Rohm RKX-EVK-001 User manual

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© 2022 ROHM Co., Ltd.
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User’s Guide
RKX-EVK-001 and ROHM EVK EVB
ROHM EVK SW User’s Guide
The ROHM EVK is an easy-to-use platform that allows evaluation of ROHM products. The evaluation kit is based on the Infineon CY8CKIT-059
Prototyping Kit featuring an integrated SoC based on the ARM® Cortex®-M3 CPU with powerful analog and digital peripherals. The ROHM EVK
comes with a highly configurable RKX-A3-EVK-001 that provides an easy-to-use hardware interface between the MCU and the variety of Digital
ROHM devices in a plug-and-play fashion. Finally, the ROHM EVK GUI SW, a powerful Windows-based desktop application, provides an intuitive
Graphical User Interface capable of displaying and logging the real-time device data, and configuring the device functions through a graphical
register editor, to name a few.
This user guide describes the ROHM EVK SW. For the ROHM EVK HW, please refer to the ROHM EVK HW User’s Guide.
Definitions
ROHM EVK
Provides the full range of software, hardware and the firmware used for device evaluation purposes.
ROHM EVK SW
Provides the full range of the software for device evaluation purposes consisting of ROHM EVK GUI
SW and RKX EVK FW
ROHM EVK GUI SW
ROHM device evaluation software with a graphical user interface running on Windows OS
ROHM EVK FW
Proprietary firmware running on microcontroller-based host adapters
ROHM EVK HW
ROHM EVK EVB connected to RKX-EVK-001 board
RKX-EVK-001
RKX-A3-EVK-001 + CY8CKIT-059 Prototyping Kit
RKX-A3-EVK-001
Adapter board specifically designed to easily interface with the ROHM EVK Evaluation Board and
development platforms
Accelerometer EVB
Evaluation board with an accelerometer
ADC EVB
Evaluation board with an ADC
ROHM EVK EVB
Accelerometer evaluation board or ADC evaluation board
Acronyms
ADC
A/D Converter
GUI
Graphical User Interface
PSoC
Programmable SoC (System on Chip)

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TABLE OF CONTENTS
Definitions..................................................................................................................................................................................................................................................................1
Acronyms.................................................................................................................................................................................................................................................................1
1ROHM EVK SW Overview....................................................................................................................................................................................................................4
1.1 Introduction..............................................................................................................................................................................................4
1.2 Setup .......................................................................................................................................................................................................4
1.2.1 Installation............................................................................................................................................................................................4
1.2.2 Start with ROHM EVK GUI SW..........................................................................................................................................................4
1.2.2.1 When you connect RKX-EVK-001 to a computer......................................................................................................................4
1.2.2.2 Connection status indicator.........................................................................................................................................................7
1.2.3 Some example cases of connecting the RKX-EVK-001....................................................................................................................8
1.2.3.1 An example for accelerometers:.................................................................................................................................................8
1.2.3.2 An example for the ADC evaluation:...........................................................................................................................................9
1.3 User Interface – Menu bar.................................................................................................................................................................... 10
1.3.1 File – Menu........................................................................................................................................................................................10
1.3.2 Data – Menu......................................................................................................................................................................................10
1.3.2.1 Streaming................................................................................................................................................................................. 10
1.3.2.2 Logging .....................................................................................................................................................................................11
1.3.3 Connection – Menu...........................................................................................................................................................................11
1.3.4 Registers - Menu...............................................................................................................................................................................11
1.3.4.1 Load register configuration from file......................................................................................................................................... 12
1.3.4.2 Save register configuration to file............................................................................................................................................. 12
1.3.4.3 Read all register values from IC............................................................................................................................................... 12
1.3.4.4 Write all register values to IC.................................................................................................................................................... 12
1.3.4.5 Dump register values to file...................................................................................................................................................... 12
1.3.4.6 Open register map definition.................................................................................................................................................... 13
1.3.4.7 Verify write................................................................................................................................................................................ 13
1.3.5 Settings – Menu ................................................................................................................................................................................13
1.3.5.1 Auto Connect USB .................................................................................................................................................................. 13
1.3.5.2 Auto config and registers download......................................................................................................................................... 13
1.3.5.3 Automatic streaming................................................................................................................................................................ 13
1.3.5.4 COM port ................................................................................................................................................................................. 14
1.3.5.5 Reset connection..................................................................................................................................................................... 14
1.3.5.6 Reinitialize board...................................................................................................................................................................... 14
1.3.6 Stream - Menu ..................................................................................................................................................................................14
1.3.7 Board – Menu....................................................................................................................................................................................15
1.3.8 View – Menu .....................................................................................................................................................................................16
1.3.8.1 Digital output in sub channel view............................................................................................................................................ 16
1.3.8.2 Events view panel.................................................................................................................................................................... 18
1.3.8.3 Reference line.......................................................................................................................................................................... 18
1.3.8.4 Show all board configurations.................................................................................................................................................. 19
1.3.8.5 Show ODR warning pop up window....................................................................................................................................... 19

