LCD-外设

发布时间 2023-12-22 14:59:18作者: Charles_hui

1*.LCD接口引脚分析

  • 1.1先上代码
点击查看代码
&lcdif {
	display0: display {
		bits-per-pixel = <16>;
		bus-width = <24>;

		display-timings {
			native-mode = <&timing0>;
			timing0: timing0 {
			clock-frequency = <35000000>;/*35000000*/
			hactive = <720>;
			vactive = <720>;
			hfront-porch = <46>;
			hback-porch = <44>;
			hsync-len = <2>;
			vback-porch = <16>;
			vfront-porch = <50>;
			vsync-len = <5>;

			hsync-active = <0>;
			vsync-active = <0>;
			de-active = <1>;
			pixelclk-active = <1>;
			};
		};
	};
};
  • 1.2水平同步时钟 HSYNC
    HSYNC水平同步信号,表示一行数据的开始