QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 914
MAIN/CAM LED CONTROLLER
LTC3210
4
board, the ribbon cable has been discon-
nected, or when the PIC RESET push button
has been depressed.
GRADATION Cycle Button –
This button
may be selected to start or stop the
GRADATION Cycle. The GRADATION Cycle
cycles through the brightness levels of all the
LEDs starting from the lowest to the highest
intensity and then back to the lowest. To in-
crease the LED intensity, the enable pins are
held low for the set PULSE TSD time prior to
the first pulse of each step. After the highest
intensity is reached, the intensity is then de-
creased by a single low pulse equal to the
PULSE TOFF time for each step. This decre-
ments the internal counter by one from the
previous setting. This is done until the lowest
setting is reached. This cycle is repeated until
the GRADATION Cycle button is selected
again or until the LEDS OFF button is se-
lected.
LEDS OFF Button –
This button turns off all
of the LEDs and turns off GRADATION Cycle.
PIC RESET Push Button –
This button is lo-
cated on the DC914 demo board. It Resets
the PIC when depressed. The reset button will
not update or change the demo control win-
dow. The UPDATE
button may be used to up-
date the PIC to the current demo control win-
dow settings.
