Trigger In mode provides higher level
of control to the user for displaying patterns. In this mode, the user controls when
to display the pattern by sending an external trigger signal to the DLPC3479
controller. The DLPC3479 controller outputs a Pattern Ready signal to let the user
know when the DLPC3479 controller is ready to accept the external trigger
signal.
- DLPC3479 controller sets the Pattern Ready signal high to
denote that the DLPC3479 controller is ready to accept Trigger In signal.
- The user sends the external trigger input signal to the
DLPC3479 controller to begin the display of the next pattern with
tExposure (exposure time), tDarkPre, and
tDarkPost (dark time).
- Blue LED is configured to be ON
for each pattern.
- TRIG_OUT_1 (Pattern Set Trigger) is configured active high
polarity and will have a minimum pulse width of 20 microseconds. TRIG_OUT_1
delay (tD1) is configured with respect to external trigger input
(TRIG_IN).
- TRIG_OUT_2 (Pattern Trigger) is configured active high polarity
and stays active during the pattern exposure. TRIG_OUT_2 delay (tD2)
is configured with reference to the start of each pattern exposure.