Ocean Optics Flame-S - Page 79

8: Firmware and Advanced Communications
225-00000-000-11-201604 69
Byte Format
Byte 0
Byte 1
Byte 2
0x04
Data byte LSB
Data Byte MSB
Query Information
Queries any of the 20 stored spectrometer configuration variables. The Query command is sent
to End Point 1 Out and the data is retrieved through End Point 1 In. When using Query
Information to read EEPROM slots, data is returned as ASCII text. However, everything after
the first byte that is equal to numerical zero will be returned as garbage and should be ignored.
The 20 configuration variables are indexed as follows:
Configuration Index - Description
0 – Serial Number
1 – 0
th
order Wavelength Calibration Coefficient
2 – 1
st
order Wavelength Calibration Coefficient
3 – 2
nd
order Wavelength Calibration Coefficient
4 – 3
rd
order Wavelength Calibration Coefficient
5 – Stray light constant
6 – 0
th
order non-linearity correction coefficient
7 – 1
st
order non-linearity correction coefficient
8 – 2
nd
order non-linearity correction coefficient
9 – 3
rd
order non-linearity correction coefficient
10 – 4
th
order non-linearity correction coefficient
11 – 5
th
order non-linearity correction coefficient
12 – 6
th
order non-linearity correction coefficient
13 – 7
th
order non-linearity correction coefficient
14 – Polynomial order of non-linearity calibration
15 – Optical bench configuration: gg fff sss
gg – Grating #, fff – filter wavelength, sss – slit size
16 – Flame configuration: AWL V
A – Array coating Mfg, W – Array wavelength (VIS, UV, OFLV), L – L2 lens
installed, V – CPLD Version
17 – Reserved
18 – Reserved
19 – 29 User Configured