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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/bringup/bringup-rgb-display-config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">RGB</h1><div class="date inPage">13 Dec 2024</div><div style="color: gray;">
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Read time: 4 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="bringup_rgbDisplayConfig__section_pwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_pwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">配置 Uboot </h2>
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<div class="- topic/p p" data-ofbid="d327600e27__20250121171831">在 Luban 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make um</span>，进入 uboot
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的功能配置界面，使能显示模块驱动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_bcr_zzb_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_bcr_zzb_d1c">Device Drivers
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Graphics support
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ArtInChip Graphics --->
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[*] Enable ArtInChip Video Support
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[*] ArtInChip display rgb support
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[ ] ArtInChip display lvds support
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[ ] ArtInChip display mipi-dsi support
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<*> ArtInChip Panel Drivers (ArtInChip general RGB panel) --->
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</pre></div>
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</section><section class="- topic/section section" id="bringup_rgbDisplayConfig__section_rwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_rwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">配置 Kernel </h2>
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<p class="- topic/p p" data-ofbid="d327600e40__20250121171831">在 Luban 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make km</span>，进入 Kernel 的功能配置界面，使能显示模块驱动：</p>
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_swf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_swf_vzb_d1c">Device Drivers
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Graphics support
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ArtInChip Graphics --->
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<*> ArtInChip Framebuffer support
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[*] ArtInChip display rgb support
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[ ] ArtInChip display lvds support
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[ ] ArtInChip display mipi-dsi support
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<*> ArtInChip Panel Drivers (ArtInChip general RGB panel) --->
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</pre>
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</section><section class="- topic/section section" id="bringup_rgbDisplayConfig__section_twf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_twf_vzb_d1c"><h2 class="- topic/title title sectiontitle">uboot
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dts</h2><p class="- topic/p p" data-ofbid="d327600e52__20250121171831">Uboot
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如果要进行显示，则声明相应的配置为预加载，以 <span class="+ topic/ph sw-d/filepath ph filepath">demo88_nand</span> 工程为例，文件为
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<span class="+ topic/ph sw-d/filepath ph filepath">target/d211/demo88_nand/board-u-boot.dtsi</span></p><strong class="+ topic/ph hi-d/b ph b">声明通路</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_uwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_uwf_vzb_d1c">&disp {
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u-boot,dm-pre-reloc;
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fb0: fb@<span class="hl-number">0</span> {
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u-boot,dm-pre-reloc;
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port {
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fb0_out: endpoint {
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u-boot,dm-pre-reloc;
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}
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};
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};
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};
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&de0 {
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u-boot,dm-pre-reloc;
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port@<span class="hl-number">0</span> {
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de0_in: endpoint {
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u-boot,dm-pre-reloc;
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};
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};
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port@<span class="hl-number">1</span> {
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de0_out: endpoint {
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u-boot,dm-pre-reloc;
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};
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};
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};
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&rgb0 { <em class="hl-comment">//RGB</em>
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u-boot,dm-pre-reloc;
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port@<span class="hl-number">0</span> {
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rgb0_in: endpoint {
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u-boot,dm-pre-reloc;
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};
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};
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port@<span class="hl-number">1</span> {
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rgb0_out: endpoint {
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u-boot,dm-pre-reloc;
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};
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};
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};
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</pre><strong class="+ topic/ph hi-d/b ph b">声明屏幕参数</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_vwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_vwf_vzb_d1c">panel_rgb {
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u-boot,dm-pre-reloc;
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port {
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panel_rgb_in: endpoint {
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u-boot,dm-pre-reloc;
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};
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};
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display-timings {
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u-boot,dm-pre-reloc;
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timing0: <span class="hl-number">1024</span>x600 {
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u-boot,dm-pre-reloc;
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};
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};
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};</pre><strong class="+ topic/ph hi-d/b ph b">声明屏幕引脚</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_wwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_wwf_vzb_d1c">lcd_rgb565_ld_pins: lcd-<span class="hl-number">1</span> {
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u-boot,dm-pre-reloc;
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pins {
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u-boot,dm-pre-reloc;
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};
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};</pre></section><section class="- topic/section section" id="bringup_rgbDisplayConfig__section_xwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_xwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">系统 dts</h2>
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<div class="- topic/p p" data-ofbid="d327600e80__20250121171831">系统的 dts 将进行完整的功能配置，以 <span class="+ topic/ph sw-d/filepath ph filepath">demo88_nand</span> 工程为例，文件为<span class="+ topic/ph sw-d/filepath ph filepath">
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target/d211/demo88_nand/board.dts </span>：<ol class="- topic/ol ol" id="bringup_rgbDisplayConfig__ol_szc_p1c_d1c" data-ofbid="bringup_rgbDisplayConfig__ol_szc_p1c_d1c"><li class="- topic/li li" data-ofbid="d327600e89__20250121171831">配置通路<div class="- topic/p p" data-ofbid="d327600e91__20250121171831">通过 port 和 status
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结点，定义一条数据通道：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_q3t_q1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_q3t_q1c_d1c">fb | de | | rgb | panel
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port --> port0 port1 --> port0 port1 --> port
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&fb0 {
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port {
