Texas Instruments DRV2605LEVM-MD, User Manual

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T
I C
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fid
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tial
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N
D
A
R
e
s
tr
ictio
n
s U
SB
VBAT
SBW
MSP430
OUT8 OUT7 OUT6 OUT5
OUT4 OUT3 OUT2 OUT1
DRV2605L
DRV2605L DRV2605L DRV2605L DRV2605L
DRV2605L DRV2605L DRV2605L
BSL RESET
USER SW
TCA9548A
TCA9554A
B1
B2
LRA
ERM
D
R
V
MSP
ERM ERM ERM
LRA LRA LRA
DRV2605L Demonstration Program
www.ti.com
– Mode 3 – Drivers 5 through 8 are enabled, RTP mode is setup, and all drivers are played
simultaneously
– Mode 4 – Driver 1 through 4 are setup in RTP mode, played sequentially in order, and then briefly
played simultaneously.
– Mode 5 – Driver 5 through 8 are setup in RTP mode, played sequentially in order, and then briefly
played simultaneously.
• USER SW: Turns on USB communication and disables capacitive touch buttons
Figure 4. Board With Actuator Setup
Figure 4 shows the actuator setup of where the LRAs and ERMs are connected to the board. B1 and B2
are the capacitive touch buttons that, when pressed, play the waveform sequence as described in
Section 3.1 and Section 3.2 .
3.1 Button 1
For button 1, each of the DRV2605L devices is independently setup for RTP mode at full magnitude 0x7F
and played sequentially. Each press of the capacitive touch button plays the next driver. The TCA9548A
device (I
2
C switch) is configured so that only the corresponding DRV2605L device is connected to the
master input I
2
C bus. When the configuration is complete, default register settings, RTP mode, and the
RTP magnitude are sent to the DRV2605L device. After some time, the RTP mode shuts off.
3.2 Button 2
Button2 has 5 modes that can be accessed through sequential button presses. The user must sequentially
cycle through all of the other modes to get back into the same mode.
3.2.1 Mode 1
Mode 1 allows the user full access to all of the DRV2605L devices on the board by enabling them and
connecting all of the I
2
C lines. An external host processor can be connected to the I
2
C headers to allow
communication to the DRV2605L devices without having to use the on-board MSP430F5510.
4 DRV2605L Multi-Driver ERM, LRA Haptic Driver Evaluation Kit User’s Guide SLOU400 – September 2014
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