RV1106手把手教你：使用ffmpeg、framebuffer在ST7735屏幕上播放bad apple

LitchiCheng

RV1106手把手教你：使用ffmpeg、framebuffer在ST7735屏幕上播放bad apple [复制链接]

 

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硬件接线

LED- ------- PICO-GND

LED+ ------- PICO-3.3V

RESX ------- PICO-PIN27

DCX ------- PICO-PIN26

SCL ------- PICO-PIN14

SDA ------- PICO-PIN15

VDDI ------- PICO-3.3V

VDD ------- PICO-3.3V

CSX ------- PICO-PIN12

 

未被复用的GPIO2_A2和A3用来做DCX和RESX，一个切换，一个是重置

 

内核、设备树配置

make ARCH=arm menuconfig

   

设备树增加spi节点的配置，同时设备树的位置luckfox-pico/sysdrv/source/kernel/arch/arm/boot/dts/rv1106g-luckfox-pico-pro-max.dts，

如下为改动的地方：

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

    /*LCD DC*/
    gpio2pa2:gpio2pa2 {
        compatible = "regulator-fixed";
        pinctrl-names = "default";
        pinctrl-0 = <&gpio2_pa2>;
        regulator-name = "gpio2_pa2";
        regulator-always-on;
    };

    /*LCD RESET*/
    gpio2pa3:gpio2pa3 {
        compatible = "regulator-fixed";
        pinctrl-names = "default";
        pinctrl-0 = <&gpio2_pa3>;
        regulator-name = "gpio2_pa3";
        regulator-always-on;
    };
};

&pinctrl {
    /*LCD DC*/
    gpio2-pa2 {
        gpio2_pa2:gpio2-pa2 {
            rockchip,pins = <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
        };
    };

    /*LCD RESET*/
    gpio2-pa3 {
        gpio2_pa3:gpio2-pa3 {
            rockchip,pins =    <2 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
        };
    };
};

// /**********SPI**********/
&spi0 {
    status = "okay";
    pinctrl-names = "default";
    pinctrl-0 = <&spi0m0_pins &spi0m0_cs0>;
    //cs-gpios = <&gpio1 RK_PC0 1>;
    // cs-gpios = <&gpio1 26 1>;
    #address-cells = <1>;
    #size-cells = <0>;
    //spidev@0 {
    //    compatible = "rockchip,spidev";
    //    spi-max-frequency = <50000000>;
    //    reg = <0>;
    //};

    st7735r@0{
        compatible = "sitronix,st7735r";
        reg = <0>;
        status = "okay";
        spi-max-frequency = <48000000>;
        dc = <&gpio2 RK_PA2 1>;
        reset = <&gpio2 RK_PA3 1>;
        rotation = <90>;
        spi-cpol;
        spi-cpha;
        fps = <30>;
        buswidth = <8>;
        rgb;
    };

};

更新boot.img，使用dmesg进行查看framebuffer设备是否启用

 

测试

使用ffmpeg输出bad apple到屏幕上

sudo ffmpeg -v 60 -i rotate-video-4.mp4 -pix_fmt rgb565le -f fbdev /dev/fb0

bad-apple-160x128.mp4 (5.92 MB, 下载次数: 19)

2024-2-25 18:35 上传

点击文件名下载附件
bad apple

  

 

 

视频讲解

 

 

 

Juggernaut

赞

LitchiCheng

Juggernaut 发表于 2024-3-4 19:00 赞

嘻嘻，继续努力

allenzhu0721

大佬，我想问下，按照你的DTS配置，我的/etc下面就是没有fb0是怎么回事？屏幕接的线不对，就不会显示fb0吗？