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

communication with instrument through usb

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

const debug = require('debug');

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

function SysCmd() {
    this.sysLock = 'OFF';
    this.display = 'ON';
    this.func = 'VOLT';
    this.val = '0';
    this.autorange = 'ON';
}

SysCmd.prototype.cmdHandler = {
    IDN: {
        getHandler(sysObj, res) {
            log(res);
            return true;
        },
    },
    RST: {
        setHelper() {
            log('sent RST command');
            return true;
        },
    },
    CLS: {
        setHelper() {
            log('sent CLS command');
            return true;
        },
    },
    VAL: {
        getHandler(sysObj, res) {
            sysObj.val = res;
            return true;
        },
    },
    SysLocal: {
        setHelper(sysObj) {
            log('sent SysLocal command');
            sysObj.sysLock = 'OFF';
            return true;
        },
    },
    SysRemote: {
        setHelper(sysObj) {
            log('sent SysRemote command');
            sysObj.sysLock = 'ON';
            return true;
        },
    },
    Function: {
        getHandler(sysObj, res) {
            sysObj.func = res;
            return true;
        },
        setHelper(sysObj, arg) {
            sysObj.func = arg;
            return true;
        },
    },
    AutoRange: {
        getHandler(sysObj, res) {
            sysObj.autorange = res;
            return true;
        },
        setHelper(sysObj, arg) {
            log('sent RangeAuto command');
            sysObj.autorange = arg;
            return true;
        },
    },
};


exports.initDmmSysObj = function initDmmSysObj(id) {
    const sysCmd = new SysCmd();

    sysCmd.prop = propMethod.CreatMethod.call(this, id);
    return sysCmd;
};