Renesas DA728 Series User manual

NDA Confidential
User Manual
DA728x Motherboard 359-05-B
UM-HA-001
Abstract
This document describes the functionality of Dialog's DA728x haptic driver motherboard 359-05-B
and its use along with the DA728x daughterboards to allow functional demonstration and evaluation
to be carried out.

UM-HA-001
DA728x Motherboard 359-05-B
Preliminary for Use with
Evaluation Kit
User Manual
CFR0012
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Contents
Abstract ................................................................................................................................................ 1
1 Terms and Definitions ................................................................................................................... 5
2 References ..................................................................................................................................... 5
3 Introduction.................................................................................................................................... 6
4 DA728x Motherboard 359-05-B PCB Layout and Connections ................................................ 6
5 Hardware and Software Prerequisites ........................................................................................ 8
6 Quick Start Setup (Using DA7280 Daughterboard as an Example) ......................................... 8
6.1 Hardware Configuration........................................................................................................ 8
6.2 Configuration Steps............................................................................................................... 9
7 SmartCanvas DA728x GUI Setup ............................................................................................... 10
7.1 Manual Driver Installation.................................................................................................... 13
8 DA728x Motherboard Hardware Overview ................................................................................ 14
8.1 Power.................................................................................................................................. 15
8.2 I2C Communications ...........................................................................................................15
8.3 Plug-in Daughterboards...................................................................................................... 16
8.3.1 DA7280 Daughterboard....................................................................................... 17
8.3.2 DA7281 Daughterboard....................................................................................... 18
8.3.3 DA7282 Daughterboard....................................................................................... 19
8.3.4 DA7283 Daughterboard.......................................................................................20
8.4 Analog Accelerometer......................................................................................................... 21
8.5 Digital Accelerometer.......................................................................................................... 22
8.6 Plastic Mass Connection.....................................................................................................22
8.7 Additional LRA Connection.................................................................................................23
9Software Control ......................................................................................................................... 24
9.1 LRA Configuration Scripts................................................................................................... 26
9.1.1 Load LRA Configuration scripts...........................................................................26
9.1.2 Save All Registers ...............................................................................................27
9.1.3 Configuration Scripts for Supplied LRA...............................................................28
9.2 Operation Modes................................................................................................................. 37
9.2.1 Direct Register Override (DRO)........................................................................... 37
9.2.2 Register Triggered Waveform Memory (RTWM)................................................. 38
9.2.3 Playback from PWM Data Source....................................................................... 39
9.2.4 Edge Triggered Waveform Memory (ETWM)......................................................40
9.3 Waveform Memory Editor ...................................................................................................40
9.3.1 Snippets Tab........................................................................................................41
9.3.2 Sequences Tab....................................................................................................42
9.4 Wav to Haptics Converter................................................................................................... 43
9.5 IRQ and Faults....................................................................................................................45
9.6 CapSense Setup.................................................................................................................46
9.6.1 GPI Triggering from GUI...................................................................................... 47
10 Monitoring Drive Signals and Measuring Acceleration ........................................................... 49
10.1 Analogue Accelerometer.....................................................................................................49
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10.2 Digital Accelerometer.......................................................................................................... 50
11 Measuring Current on VDD and VDDIO .................................................................................... 52
12 Measuring Current Going through LRA .................................................................................... 53
13 Connecting Multiple Devices on the Same I2C Bus ................................................................ 54
13.1 I2C Scan Tool ..................................................................................................................... 56
Revision History ................................................................................................................................ 57
Figures
Figure 1: Bare 359-05-B motherboard .................................................................................................. 6
Figure 2: DA728x Motherboard 359-05-B PCB Layout......................................................................... 6
Figure 3: DA728x Motherboard Operation with LRA Attached to DA7280 Daughterboard.................. 8
Figure 4: DA728x Motherboard Operation with LRA Attached to DA728x Motherboard...................... 9
Figure 5: Placement of DA728x Motherboard for Optimal Haptic Feedback Measurements............. 10
Figure 6: License Agreement .............................................................................................................. 10
