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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" 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/lite-bringup-display.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">屏幕配置</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 7 minute(s)
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</div><div class="- topic/body body"><p class="- topic/p p" data-ofbid="d275440e19__20250121171747">屏幕的调试尽量在 RT-Thread 中完成，然后再移植到 Bootloader
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中。</p><section class="- topic/section section" id="id__section_etw_v5b_bdc" data-ofbid="id__section_etw_v5b_bdc"><h2 class="- topic/title title sectiontitle">RGB</h2>
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<p class="- topic/p p" data-ofbid="d275440e26__20250121171747">调试 RGB 屏时，仅需在相应的配置文件中加入规格书描述的时序和规格参数，无需添加额外的驱动程序。具体流程如下所示：</p>
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<p class="- topic/p p" data-ofbid="d275440e29__20250121171747">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span>，进入 menuconfig
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的功能配置界面。</p>
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<ol class="- topic/ol ol" id="id__ul_j2d_nvb_bdc" data-ofbid="id__ul_j2d_nvb_bdc"><li class="- topic/li li" data-ofbid="d275440e39__20250121171747">选择显示接口 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">Display RGB
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interface</span>：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_ltw_v5b_bdc" data-ofbid="id__pre_ltw_v5b_bdc">Board options --->
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[*] Using Display Engine (DE)
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Display Parameter --->
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select Display interface (Display RGB interface) --->
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RGB interface options --->
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</pre></li><li class="- topic/li li" data-ofbid="d275440e46__20250121171747">配置 <span class="+ topic/ph ui-d/uicontrol ph uicontrol">RGB interface options</span>
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中的接口参数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_mtw_v5b_bdc" data-ofbid="id__pre_mtw_v5b_bdc">Board options --->
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Graphics Support --->
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Graphics support
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[*] Display Support
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select Display interface (Display RGB interface) --->
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RGB interface options --->
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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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data order (RGB) --->
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clock phase select(<span class="hl-number">0</span> degree) --->
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</pre></li><li class="- topic/li li" data-ofbid="d275440e53__20250121171747">配置屏参数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_ntw_v5b_bdc" data-ofbid="id__pre_ntw_v5b_bdc">Board options --->
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Graphics Support --->
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Graphics support
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[*] Display Support
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select Display interface (Display RGB interface) --->
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RGB interface options --->
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Display Panels --->
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ArtInChip Panel Drivers (ArtInChip simple panel) --->
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display timing of simple panel --->
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</pre></li><li class="- topic/li li" data-ofbid="d275440e57__20250121171747">编辑 <span class="+ topic/ph sw-d/filepath ph filepath">pinmux.c</span> 文件配置引脚。<p class="- topic/p p" data-ofbid="d275440e62__20250121171747">以 <span class="+ topic/ph sw-d/filepath ph filepath">demo128-nand</span>
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工程为例，在配置文件 <span class="+ topic/ph sw-d/filepath ph filepath">target/d21x/demo128-nand/pinmux.c</span>
