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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/cir/cir_interface_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1><div class="date inPage">15 Jan 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="cir_interface_design_luban_lite__section_i5q_kvk_g1c" data-ofbid="cir_interface_design_luban_lite__section_i5q_kvk_g1c"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_x2k_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_x2k_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_cir_init</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__2">rt_err_t drv_cir_init(rt_device_t pdev)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__2">CIR 模块初始化</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__2">pdev: 指向 CIR 设备的指针</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__2">执行成功返回 RT_EOK</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_x2k_tzh_fdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_y2k_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_y2k_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_cir_open</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__2">rt_err_t drv_cir_open(rt_device_t pdev, rt_uint16_t
oflag)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__2">打开红外模块</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">pdev: 指向 CIR 设备的指针</div>
<div class="- topic/div div">oflag: 打开设备时设置的标志</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__2">执行成功返回 RT_EOK否则返回-RT_EINVAL</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_y2k_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div"> oflag 可设置的值:</div>
<div class="- topic/div div">RT_DEVICE_FLAG_WRONLY</div>
<div class="- topic/div div">RT_DEVICE_FLAG_RDONLY</div>
<div class="- topic/div div">RT_DEVICE_FLAG_RDWR</div>
<div class="- topic/div div">RT_DEVICE_FLAG_INT_RX</div>
<div class="- topic/div div"> 设置 RT_DEVICE_FLAG_RDONLY 时,必须同时设置
RT_DEVICE_FLAG_INT_RX</div>
</div>
</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_z2k_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_z2k_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_cir_close</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__2">rt_err_t drv_cir_close(rt_device_t pdev)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__2">关闭红外模块</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">pdev: 指向 CIR 设备的指针</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__2">执行成功返回 RT_EOK</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_z2k_tzh_fdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_afk_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_afk_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">drv_cir_read</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__2">rt_size_t drv_cir_read(rt_device_t pdev, rt_off_t pos, void
*buffer, rt_size_t size)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__2">读取 CIR 接收到的红外信号</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">pdev: 指向 CIR 设备的指针</div>
<div class="- topic/div div">buffer: 指向接收数据的指针</div>
<div class="- topic/div div">size: 读取的数据字节数</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__2">执行成功返回 0</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_afk_tzh_fdc__entry__2">-</td></tr></tbody></table></div>
</section><section class="- topic/section section" id="cir_interface_design_luban_lite__section_zcn_fvk_g1c" data-ofbid="cir_interface_design_luban_lite__section_zcn_fvk_g1c"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_bfk_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_bfk_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 5</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_cir_set_tx_carrier</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__2">int hal_cir_set_tx_carrier(aic_cir_ctrl_t * aic_cir_ctrl, uint8_t
protocol, uint32_t tx_duty);</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__2">设置 CIR 的发送载波参数</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">aic_cir_ctrl: 指向 aic_cir_ctrl_t 的指针</div>
<div class="- topic/div div">protocol: 使用的 CIR 协议</div>
<div class="- topic/div div">tx_duty: 协议的占空比</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__2">执行成功返回 0</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_bfk_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">protocol 取值: NEC, 0; RC5, 1</div>
<div class="- topic/div div">tx_duty: 若占空比为 33%,则 tx_duty 设置为 33</div>
</div>
</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_cfk_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_cfk_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 6</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_cir_send_data</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__2">void hal_cir_send_data(aic_cir_ctrl_t * aic_cir_ctrl, uint8_t *
tx_data, uint32_t size);</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__2">CIR 发送数据</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">aic_cir_ctrl: 指向 aic_cir_ctrl_t 的指针</div>
<div class="- topic/div div">tx_data: 指向要发送的数据指针</div>
<div class="- topic/div div">size: 发送的数据字节数</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__2">执行成功返回 0</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_cfk_tzh_fdc__entry__2">- </td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="cir_interface_design_luban_lite__table_dfk_tzh_fdc" data-ofbid="cir_interface_design_luban_lite__table_dfk_tzh_fdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 7</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">hal_cir_set_rx_sample_clock</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__2">void hal_cir_set_rx_sample_clock(aic_cir_ctrl_t * aic_cir_ctrl,
uint8_t protocol);</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__2">设置 CIR 接收采样时钟</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">aic_cir_ctrl: 指向 aic_cir_ctrl_t 的指针</div>
<div class="- topic/div div">protocol: 使用的 CIR 协议</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__2">执行成功返回 0</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="cir_interface_design_luban_lite__table_dfk_tzh_fdc__entry__2">-</td></tr></tbody></table></div>
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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="#cir_interface_design_luban_lite__section_i5q_kvk_g1c" data-tocid="cir_interface_design_luban_lite__section_i5q_kvk_g1c">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#cir_interface_design_luban_lite__section_zcn_fvk_g1c" data-tocid="cir_interface_design_luban_lite__section_zcn_fvk_g1c">HAL 层接口设计</a></div></li></ul></div>
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