Feasa ICT Series User Manual

FEASA LED ANALYSER
ICT VERSION
Get Data Mode
getUV## - Return the u'v' Chromaticity values
Transmit Receive
getuv##
getuvall
0.uuuu 0.vvvv
Where:
## represents the Fiber Number and is a number in the range 01 – 20.
0.uuuu represents the u Chromaticity value
0.vvvv represents the v Chromaticity value
Description
This command is used to return the uv Chromaticity value for the LED under the Fiber number
##. This command is used for testing White LED's.
The u'v' values are derived from the xy Chromaticity co-ordinates including any xy offsets that
may be applied.
This command should be preceded by a capture command to ensure valid LED data is stored
in the memory of the LED Analyser. The data for each LED can only be read out one-at-the-
time, in any order. Note: it is important for the PC to use 01, 02, 03, etc to indicate Fibers 1,
2 and 3, etc.
Alternatively use the getuvall command to read back the LED data for all 20 leds in
one command.
Example:
The PC transmits getuv01 to the LED Analyser to instruct it to send the stored xy
Chromaticity data for the LED positioned under Fiber No 1. The LED Analyser will return a
string 0.uuuu 0.vvvv to the PC.
getuv01
0.1809 0.4414
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Feasa ICT Series Specifications

General

Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to 70°C
Application	LED testing
Channels	1
Communication Interface	USB
Power Source	USB
Measurement Parameters	Dominant Wavelength, CCT, CRI
Accuracy	±2% in flux

Summary

About this Manual

IMPORTANT INFORMATION for Programmers

Colour and Saturation

Intensity

White LED's

Setting Tolerance Limits for Colour and Intensity

In-Circuit Test Mode

Frequency Out Port Protocol

Details the protocol for data output via frequency signals.

ICT Connector Pin-out and Descriptions

Lists and describes the function of each pin on the ICT connector.

ICT Logic Levels & Cycle Times

Specifies electrical characteristics and timing for ICT interface.

In-Circuit Test Frequency Mode

Initialize the LED Analyser for Capture

Describes the procedure to initialize the analyser for data capture.

Set the Sensitivity Level of the Analyser (setfactor)

Capture LED Data (HSI or WSI or xyI) non PWM LED's

Capture LED Data (HSI or WSI or xyI) PWM LED's

Synchronous Serial Mode

Synchronous Serial Commands

Lists commands executable via the Synchronous Serial Port.

Capture for non-PWM LED's

Read Hue, Saturation and Intensity (HSI)

Read RGB and Intensity (RGBI)

Serial Port Control (RS232)

Capture Commands

AUTO CAPTURE - Store LED Data

Command to automatically capture and store LED data.

MANUAL CAPTURE# - Store LED Data for a specific range

Command to capture and store LED data for a specified range.

Get Data Commands

Under Range Condition

Describes conditions when LED light is insufficient for the selected range.

Over Range Condition

Describes conditions when LED light is excessive for the selected range.

getRGBI## - Get RGB and Intensity for a LED

getHSI## - Get Hue, Saturation and Intensity

General Commands

General Set Commands

Commands for adjusting various settings of the LED Analyser.

set/putFACTOR## - Set the Exposure Factor

set/putLOG - Change the Intensity Response of the Analyser to Logarithmic mode

General Get Commands

getSTATUS - Get a summary of the Led Analyser details

Retrieves a summary of the Analyser's configuration and status.

User Calibration Mode

setcalibration# - Select the user cal setting

Selects a specific user calibration set.

ResetUserCal - Reset the usercal setting to factory default

Resets the selected user calibration set to factory default values.

External Capture Mode

Set up the external capture

Configures the external capture function.

Sequence Capture Mode

Set/Put SequenceMode# - Set sequence mode for Fibers

Sets the sequence mode for using all or individual fibers.

Set/Put SequenceCapture##(#) - Set Sequence Capture Time

Sets the capture time in milliseconds for sequence capture.

Set/Put SequenceNumber###(#) - Set the Number of Captures

Sets the number of captures to store in sequence mode.

Set/Put SequenceThreshold##### - Set the Intensity Threshold

Sets an intensity threshold for binary conversion of readings.

CaptureSequence - Start the Captures

Starts the sequence capture function.

Step-by-Step approach to Testing a LED

PWM LED Mode

Effect of PWM on Intensity Testing

Explains the effect of PWM on intensity testing.

Testing a 7-Segment Display

Specifications

Warranty