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< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
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Read time: 3 minute(s)
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< section class = "- topic/section section" id = "id__ref-to-lite-rtc-cfg" data-ofbid = "id__ref-to-lite-rtc-cfg" > < h2 class = "- topic/title title sectiontitle" > 打开 RTC 驱动< / h2 >
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< li class = "- topic/li li" data-ofbid = "d112959e37__20250519091516" > 在 < span class = "- topic/ph ph" > Luban-Lite< / span > 根目录下执行 < span class = "+ topic/keyword sw-d/cmdname keyword cmdname" > scons --menuconfig< / span > ，进入
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menuconfig
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的功能配置界面。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_md4_bnb_ddc" data-ofbid = "id__codeblock_md4_bnb_ddc" > scons --menuconfig< / pre > < / li >
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< li class = "- topic/li li" data-ofbid = "d112959e48__20250519091516" > 在菜单中找到并选择 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Board options< / span > 后，勾选 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Using
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RTC< / span > 选项，即可启用 RTC
驱动。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_ic1_2nb_ddc" data-ofbid = "id__codeblock_ic1_2nb_ddc" > Board options --->
[*] Using RTC< / pre > < div class = "- topic/note note note note_note" id = "id__note_ilr_4mb_ddc" data-ofbid = "id__note_ilr_4mb_ddc" > < span class = "note__title" > 注：< / span >
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< p class = "- topic/p p" data-ofbid = "d112959e60__20250519091516" > 为了简化使用，< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Using RTC< / span > 会自动打开 RT-Thread 的 RTC
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设备驱动框架。< / p >
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< / div > < / li >
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< li class = "- topic/li li" data-ofbid = "d112959e67__20250519091516" > 根据实际需求调整 RTC 参数。如不需要，可跳过此步。< p class = "- topic/p p" data-ofbid = "d112959e69__20250519091516" > 勾选了 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Using RTC< / span > 的情况下，可以看到
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< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > RTC parameter< / span > ，默认值是 < code class = "+ topic/ph pr-d/codeph ph codeph" > (3276800) The
actual rate of 32K
clock< / code > ，可根据实际需求配置。< / p > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_xl4_3nb_ddc" data-ofbid = "id__codeblock_xl4_3nb_ddc" > Board options --->
[*] Using RTC
RTC parameter --->
(< span class = "hl-number" > 3276800< / span > ) The actual rate of < span class = "hl-number" > 32< / span > K clock
[ ] Enable the alarm IO output
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[ ] Enable the < span class = "hl-number" > 32< / span > K clock output< / pre > < p class = "- topic/p p" data-ofbid = "d112959e82__20250519091516" > 如果不需要启用 Alarm
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IO 输出和 32K 时钟输出，则勿勾选 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Enable the alarm IO output< / span > 和
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< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Enable the 32K clock output< / span > 。< / p > < / li >
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< li class = "- topic/li li" data-ofbid = "d112959e91__20250519091516" > 选择 RT-Thread 组件，启用 RTC 设备驱动和 Alarm。< p class = "- topic/p p" data-ofbid = "d112959e93__20250519091516" > 在菜单中找到并选择 < code class = "+ topic/ph pr-d/codeph ph codeph" > Rt-Thread
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options< / code > ，勾选 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Using RTC device drivers< / span > 和
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< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Using RTC alarm< / span > 。< / p > < div class = "- topic/p p" data-ofbid = "d112959e104__20250519091516" > 当使用 RT-Thread 内核的时候，
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驱动需要依赖 RT-Thread 的 RTC 设备驱动框架和 alarm
框架。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_crg_mmb_ddc" data-ofbid = "id__codeblock_crg_mmb_ddc" > Rt-Thread options --->
RT-Thread Components --->
Device Drivers --->
[*] Using RTC device drivers
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[*] Using RTC alarm< / pre > < / div > < / li >
< / ol >
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< / div >