Figure 7: Select Installation Location ..................................................................................................11
Figure 8: Select Start Menu Folder ..................................................................................................... 11
Figure 9: Create a Desktop Item .........................................................................................................12
Figure 10: Install the SmartCanvas DA728x GUI................................................................................12
Figure 11: Finish Setup ....................................................................................................................... 13
Figure 12: Installing Driver Windows Notification................................................................................ 13
Figure 13: Installation Complete.......................................................................................................... 13
Figure 14: Desktop Icon ......................................................................................................................13
Figure 15: DA728X Motherboard Functionality................................................................................... 14
Figure 16: Daughterboard Insertion .................................................................................................... 16
Figure 17: Daughterboard Fully Inserted with Release Tabs Shown.................................................. 17
Figure 18: DA7280 Daughterboard .....................................................................................................17
Figure 19: DA7281 Daughterboard .....................................................................................................18
Figure 20: DA7282 Daughterboard .....................................................................................................19
Figure 21: DA7283 Daughterboard .....................................................................................................20
Figure 22: DA728x Motherboard PCB Combined with Plastic Mass as 100 g ................................... 23
Figure 23: DA728x Motherboard Board Setup with DA7280 Daughterboard Connected................... 25
Figure 24: Main SmartCanvas DA728x GUI Window ......................................................................... 25
Figure 25: File I/O................................................................................................................................27
Figure 26: Load Register Dump..........................................................................................................27
Figure 27: Old and New Format Script Files....................................................................................... 28
Figure 28: JAHWA 1040 LRA Characteristics Graph..........................................................................29
Figure 29: JAHWA_1040_FREQ_TRACK_ON Parameters...........................................................................30
Figure 30: JAHWA_1040_FREQ_TRACK_ON Sequences...........................................................................31
Figure 31: JAHWA_1040_FREQ_TRACK_ON_RS_ON Parameters ...............................................................32
Figure 32: JAHWA_1040_FREQ_TRACK_ON_RS_ON Sequences................................................................33
Figure 33: JAHWA_1040_FREQ_TRACK_OFF_SINE Parameters ...............................................................34
Figure 34: JAHWA_1040_FREQ_TRACK_OFF_SINE Sequences................................................................35
Figure 35: JAHWA_1040_FREQ_TRACK_ON(2xLRA-IN-PARALLEL) Sequences ....................................... 36
Figure 36: Drive Type.......................................................................................................................... 37
Figure 37: Operation Mode.................................................................................................................. 37
Figure 38: SmartCanvas DA728x GUI in DRO Mode .........................................................................38
Figure 39: SmartCanvas DA728x GUI in RTWM Mode...................................................................... 39
Figure 40: GPI Registers.....................................................................................................................40
Figure 41: Enabling the Waveform Memory Editor in DA728x GUI .................................................... 40
Figure 42: Register Syncing from DA728x Memory............................................................................41
Figure 43: Waveform Memory Editor Snippets Tab............................................................................41
Figure 44: Waveform Memory Editor Sequences Tab........................................................................ 42
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Figure 45: Two Snippet Sequence Example.......................................................................................43
Figure 46: Snippets for the Two Snippet Sequence Example.............................................................43
Figure 47: Launching Wav to Haptics Converter.................................................................................43
Figure 48: Wav to Haptics Converter Plugin ....................................................................................... 44
Figure 49: Included Sound Effect Files ...............................................................................................44
Figure 50: Detailed Descriptions of Controls....................................................................................... 45
Figure 51: IRQ Tab.............................................................................................................................. 45
Figure 52: Clear IRQ Events and Faults ............................................................................................. 46
Figure 53: Embedded Mode................................................................................................................ 46
Figure 54: SAM3U Configuration ........................................................................................................46
Figure 55: ETWM Mode ......................................................................................................................47
Figure 56: GPI_0_CTL Settings ..........................................................................................................47
Figure 57: Controlling GPIs from GUI .................................................................................................48
Figure 58: Monitoring Signals.............................................................................................................. 49
Figure 59: Measured Output Signals and Acceleration Profile ...........................................................50
Figure 60: Digital Accelerometer.........................................................................................................50
Figure 61: Digital Accelerometer GUI..................................................................................................51
Figure 62: Current Measurement and External Supply Connections....Error! Bookmark not defined.
