RSL10 BLE使用（一）BLE广播
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"> 图一</span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线">BLE想要让客户端（也就是<strong><span lang="EN-US" style="font-family:"微软雅黑",sans-serif"><span style="color:black">central device</span></span></strong><strong><span style="font-family:"微软雅黑",sans-serif"><span style="color:black">）搜寻到需要先发送广播帧。图一为BLE广播帧结构。</span></span></strong></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><strong><span style="font-family:"微软雅黑",sans-serif"><span style="color:black">前导帧不是01010101就是上数取反。 广播接入地址固定为</span></span></strong><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#333333">0x8E89BED6</span></span></span><span style="background:white"><span style="color:#333333">，字节低位在前。报头和长度后面详细说，这边不叙述。</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span style="background:white"><span style="color:#333333">我们主要看下数据部分，如下图二</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span style="background:white"><span style="color:#333333">：</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"> <span style="background:white"><span style="color:#333333">图二</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-size:11.0pt"><span style="color:black">len</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-size:11.0pt"><span style="color:black">type</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-size:11.0pt"><span style="color:black">data</span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span style="background:white"><span style="color:#4d4d4d">数据包含</span></span><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">N</span></span></span><span style="background:white"><span style="color:#4d4d4d">个</span></span><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">AD Structure</span></span></span><span style="background:white"><span style="color:#4d4d4d">，每个</span></span><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">AD Structure</span></span></span><span style="background:white"><span style="color:#4d4d4d">开始为一个长度字节表示</span></span><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">AD Structure</span></span></span><span style="background:white"><span style="color:#4d4d4d">的数据长度。</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">Type</span></span></span><span style="background:white"><span style="color:#4d4d4d">中</span></span><span lang="EN-US" style="background:white"><span style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d"> type =0x01</span></span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 0</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-size:11.0pt"><span style="color:black"> LE </span></span><span style="font-size:11.0pt"><span style="color:black">有限发现模式</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 1</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-size:11.0pt"><span style="color:black"> LE </span></span><span style="font-size:11.0pt"><span style="color:black">普通发现模式</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 2</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"> <span style="font-size:11.0pt"><span style="color:black">不支持 BR/EDR</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 3</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"> <span style="font-size:11.0pt"><span style="color:black">对 Same Device Capable(Controller) 同时支持 BLE 和 BR/EDR</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 4</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"> <span style="font-size:11.0pt"><span style="color:black">对 Same Device Capable(Host) 同时支持 BLE 和 BR/EDR</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"><span lang="EN-US" style="font-family:"Arial",sans-serif"><span style="color:#4d4d4d">bit 5..7</span></span></span></span></p>
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<p align="left" style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:等线"> <span style="font-size:11.0pt"><span style="color:black">预留</span></span></span></span></p>
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<li align="left" style="margin-left:16px; text-align:left"><span style="font-size:10.5pt"><span style="tab-stops:list 42.0pt"><span style="vertical-align:baseline"><span style="font-family:等线"><span style="font-family:宋体">设备全名：</span><span lang="EN-US" style="font-family:"inherit",serif"> TYPE = 0x08</span></span></span></span></span></li>
<li align="left" style="margin-left:16px; text-align:left"><span style="font-size:10.5pt"><span style="tab-stops:list 42.0pt"><span style="vertical-align:baseline"><span style="font-family:等线"><span style="font-family:宋体">设备简称：</span><span lang="EN-US" style="font-family:"inherit",serif"> TYPE = 0x09</span></span></span></span></span></li>
<li align="left" style="margin-left:16px; text-align:left"><span style="font-size:10.5pt"><span style="tab-stops:list 42.0pt"><span style="vertical-align:baseline"><span style="font-family:等线"><span lang="EN-US" style="font-family:"微软雅黑",sans-serif">TYPE = 0xFF</span><span style="font-family:"微软雅黑",sans-serif">，厂商自定义的数据，前两个字节表示厂商 ID</span></span></span></span></span></li>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><strong><span style="font-family:"微软雅黑",sans-serif"><span style="color:black"><span style="font-weight:normal">其他的type定义一起放到后面再详细介绍。</span></span></span></strong></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><strong><span style="font-family:"微软雅黑",sans-serif"><span style="color:black"><span style="font-weight:normal">所以可以看到图二的RSL10的广播报文为：</span></span></span></strong><span lang="EN-US" style="font-size:11.0pt"><span style="color:black">LE </span></span><span style="font-size:11.0pt"><span style="color:black">普通发现模式，不支持 BR/EDR。蓝牙名为ON EE lhj 。 蓝牙厂家为0x0362.</span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span style="font-size:11.0pt"><span style="color:black">下面介绍下RSL10中的代码：</span></span></span></span></p>
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<code>BDK_BLE_Initialize();//蓝牙初始化</code></pre>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:等线"><span style="font-size:10.0pt"><span style="background:#e8f2fe"><span style="color:#3f7f5f">进入函数</span></span></span></span></span></p>
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<code> BDK_BLE_SetLocalName(BDK_BLE_DEFAULT_LOCAL_NAME); //蓝牙命名</code></pre>
<p style="text-align:justify"> </p>
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<p>从楼主给资料看后，对BLE广播就很清楚了</p>
<p>期待楼主的后续分享~</p>
<p>乐乐，这就是你得作业？打屁股！</p>
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