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< / section >
< section class = "- topic/section section" id = "id__rtc" data-ofbid = "id__rtc" > < h2 class = "- topic/title title sectiontitle" > 配置 RTC 自定义参数< / h2 >
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< p class = "- topic/p p" data-ofbid = "d112959e119__20250519091516" > RTC 驱动在 menuconfig 中提供了一些扩展参数，方便用户根据板级硬件设计来进行调整。如下表：< / p >
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< div class = "table-container" > < table class = "- topic/table table frame-all" id = "id__table_nhv_cwh_bdc" data-ofbid = "id__table_nhv_cwh_bdc" data-cols = "5" > < caption class = "- topic/title title tablecap" data-caption-side = "top" data-is-repeated = "true" > < span class = "table--title-label" > 表< span class = "table--title-label-number" > 1< / span > < span class = "table--title-label-punctuation" > . < / span > < / span > < span class = "table--title" > RTC 自定义参数< / span > < / caption > < colgroup > < col style = "width:29.953051643192484%" / > < col style = "width:11.455399061032862%" / > < col style = "width:9.389671361502346%" / > < col style = "width:14.741784037558686%" / > < col style = "width:34.46009389671361%" / > < / colgroup > < thead class = "- topic/thead thead" >
< tr class = "- topic/row" >
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< th class = "- topic/entry entry colsep-1 rowsep-1" id = "id__table_nhv_cwh_bdc__entry__1" > < p class = "- topic/p p" data-ofbid = "d112959e145__20250519091516" > 参数名称< / p > < / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "id__table_nhv_cwh_bdc__entry__2" > < p class = "- topic/p p" data-ofbid = "d112959e149__20250519091516" > 适用版本< / p > < / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "id__table_nhv_cwh_bdc__entry__3" > < p class = "- topic/p p" data-ofbid = "d112959e153__20250519091516" > 类型< / p > < / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "id__table_nhv_cwh_bdc__entry__4" > < p class = "- topic/p p" data-ofbid = "d112959e157__20250519091516" > 取值范围< / p > < / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "id__table_nhv_cwh_bdc__entry__5" > < p class = "- topic/p p" data-ofbid = "d112959e161__20250519091516" > 功能说明< / p > < / th >
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< / tr >
< / thead > < tbody class = "- topic/tbody tbody" >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__1" > < p class = "- topic/p p" data-ofbid = "d112959e171__20250519091516" > AIC_RTC_CLK_RATE< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__2" > < p class = "- topic/p p" data-ofbid = "d112959e175__20250519091516" > V1.0< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__3" > < p class = "- topic/p p" data-ofbid = "d112959e179__20250519091516" > 正整数< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__4" > < p class = "- topic/p p" data-ofbid = "d112959e183__20250519091516" > 3276800±3196< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__5" > < p class = "- topic/p p" data-ofbid = "d112959e187__20250519091516" > 时钟源的实测频率值 * 100， < / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__1" > < p class = "- topic/p p" data-ofbid = "d112959e194__20250519091516" > AIC_RTC_ALARM_IO_OUTPUT< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__2" > < p class = "- topic/p p" data-ofbid = "d112959e198__20250519091516" > V1.0< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__3" > < p class = "- topic/p p" data-ofbid = "d112959e202__20250519091516" > boolean< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__4" > < p class = "- topic/p p" data-ofbid = "d112959e206__20250519091516" > 1 - 是， < / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "id__table_nhv_cwh_bdc__entry__5" > < p class = "- topic/p p" data-ofbid = "d112959e210__20250519091516" > 是否使能 Alarm 的 IO 输出功能< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "id__table_nhv_cwh_bdc__entry__1" > < p class = "- topic/p p" data-ofbid = "d112959e217__20250519091516" > AIC_RTC_32K_IO_OUTPUT< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "id__table_nhv_cwh_bdc__entry__2" > < p class = "- topic/p p" data-ofbid = "d112959e221__20250519091516" > V1.0< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "id__table_nhv_cwh_bdc__entry__3" > < p class = "- topic/p p" data-ofbid = "d112959e225__20250519091516" > boolean< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "id__table_nhv_cwh_bdc__entry__4" > < p class = "- topic/p p" data-ofbid = "d112959e229__20250519091516" > 1 - 是， < / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "id__table_nhv_cwh_bdc__entry__5" > < p class = "- topic/p p" data-ofbid = "d112959e233__20250519091516" > 是否使能 32K 时钟输出功能< / p > < / td >
