Texas Instruments DLP LightCrafter 4500 User Manual page 33

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6. If the patterns sequence must be played once, set Play Once in
number of patterns set in Trigger Controls subtab under Trigger 2 Patterns per pulse. If set to 1, it
plays the first pattern in the sequence and stops. If set to 10, it plays the first 10 patterns in the
sequence. If the pattern sequence is to continuously repeat, set repeat. Make sure to click the Send
button after clicking on Play Once to download the new settings.
7. Clicking send will jump the GUI to the Pattern Sequence Start/Stop/Pause subtab as seen in
6. Clicking the Validate Sequence button executes a data validation and updates the Data Validation
status indicators in this tab. If the data validates successfully, the pattern sequence is downloaded to
the DLP LightCrafter 4500 and waits for the Play button to be pressed to start displaying the pattern
sequence.
If a data validation problem occurs, the appropriate status indicators are highlighted in the Data
Validation section:
• Exposure/Period OOR: When highlighted red, the Pattern Exposure period or Frame period is out
of range. The pattern exposure period must be greater than the fastest period supported, as listed
in Table 4-1.
• Pattern Number OOR: When highlighted red, the Pattern Number is out of range. The maximum
allowed patterns depend on the bit width and are listed in
• Cont trig out overlaps black: When highlighted red, the continuous pattern exposure has a trigger
Out1 request or overlapping black sectors.
• Black vector missing: When highlighted red, the black vector is missing (this may also be referred
to as the post vector).
• Period, Exposure diff < 230: When highlighted red, the difference between the frame period or
internal trigger period and the exposure period of a pattern is less than 230 µs. The DMD needs
230 µs for load a pattern, so the trigger or frame period must be 230 µs greater than the pattern
exposure time.
8. Pause or restart the pattern sequence through the Pause and Play buttons, respectively. If a pattern
sequence was previously loaded, the user can click the Read button to load the sequence into the GUI
window.
The Pattern Sequence section in the Sequence Settings tab shows the pattern sequence as a set of
colored rectangles. The color corresponds to the LEDs used. The entries on the rectangles represent the
image source, the bit-plane, and the bit-depth as follows: S0::G0 (1) indicates flash location 0, bit-plane =
G0, bit-depth = 1. F2::G5 (3) indicates Frame 2, bit-plane = G5, bit-depth = 3. For example, in
a pattern sequence of three patterns is displayed. Each pattern is triggered every 500 ms and exposed for
500 ms. The first pattern is a 1-bit red pattern using bit-plane G0 from flash location 0. The second pattern
is a 1-bit green pattern using bit-plane G1 from flash location 0. The third pattern is a 1-bit yellow pattern
using bit-plane G2 from flash location 0.
A pulse icon in between the patterns indicates that a trigger is needed between the patterns. Right-clicking
on this icon allows the removal of the trigger, so two or more patterns can share the same trigger and are
exposed in sequence for the total exposure time. Right-clicking on a pattern allows the option of inverting
the pattern, removing the pattern, or inserting a black image by clearing the DMD after exposure time.
DLPU011E – July 2013 – Revised September 2015
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Pattern Sequence Mode
Figure 3-5. This setting will play the
Table 4-1.
Operating the DLP LightCrafter 4500
Figure 3-
Figure 3-5,
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