gistfile1.js

/*
var eepromConfigDefinition = {
    eepromConfigDefinition: {
        version:      'uint8',
        calibrateESC: 'uint8',

        ACCEL_BIAS:  ['array', 'int16', 3],

        PID_YAW_c:   ['array', 'float32', 4],
        PID_PITCH_c: ['array', 'float32', 4],
        PID_ROLL_c:  ['array', 'float32', 4],

        PID_YAW_m:   ['array', 'float32', 4],
        PID_PITCH_m: ['array', 'float32', 4],
        PID_ROLL_m:  ['array', 'float32', 4],

        PID_BARO:    ['array', 'float32', 4],
        PID_SONAR:   ['array', 'float32', 4],
        PID_GPS:     ['array', 'float32', 4]
    }
};
*/

var eepromConfig = {
    version: 0,
    calibrateESC: 0,
    
    ACCEL_BIAS: [0, 0, 0],
    
    PID_YAW_c: [0.0, 0.0, 0.0, 0],
    PID_PITCH_c: [0.0, 0.0, 0.0, 0],
    PID_ROLL_c: [0.0, 0.0, 0.0, 0],
    
    PID_YAW_m: [0.0, 0.0, 0.0, 0],
    PID_PITCH_m: [0.0, 0.0, 0.0, 0],
    PID_ROLL_m: [0.0, 0.0, 0.0, 0],
    
    PID_BARO: [0.0, 0.0, 0.0, 0],
    PID_SONAR: [0.0, 0.0, 0.0, 0],
    PID_GPS: [0.0, 0.0, 0.0, 0],
};

DataView.prototype.getString = function(str_length, byteOffset) {
    var value = '';
    for (var i = 0; i < str_length; ++i) {
        var char = this.getUint8(byteOffset + i);
        value += String.fromCharCode(char > 127 ? 65533 : char);
    }

    return value;
}

DataView.prototype.getChar = function(byteOffset) {
    return this.getString(1, byteOffset);
}

DataView.prototype.parse = function (structure) {
    var needle = 0;
    
    structure.version = this.getUint8(needle);
    structure.calibrateESC = this.getUint8(needle++);
    
    for (var i = 0; i < structure.ACCEL_BIAS.length; i++) {
        structure.ACCEL_BIAS[i] = this.getInt16(needle);
        needle += 2;
    }
    
    for (var i = 0; i < structure.PID_YAW_c.length; i++) {
        structure.PID_YAW_c[i] = this.getFloat32(needle);
        needle += 4;
    } 
    
    console.log(eepromConfig);
}