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中添加以下配置：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_otw_v5b_bdc" data-ofbid="id__pre_otw_v5b_bdc">#ifdef AIC_PRGB_<span class="hl-number">16</span>BIT_LD
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.8"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.9"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.10"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.11"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.12"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.13"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.14"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.15"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.16"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.17"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.18"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.19"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.20"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.21"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.22"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.23"</span>},
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{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.24"</span>},
|
||
{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.25"</span>},
|
||
{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.26"</span>},
|
||
{<span class="hl-number">2</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.27"</span>},
|
||
#endif</pre></li></ol>
|
||
|
||
|
||
</section><section class="- topic/section section" id="id__section_nch_w5b_bdc" data-ofbid="id__section_nch_w5b_bdc"><h2 class="- topic/title title sectiontitle">LVDS</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d275440e78__20250121171747">调试
|
||
LVDS
|
||
屏时，仅需在相应的配置文件中添加规格书中所描述的时序和规格参数，无需额外添加驱动程序。</p>
|
||
<p class="- topic/p p" data-ofbid="d275440e81__20250121171747">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span>，进入 menuconfig
|
||
的功能配置界面。</p>
|
||
|
||
<ol class="- topic/ol ol" id="id__ol_mqz_zvb_bdc" data-ofbid="id__ol_mqz_zvb_bdc"><li class="- topic/li li" data-ofbid="d275440e91__20250121171747">选择显示接口：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_ych_w5b_bdc" data-ofbid="id__pre_ych_w5b_bdc">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
select Display interface (Display LVDS interface) --->
|
||
LVDS interface options --->
|
||
</pre></li><li class="- topic/li li" data-ofbid="d275440e95__20250121171747">配置下列接口参数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_zch_w5b_bdc" data-ofbid="id__pre_zch_w5b_bdc">Board options --->
|
||
Graphics Support --->
|
||
Graphics support
|
||
[*] Display Support
|
||
select Display interface (Display LVDS interface) --->
|
||
LVDS interface options --->
|
||
lvds mode (vesa-<span class="hl-number">24</span>) --->
|
||
lvds link mode (single link <span class="hl-number">1</span>) --->
|
||
</pre></li><li class="- topic/li li" data-ofbid="d275440e99__20250121171747">配置屏参数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_adh_w5b_bdc" data-ofbid="id__pre_adh_w5b_bdc">Board options --->
|
||
Graphics Support --->
|
||
Graphics support
|
||
[*] Display Support
|
||
select Display interface (Display LVDS interface) --->
|
||
LVDS interface options --->
|
||
Display Panels --->
|
||
ArtInChip Panel Drivers (ArtInChip simple panel) --->
|
||
display timing of simple panel --->
|
||
</pre></li><li class="- topic/li li" data-ofbid="d275440e103__20250121171747">编辑 <span class="+ topic/ph sw-d/filepath ph filepath">pinmux.c</span> 文件配置引脚。<p class="- topic/p p" data-ofbid="d275440e108__20250121171747">以 demo128-nand 工程为例，在
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">target/d21x/demo128-nand/pinmux.c</span>
|
||
中添加以下配置：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_bdh_w5b_bdc" data-ofbid="id__pre_bdh_w5b_bdc">#ifdef AIC_LVDS_LINK_<span class="hl-number">1</span>
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.8"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.9"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.10"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.11"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.12"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.13"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.14"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.15"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.16"</span>},
|
||
{<span class="hl-number">3</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.17"</span>},
|
||
#endif</pre></li></ol>
|
||
|
||
|
||
