Rohm KXTJ3-1057-EVK-001 User manual

1/2
© 2021 ROHM Co., Ltd.
No. 63UG098E Rev.001
Jan.2021
User’s Guide
Accelerometer
KXTJ3-1057-EVK-001 Manual
KXTJ3-1057-EVK-001 is an evaluation board for KXTJ3-1057 accelerometer. This User’s Guide will show how to use KXTJ3-1057-EVK-001
together with Accelerometer Evaluation Kit that is sold as RKX-EVK-001.
Preparation
⚫KXTJ3-1057-EVK-001 1pc
⚫RKX-EVK-001 1pc
Setting
1. Download and Install the latest release of the RoKiX
Windows GUI following this link:
https://www.rohm.com/support/accelerometer-evk-support
Note: After installation, the shortcuts to the RoKiX Windows
GUI and to the RoKiX Development Kit User’s Guide can
be found on the desktop, in the Windows Start menu under
RoKiX folder, and in the installation directory:
\Documents\RoKiX\
2. Start RoKiX Windows GUI. If Configuration update pop-up
window is shown, click Yes to download the latest
configurations from the server.
Figure 1. Configuration update pop-up window
3. (Optional) The CY8CKIT-059 PSoC® 5LP Prototyping Kit
comes preloaded with the custom firmware when
purchased as part of RKX-EVK-001. The latest version of
the firmware can be found in the installation directory:
\Documents\RoKiX\RoKiX-Firmware\Cypress-PSoC
Note: The guide for programming the custom firmware to
the Cypress CY8CKIT-059 PSoC® 5LP Prototyping Kit can
be found in the RoKiX Development Kit User’s Guide.
4. Connect KXTJ3-1057-EVK-001 to RKX-EVK-001 directly
to the 18-pin header J6 or using the provided ribbon cable.
Direct Ribbon cable
Figure 2. KXTJ3-1057-EVK-001 connection
5. Connect the CY8CKIT-059 to the PC using the provided
micro-USB cable to establish the connection with RoKiX
Windows GUI.
Note: With Windows 10, the operating system should
automatically use the correct driver. For the earlier
Windows versions, please follow the driver installation
procedure in the RoKiX Development Kit User’s Guide.

2/2
User’s Guide
KXTJ3-1057-EVK-001 Manual
© 2021 ROHM Co., Ltd.
No. 63UG098E Rev.001
Jan.2021
Measurement
Start the RoKiX Windows GUI software and adjust your settings
as follows to get the device connected:
1. Select the board configuration from the Board menu:
CY8CKIT-059 / RoKiX adapter A3 / I2C
2. Select the desired configuration stream for the
corresponding accelerometer sensor from the Stream
menu: e.g.:
KXTJ3 / Accel data 100Hz ±8g high resolution
3. If the settings are adjusted properly, data streaming should
start automatically, and the on-screen output should
display real time output for X, Y, and Z axes of KXTJ3-1057
sensor.
Figure 3. Example RoKiX Windows GUI software window
4. For additional details about the RoKiX Windows GUI
software, please see the RoKiX Development Kit User’s
Guide.
Board Information
Figure 4. Picture of the accelerometer board
Part
number
Description / Function
C1
Bulk capacitor for VDD (4.7µF)
C2
Noise decoupling capacitor for VDD (0.1µF)
C3
Noise decoupling capacitor for IO_VDD (0.1µF)
C4
U1 bypass capacitor for VDD (0.1µF)
C5
U1 bypass capacitor for IO_VDD (0.1µF)
D1
Clamp diode for I/O signals
D2
Clamp diode for I/O signals
LED1
VDD power LED (green)
R1
LED1 current limiting resistor (200Ω)
R2
Pull-up resistor for SDA (2.1kΩ)
R3
Pull-up resistor for nCS (10kΩ)
R4
Pull-up resistor for SCL (2.1kΩ)
R5
Pull-up resistor for ADDR (10kΩ)
R6
Pull-down resistor for RES (10kΩ)
R8
Bypass for VDD current measurement jumper (J2)
R11
0Ω jumper for RES
R13
0Ω jumper for IO_VDD
U1
KXTJ3-1057 accelerometer
Table 1. Build of Materials for KXTJ3-1057-EVK-001
TOP
BOTTOM

5 %
ZZZURKPFRP
652+0&R/WG$OOULJKWVUHVHUYHG
Notice
ROHM Customer Support System
http://www.rohm.com/contact/
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
Notes
The information contained herein is subject to change without notice.
Before you use our Products, please contact our sales representative
and verify the latest specifica-
tions :
Although ROHM is continuously working to improve product reliability and quality, semicon-
ductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
The Products specified in this document are not designed to be radiation tolerant.
For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
ROHM has used reasonable care to ensurHthe accuracy of the information contained in this
document. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws and
regulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
This document, in part or in whole, may not be reprinted or reproduced without prior consent of
ROHM.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)