mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
synced 2025-12-14 18:38:55 +00:00
202 lines
14 KiB
HTML
202 lines
14 KiB
HTML
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.0">
|
||
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="中断处理流程 VE 中断类型有三种，包括： finish 中断：VE 任务正常结束 error 中断：VE 处理任务过程中出错 bit request 中断：当前数据不足以完成一次完整的任务，需要继续发送数据 上层程序对 VE 中断的处理 finish 中断处理：VE 正常结束，释放 VE 硬件设备独占权限 bit request 中断处理：再次发送一笔数据，重新启动 VE ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.created" content="2024-01-17"/><meta name="DC.date.modified" content="2024-11-14"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="ve_key_procedure"/><meta name="DC.language" content="zh-CN"/><title>关键流程设计</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/sdk/ve/ve-key_procedure.dita"/><meta name="wh-out-relpath" content="topics/sdk/ve/ve-key_procedure.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2023110923"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2023110923"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250121171154"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2023110923"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250121171154"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2023110923"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2023110923"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2023110923"/></head>
|
||
|
||
<body id="ve_key_procedure" class="wh_topic_page frmBody">
|
||
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
||
跳转到主要内容
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<header class="navbar navbar-default wh_header">
|
||
<div class="container-fluid">
|
||
<div class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
||
<div class="wh_logo_and_publication_title_container">
|
||
<div class="wh_logo_and_publication_title">
|
||
|
||
<a href="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.png" alt="RTOS SDK 使用指南SDK 指南文件"/></a>
|
||
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"><span class="ph mainbooktitle">RTOS SDK 使用指南</span><span class="ph booktitlealt">SDK 指南文件</span></span></a></div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
||
|
||
|
||
|
||
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<div class="container-fluid" id="wh_topic_container">
|
||
<div class="row">
|
||
|
||
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
||
|
||
<div data-tooltip-position="bottom" class=" wh_breadcrumb "></div>
|
||
|
||
|
||
|
||
<div class="wh_right_tools">
|
||
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
||
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
||
|
||
|
||
</div>
|
||
|
||
</nav>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="wh_content_area">
|
||
<div class="row">
|
||
|
||
|
||
<div class="col-lg-10 col-md-10 col-sm-10 col-xs-12" id="wh_topic_body">
|
||
|
||
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
|
||
<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/ve/ve-key_procedure.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">关键流程设计</h1><div class="date inPage">14 Nov 2024</div><div style="color: gray;">
|
||
Read time: 1 minute(s)
|
||
</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="ve_key_procedure__section_oqc_vhb_d1c" data-ofbid="ve_key_procedure__section_oqc_vhb_d1c"><h2 class="- topic/title title sectiontitle">中断处理流程</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d122837e28__20250121171559">VE 中断类型有三种，包括：</p>
|
||
<ul class="- topic/ul ul" id="ve_key_procedure__ul_pqc_vhb_d1c" data-ofbid="ve_key_procedure__ul_pqc_vhb_d1c"><li class="- topic/li li" data-ofbid="d122837e32__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e34__20250121171559">finish 中断：VE 任务正常结束</p>
|
||
</li><li class="- topic/li li" data-ofbid="d122837e37__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e39__20250121171559">error 中断：VE 处理任务过程中出错</p>
|
||
</li><li class="- topic/li li" data-ofbid="d122837e42__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e44__20250121171559">bit request 中断：当前数据不足以完成一次完整的任务，需要继续发送数据</p>
|
||
</li></ul>
|
||
<div class="- topic/p p" data-ofbid="d122837e48__20250121171559"><ul class="- topic/ul ul" id="ve_key_procedure__ul_afm_zhb_d1c" data-ofbid="ve_key_procedure__ul_afm_zhb_d1c"><li class="- topic/li li" data-ofbid="d122837e50__20250121171559"><span class="- topic/ph ph">上层程序对 VE 中断的处理 </span><ul class="- topic/ul ul" id="ve_key_procedure__ul_uqc_vhb_d1c" data-ofbid="ve_key_procedure__ul_uqc_vhb_d1c"><li class="- topic/li li" data-ofbid="d122837e54__20250121171559">finish 中断处理：VE 正常结束，释放 VE 硬件设备独占权限</li><li class="- topic/li li" data-ofbid="d122837e56__20250121171559">bit request 中断处理：再次发送一笔数据，重新启动 VE 执行任务，重复以上过程，直到 VE 返回 finish 或
|
||
error 中断</li><li class="- topic/li li" data-ofbid="d122837e58__20250121171559">error 中断：VE 执行出错，必须对 VE 进行硬件复位避免错误影响下次任务</li><li class="- topic/li li" data-ofbid="d122837e60__20250121171559">等中断超时：此时 VE 出现未知异常，必须对 VE 进行硬件复位</li></ul><div class="- topic/note note note note_note" id="ve_key_procedure__note_txk_whb_d1c" data-ofbid="ve_key_procedure__note_txk_whb_d1c"><span class="note__title">注：</span> 处理 bit request 中断时，不能释放 VE
|
||
硬件设备独占权限，因为两次任务处理有相关性。如果这两次任务之间执行其他任务，会影响 VE
|
||
内部状态，从而导致该次任务执行出错。</div></li></ul></div>
|
||
</section><section class="- topic/section section" id="ve_key_procedure__section_yqc_vhb_d1c" data-ofbid="ve_key_procedure__section_yqc_vhb_d1c"><h2 class="- topic/title title sectiontitle">多线程支持</h2>
|
||
|
||
|
||
<ul class="- topic/ul ul" id="ve_key_procedure__ul_jgz_t3n_f1c" data-ofbid="ve_key_procedure__ul_jgz_t3n_f1c"><li class="- topic/li li" data-ofbid="d122837e71__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e73__20250121171559">VE 设备只有一个，所以同一时间只能执行一个任务。当多个线程同时操作 VE 驱动时，VE 只能分时复用。因此上层程序在操作 VE 之前，必须获得 VE
|
||
的独占权限。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d122837e76__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e78__20250121171559">VE 驱动通过 IOC_VE_GET_CLIENT/IOC_VE_PUT_CLIENT 这两个 drv_ve_control 接口为上层程序提供获取和释放
|
||
VE 独占权限功能。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d122837e81__20250121171559">
|
||
<p class="- topic/p p" data-ofbid="d122837e83__20250121171559">为避免每个线程都执行 VE 驱动初始化等重复操作，建议用户态程序使用单例模式实现 VE 驱动调用。具体实现可参考 mpp 代码，路径为
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">packages/artinchip/mpp/ve/common/ve.c</span>。</p>
|
||
</li></ul>
|
||
</section></div></article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<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">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<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="#ve_key_procedure__section_oqc_vhb_d1c" data-tocid="ve_key_procedure__section_oqc_vhb_d1c">中断处理流程</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_key_procedure__section_yqc_vhb_d1c" data-tocid="ve_key_procedure__section_yqc_vhb_d1c">多线程支持</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</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> |