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class="shortdesc">主要描述板卡的各项配置，使 SDK 的环境和板卡匹配，并确保 SDK 编译后的固件能够在板子上正常运行。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2039" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2039-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-prepare.html" id="id-d3752e2039-link">准备工作</a></div></div></li><li role="treeitem"><div data-tocid="id-d3752e2097" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-soc.html" id="id-d3752e2097-link">引脚配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d3752e2111" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a 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class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-console.html" id="id-d3752e2277-link">调试配置</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d3752e2291" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d3752e2291-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display.html" id="id-d3752e2291-link">屏幕配置</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="section_etw_v5b_bdc-d3752e2305" class="topicref" data-id="section_etw_v5b_bdc" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_rgb.html" id="section_etw_v5b_bdc-d3752e2305-link">RGB</a></div></div></li><li role="treeitem"><div data-tocid="section_nch_w5b_bdc-d3752e2319" class="topicref" data-id="section_nch_w5b_bdc" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_lvds.html" id="section_nch_w5b_bdc-d3752e2319-link">LVDS</a></div></div></li><li role="treeitem" class="active"><div data-tocid="section_f4q_w5b_bdc-d3752e2333" class="topicref" data-id="section_f4q_w5b_bdc" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_mipi.html" id="section_f4q_w5b_bdc-d3752e2333-link">MIPI</a></div></div></li><li role="treeitem"><div data-tocid="section_t5h_xxn_42c-d3752e2347" class="topicref" data-id="section_t5h_xxn_42c" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_mipi-dbi.html" id="section_t5h_xxn_42c-d3752e2347-link">MIPI-DBI</a></div></div></li><li role="treeitem"><div data-tocid="section_ib4_x5b_bdc-d3752e2361" class="topicref" data-id="section_ib4_x5b_bdc" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_%E8%83%8C%E5%85%89%E9%85%8D%E7%BD%AE.html" id="section_ib4_x5b_bdc-d3752e2361-link">背光配置</a></div></div></li><li role="treeitem"><div data-tocid="section_rqc_hg4_42c-d3752e2375" class="topicref" data-id="section_rqc_hg4_42c" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-display_%E5%90%AF%E5%8A%A8_log.html" id="section_rqc_hg4_42c-d3752e2375-link">启动 log</a></div></div></li><li role="treeitem"><div data-tocid="concept_smb_cl3_pzb-d3752e2389" class="topicref" data-id="concept_smb_cl3_pzb" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/display_faq_screen.html" id="concept_smb_cl3_pzb-d3752e2389-link">调屏常见问题</a></div></div></li></ul></li><li role="treeitem"><div data-tocid="id-d3752e2403" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/lite-bringup-samples.html" id="id-d3752e2403-link">示例程序</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2418" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2418-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d3752e2418-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li></ul></div>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/bringup/lite-bringup-display_mipi.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">MIPI</h1>
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<div class="date inPage">16 May 2025</div><div style="color: gray;">
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Read time: 5 minute(s)
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</div>
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<div class="- topic/body body">
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<div class="- topic/p p" data-ofbid="d191730e28__20250519091526">MIPI-DSI 屏幕通常需要初始化，调试时需根据屏厂提供的资料，开发一款专用的驱动。开发步骤如下：。<ol class="- topic/ol ol" id="section_f4q_w5b_bdc__ol_o5k_kwb_bdc" data-ofbid="section_f4q_w5b_bdc__ol_o5k_kwb_bdc">
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<li class="- topic/li li" data-ofbid="d191730e32__20250519091526">新增一款屏驱动：<ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_ev3_5pn_42c" data-ofbid="section_f4q_w5b_bdc__ul_ev3_5pn_42c">
