Table of Contents
Advertisement
www.ti.com
•
B4 – No function
3. Choose either the on-board ERM or LRA using buttons B1 or B2.
4. Apply the PWM signal to the PWM test point at the top of the board.
4.5
External Trigger Control
AUDIO
MSP430
PWM/
GPIO
JP1
Shorted
Open
The DRV2604 internal waveform sequencer can be triggered by controlling the IN/TRIG pin. There are
two external trigger options: edge trigger and level trigger. See the data sheet for more information on
these Input Trigger Modes.
In Mode 0 in the
Additional Hardware Modes
and then triggered by using the trigger button control on button B4 or alternatively by applying an external
trigger signal to the PWM test point.
4.5.1
MSP430 Trigger Control
1. Enter
Additional Hardware
2. Select Mode 0 (00000'b) using the increment mode button (+).
•
B1 – Select the on-board ERM
•
B2 – Select the on-board LRA
•
B3 – Trigger Select (1 = Internal Trigger, 2 = Ext. Edge, 3 = Ext. Level)
•
B4 – Trigger the waveform sequence using the MSP430.
3. Fill the waveform sequencer with waveforms using the external I
4. Choose either the on-board ERM or LRA using buttons B1 or B2.
5. Select either External Edge (2) or External Level (3) trigger using the B3 button. The trigger type
appears in binary on the mode LEDs.
6. Apply the trigger signal to the IN/TRIG pin by pressing the B4 button.
SLOU355 – March 2013
Submit Documentation Feedback
R40, 0Q
R41, NP
R43, 0Q
C11
R8
P3.1
JP1
SDA
SCL
SDA SCL
Figure 16. External Trigger Control
PWM Source
MSP430
External GPIO using PWM test point
Modes.
Copyright © 2013, Texas Instruments Incorporated
EN
PWM
EN
IN/TRIG
SDA
SCL
section, the DRV2604 can be set in external trigger mode
2
C port.
DRV2604 ERM, LRA Haptic Driver Evaluation Kit
Hardware Configuration
DRV2604
OUT+
GND
VDD
OUT-
15
Advertisement
Table of Contents