</section><section class="- topic/section section" id="id__section_f4q_w5b_bdc" data-ofbid="id__section_f4q_w5b_bdc"><h2 class="- topic/title title sectiontitle">MIPI</h2>
|
||
|
||
|
||
<div class="- topic/p p" data-ofbid="d275440e121__20250121171747">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">me</span>，进入 menuconfig
|
||
的功能配置界面。<ol class="- topic/ol ol" id="id__ol_o5k_kwb_bdc" data-ofbid="id__ol_o5k_kwb_bdc"><li class="- topic/li li" data-ofbid="d275440e130__20250121171747">配置显示接口：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_kf5_wxb_bdc" data-ofbid="id__codeblock_kf5_wxb_bdc">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
select Display interface (Display MIPI-DSI interface) ---></pre></li><li class="- topic/li li" data-ofbid="d275440e134__20250121171747">新增一款屏驱动。根据屏接口类型选择一个模板，拷贝该模板文件，命名为<span class="+ topic/ph sw-d/filepath ph filepath">panel_dsi_xxx.c</span>。<ul class="- topic/ul ul simple" id="id__ul_l4q_w5b_bdc" data-ofbid="id__ul_l4q_w5b_bdc"><li class="- topic/li li" data-ofbid="d275440e140__20250121171747">
|
||
<p class="- topic/p p" data-ofbid="d275440e142__20250121171747">MIPI-DSI 接口可参考 <span class="+ topic/ph sw-d/filepath ph filepath">panel_dsi_xm91080.c</span>。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d275440e148__20250121171747">
|
||
<p class="- topic/p p" data-ofbid="d275440e150__20250121171747">MIPI-DBI 接口可参考 <span class="+ topic/ph sw-d/filepath ph filepath">panel_dbi_ili9486l.c</span>。</p>
|
||
</li></ul><p class="- topic/p p" data-ofbid="d275440e156__20250121171747">因为每一款 MIPI 屏幕的参数都不尽相同，ArtInChip 平台不支持 menuconfig 配置 MIPI 屏幕参数。，，推荐在
|
||
panel 驱动中使用 hardcode 的形式进行配置。</p></li><li class="- topic/li li" data-ofbid="d275440e158__20250121171747">使用下列方式将重新命名的文件添加进
|
||
Kconfig 和 SConscript
|
||
文件中：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_ong_4xb_bdc" data-ofbid="id__codeblock_ong_4xb_bdc"><em class="hl-comment">// bsp/artinchip/drv/display/panel/Kconfig</em>
|
||
config AIC_PANEL_DSI_XXX
|
||
bool <span class="hl-string">"ArtInChip MIPI DSI xxx panel"</span> depends on AIC_DISP_MIPI_DSI</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_zrx_4xb_bdc" data-ofbid="id__codeblock_zrx_4xb_bdc"># bsp/artinchip/SConscript
|
||
<strong class="hl-keyword">if</strong> GetDepend(<span class="hl-string">'AIC_PANEL_DSI_XXX'</span>):
|
||
src += Glob(<span class="hl-string">'drv/display/panel/panel_dsi_xxx.c'</span>)</pre></li><li class="- topic/li li" data-ofbid="d275440e164__20250121171747">修改 <span class="+ topic/keyword pr-d/apiname keyword apiname">struct aic_panel</span> 的命名，并注册 <span class="+ topic/keyword pr-d/apiname keyword apiname">struct
|
||
aic_panel</span>。<ol class="- topic/ol ol" type="a" id="id__ol_nbk_mxb_bdc" data-ofbid="id__ol_nbk_mxb_bdc"><li class="- topic/li li" data-ofbid="d275440e173__20250121171747">
|
||
<div class="- topic/p p" data-ofbid="d275440e175__20250121171747">将 <span class="+ topic/keyword pr-d/apiname keyword apiname">struct aic_panel</span> 添加到
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">panel_com.c</span> 文件的
|
||
<span class="+ topic/keyword pr-d/apiname keyword apiname">panels[]</span>
|
||
指针数组中。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_kgf_qxb_bdc" data-ofbid="id__codeblock_kgf_qxb_bdc"><em class="hl-comment">// panel_com.c</em>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> aic_panel *panels[] = {
|
||
...
|
||
#ifdef AIC_PANEL_DSI_XXX
|
||
&dsi_xxx,
|
||
#endif
|
||
};</pre></div>
|
||
</li><li class="- topic/li li" data-ofbid="d275440e189__20250121171747">
|
||
<div class="- topic/p p" data-ofbid="d275440e191__20250121171747">在 <span class="+ topic/ph sw-d/filepath ph filepath">panel_com.h</span> 文件中 <code class="+ topic/ph pr-d/codeph ph codeph">extern
|
||
<span class="+ topic/keyword pr-d/apiname keyword apiname">struct
|
||
aic_panel</span></code>。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_lkv_qxb_bdc" data-ofbid="id__codeblock_lkv_qxb_bdc"><em class="hl-comment">// panel_com.h</em>
|
||
<strong class="hl-keyword">extern</strong> <strong class="hl-keyword">struct</strong> aic_panel dsi_xxx;</pre></div>
|
||
</li></ol></li><li class="- topic/li li" data-ofbid="d275440e204__20250121171747">修改 <span class="+ topic/keyword pr-d/apiname keyword apiname">struct display_timing</span> 结构体，根据 LCD
|
||
屏幕规格书修改时序参数。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_b14_sxb_bdc" data-ofbid="id__codeblock_b14_sxb_bdc"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> display_timing xm91080_timing = {
|
||
.pixelclock = <span class="hl-number">130000000</span>,