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<li class="- topic/li li" data-ofbid="d191730e36__20250519091526">复制模块文件 ``panel_dsi_xm91080.c``</li>
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<li class="- topic/li li" data-ofbid="d191730e39__20250519091526">将新文件重命名为 ``panel_dsi_xxx.c`` (xxx 为屏驱 IC 型号)</li>
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</ul></li>
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<li class="- topic/li li" data-ofbid="d191730e43__20250519091526">注册新驱动文件。<ul class="- topic/ul ul simple" id="section_f4q_w5b_bdc__ul_l4q_w5b_bdc" data-ofbid="section_f4q_w5b_bdc__ul_l4q_w5b_bdc">
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<li class="- topic/li li" data-ofbid="d191730e47__20250519091526">
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<p class="- topic/p p" data-ofbid="d191730e49__20250519091526">修改 ``bsp\artinchip\drv\display\panel\Kconfig`` 文件，添加配置项，让新驱动在
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menuconfig 界面可见。</p>
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_v5z_3rn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_v5z_3rn_42c">config AIC_PANEL_DSI_XXX
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bool <span class="hl-string">"ArtInChip MIPI DSI XXX panel"</span>
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depends on AIC_DISP_MIPI_DSI</pre>
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</li>
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<li class="- topic/li li" data-ofbid="d191730e56__20250519091526">
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<p class="- topic/p p" data-ofbid="d191730e58__20250519091526">修改 bsp/artinchip/SConscript 文件，添加编译规则。</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock" id="section_f4q_w5b_bdc__codeblock_b1w_mrn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_b1w_mrn_42c"><code>if GetDepend('AIC_PANEL_DSI_XXX'):
|
||
src += Glob('drv/display/panel/panel_dsi_xxx.c')</code></pre>
|
||
</li>
|
||
</ul></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e66__20250519091526">注册新 struct aic_panel 结构体：<ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_fhp_ksn_42c" data-ofbid="section_f4q_w5b_bdc__ul_fhp_ksn_42c">
|
||
<li class="- topic/li li" data-ofbid="d191730e70__20250519091526">修改 panel_dsi_xxx.c 的 struct aic_panel 命名，重命名为 dsi_xxx</li>
|
||
<li class="- topic/li li" data-ofbid="d191730e73__20250519091526">在 panel_com.h 中 extern struct aic_panel
|
||
dsi_xxx<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_vtw_tsn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_vtw_tsn_42c"><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></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e78__20250519091526">将 dsi_xxx 添加到 ``panel_com.c`` 文件的 panels[]
|
||
指针数组中<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_s42_xsn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_s42_xsn_42c"><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></li>
|
||
</ul></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e84__20250519091526">设置屏幕时序和接口参数*。<ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_csj_xtn_42c" data-ofbid="section_f4q_w5b_bdc__ul_csj_xtn_42c">
|
||
<li class="- topic/li li" data-ofbid="d191730e88__20250519091526">修改 ``struct display_timing`` 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="section_f4q_w5b_bdc__codeblock_rqn_55n_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_rqn_55n_42c"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> display_timing xxx_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="d191730e93__20250519091526">修改 struct panel_dsi 结构体，根据 LCD
|
||
屏幕规格书修改显示接口参数<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_hks_x5n_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_hks_x5n_42c"><strong class="hl-keyword">struct</strong> panel_dsi dsi = {
|
||
.mode = DSI_MOD_VID_BURST,
|
||
.format = DSI_FMT_RGB888,
|
||
.lane_num = <span class="hl-number">4</span>,
|
||
};</pre></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e98__20250519091526">根据 PCB 原理图修改 MIPI-DSI 通道顺序和极性<p class="- topic/p p" data-ofbid="d191730e100__20250519091526">修改
|
||