Figure 63: Current measurement of drive current into LRA ................................................................53
Figure 64: Green/Yellow Drive Signals (Sine Wave Mode), Magenta = Current Probe Output ......... 53
Figure 65: DA728x Motherboard configuration for multiple DA7281 Daughterboards ....................... 54
Figure 66: Changing I2C Address Settings......................................................................................... 55
Figure 67: DA728x Motherboard with Four DA7281 Daughterboards Stacked..................................56
Figure 68: I2C Scan Tool.....................................................................................................................56
Tables
Table 1: Jumper Connections and Descriptions ................................................................................... 7
Table 2: JAHWA 1040 Configuration script Details............................................................................. 29
Table 3: JAHWA_1040_FREQ_TRACK_ON Script Features:....................................................................... 30
Table 4: JAHWA_1040_FREQ_TRACK_ON_RS_ON Script Features:............................................................ 31
Table 5: JAHWA_1040_FREQ_TRACK_OFF_SINE Script Features:............................................................ 33
Table 6: JAHWA_1040_FREQ_TRACK_ON Script Features:.......................................................................35
Table 7: I2C Hex/Binary Settings for DA7281.....................................................................................55
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1 Terms and Definitions
NOTE: "X" can denote different version of boards such as A and B variants
359-05-x DA728x Motherboard, containing LRA as well as the digital and analogue
accelerometer circuitry
359-06-x DA7280 Daughterboard
359-07-x DA7281 Daughterboard
359-08-x DA7282 Daughterboard
359-09-x DA7283 Daughterboard
DA7280 Dialog Semiconductor's haptic driver integrated circuit
DA7281 DA7280 variant with I2C address select
DA7282 DA7280 variant with ultra-low power shutdown
DA7283 DA7280 variant without I2C control and with ultra-low power shutdown
DUT Device under test
ERM Eccentric Rotating Mass
GUI Graphical User Interface
I2C Inter-Integrated Circuit Communication Standard
LRA Linear Resonant Actuator
PCB Printed Circuit Board
PWM Pulse Width Modulation
BEMF Back Electro-Motive Force
2 References
[1] DA7280, Datasheet, Dialog Semiconductor.
[2] DA7281, Datasheet, Dialog Semiconductor.
[3] DA7282, Datasheet, Dialog Semiconductor.
[4] DA7283, Datasheet, Dialog Semiconductor.
[5] DA7280 Daughterboard User Manual, User Manual, Dialog Semiconductor.
[6] DA7281 Daughterboard User Manual, User Manual, Dialog Semiconductor.
[7] DA7282 Daughterboard User Manual, User Manual, Dialog Semiconductor.
[8] DA7283 Daughterboard User Manual, User Manual, Dialog Semiconductor.
[9] DA728x GUI software
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3 Introduction
This document describes the use and connections of DA728x Motherboard 359-05-X to allow the
evaluation of the DA728x family of devices. Figure 1 shows a picture of the DA728x Motherboard
359-05-B. A PCB layout is shown in Figure 2 and the details of all the jumper connections are listed
in Table 1.
