luckfox-pico-ultra w 开发板连接3.5寸屏不显示

• ktls2025

  Posts: 9

  Joined: 2025-03-17 9:09

  2025-05-16 6:46

  老师，你好，我用ultry w 开发板连接我自己的3.5寸屏，只有背光亮但是不显示，开机Log中出现rockchip-rgb ff000000.syscon:rgb: [drm:rockchip_rgb_bind] *ERROR* failed to find panel or bridge: -517 错误。
  下面是dts 中panel 节点描述，附件是显示屏和驱动IC规格书。请教老师如何解决？谢谢
  panel: panel {
  compatible = "simple-panel";
  backlight = <&backlight>;
  
  reset-gpios = <&gpio0 RK_PA1 GPIO_ACTIVE_LOW>;
  reset-delay-ms = <200>;
  status = "okay";
  
  bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
  width-mm = <85>;
  height-mm = <85>;
  
  display-timings {
  native-mode = <&timing0>;
  
  timing0: timing0 {
  clock-frequency = <30000000>;
  hactive = <480>; //<720>;
  vactive = <800>; //<720>;
  hback-porch = <40>;
  hfront-porch = <40>;
  vback-porch = <20>;
  vfront-porch = <20>;
  hsync-len = <20>;
  vsync-len = <12>;
  hsync-active = <0>;
  vsync-active = <0>;
  de-active = <0>;
  pixelclk-active = <0>;
  };
  };
  
  port {
  panel_in_rgb: endpoint {
  remote-endpoint = <&rgb_out_panel>;
  };
  };
  };

  Attachments

  ST7701S_SPEC_Preliminary V0.1.pdf (3.77 MiB)

  Downloaded 75 times

  HD35046C40规格书.pdf (969.17 KiB)

  Downloaded 134 times

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