校验和不匹配使用node-xbee发送数据包时出现错误

configuration为Coordinator API XBee系列2试图将数据包发送到configuration为Router AT的XBee系列2。 协调器连接到运行node.js和xbee-api库的Mac OSX。

 var frame_obj = { type: 0x10, ud: 0x01, destination64: "0013a20040b19213", data: "1" } serialport.write(xbeeAPI.buildFrame(frame_obj)) 

这会导致节点抛出一个错误：

 /Users/me/Dropbox/Projects/test-node/node_modules/xbee-api/lib/xbee-api.js:173 throw new Error("Checksum Mismatch", S); ^ Error: Checksum Mismatch at XBeeAPI.parseRaw (/Users/me/Dropbox/Projects/test-node/node_modules/xbee-api/lib/xbee-api.js:173:15) at Object.parser (/Users/me/Dropbox/Projects/test-node/node_modules/xbee-api/lib/xbee-api.js:119:10) at Object.SerialPort.options.dataCallback (/Users/me/Dropbox/Projects/test-node/node_modules/serialport/serialport.js:136:15) at SerialPortFactory.SerialPort._emitData (/Users/me/Dropbox/Projects/test-node/node_modules/serialport/serialport.js:305:20) at afterRead (/Users/me/Dropbox/Projects/test-node/node_modules/serialport/serialport.js:283:18) at /Users/me/Dropbox/Projects/test-node/node_modules/serialport/serialport.js:297:9 at Object.wrapper [as oncomplete] (fs.js:454:17) 

在AT Router端使用Arduino的串行监视器，我们可以看到协调器发送的数据实际上到达了路由器。

问题：为什么会出现校验和错误？ 我们如何解决这个问题呢？

路由器在configuration

  <data> <profile> <description_file>XB24-ZB_22A7.xml</description_file> <settings> <setting command="ID">2001</setting> <setting command="SC">FFFF</setting> <setting command="SD">3</setting> <setting command="ZS">0</setting> <setting command="NJ">FF</setting> <setting command="NW">0</setting> <setting command="JV">1</setting> <setting command="JN">0</setting> <setting command="DH">13A200</setting> <setting command="DL">40A74613</setting> <setting command="NI">0x20</setting> <setting command="NH">1E</setting> <setting command="BH">0</setting> <setting command="AR">FF</setting> <setting command="DD">30000</setting> <setting command="NT">3C</setting> <setting command="NO">3</setting> <setting command="CR">3</setting> <setting command="SE">E8</setting> <setting command="DE">E8</setting> <setting command="CI">11</setting> <setting command="PL">4</setting> <setting command="PM">1</setting> <setting command="EE">0</setting> <setting command="EO">0</setting> <setting command="KY"></setting> <setting command="BD">3</setting> <setting command="NB">0</setting> <setting command="SB">0</setting> <setting command="RO">3</setting> <setting command="D7">1</setting> <setting command="D6">0</setting> <setting command="CT">64</setting> <setting command="GT">3E8</setting> <setting command="CC">2B</setting> <setting command="SM">0</setting> <setting command="SN">1</setting> <setting command="SO">0</setting> <setting command="SP">20</setting> <setting command="ST">1388</setting> <setting command="PO">0</setting> <setting command="D0">0</setting> <setting command="D1">0</setting> <setting command="D2">0</setting> <setting command="D3">0</setting> <setting command="D4">0</setting> <setting command="D5">1</setting> <setting command="P0">1</setting> <setting command="P1">0</setting> <setting command="P2">0</setting> <setting command="PR">1FFF</setting> <setting command="LT">0</setting> <setting command="RP">28</setting> <setting command="DO">1</setting> <setting command="IR">3E8</setting> <setting command="IC">0</setting> <setting command="V+">0</setting> </settings> </profile> </data> 

协调员APIconfiguration

  <data> <profile> <description_file>XB24-ZB_21A7.xml</description_file> <settings> <setting command="ID">2001</setting> <setting command="SC">FFFF</setting> <setting command="SD">3</setting> <setting command="ZS">0</setting> <setting command="NJ">FF</setting> <setting command="DH">0</setting> <setting command="DL">FFFF</setting> <setting command="NI">0x20</setting> <setting command="NH">1E</setting> <setting command="BH">0</setting> <setting command="AR">FF</setting> <setting command="DD">30000</setting> <setting command="NT">3C</setting> <setting command="NO">3</setting> <setting command="CR">3</setting> <setting command="PL">4</setting> <setting command="PM">1</setting> <setting command="EE">0</setting> <setting command="EO">0</setting> <setting command="KY"></setting> <setting command="NK"></setting> <setting command="BD">3</setting> <setting command="NB">0</setting> <setting command="SB">0</setting> <setting command="D7">1</setting> <setting command="D6">0</setting> <setting command="AP">1</setting> <setting command="AO">0</setting> <setting command="SP">20</setting> <setting command="SN">1</setting> <setting command="D0">1</setting> <setting command="D1">0</setting> <setting command="D2">0</setting> <setting command="D3">0</setting> <setting command="D4">0</setting> <setting command="D5">1</setting> <setting command="P0">1</setting> <setting command="P1">0</setting> <setting command="P2">0</setting> <setting command="PR">1FFF</setting> <setting command="LT">0</setting> <setting command="RP">28</setting> <setting command="DO">1</setting> <setting command="IR">0</setting> <setting command="IC">0</setting> <setting command="V+">0</setting> </settings> </profile> </data> 

Answer 1

在parsing协调器上接收的帧时，看起来像是引发了错误。 如果是这样的话，你可以转储接收到的帧？

堆栈跟踪指向fs.js:454:17 – 是你的代码？ 什么东西在那里？

如果你尝试xbee-api其他样本，他们是否工作？

有点不相干，但我build议以115200 bps运行协调器，并确保在串行库和XBee模块中都启用了stream量控制。 这可以避免溢出缓冲区的问题。 从networking进入的数据在堆积在XBee模块之前被传送到主机。

要启用硬件stream量控制，请将XBee模块上的ATD6和ATD7设置为1 。 这要求主机在发送XBee之前检查CTS信号，并在准备好接收来自XBee的字节时声明RTS信号。