Figure 1: Bare 359-05-B motherboard
4 DA728x Motherboard 359-05-B PCB Layout and Connections
Figure 2: DA728x Motherboard 359-05-B PCB Layout
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Table 1: Jumper Connections and Descriptions
Jumper/Test
Point (TP)
Pin/Connection
Description
J1
VDDIO
[Default: short 1 to 3]
VDDIO current monitoring or supply option, default level
1.8 V
VDD
[Default: short 2 to 4]
VDD current monitoring or supply option, default level 3.8
V
J2
OUTN-F
Filtered version of negative output
Bandwidth limited to 3.38 kHz for output waveform
analysis via an oscilloscope (pin 1 and pin 3 are shorted
on the PCB)
OUTP-F
Filtered version of positive output
Bandwidth limited to 3.38 kHz for output waveform
analysis via an oscilloscope (pin 2 and pin 4 are shorted
on the PCB)
J3
OUTP
Positive output for LRA connection (pin 1 and pin 3 are
shorted on the PCB. TP4 can also be used)
OUTN
Negative output for LRA connection (pin 2 and pin 4 are
shorted on the PCB. TP5 can also be used)
J4
TOUCH 2
Pin 1: touch button B2 signal
TOUCH 1
Pin 3: touch button B1 signal
TOUCH 0
Pin 5: touch button B0 signal
I2C_SDA
Pin 7: I2C data line (no pull-up fitted as this is on the
daughtercard)
I2C_SCL
Pin 9 I2C clock line (no pull-up fitted as this is on the
daughtercard)
NIRQ
Pin 11 interrupt trigger, open drain output (no pull-up fitted
on motherboard, pull-up located on the daughtercard)
GND
Pins 2, 4, 6, 8, and 10 = Ground reference
J5
Z-AXIS
Pin 1: Z-axis accelerometer output
Y-AXIS
Pin 3: Y-axis accelerometer output
X-AXIS
Pin 5: X-axis accelerometer output
GND
Pins 2, 4, and 6 = Ground reference
J6
USB
USB-C type connector used to supply power to the
motherboard and the source of control signals via the
SmartCanvas DA728x GUI
J7
OUTN
Negative output for LRA connection (pin 1 and pin 2
should be shorted to enable TP7)
OUTP
Positive output for LRA connection (pin 3 and pin 4 should
be shorted to enable TP8)
J8
OUTN
Negative output for LRA connection (pin 1 and pin 2
should be shorted to enable TP9)
OUTP
Positive output for LRA connection (pin 3 and 4 should be
shorted to enable TP10)
J9
Mechanical lock for the
DA728x daughterboard
Used to hold the daughterboard in place when fitted
J10
Socket for the DA728x
daughterboard
Electrical connections to/from the DA728x daughterboard
when fitted
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Jumper/Test
Point (TP)
Pin/Connection
Description
J11
OUTN
Negative output for LRA connection (pin 1 and pin 2
should be shorted to enable TP11)
OUTP
Positive output for LRA connection (pin 3 and pin 4 should
be shorted to enable TP12)
J12
OUTN
Negative output for LRA connection (pin 1 and pin 2
should be shorted to enable TP14)
OUTP
Positive output for LRA connection (pin 3 and pin 4 should
be shorted to enable TP15)
J13
OUTN
[Default - short 1 to 2]
Negative output for LRA connection (pin 1 and pin 2
should be shorted to enable TP16)
OUTP
[Default - short 3 to 4]
Positive output for LRA connection (pin 3 and pin 4 should
be shorted to enable TP17)
TP1, TP2, TP3,
and TP6
GND
Ground reference (ideal for scope probe reference clips)
5 Hardware and Software Prerequisites
The GUI must be installed before the DA728x Motherboard hardware is connected to a Windows®7
or Windows®10 operating system. The DA728x GUI installation file is included on the USB stick
contained within the Evaluation Board kit. Run the setup_DA728x_GUI_0.0.0.27.exe file from the
\Software folder to start the installation.
The latest version of the SmartCanvas DA728x GUI can also be found on Dialog’s support portal
(https://support.dialog-semiconductor.com/) under the PMIC, Audio and Haptics section.
6 Quick Start Setup (Using DA7280 Daughterboard as an
Example)
6.1 Hardware Configuration
To USB port
LRA
Figure 3: DA728x Motherboard Operation with LRA Attached to DA7280 Daughterboard
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To USB port
LRA
Figure 4: DA728x Motherboard Operation with LRA Attached to DA728x Motherboard
6.2 Configuration Steps
1. Install the SmartCanvas DA728x GUI (see chapter 5).
2. Plug the DA7280 daughterboard into the J10 connector of the DA728x motherboard and ensure
that it is fully inserted and the clips on J9 secure the daughterboard in place.
