weblab-instrument/inst-driver/pwr/system.js

communication with instrument through usb

const propMethod = require('../dev/propMethod.js');

const debug = require('debug');

const log = debug('pwr_sys:log');

function SysCmd() {
    this.sysLock = 'OFF';
    this.status = '';
    this.track = '0';
    this.beep = '0';
    this.out = '0';
}

SysCmd.prototype.cmdHandler = {
    IDN: {
        getHandler() {
            return true;
        },
    },
    RST: {
        setHelper() {
            return true;
        },
    },
    SysLocal: {
        setHelper(sysObj) {
            sysObj.sysLock = 'OFF';
            return true;
        },
    },
    SysRemote: {
        setHelper(sysObj) {
            log('sent SysRemote command');
            sysObj.sysLock = 'ON';
            return true;
        },
    },
    STATUS: {
        getHandler(sysObj, res) {
            let status = '';
            if (res.length > 15) { // GPD3303D
                for (let i = 0; i < 15; i += 2) { status += res[i]; }
                log(status);
                sysObj.status = status.slice(0, 5) + status[6] + status[6] + status[7];
            } else {
                sysObj.status = res;
            }
            return true;
        },
    },
    TRACK: {
        setHelper(sysObj, arg) {
            sysObj.track = arg;
            return true;
        },
    },
    BEEP: {
        setHelper(sysObj, arg) {
            sysObj.beep = arg;
            return true;
        },
    },
    OUT: {
        setHelper(sysObj, arg) {
            log('sent RangeAuto command');
            sysObj.out = arg;
            return true;
        },
    },
};

exports.initPwrSysObj = function initPwrSysObj(id) {
    const sysCmd = new SysCmd();
    sysCmd.prop = propMethod.CreatMethod.call(this, id);

    return sysCmd;
};