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DRV2604L Demonstration Program
4. Read the auto-calibration register values using I
2
C
5. Test using buttons B3 and B4
2.3
RAM Library Mode
Access the RAM library effects by holding the
+
button until the mode LEDs flash and the colored LEDs
flash ONCE.
Once in
Library Mode
the DRV2604L loaded RAM effects can be accessed in sequential order. For
example, with all Mode LEDs off, B1 is waveform 1, B2 is waveform 2, and so on. Then when Mode LED
M0 is on, B1 is waveform 5, B2 is waveform 6, and so on.
The equations for calculating the Mode and Button of an effect are:
Mode = RoundDown( [Effect No.] / 4 )
Button = ([Effect No.] – 1) % 4 + 1
% - modulo operator
To change between ERM and LRA:
1. Select mode 31 (11111'b) using the
+
or
–
buttons.
•
B1 – Press to select ERM
•
B2 – Press to select LRA
2. Then use the RAM effects as described above.
2.4
Waveform Library Effects List
Table 2
lists the descriptions of the waveforms embedded in the DRV2604L.
Table 2. Waveform Effects
Effect ID Waveform Name
1
Strong Click
2
Medium Click
3
Light Click
4
Tick
5
Bump
6
Strong Double Click
7
Medium Double Click
8
Light Double Click
9
Strong Triple Click
10
Buzz
11
Ramp Up
12
Ramp Down
13
Gallop Alert
14
Pulsing Alert
15
Test Click with Braking
16
Test Buzz with Braking
17
Life Test Buzz with Braking
18
Life Test Continuous Buzz
19
ERM OL 1 ms Interval Click
20
LRA OL 1 ms Interval Click
21
ERM/LRA Click for 5 ms playback interval
22
ERM/LRA Click for 1 ms playback interval
11
SLOU390A – May 2014 – Revised June 2014
DRV2604L ERM, LRA Haptic Driver Evaluation Kit
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