712 lines
21 KiB
Markdown
712 lines
21 KiB
Markdown
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# AT
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|
||
font-size:9pt;
|
||
font-weight:400;
|
||
font-style:normal;
|
||
font-family:"Arial","serif";
|
||
border-top:1px solid windowtext;
|
||
border-right:1px solid windowtext;
|
||
border-bottom:1px solid windowtext;
|
||
border-left:1px solid windowtext;
|
||
mso-diagonal-down:none;
|
||
mso-diagonal-up:none;
|
||
mso-protection:locked visible;
|
||
}
|
||
-->
|
||
</style>
|
||
<!--[if gte mso 9]><xml>
|
||
<x:ExcelWorkbook>
|
||
<x:ExcelWorksheets>
|
||
<x:ExcelWorksheet>
|
||
<x:Name>Sheet1</x:Name>
|
||
<x:WorksheetOptions>
|
||
<x:StandardWidth>2304</x:StandardWidth>
|
||
<x:Print>
|
||
<x:ValidPrinterInfo/>
|
||
<x:PaperSizeIndex>9</x:PaperSizeIndex>
|
||
<x:HorizontalResolution>600</x:HorizontalResolution>
|
||
<x:VerticalResolution>600</x:VerticalResolution>
|
||
</x:Print>
|
||
<x:Selected/>
|
||
<x:TopRowVisible>15</x:TopRowVisible>
|
||
</x:WorksheetOptions>
|
||
</x:ExcelWorksheet>
|
||
</x:ExcelWorksheets>
|
||
<x:WindowHeight>12576</x:WindowHeight>
|
||
<x:WindowWidth>23256</x:WindowWidth>
|
||
<x:WindowTopX>-108</x:WindowTopX>
|
||
<x:WindowTopY>-108</x:WindowTopY>
|
||
<x:RefModeR1C1/>
|
||
<x:TabRatio>600</x:TabRatio>
|
||
<x:ActiveSheet>0</x:ActiveSheet>
|
||
</x:ExcelWorkbook>
|
||
</xml><![endif]-->
|
||
</head>
|
||
|
||
|
||
|
||
|
||
|
||
## AT 指令简介
|
||
<el-divider></el-divider>
|
||
AT指令是应用于终端设备与PC应用之间的连接与通信的指令。AT 即Attention。每个AT命令行中只能包含一条AT指令；对于AT指令的发送，除AT两个字符外，最多可以接收1056个字符的长度（包括最后的空字符）。</br></br>
|
||
|
||
AT指令集是从终端设备（Terminal Equipment，TE)或数据终端设备（Data Terminal Equipment，DTE)向终端适配器(Terminal Adapter，TA)或数据电路终端设备(Data Circuit Terminal Equipment，DCE)发送的。</br></br>
|
||
其对所传输的数据包大小有定义：即对于AT指令的发送，除AT两个字符外，最多可以接收1056个字符的长度（包括最后的空字符）。</br></br>
|
||
每个AT命令行中只能包含一条AT指令；对于由终端设备主动向PC端报告的URC指示或者response响应，也要求一行最多有一个，不允许上报的一行中有多条指示或者响应。AT指令以回车作为结尾，响应或上报以回车换行为结尾。</br>
|
||
|
||
## ESP8266 中AT指令的使用
|
||
<el-divider></el-divider>
|
||
下面以ESP8266为例，来说明AT指令的使用。
|
||
<body link='blue' vlink='purple' >
|
||
<table border='0' cellpadding='0' cellspacing='0' width='661' style='border-collapse:
|
||
collapse;table-layout:fixed;width:495pt'>
|
||
<col width='307' style='mso-width-source:userset;width:230.25pt'>
|
||
<col width='282' style='mso-width-source:userset;width:211.5pt'>
|
||
<col width='72' style='width:54pt'>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r0'>
|
||
<td height='24' class='x21' width='307' style='height:18.45pt;width:230.25pt;'>指令</td>
|
||
<td colspan='2' class='x22' width='354' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>描述</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r1'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">测试 </font><font class="font4">AT </font><font class="font3">启动</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r2'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+RST</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>重启模块</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r3'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+GMR</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>查看版本信息</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r4'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+GSLP</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">进</font><font class="font6">⼊</font><font class="font7">入 </font><font class="font4">Deep-sleep </font><font class="font3">模式</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r5'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>ATE</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>开关回显功能</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r6'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+RESTORE</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">恢复出</font><font class="font6">⼚</font><font class="font7">厂设置</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r7'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+UART_CUR</td>
|
||
<td colspan='2' class='x26' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font4">UART </font><font class="font3">当前临时配置</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r8'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+UART_DEF</td>
|
||
<td colspan='2' class='x26' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font4">UART </font><font class="font3">默认配置，保存到 </font><font class="font4">Flash</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r9'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SLEEP</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">sleep </font><font class="font3">模式</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r10'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+WAKEUPGPIO</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">GPIO </font><font class="font3">唤醒 </font><font class="font4">Light-sleep </font><font class="font3">模式</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r11'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+RFPOWER</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">RF TX Power </font><font class="font3">上限</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r12'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+RFVDD</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">根据 </font><font class="font4">VDD33 </font><font class="font3">设置 </font><font class="font4">RF TX Power</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r13'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSRAM</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>查询系统当前剩余内存</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r14'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSADC</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">查询 </font><font class="font4">ADC </font><font class="font3">值</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r15'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSIOSETCFG</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">IO </font><font class="font3">⼯工作模式</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r16'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSIOGETCFG</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">查询 </font><font class="font4">IO </font><font class="font3">⼯工作模式</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r17'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSGPIODIR</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">GPIO </font><font class="font3">⼯工作为输⼊入或输出</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r18'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSGPIOWRITE</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">设置 </font><font class="font4">GPIO </font><font class="font3">的输出电平</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r19'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSGPIOREAD</td>
|
||
<td colspan='2' class='x24' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'><font class="font3">读取 </font><font class="font4">GPIO </font><font class="font3">的电平状态</font></td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r20'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSMSG_CUR</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>设置当前系统消息</td>
|
||
</tr>
|
||
<tr height='26' style='mso-height-source:userset;height:19.95pt' id='r21'>
|
||
<td height='24' class='x23' style='height:18.45pt;'>AT+SYSMSG_DEF</td>
|
||
<td colspan='2' class='x25' style='border-right:1px solid windowtext;border-bottom:1px solid windowtext;'>设置默认系统消息</td>
|
||
</tr>
|
||
|
||
</table>
|
||
|
||
|
||
</body>
|