3. Connect the USB cable from the computer to the connector J6 on the DA728x motherboard and
ensure that it is fully inserted into the connector.
a. If this is the first time a Dialog’s board is connected to the computer, Windows will
automatically install Dialog’s USB Drivers.
4. If the LRA is attached to the DA728x Motherboard as shown in Figure 4, ensure that the jumper
is attached to J11 on the DA728x Motherboard so that the DA7280 daughterboard is connected
to the attached LRA. Please note that this is the recommended method of LRA attachment if
performance measurements are being made with the on-board accelerometer.
a. It is not required to attach the jumper to J11 if the LRA is attached to the DA7280
daughterboard as shown in Figure 3.
5. For the best feedback performance, the DA728x Motherboard should be isolated from hard
surfaces as they can dampen the haptic effect. Placing the DA728x Motherboard on a layer of
foam is a good solution (Figure 5).
6. Open the SmartCanvas DA728x GUI.
7. In the popup window click the Download Jahwa 1040 defaults as shown in Figure 23. This sets up
the DA7280 daughterboard to work with the CapSense buttons (B0, B1, and B2) on the DA728x
Motherboard.
8. Touching B0, B1, or B2 CapSense buttons on the DA728x Motherboard triggers the programmed
haptic sequences.
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Figure 5: Placement of DA728x Motherboard for Optimal Haptic Feedback Measurements
7 SmartCanvas DA728x GUI Setup
Follow the steps in the Setup Wizard to set up Dialog’s SmartCanvas DA728x GUI.
1. Click the “I accept the agreement”radio button and click “Next” (Figure 6).
Figure 6: License Agreement
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2. Select the destination location for the SmartCanvas DA728x GUI to be installed and click Next
(Figure 7).
Figure 7: Select Installation Location
3. Create a shortcut for the SmartCanvas DA728x GUI in the Start Menu and click Next (Figure 8).
Figure 8: Select Start Menu Folder
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4. Create a desktop item for the SmartCanvas DA728x GUI and click Next (Figure 9).
Figure 9: Create a Desktop Item
5. Click Install.
Figure 10: Install the SmartCanvas DA728x GUI
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6. Clear the Launch DA728x GUI check box and click Finish.
Figure 11: Finish Setup
7. Connect the USB cable from the DA728x motherboard to the computer. Windows will now install
the required driver (Figure 12).
Figure 12: Installing Driver Windows Notification
Figure 13: Installation Complete
8. After the USB driver is installed (Figure 13), click the desktop icon to run the DA728x GUI (Figure
14).
Figure 14: Desktop Icon
7.1 Manual Driver Installation
If there are any issues with the USB-IO driver installation, such as a failed installation or the driver
has been accidently removed or deleted, users can easily re-install the USB driver by navigating to
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C:\Dialog Semiconductor\Haptics\DA728x GUI\driver and double clicking on “Install_USB-
IO_driver” which starts the installation process.
8 DA728x Motherboard Hardware Overview
The DA728x motherboard is powered and controlled from the onboard USB circuitry. The device-
under-test (DUT) can be completely isolated from the USB controller circuitry in terms of power, I2C,
or general purpose input (GPI) signals by de-soldering the solder bumps connections shown in
Figure 15.
Figure 15: DA728X Motherboard Functionality
I2C and GPI
connections
Solder bump
Isolation points
USB
CapSense buttons
Power connections
Filtered
OUT_P/N
OUT P/N
GPI_0
GPI_1
GPI_2
Digital accelerometer
Analogue Accelerometer
X/Y/Z outputs
Analog accelerometer
OUTP/N
select
I2C and GPI
connections
Solder bump
Isolation points
USB
CapSense buttons
Power connections
Filtered
OUT_P/N
OUT P/N
GPI_0
GPI_1
GPI_2
Digital accelerometer
Analogue Accelerometer
X/Y/Z outputs
Analog accelerometer
OUTP/N
select
CapSense button
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8.1 Power
The DA728x motherboard is powered from the +5 V USB connection (J6) which has several
regulators that supply the various power rails of the board. Additional external power supplies are not
required, but there is an option to use separate supplies if needed.
