User’s GuideAccelerometer

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

3.

⚫

KXTJ3-1057-EVK-001

1pc⚫

RKX-EVK-001

1pc

comes preloaded with the custom firmware whenpurchased as part of RKX-EVK-001. The latest version ofthe firmware can be found in the installation directory:Setting
1.

(Optional) The CY8CKIT-059 PSoC® 5LP Prototyping Kit\Documents\RoKiX\RoKiX-Firmware\Cypress-PSoC

Download and Install the latest release of the RoKiXWindows GUI following this link:

Note: The guide for programming the custom firmware tothe Cypress CY8CKIT-059 PSoC® 5LP Prototyping Kit can

https://www.rohm.com/support/accelerometer-evk-support

be found in the RoKiX Development Kit User’s Guide.

Note: After installation, the shortcuts to the RoKiX Windows4.

GUI and to the RoKiX Development Kit User’s Guide canConnect KXTJ3-1057-EVK-001 to RKX-EVK-001 directly
to the 18-pin header J6 or using the provided ribbon cable.

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.
DirectRibbon 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 RoKiXWindows GUI.
Note: With Windows 10, the operating system should
automatically use the correct driver. For the earlier

Figure 1. Configuration update pop-up window

Windows versions, please follow the driver installation
procedure in the RoKiX Development Kit User’s Guide.

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User’s Guide

KXTJ3-1057-EVK-001 Manual
Measurement

Board Information

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.

Selectthedesiredconfiguration

streamforthecorresponding accelerometer sensor from the StreamTOPmenu: e.g.:

Figure 4. Picture of the accelerometer board

KXTJ3 / Accel data 100Hz ±8g high resolution
3.

Part
numberC1

If the settings are adjusted properly, data streaming should
start automatically, and the on-screen output should

Description / Function
Bulk capacitor for VDD (4.7µF)

C2

Noise decoupling capacitor for VDD (0.1µF)

C3Noise 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

D2Clamp 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)R6Pull-down resistor for RES (10kΩ)R8Bypass for VDD current measurement jumper (J2)

R110Ω jumper for RES

For additional details about the RoKiX Windows GUI

R130Ω jumper for IO_VDD

software, please see the RoKiX Development Kit User’sU1

KXTJ3-1057 accelerometer

display real time output for X, Y, and Z axes of KXTJ3-1057
sensor.

Figure 3. Example RoKiX Windows GUI software window
4.

BOTTOM

Table 1. Build of Materials for KXTJ3-1057-EVK-001

Guide.

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NoticeNotes1) The information contained herein is subject to change without notice.
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