Ocean Optics Flame-S, User Manual

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8: Firmware and Advanced Communications
70 225-00000-000-11-201604
Byte Format
Byte 0 Byte 1
0x05
Configuration
Index
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 … Byte 16
0x05 Configuration Index ASCII byte 0 ASCII byte 1
…
ASCII byte 14
Write Information
Writes any of the 19 stored spectrometer configuration variables to EEPROM. The 19
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 16
0x06 Configuration Index ASCII byte 0 ASCII byte 1
…
ASCII byte 14
Request Spectra
Initiates spectra acquisition. The Flame will acquire a complete spectrum (2048 pixel values).
The data is returned in bulk transfer mode through EP2. 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.
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.