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fb0_out: endpoint {
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remote-endpoint = <&de0_in>;
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};
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};
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};
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&de0 {
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status = <span class="hl-string">"okay"</span>;
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port@<span class="hl-number">0</span> {
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reg = <<span class="hl-number">0</span>>;
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de0_in: endpoint {
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remote-endpoint = <&fb0_out>;
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};
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port@<span class="hl-number">1</span> {
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reg = <<span class="hl-number">1</span>>;
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de0_out: endpoint {
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remote-endpoint = <&rgb0_in>; <em class="hl-comment">//RGB</em>
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}
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};
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};
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&rgb0 {
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pinctrl-names = <span class="hl-string">"default"</span>, <span class="hl-string">"sleep"</span>;
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pinctrl-<span class="hl-number">0</span> = <&lcd_rgb565_ld_pins>; <em class="hl-comment">//RGB</em>
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pinctrl-<span class="hl-number">1</span> = <&lcd_rgb565_ld_sleep_pins>;
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status = <span class="hl-string">"okay"</span>;
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port@<span class="hl-number">0</span> {
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reg = <<span class="hl-number">0</span>>;
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rgb0_in: endpoint {
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remote-endpoint = <&de0_out>;
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}
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};
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port@<span class="hl-number">1</span> {
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reg = <<span class="hl-number">1</span>>;
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rgb0_out: endpoint {
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remote-endpoint = <&panel_rgb_in>; <em class="hl-comment">//RGB</em>
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};
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};
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}</pre></div></li><li class="- topic/li li" data-ofbid="d327600e95__20250121171831">配置屏幕参数<p class="- topic/p p" data-ofbid="d327600e97__20250121171831">其中类似 <span class="+ topic/keyword pr-d/parmname keyword parmname">enable-gpios</span> 控制引脚需要根据实际显示屏的需要增加或减少，驱动中做相应修改，
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<span class="+ topic/keyword pr-d/parmname keyword parmname">rgb-mode</span> 和 <span class="+ topic/keyword pr-d/parmname keyword parmname">interface-format</span>
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需要从规格书中获取， <span class="+ topic/keyword pr-d/parmname keyword parmname">data-order</span>
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<span class="+ topic/keyword pr-d/parmname keyword parmname">data-mirror</span> 需要根据板级走线的顺序设置相关参数。
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<span class="+ topic/keyword pr-d/parmname keyword parmname">clock-phase</span> 需要根据最终实际的显示效果做相应调整。 关于参数详细的解析，参考 <span class="- topic/xref xref"></span>
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的配置说明。</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_kjc_s1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_kjc_s1c_d1c">panel_rgb {
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compatible = <span class="hl-string">"artinchip,aic-general-rgb-panel"</span>;
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status = <span class="hl-string">"okay"</span>;
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||
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enable-gpios = <&gpio_e <span class="hl-number">19</span> GPIO_ACTIVE_HIGH>;
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sleep-gpios = <&gpio_e <span class="hl-number">15</span> GPIO_ACTIVE_HIGH>;
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rgb-mode = <PRGB>;
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interface-format = <PRGB_<span class="hl-number">16</span>BIT_LD>;
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clock-phase = <DEGREE_<span class="hl-number">0</span>>;
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data-order = <RGB>;
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disp-dither = <DITHER_RGB565>;
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port {
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panel_rgb_in: endpoint {
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remote-endpoint = <&rgb0_out>;
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};
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};
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display-timings {
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native-mode = <&timing0>;
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timing0: <span class="hl-number">1024</span>x600 {
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lock-frequency = <<span class="hl-number">52000000</span>>;
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hactive = <<span class="hl-number">1024</span>>;
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vactive = <<span class="hl-number">600</span>>;
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hback-porch = <<span class="hl-number">160</span>>;
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hfront-porch = <<span class="hl-number">160</span>>;
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hsync-len = <<span class="hl-number">20</span>>;
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vback-porch = <<span class="hl-number">12</span>>;
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vfront-porch = <<span class="hl-number">20</span>>;
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vsync-len = <<span class="hl-number">3</span>>;
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de-active = <<span class="hl-number">1</span>>;
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pixelclk-active = <<span class="hl-number">1</span>>;
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};
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};</pre></li><li class="- topic/li li" data-ofbid="d327600e123__20250121171831">配置引脚<p class="- topic/p p" data-ofbid="d327600e125__20250121171831">引脚的配置统一在 <span class="+ topic/ph sw-d/filepath ph filepath">d211-pinctrl.dtsi</span> 中完成，在
|
||
<span class="+ topic/keyword pr-d/parmname keyword parmname">rgb0</span>
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节点中直接进行了引用：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_x4l_t1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_x4l_t1c_d1c">&rgb0 {
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pinctrl-names = <span class="hl-string">"default"</span>, <span class="hl-string">"sleep"</span>;
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pinctrl-<span class="hl-number">0</span> = <&lcd_rgb565_ld_pins>;
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pinctrl-<span class="hl-number">1</span> = <&lcd_rgb565_ld_sleep_pins>;
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status = <span class="hl-string">"okay"</span>;
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||
......
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||
};</pre></li></ol></div>
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||
</section></div></article></main></div>
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</div>
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<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
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<div id="wh_topic_toc_content">
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_pwf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_pwf_vzb_d1c">配置 Uboot </a></div></li><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_rwf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_rwf_vzb_d1c">配置 Kernel </a></div></li><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_twf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_twf_vzb_d1c">uboot
|
||
dts</a></div></li><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_xwf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_xwf_vzb_d1c">系统 dts</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
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||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-21
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |