Ocean Optics Flame-S, User Manual

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8: Firmware and Advanced Communications
225-00000-000-11-201604 95
Byte Format
Byte 0 Byte 1
0x05 Data byte
Return Format (EP1)
The data is returned in ASCII format and read in by the host through End Point 1.
Byte 0 Byte 1 Byte 2 Byte 3 …
0x05 Configuration Index ASCII byte 0 ASCII byte 1
…
Write Information
Writes any of the 31 stored spectrometer configuration variables to EEPROM. The 31
configuration variables are indexed as described in the Query Information. The information to
be written is transferred as ASCII information.
Byte Format
Byte 0 Byte 1 Byte 2 Byte 3 … Byte 17
0x06 Configuration Index ASCII byte 0 ASCII byte 1
…
ASCII byte 15
Request Spectra
Initiates a spectral acquisition. The Flame will acquire a complete spectrum (3840 pixel values).
The data is returned in bulk transfer mode through EP2 and EP6 depending on the USB
Communication Speed. The table below provides the pixel order overview for the 2 different
speeds. The pixel values are decoded as described below.
Byte Format
Byte 0
0x09
Return Format
The format for the returned spectral data is dependent upon the USB communication speed.
The format for both High Speed (480 Mbps) and Full Speed (12Mbps) is shown below. All pixel
values are 16 bit values which are organized in LSB | MSB order. There is an additional packet
containing one value that is used as a flag to insure proper synchronization between the PC and
Flame.