Texas Instruments DLP® LightCrafter™ Evaluation Module DLPLIGHTCRAFTER DLPLIGHTCRAFTER Datenbogen
Produktcode
DLPLIGHTCRAFTER
Creating Pattern Sequences
Figure 2-43. DLP LightCrafter GUI Hardwired Pattern Sequence Settings and Pattern Selection
NOTE:
While the DLP LightCrafter internally generates hardwired patterns, the "Upload All" button
still needs to be clicked after all hardwired patterns have been selected for each pattern.
2.8.1.2
Multiple Bit-Depth and Multiple Color Pattern Sequences
With the latest FPGA Firmware (version 2.6.43) and DM365 software (version 4 or above), the DLP
LightCrafter can run internal pattern sequences that use multiple bit depths and multiple colors (MBMC).
To create an MBMC pattern sequence, follow these steps:
LightCrafter can run internal pattern sequences that use multiple bit depths and multiple colors (MBMC).
To create an MBMC pattern sequence, follow these steps:
1. Submit MBMC pattern sequence requests on TI's E2E forum in the DLP LightCrafter Development
Platform subsection (
) by creating a post titled "MBMC Request" and provide the
following information:
•
Pattern Exposure time (250 µs < PExT
≤ 20000 µs).
–
This parameter influences the maximum bit-depth possible in the sequence for each pattern.
For example, if the exposure time is 1000 µs then it is only possible to have 1-bit or 2-bit depth
patterns. On the other hand, an exposure time
For example, if the exposure time is 1000 µs then it is only possible to have 1-bit or 2-bit depth
patterns. On the other hand, an exposure time
≥ 8333 µs supports patterns of all bit-depths
from 1 to 8. See
to find the minimum exposure time for each pattern’s bit-depth.
•
Patterns Sequence Information as shown in
.
–
Patterns must be listed in the order to be displayed.
–
Depending on the order of patterns with different bit-depths it is possible that there will be
unused bit-planes that still count towards the maximum 96 bit-planes. The system will not allow
split multiple bit-depth patterns across the 24-bit frame buffer boundaries. For example, in the
1st row of
unused bit-planes that still count towards the maximum 96 bit-planes. The system will not allow
split multiple bit-depth patterns across the 24-bit frame buffer boundaries. For example, in the
1st row of
, there are five, 5bpp patterns. This would translate to 5 x 5 = 25 individual
bit planes, but each frame buffer can only accommodate 24 individual binary frames. Therefore,
in a pattern sequence of five, 5-bit patterns, 20 reside in the first frame buffer, while the last 5-
bit plans reside in the next frame buffer. The 5bpp x 5 pattern set actually consumes 29
individual bit planes of the frame buffer:
in a pattern sequence of five, 5-bit patterns, 20 reside in the first frame buffer, while the last 5-
bit plans reside in the next frame buffer. The 5bpp x 5 pattern set actually consumes 29
individual bit planes of the frame buffer:
•
5bpp × 4 patterns + 4 unused patterns = 24 patterns (from the first frame buffer)
•
5bpp × 1 pattern = 5 patterns (from the second frame buffer)
•
Results in 24 + 5 = 29 individual binary patterns.
40
Operating the DLP LightCrafter
DLPU006C – January 2012 – Revised December 2013
Copyright © 2012–2013, Texas Instruments Incorporated