52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
import SerialPort from 'serialport'
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import InterByteTimeout from '@serialport/parser-inter-byte-timeout'
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import config from './config'
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import sendMsg from './ipcRendererManager'
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import NMEAHandler from './api/NMEAHandler'
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const DEFAULT_BAUDRATE = 115200
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const getSerialPortConstructorArguments = (ports) => {
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// 很多电脑自带COM1接口，过滤掉COM1口
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ports = ports.filter((port) => port.path != 'COM1')
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if (ports.length == 0) return
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// console.log(ports, '=====================')
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const serialport = config.get('serialport')
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const path = ( serialport && serialport.path ) ? serialport.path : ports[0].path
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const baudRate = ( serialport && serialport.baudRate ) ? serialport.baudRate : DEFAULT_BAUDRATE
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return { path, baudRate }
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}
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const openSerialport = (ports) => {
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try {
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const constructorArguments = getSerialPortConstructorArguments(ports)
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if (!constructorArguments) {
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console.error('设备未连接')
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return
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}
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const { path, baudRate } = constructorArguments
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// console.log(path, baudRate, '++++++++++++++===');
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const serialPort = new SerialPort(path, { baudRate })
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const parser = serialPort.pipe(new InterByteTimeout({interval: 300}))
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NMEAHandler.on('received' , (nmeaStr) => {
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sendMsg('NMEA_RECEIVED', nmeaStr)
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})
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NMEAHandler.on('handled' , (nmeaObj) => {
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sendMsg('NMEA_HANDLED', JSON.stringify(nmeaObj))
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})
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parser.on('data', (data) => NMEAHandler.handle(data.toString()))
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} catch (error) {
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console.error(error);
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}
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}
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SerialPort.list().then(
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ports => openSerialport(ports),
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err => console.error(err)
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)
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