VDDIO supplies the digital IO level of the DA7280 daughterboard DUT at 1.8 V via an on-board
regulator. There is also an option to set the VDDIO level to 3V3 with a small modification to the board
(see Motherboard schematic- remove R13 and place on FB2) , Also VDDIO can be supplied
externally via a jumper as discussed further in this section.
VDD supplies the DUT VDD supply and is regulated at 3.8 V via an on-board regulator. This VDD
level allows the D728x motherboard to supply the LRA load up to approximately 2.8 V AC. If a higher
output voltage is required, there is an option to allow the supply to be driven from the 5V USB supply
or an external VDD supply via the jumper pins. An external VDD supply is not required when the
DA7280 daughterboard is used as there is an on-board 5V boost regulator which is set as the default
supply although the current is limited due to the limitation of the supply current from the USB port.
DA728x devices can drive 250 mA into the LRA load via the VDD supply, so the USB power is
adequate for most applications. DA7280/1/2 devices can also drive up to 500 mA when double
output current range is enabled in the register settings, therefore it is recommended that an external
VDD supply is used in this mode so that the USB supply is not overloaded.
To externally power the DA728x motherboard for accurate current measurements or supply at a
different VDD or VDDIO voltage, the jumpers on J1 can be removed to directly power VDD (J1 pin 4)
and VDDIO (J1 pin 3). Alternatively, the jumpers can be removed and replaced with ammeters to
measure the current flow through VDD or VDDIO to the DA7280 daughterboard connected to J10.
8.2 I2C Communications
The SmartCanvas DA728x GUI communicates to the daughterboard connected to J10 through
Dialog's USB-to-I2C interface. DA7280/2 slave address is 0x4A, when adding the R/W bit the I2C
read = 0x94 and the I2C write = 0x95.
When the DA7281 daughterboard is used, one of four I2C addresses can be selected using the on-
board jumpers so that four DA7281 devices can be selected on the same I2C bus, allowing multiple
LRAs to be driven. The address that can be selected with the jumper configurations are 0x48, 0x49,
0x4A, or 0x4B.
To use external I2C communication, de-solder the SDA (Shorting point 5- Marked SP5) and SCL
(Shorting point 4 - Marked SP4) solder bumps and connect the external I2C wires to J4, SCL (J4 pin
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9), and SDA (J4 pin 7). See I2C and GPI connections in
Figure 15. If external I2C signaling is used, ensure that the VDDIO voltage level is the same as the
external I2C signal voltage level.
8.3 Plug-in Daughterboards
The DA728x motherboard supports several plug-in daughterboards which can be easily inserted into
the PCB. The daughterboards are inserted into the J10 connector of the DA728x motherboard and
should be inserted so that the gold fingers of the daughterboard align with the gold pins of the J10
connector, the DUT on the daughterboard should be visible facing upwards. The daughterboard
should be inserted at an angle of approximately 15 to 30 degrees into the J10 connector, then be
pushed towards the connector so that the gold fingers as almost completely hidden by the connector
(Figure 16).
Figure 16: Daughterboard Insertion
The back end of the daughterboard should then be lowered to mate with J9 on the motherboard so
that the back end of the daughterboard clips into the J9 connector as shown in Figure 17.
I2C and GPI
connections
Solder bump
Isolation points
USB
CapSense buttons
Power connections
Filtered
OUT_P/N
OUT P/N
GPI_0
GPI_1
GPI_2
Digital accelerometer
Analogue Accelerometer
X/Y/Z outputs
Analog accelerometer
OUTP/N
select
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Figure 17: Daughterboard Fully Inserted with Release Tabs Shown
To remove the daughterboard, press the two metal clips on J9 so that the daughterboard is released
and can then be removed from J9 and pulled out of J10.