|
||
.hactive = <span class="hl-number">1080</span>,
|
||
.hfront_porch = <span class="hl-number">160</span>,
|
||
.hback_porch = <span class="hl-number">160</span>,
|
||
.hsync_len = <span class="hl-number">40</span>,
|
||
.vactive = <span class="hl-number">1920</span>,
|
||
.vfront_porch = <span class="hl-number">10</span>,
|
||
.vback_porch = <span class="hl-number">20</span>,
|
||
.vsync_len = <span class="hl-number">8</span>,
|
||
};</pre></li><li class="- topic/li li" data-ofbid="d275440e211__20250121171747">重新实现 <span class="+ topic/keyword pr-d/apiname keyword apiname">aic_panel_funcs</span> 结构体中的 <span class="+ topic/keyword pr-d/apiname keyword apiname">prepare</span> 或者
|
||
<span class="+ topic/keyword pr-d/apiname keyword apiname">enable</span> 接口，添加初始化操作。</li><li class="- topic/li li" data-ofbid="d275440e222__20250121171747">在 menuconfig 的功能配置界面选择此屏，以 xm91080 panel
|
||
为例：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_qv3_5xb_bdc" data-ofbid="id__codeblock_qv3_5xb_bdc">Board options --->
|
||
Graphics Support --->
|
||
Graphics support
|
||
[*] Display Support
|
||
select Display interface (Display MIPI-DSI interface) --->
|
||
Display Panels --->
|
||
ArtInChip Panel Drivers (ArtInChip MIPI DSI xm91080 panel) ---></pre></li><li class="- topic/li li" data-ofbid="d275440e226__20250121171747">配置 MIPI 引脚。<div class="- topic/p p" data-ofbid="d275440e228__20250121171747">以 <span class="+ topic/ph sw-d/filepath ph filepath">demo128-nand</span> 工程为例，在
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">target/d21x/demo128-nand/pinmux.c</span>
|
||
中添加以下参数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_sfx_2yb_bdc" data-ofbid="id__codeblock_sfx_2yb_bdc">#ifdef AIC_DISP_MIPI_DSI
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.18"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.19"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.20"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.21"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.22"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.23"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.24"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.25"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.26"</span>},
|
||
{<span class="hl-number">4</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PD.27"</span>},
|
||
#endif</pre></div></li></ol></div>
|
||
|
||
</section><section class="- topic/section section" id="id__section_ib4_x5b_bdc" data-ofbid="id__section_ib4_x5b_bdc"><h2 class="- topic/title title sectiontitle">背光配置</h2>
|
||
|
||
|
||
<div class="- topic/p p" data-ofbid="d275440e244__20250121171747">根据是否需要调节背光亮度，用户可以选择以下任意方式控制背光：<ul class="- topic/ul ul" id="id__ul_n4p_czb_bdc" data-ofbid="id__ul_n4p_czb_bdc"><li class="- topic/li li" data-ofbid="d275440e247__20250121171747"><strong class="+ topic/ph hi-d/b ph b">GPIO 控制背光</strong>：如果没有调节背光亮度需求，仅仅是亮或黑屏。<p class="- topic/p p" data-ofbid="d275440e251__20250121171747">打开 menuconfig 配置界面，选择 GPIO
|
||
方式控制背光，以字符串的形式指定 GPIO 引脚，背光 GPIO
|
||
引脚默认高电平有效。</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_mb4_x5b_bdc" data-ofbid="id__pre_mb4_x5b_bdc">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
panel backlight control (gpio) --->
|
||
(PE.<span class="hl-number">19</span>) panel backlight enable pin
|
||
[ ] panel backlight enable pin low active</pre></li><li class="- topic/li li" data-ofbid="d275440e255__20250121171747"><strong class="+ topic/ph hi-d/b ph b">PWM 控制背光</strong>：如果有调节背光亮度的需求。<ol class="- topic/ol ol" id="id__ol_a1k_jzb_bdc" data-ofbid="id__ol_a1k_jzb_bdc"><li class="- topic/li li" data-ofbid="d275440e260__20250121171747">打开 menuconfig 配置界面。，</li><li class="- topic/li li" data-ofbid="d275440e262__20250121171747">使能 PWM，选择 PWM
|
||
方式控制背光。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_nb4_x5b_bdc" data-ofbid="id__pre_nb4_x5b_bdc">Board options --->
|
||
[*] Using PWM3</pre></li><li class="- topic/li li" data-ofbid="d275440e266__20250121171747">配置 PWM-BACKLIGHT 的通道和默认占空比 [0,
|
||
100]<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_ob4_x5b_bdc" data-ofbid="id__pre_ob4_x5b_bdc">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
panel backlight control (pwm) --->
|
||
(<span class="hl-number">3</span>) pwm backlight channel
|
||
(<span class="hl-number">80</span>)<strong class="hl-keyword">default</strong> brightness level</pre></li></ol></li></ul></div>
|
||
|
||
|
||
</section></div></article></main></div>
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