoint@1 {
				reg = <1>;
				remote-endpoint = <&sc4336_out>;
				data-lanes = <1 2>;
			};

			csi_dphy_input2: endpoint@2 {
				reg = <2>;
				remote-endpoint = <&sc530ai_out>;
				data-lanes = <1 2>;
			};
		};

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

			csi_dphy_output: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&mipi_csi2_input>;
			};
		};
	};
};

&i2c4 {
	status = "okay";
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&i2c4m2_xfer>;

	sc3336: sc3336@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_out0>;
		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_out: endpoint {
				remote-endpoint = <&csi_dphy_input0>;
				data-lanes = <1 2>;
			};
		};
	};

	sc4336: sc4336@30 {
		compatible = "smartsens,sc4336";
		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_out0>;
		rockchip,camera-module-index = <0>;
		rockchip,camera-module-facing = "back";
		rockchip,camera-module-name = "OT01";
		rockchip,camera-module-lens-name = "40IRC_F16";
		port {
			sc4336_out: endpoint {
				remote-endpoint = <&csi_dphy_input1>;
				data-lanes = <1 2>;
			};
		};
	};

	sc530ai: sc530ai@30 {
		compatible = "smartsens,sc530ai";
		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_out0>;
		rockchip,camera-module-index = <0>;
		rockchip,camera-module-facing = "back";
		rockchip,camera-module-name = "CMK-OT2115-PC1";
		rockchip,camera-module-lens-name = "30IRC-F16";
		port {
			sc530ai_out: endpoint {
				remote-endpoint = <&csi_dphy_input2>;
				data-lanes = <1 2>;
			};
		};
	};
};

&mipi0_csi2 {
	status = "okay";

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

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

			mipi_csi2_input: endpoint@1 {
				reg = <1>;
				remote-endpoint = <&csi_dphy_output>;
			};
		};

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

			mipi_csi2_output: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&cif_mipi_in>;
			};
		};
	};
};

&rkcif {
	status = "okay";
};

&rkcif_mipi_lvds {
	status = "okay";

	pinctrl-names = "default";
	pinctrl-0 = <&mipi_pins>;
	port {
		/* MIPI CSI-2 endpoint */
		cif_mipi_in: endpoint {
			remote-endpoint = <&mipi_csi2_output>;
		};
	};
};

&rkcif_mipi_lvds_sditf {
	status = "okay";

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

&rkisp {
	status = "okay";
};

&rkisp_vir0 {
	status = "okay";

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


/*****************************PINCTRL********************************/
// SPI
&spi0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&spi0m0_clk &spi0m0_miso &spi0m0_mosi &spi0m0_cs0>;

	mcp2515@0 {
		compatible = "microchip,mcp2515";
		reg = <0 0>;
		spi-max-frequency = <10000000>;
		interrupts = <RK_PC7 IRQ_TYPE_LEVEL_LOW>;
		interrupt-parent = <&gpio1>;
		clocks = <&clk_mcp2515>;
		clock-names = "mcp2515";
	};
};
// I2C
&i2c0 {
	pinctrl-0 = <&i2c0m2_xfer>;
};

&i2c1 {
	pinctrl-0 = <&i2c1m1_xfer>;
};

&i2c3 {
	pinctrl-0 = <&i2c3m1_xfer &i2c3m0_xfer>;
};

// &i2c4 {
//  pinctrl-0 = <&i2c4m0_xfer>;
// };

// UART
&uart0 {
	pinctrl-0 = <&uart0m0_xfer &uart0m1_xfer>;
};
&uart1 {
	pinctrl-0 = <&uart1m1_xfer>;
};
&uart3 {
	pinctrl-0 = <&uart3m1_xfer>;
};
&uart4 {
	pinctrl-0 = <&uart4m1_xfer>;
};
&uart5 {
	pinctrl-0 = <&uart5m0_xfer>;
};

// PWM
&pwm0 {
	pinctrl-0 = <&pwm0m1_pins>;
};
&pwm2 {
	pinctrl-0 = <&pwm2m2_pins>;
};
&pwm3 {
	pinctrl-0 = <&pwm3m2_pins>;
};
&pwm4 {
	pinctrl-0 = <&pwm4m2_pins>;
};
&pwm5 {
	pinctrl-0 = <&pwm5m2_pins>;
};
&pwm6 {
	pinctrl-0 = <&pwm6m1_pins &pwm6m2_pins>;
};
&pwm8 {
	pinctrl-0 = <&pwm8m1_pins>;
};
&pwm9 {
	pinctrl-0 = <&pwm9m1_pins>;
};
&pwm10 {
	pinctrl-0 = <&pwm10m1_pins &pwm10m2_pins>;
};
&pwm11 {
	pinctrl-0 = <&pwm11m1_pins>;
};

&pinctrl {
	spi0 {
		spi0m0_clk: spi0m0-clk {
			rockchip,pins = <1 RK_PC1 4 &pcfg_pull_none>;
		};
		spi0m0_mosi: spi0m0-mosi {
			rockchip,pins = <1 RK_PC2 6 &pcfg_pull_none>;
		};
		spi0m0_miso: spi0m0-miso {
			rockchip,pins = <1 RK_PC3 6 &pcfg_pull_none>;
		};
		spi0m0_cs0: spi0m0-cs0 {
			rockchip,pins = <1 RK_PC0 4 &pcfg_pull_none>;
		};
	};

    gpio1-pc7 {
        gpio1_pc7:gpio1-pc7 {
            rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
    };
	};
};
Please pay attention to the settings values. In my case my MCP2515 module is 16mhz. The same with the pins of your luckfox pico pro you are using. Hope it helps
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