FEASA LED ANALYSER
ICT VERSION
In-Circuit Test Mode
In-Circuit Test Mode
In addition to the RS232 Serial Port Communications the Led Analyser provides a Port for In-
Circuit Testing. There are two methods that can be used with this Interface. The first method
uses frequencies to represent the data for each LED. The second method uses a Synchronous
Serial digital mode to read the data. The Frequency method is easier to implement and debug
while the Synchronous Serial method is more complex but is faster especially for large
numbers of LED's, it also uses less resources. By default the Analyser is supplied with
Synchronous Serial Mode and Frequency Out HSI Mode enabled.
The LED Analyser is set to the Frequency Output - HSI (Hue, Saturation, Intensity) mode at
the Factory. There are two further frequency out options , WSI (Wavelength, Saturation,
Intensity) and xyI (X chromaticity, Y chromaticity, Intensity). To place the analyser in WSI
mode the command setfrequencywsi must be sent to the analyser. To place the analyser in xyI
mode the command setfrequencyxyi must be sent to the analyser.
The command getICTStatus will display which modes have been selected. The configuration is
stored in Flash memory and need only be implemented once i.e. It will remain in the selected
mode until instructed to change.
Summary of Commands:
getictstatus: This will indicated which modes the analyser is set for.
setfrequencyhsi Set the Analyser to Frequency Mode measuring HSI
setfrequencywsi Set the Analyser to Frequency Mode measuring WSI
setfrequencyxyi Set the Analyser to Frequency Mode measuring XYI
Back to Index
15
To Next Page
Loading...
Need help?
General
