The Pattern Display LUT Configuration command controls the execution of patterns stored in the lookup table (LUT). Before executing this command, stop the current pattern sequence.
Issue this command after any Pattern Display LUT Definition command is issued.
NOTES:
- This command makes all Pattern Display LUT Definition data effective and sets the Pattern Display LUT default order which displays all patterns in the DLPC900 pattern memory in the order they are defined by the pattern index in Pattern Display LUT Definition.
- When this command is executed any pattern that precedes a pattern with an input trigger in the Pattern Display LUT Definition, has a black pattern loaded at the end which causes the system to display a darkness until the trigger is received to start the triggered pattern. If the triggered pattern is the very first pattern in the Pattern Display LUT Definition then the very last pattern in the in the Pattern Display LUT Definition is treated as the
pattern preceding it.
Table 2-138 Pattern Display LUT Configuration Command
I2C |
USB |
Read |
Write |
0x1A31 |
0x75 |
0xF5 |
Table 2-139 Pattern Display LUT Configuration Command Definition
BYTE |
BITS |
DESCRIPTION |
RESET |
TYPE |
1:0 |
10:0 |
Number of LUT entries (NL):
- range 1 through 960 (for DLP5500 DMD)
- range 1 through 400 (for all other DMDs)
|
d0 |
wr |
1 = One entry |
2 = Two entries |
... |
- up to 960 entries (for DLP5500 DMD)
- up to 400 entries (for all other DMDs)
|
15:11 |
Reserved |
5:2 |
31:0 |
Number of patterns to display (NP):
- Set = 0 to repeat the sequence indefinitely
- Set = Number of patterns to display(1)
|
d0 |
wr |
(1) The number of patterns in the Pattern Display LUT Configuration to display (
NP).
Note: Set this equal to the Number of Pattern Display LUT entries (NL) to display the sequence once. Any number can be entered here to display the sequence multiple times. The pattern will display floor(NP/NL) times and any remainder (R) will display the first R Pattern Display LUT entries. For example if NP = 27 and NL = 5 the Pattern Display LUT sequence will display five times followed by the first two patterns
defined in the Pattern Display LUT.