8.3.1 DA7280 Daughterboard
The DA7280 daughterboard PCB is shown in Figure 18. The device is located on either position U1
(WLCSP, default) or U2 (QFN) depending on the package variant on the board, the silicon in both
package variants are identical.
Figure 18: DA7280 Daughterboard
After a power-on reset of the DA7280 daughterboard, download the LRA configuration script (see
section 9.1.1) for the supplied LRA. This ensures the correct DC parameters are driving the LRA
according to the LRA's datasheet. If a different LRA is used, the settings should be adjusted
according to that specific LRA’s electrical parameters.
To drive the LRA, DA7280 outputs PWM differential signals which are routed to several locations on
the DA728x motherboard where an LRA can be connected:
●Solder pads labeled OUTP and OUTN (TP7 to TP12 and TP14 to TP17). A shorting jumper must
be connected to J7, J8, J11, J12, or J13 [default] to select the appropriate LRA connected. The
default LRA is connected to TP16 and TP17.
●J3 header pins labeled OUTP and OUTN.
Connect an LRA to only one of these positions at one time. Alternatively, LRAs can be connected
from TP7 to TP12 and TP14 to TP17. A double jumper can then be connected to J7, J8, J11, J12, or
J13 to select which LRA is to be used. Ensure that the correct script file is loaded for the particular
LRA before it is selected and driven.
Filtered OUT_P and OUT_N signals from DA7280 are available for debug via the OUTP_F and
OUTN_F pins (J2). Connect these signals from J2 to an oscilloscope for signal monitoring and tuning
purposes (see section 10).
When the DA7280 daughterboard inserted into the DA728x motherboard is used, it is recommended
that the LRA should be placed on the motherboard for the true performance measurements of the
acceleration. Please check the DA7280 daughterboard user manual [5] for more information about
the hardware and connections available on the board.
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8.3.2 DA7281 Daughterboard
The DA7281 daughterboard PCB is shown in Figure 19. The device is located on either position U1
(WLCSP) or U2 (QFN, default) depending on the package variant on the board, the silicon in both
package variants are identical.
Figure 19: DA7281 Daughterboard
After a power-on reset of the DA7281 daughterboard, download the LRA configuration script (see
section 9.1.1) for the supplied LRA. This ensures the correct DC parameters are driving the LRA
according to the LRA's datasheet. If a different LRA is used, the settings should be adjusted
according to that specific LRA’s electrical parameters.
To drive the LRA, DA7281 outputs PWM differential signals which are routed to several locations on
the DA728x motherboard where an LRA can be connected:
●Solder pads labeled OUTP and OUTN (TP7 to TP12 and TP14 to TP17). A shorting jumper must
be connected to J7, J8, J11, J12, or J13 [default] to select the appropriate LRA connected. The
default LRA is connected to TP16 and TP17.
●J3 header pins labeled OUTP and OUTN.
Connect an LRA to only one of these positions at one time. Alternatively, LRAs can be connected
from TP7 to TP12 and TP14 to TP17. A double jumper can then be connected to J7, J8, J11, J12, or
J13 to select which LRA is to be used. Ensure that the correct script file is loaded for the particular
LRA before it is selected and driven.
Filtered OUT_P and OUT_N signals from DA7281 are available for debug via the OUTP_F and
OUTN_F pins (J2). Connect these signals from J2 to an oscilloscope for signal monitoring and tuning
purposes (see section 10).
When the DA7281 daughterboard inserted into the DA728x motherboard, it is recommended that the
LRA should be placed on the motherboard for the true performance measurements of the
acceleration. Please check the DA7281 daughterboard user manual [6] for more information about
the hardware and connections available on the board.
Revision 1.1 - DRAFT 08-Jun-2022
© 2022 Renesas Electronics

UM-HA-001
DA728x Motherboard 359-05-B
Preliminary for Use with
Evaluation Kit
User Manual
CFR0012
19 of 59
8.3.3 DA7282 Daughterboard
The DA7282 daughterboard PCB is shown in Figure 20. The device is located on either position U1
(WLCSP, default) or U2 (QFN) depending on the package variant on the board, the silicon in both
package variants are identical.