bsp\artinchip\drv\display\disp_conf.h
|
||
文件下列宏定义</p><p class="- topic/p p" data-ofbid="d191730e102__20250519091526">使用硬件设计指南的推荐设计，不需要修改下列参数</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_y4r_hvn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_y4r_hvn_42c"><span class="hl-tag-doctype-comment">/**
|
||
* MIPI-DSI options
|
||
*/</span>
|
||
|
||
<span class="hl-tag-doctype-comment">/**
|
||
* data lane assignments, default 0x3210
|
||
*
|
||
* default D3 D2 D1 D0
|
||
* PD26/PD27 PD24/PD25 PD20/PD21 PD18/PD19
|
||
*
|
||
* example 0x0123
|
||
* D0 D1 D2 D3
|
||
* PD26/PD27 PD24/PD25 PD20/PD21 PD18/PD19
|
||
*/</span>
|
||
#<span class="hl-directive">define</span> LANE_ASSIGNMENTS <span class="hl-number">0x3210</span>
|
||
|
||
<span class="hl-tag-doctype-comment">/**
|
||
* data lane polarities, default 0b0000
|
||
*
|
||
* default PD26/PD27 PD24/PD25 PD19/PD20 PD17/PD18
|
||
* N/P N/P N/P N/P
|
||
*
|
||
* example 0b1010
|
||
* PD26/PD27 PD24/PD25 PD19/PD20 PD17/PD18
|
||
* P/N N/P P/N N/P
|
||
*
|
||
* LANE_POLARITIES 0b1010
|
||
*/</span>
|
||
#<span class="hl-directive">define</span> LANE_POLARITIES <span class="hl-number">0</span>b0000
|
||
|
||
<span class="hl-tag-doctype-comment">/**
|
||
* data clk inverse, default 0
|
||
*
|
||
* default PD22/PD23
|
||
* N/P
|
||
*
|
||
* example 1
|
||
* PD23/PD22
|
||
* P/N
|
||
*/</span>
|
||
#<span class="hl-directive">define</span> CLK_INVERSE <span class="hl-number">0</span></pre></li>
|
||
</ul><div class="- topic/note note note note_note" id="section_f4q_w5b_bdc__note_l1k_lvn_42c" data-ofbid="section_f4q_w5b_bdc__note_l1k_lvn_42c"><span class="note__title">注：</span> 部分 MIPI 屏幕对 timing
|
||
时序较为敏感，时序不匹配可能会导致颜色异常，图像错位等显示问题。增大消隐区，更换 video mode 可以改善显示异常问题, 推荐使用
|
||
DSI_MOD_VID_BURST mode，显示异常时增大 hbp hfp</div></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e110__20250519091526">添加初始化操作*。<ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_dgq_5vn_42c" data-ofbid="section_f4q_w5b_bdc__ul_dgq_5vn_42c">
|
||
<li class="- topic/li li" data-ofbid="d191730e114__20250519091526">重新实现 struct aic_panel_funcs 结构体中的 prepare 或者 enable
|
||
接口，发送初始化命令<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_uyw_zvn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_uyw_zvn_42c"><strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> aic_panel_funcs st7701s_funcs = {
|
||
.disable = panel_default_disable,
|
||
.unprepare = panel_default_unprepare,
|
||
.prepare = panel_default_prepare,
|
||
.enable = panel_enable,
|
||
.register_callback = panel_register_callback,
|
||
};</pre></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e119__20250519091526">根据板卡原理图添加 ``reset`` 或 ``power`` 控制引脚的逻辑<p class="- topic/p p" data-ofbid="d191730e121__20250519091526">如果不需要软件控制 reset
|
||
引脚，该步骤可省略</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_zts_dwn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_zts_dwn_42c">#<span class="hl-directive">define</span> RESET_PIN <span class="hl-string">"PE.14"</span>
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">struct</strong> gpio_desc reset_gpio;
|
||
|
||
<strong class="hl-keyword">static</strong> <strong class="hl-keyword">void</strong> panel_gpio_init(<strong class="hl-keyword">void</strong>)
|
||
{
|
||
panel_get_gpio(&reset_gpio, RESET_PIN);
|
||
|
||
panel_gpio_set_value(&reset_gpio, <span class="hl-number">1</span>);
|
||
aic_delay_ms(<span class="hl-number">120</span>);
|
||
}</pre></li>
|
||
</ul></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e128__20250519091526">配置屏幕引脚功能。<p class="- topic/p p" data-ofbid="d191730e130__20250519091526">在 pinmux.c 文件中添加屏幕引脚</p><p class="- topic/p p" data-ofbid="d191730e132__20250519091526">以 demo128-nand 工程为例，在
|
||
target/d21x/demo128-nand/pinmux.c 中配置屏幕引脚</p><ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_t5j_5wn_42c" data-ofbid="section_f4q_w5b_bdc__ul_t5j_5wn_42c">
|
||
<li class="- topic/li li" data-ofbid="d191730e136__20250519091526">添加 reset 等控制引脚，配置功能 1<p class="- topic/p p" data-ofbid="d191730e138__20250519091526">如果不需要软件控制 reset
|
||
引脚，该步骤可省略</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_zjg_dxn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_zjg_dxn_42c">#ifdef AIC_DISP_MIPI_DSI
|
||
...