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< / tr >
< / tbody > < / table > < / div >
< ol class = "- topic/ol ol arabic simple" id = "id__ol_ohv_cwh_bdc" data-ofbid = "id__ol_ohv_cwh_bdc" >
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< li class = "- topic/li li" data-ofbid = "d112959e242__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d112959e244__20250519091516" > < code class = "+ topic/ph pr-d/codeph ph codeph" > AIC_RTC_CLK_RATE< / code > 取时钟源频率值的 < strong class = "+ topic/ph hi-d/b ph b" > 100 倍< / strong > ，是为了提高校准的精度，校准可以精确到
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0.03Hz。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d112959e253__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d112959e255__20250519091516" > 参数 < code class = "+ topic/ph pr-d/codeph ph codeph" > aic,alarm-io-output< / code > 和 < code class = "+ topic/ph pr-d/codeph ph codeph" > aic,32k-io-output< / code >
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共用一个 IO 输出，所以只能二选一。< / p >
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< / li >
< / ol >
< / section >
< section class = "- topic/section section" id = "id__id3" data-ofbid = "id__id3" > < h2 class = "- topic/title title sectiontitle" > 配置时区< / h2 >
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< div class = "- topic/p p" data-ofbid = "d112959e273__20250519091516" > 在 RT-Thread 组件中提供了时区管理功能，< span class = "- topic/ph ph" > Luban-Lite< / span > SDK 中默认配置时区为中国的 +8 时区。按照下列流程，可以配置和管理时钟：< ol class = "- topic/ol ol" data-ofbid = "d112959e278__20250519091516" >
< li class = "- topic/li li" data-ofbid = "d112959e280__20250519091516" >
< div class = "- topic/p p" data-ofbid = "d112959e282__20250519091516" > 在 < span class = "- topic/ph ph" > Luban-Lite< / span > 根目录下执行 < span class = "+ topic/keyword sw-d/cmdname keyword cmdname" > scons --menuconfig< / span > ，进入
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menuconfig
的功能配置界面：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_qhv_cwh_bdc" data-ofbid = "id__codeblock_qhv_cwh_bdc" > Rt-Thread options --->
RT-Thread Components --->
C/C++ and POSIX layer --->
(< span class = "hl-number" > 8< / span > ) Set the < strong class = "hl-keyword" > default< / strong > time zone (UTC+)< / pre > < / div >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d112959e294__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d112959e296__20250519091516" > 保存 menuconfig 配置并退出。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d112959e300__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d112959e302__20250519091516" > 执行 Shell 命令 < code class = "+ topic/ph pr-d/codeph ph codeph" > date< / code > ，查看输出信息，判断是否有时区配置。< / p >
< div class = "- topic/p p" data-ofbid = "d112959e308__20250519091516" > 如果系统输出中含有 < code class = "+ topic/ph pr-d/codeph ph codeph" > UTC+8< / code > 字样，表示已经配置了 +8
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时区，示例如下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_rhv_cwh_bdc" data-ofbid = "id__codeblock_rhv_cwh_bdc" > date< / pre > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_rxd_lqz_sdc" data-ofbid = "id__codeblock_rxd_lqz_sdc" > local time: Sat May < span class = "hl-number" > 2011< / span > :< span class = "hl-number" > 22< / span > :< span class = "hl-number" > 05< / span > < span class = "hl-number" > 2023< / span >
timestamps: < span class = "hl-number" > 1684552925< / span >
timezone: UTC+< span class = "hl-number" > 8< / span > < / pre > < / div >
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< div class = "- topic/p p" data-ofbid = "d112959e318__20250519091516" > 此时， < code class = "+ topic/ph pr-d/codeph ph codeph" > date< / code > 时间存在一个时区差。
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关系如下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "id__codeblock_shv_cwh_bdc" data-ofbid = "id__codeblock_shv_cwh_bdc" > 系统时间 = RTC 时间 + 时区< / pre > < / div >
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< / li >
< / ol > < / div >
< / section >
< / div >
< / article > < / main > < / div >
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< / 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 = "#id__ref-to-lite-rtc-cfg" data-tocid = "id__ref-to-lite-rtc-cfg" > 打开 RTC 驱动< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#id__rtc" data-tocid = "id__rtc" > 配置 RTC 自定义参数< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#id__id3" data-tocid = "id__id3" > 配置时区< / 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 >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / 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 >
