Ocean Optics Flame-S, Руководство пользователя

Страница: 83 / 130

8: Firmware and Advanced Communications
225-00000-000-11-201604 73
Where:
XX = reserved bytes (most are either unused or are only used internally to the device)
SS = saturation level of the device as two bytes (LSB followed by MSB).
These need to be assembled into a single 16-bit value. Any time that a spectrum is read from
the spectrometer, each pixel’s intensity value should be multiplied by (65535.0/saturation_level)
to set the scale appropriately.
The contents of slot 0x11 are set at the factory and should not be altered.
Set Trigger Mode
Sets the Flame Trigger mode to one of four states. If an unacceptable value is passed then the
trigger state is unchanged (refer to the
External Triggering Options Instructions
for a description
of the trigger modes).
Data Value = 0

Normal (Free running) Mode
Data Value = 1

External Hardware Level Trigger Mode
Data Value = 2

External Synchronization Trigger Mode
Data Value = 3

External Hardware Edge Trigger Mode
Byte Format
Byte 0 Byte 1 Byte 2
0x0A Data Value LSB Data Value MSB
Query Number of Plug-in Accessories
To query the number of preset plug-in accessories, use the Query Plug-in Identifiers command
0x0C (below), matching plug-in IDs to the known IDs.
Query Plug-in Identifiers
Queries the Plug-in accessories identifiers. This command returns 7 bytes with the last byte
always being zero at this point. Each of the first 6 bytes correspond to Ocean Optics compatible
devices which responded appropriately for I
2
C addresses 2 through 7 respectively. The I
2
C
addresses are reserved for various categories of devices and the value for each category is
shown below. I
2
C addresses 0-1 are reserved for loading program code from EEPROMS
Byte Format
Byte 0
0x0C