|
||
{<span class="hl-number">1</span>, PIN_PULL_DIS, <span class="hl-number">3</span>, <span class="hl-string">"PE.14"</span>}, <em class="hl-comment">// reset gpio</em>
|
||
#endif</pre></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e143__20250519091526">添加 MIPI-DSI 信号引脚，配置功能
|
||
4<pre class="+ topic/pre pr-d/codeblock pre codeblock" id="section_f4q_w5b_bdc__codeblock_f53_fxn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_f53_fxn_42c"><code>#ifdef AIC_DISP_MIPI_DSI // MIPI DSI 只有一组 pinmux 配置，根据使用的通道数量和原理图接线进行修改
|
||
{4, PIN_PULL_DIS, 3, "PD.18"},
|
||
{4, PIN_PULL_DIS, 3, "PD.19"},
|
||
{4, PIN_PULL_DIS, 3, "PD.20"},
|
||
{4, PIN_PULL_DIS, 3, "PD.21"},
|
||
{4, PIN_PULL_DIS, 3, "PD.22"},
|
||
{4, PIN_PULL_DIS, 3, "PD.23"},
|
||
{4, PIN_PULL_DIS, 3, "PD.24"},
|
||
{4, PIN_PULL_DIS, 3, "PD.25"},
|
||
{4, PIN_PULL_DIS, 3, "PD.26"},
|
||
{4, PIN_PULL_DIS, 3, "PD.27"},
|
||
#endif</code></pre></li>
|
||
</ul></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e149__20250519091526">使能新建的 panel 驱动<p class="- topic/p p" data-ofbid="d191730e151__20250519091526">在 Luban-Lite 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><ul class="- topic/ul ul" id="section_f4q_w5b_bdc__ul_t55_kxn_42c" data-ofbid="section_f4q_w5b_bdc__ul_t55_kxn_42c">
|
||
<li class="- topic/li li" data-ofbid="d191730e158__20250519091526">配置显示接口：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_ndr_qxn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_ndr_qxn_42c">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
select Display interface (Display MIPI-DSI interface) ---></pre></li>
|
||
<li class="- topic/li li" data-ofbid="d191730e163__20250519091526">选择新建的 ArtInChip MIPI DSI panel
|
||
驱动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="section_f4q_w5b_bdc__codeblock_b2t_rxn_42c" data-ofbid="section_f4q_w5b_bdc__codeblock_b2t_rxn_42c">Board options --->
|
||
[*] Using Display Engine (DE)
|
||
Display Parameter --->
|
||
Display Panels --->
|
||
ArtInChip Panel Drivers (ArtInChip MIPI DSI XXX panel) ---></pre></li>
|
||
</ul></li>
|
||
</ol></div>
|
||
</div>
|
||
</article></main></div>
|
||
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