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4.4.
LED Configuration (PSKEY_USR3)
This section describes how to create an LED pattern. Every application state must have an associated LED pattern
defined, this pattern could be blank (if required), but must still be defined.
Note:
LED patterns are continuously looped while the application state is valid for the configured pattern.
The subwoofer LED patterns have been implemented to follow configured plots, there must be three plots (one for
each supported LED) for each LED pattern. Each plot is time plotted against LED intensity.
Table 4.1 lists the data structure for each LED pattern.
ID
Mandatory
Description
TIME_MULTIPLIER
M
Measured in milliseconds, this is a multiplier used by the plot (to save on data
footprint)
NUM_POINTS_A
M
The number of plotted points for LED_A
NUM_POINTS_B
M
The number of plotted points for LED_B
NUM_POINTS_C
M
The number of plotted points for LED_C
POINTS A
C.1
The first plot point for LED_A
D.1
Intermediate plot point(s) for LED_B
C.1
The Last plot point for LED_A
POINTS B
C.2
The first plot point for LED_B
D.2
Intermediate plot point(s) for LED_B
C.2
The last plot point for LED_B
POINTS C
C.3
The first plot point for LED_C
D.3
Intermediate plot point(s) for LED_C
C.3
The last plot point for LED_C
Notes:
If NUM_POINTS_A is not zero, C.1 is mandatory
If NUM_POINTS_B is not zero, C.2 is mandatory
If NUM_POINTS_C is not zero, C.3 is mandatory
D.1: If NUM_POINTS_A is greater than 2, the required number of intermediate plot points is defined such that
the sum of the first plot point, all intermediate plot points and the last plot point is equal to the number of plot
points defined by NUM_POINTS_A
D.2: If NUM_POINTS_B is greater than 2, the required number of intermediate plot points is defined such that
the sum of the first plot point, all intermediate plot points and the last plot point is equal to the number of plot
points defined by NUM_POINTS_B
D.1:If NUM_POINTS_C is greater than 2, the required number of intermediate plot points is defined such that
the sum of the first plot point, all intermediate plot points and the last plot point is equal to the number of plot
points defined by NUM_POINTS_C
Table 4.5: LED Pattern Data Structure