Figure 20: DA7282 Daughterboard
After a power-on reset of the DA7282 daughterboard, download the LRA configuration script (see
section 9.1.1) for the supplied LRA. This ensures the correct DC parameters are driving the LRA
according to the LRA's datasheet. If a different LRA is used, the settings should be adjusted
according to that specific LRA’s electrical parameters.
To drive the LRA, DA7282 outputs PWM differential signals which are routed to several locations on
the DA728x motherboard where an LRA can be connected:
●Solder pads labeled OUTP and OUTN (TP7 to TP12 and TP14 to TP17). A shorting jumper must
be connected to J7, J8, J11, J12, or J13 [default] to select the appropriate LRA connected. The
default LRA is connected to TP16 and TP17.
●J3 header pins labeled OUTP and OUTN.
Connect an LRA to only one of these positions at one time. Alternatively, LRAs can be connected
from TP7 to TP12 and TP14 to TP17. A double jumper can then be connected to J7, J8, J11, J12, or
J13 to select which LRA is to be used. Ensure that the correct script file is loaded for the particular
LRA before it is selected and driven.
Filtered OUT_P and OUT_N signals from DA7282 are available for debug via the OUTP_F and
OUTN_F pins (J2). Connect these signals from J2 to an oscilloscope for signal monitoring and tuning
purposes (see section 10).
When the DA7282 daughterboard inserted into the DA728x motherboard, it is recommended that the
LRA should be placed on the motherboard for the true performance measurements of the
acceleration. Please check the DA7282 daughterboard user manual [7] for more information about
the hardware and connections available on the board.
Revision 1.1 - DRAFT 08-Jun-2022
© 2022 Renesas Electronics

UM-HA-001
DA728x Motherboard 359-05-B
Preliminary for Use with
Evaluation Kit
User Manual
CFR0012
20 of 59
8.3.4 DA7283 Daughterboard
The DA7283 daughterboard PCB is shown in Figure 21. The device is located on either position U1
(WLCSP) or U2 (QFN, default) depending on the package variant on the board, the silicon in both
package variants are identical.
Figure 21: DA7283 Daughterboard
The DA7283 device is designed to drive 95% of LRAs without configuration where a simple click or
buzz is required by driving the GPI signals of the device. The DA7283 has no I2C bus for
programming or tuning. Please note that the DA7283 supports only LRAs and does not support ERM
motors.
The insertion of the DA7283 daughterboard allows the DA728x motherboard to power the
daughterboard and allows the operation of the cap-sense touch buttons to operate the drive signals.
The on-board push switches can also be used to operate the drive signals.
To drive the LRA, DA7283 outputs PWM differential signals which are routed to several locations on
the DA728x motherboard where an LRA can be connected:
●Solder pads labeled OUTP and OUTN (TP7 to TP12 and TP14 to TP17). A shorting jumper must
be connected to J7, J8, J11, J12, or J13 [default] to select the appropriate LRA connected. The
default LRA is connected to TP16 and TP17.
●J3 header pins labeled OUTP and OUTN.
Connect an LRA to only one of these positions at one time. Alternatively, LRAs can be connected
from TP7 to TP12 and TP14 to TP17. A double jumper can then be connected to J7, J8, J11, J12, or
J13 to select which LRA is to be used.
When selecting a new LRA, please ensure that the motherboard is powered down and up again as
the DA7283 performs a calibration cycle to determine the drive parameters only when first driving
after a first power up. Connecting a new LRA without powering down the device will results in
incorrect drive signals.
Filtered OUT_P and OUT_N signals from DA7283 are available for debug and are accessed from the
OUTP_F and OUTN_F pins (J2). Connect these signals from J2 to an oscilloscope for signal
monitoring and tuning purposes (see section 10).
Revision 1.1 - DRAFT 08-Jun-2022
© 2022 Renesas Electronics