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1.3.9 Help – Menu......................................................................................................................................................................................19
1.3.9.1 User Guide............................................................................................................................................................................... 20
1.3.9.2 Release Notes......................................................................................................................................................................... 20
1.3.9.3 About ROHM EVK................................................................................................................................................................... 20
1.3.9.4 About Host Adapter Board....................................................................................................................................................... 20
1.4 User Interface - Tabs ............................................................................................................................................................................ 21
1.4.1 Plotter – Tab.......................................................................................................................................................................................21
1.4.1.1 Raw data.................................................................................................................................................................................. 22
1.4.1.2 Zooming................................................................................................................................................................................... 22
1.4.1.3 Moving...................................................................................................................................................................................... 22
1.4.1.4 Frequency analysis.................................................................................................................................................................. 23
1.4.1.5 Advanced Data Path (ADP) .................................................................................................................................................... 24
1.4.2 Angle Calibration – Tab .....................................................................................................................................................................26
1.4.3 Registers – Tab..................................................................................................................................................................................30
1.4.3.1 Updating register value............................................................................................................................................................ 30
1.4.3.2 Register sets ............................................................................................................................................................................ 32
1.4.3.3 Register polling function........................................................................................................................................................... 34
1.4.3.4 Stream modify mode ............................................................................................................................................................... 35
1.5 User Interface - Status bar.................................................................................................................................................................... 37
1.6 User Interface - Pop-up windows......................................................................................................................................................... 37
1.6.1 No data pop-up window....................................................................................................................................................................37
1.6.2 Streaming pop-up window................................................................................................................................................................37
1.6.3 ODR has not reached the target value pop-up window ...................................................................................................................38
1.6.4 Wake up pop-up window ..................................................................................................................................................................38
1.7 Shortcuts............................................................................................................................................................................................... 40
2USB Driver..............................................................................................................................................................................................................................................41
2.1 USB Driver Installation Procedure........................................................................................................................................................ 41
3Firmware..................................................................................................................................................................................................................................................46
3.1 Firmware Update Procedure................................................................................................................................................................ 46
4Troubleshooting and known issues.....................................................................................................................................................................................................49
4.1 Communication Troubleshooting......................................................................................................................................................... 49
4.1.1 RKX-EVK-001 Communication Issues.............................................................................................................................................49
4.1.1.1 “Status: EVK Disconnected” in ROHM EVK GUI SW Status Bar.......................................................................................... 49
4.1.1.2 “Status: No data in stream” in ROHM EVK GUI SW Status Bar ............................................................................................ 51
4.1.2 USB performance issues..................................................................................................................................................................52
4.2 “EVK Mismatch” – state with the ROHM EVK GUI SW...................................................................................................................... 52
4.3 ODR accuracy and Timestamping....................................................................................................................................................... 52
4.4 .NET installation related problem ......................................................................................................................................................... 53
4.5 Desktop shortcuts may not work properly............................................................................................................................................ 53
5Appendix..................................................................................................................................................................................................................................................54
5.1 RKX-A3-EVK-001 Detailed Diagram................................................................................................................................................... 54
5.2 Interface with ROHM EVK EVB........................................................................................................................................................... 55

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User’s Guide
1 ROHM EVK SW Overview
1.1 Introduction
The ROHM EVK GUI SW provides an easy-to-use graphical user interface demonstrating high level device offerings and features. Some of the
features include:
•A visual display of real-time device data
•Ability to record device data onto a file
•Device registry editor
ROHM EVK GUI SW is compatible with Windows OS versions 7, 8 and 10. Minimum recommended display resolution is 1920 x 1080.
1.2 Setup
1.2.1 Installation
If ROHM EVK Software has not been installed already, it can be installed by downloading the latest installer file from the ROHM Semiconductor
website:
https://www.rohm.com/support/accelerometer-evk-support
Before running the ROHM EVK GUI SW, the necessary USB serial drivers must be installed (if Windows does not install these drivers
automatically). See (2. USB Drive) for details.
1.2.2 Start with ROHM EVK GUI SW
1.2.2.1 When you connect RKX-EVK-001 to a computer
Please follow the following basic procedure to start using the ROHM EVK GUI SW:
1. Aftertheinstallationiscompleted,theapplicationiconwillbeavailableontheDesktop(Figure1).
DoubleclickingtheiconwiththemousewilllaunchtheROHMEVKGUISW.
Figure 1. ROHM EVK GUI SW icon
NOTE: The application is also able to be launched from the Start–menu of Windows 10 (Figure 2).

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Figure 2. ROHM application folder in the Start-menu
2. Selectasuitableboardfromthedropdownmenu(Figure3) of the ConnectionstatusindicatororfromtheBoard–menu(Figure4).
Figure 3. ROHM EVK GUI SW opening view
Figure 4. Board Menu

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3. OpentheRKX-EVK-001info-tab.
Verify that the connecting device is same as in the image. If the image is not the same, please reselect the board. In this state the
connectionstatusis “EVK disconnected” ref. (Figure8).
NOTE:Inthisexample,RKX-EVK-001+ ADCEVBareshown.
Figure 5. Board Information Tab
4. Aftertheverificationisdone,connectyourdevicetothecomputerwithamicro-USBcable(Figure6). TheROHMEVKGUISW
connectionstatusindicatorwillchangetoyellow,“EVKConnected”state(Figure5).SeealternativemethodsforEVBconnectionfrom
(Figure89).
Figure 6. A device connection with a micro-USB cable

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5. Confirm your device by pressing the Confirm Board - button (Figure 5). The Connection indicator will change to Green, EVK Ready
status(Figure7).
Figure 7. Streaming view
6. Go tothe Plotter- tab.Thedataevaluation isreadiedbypressingtheStreamingbutton.
1.2.2.2 Connection status indicator
ROHM EVK GUI SW features a connection status indicator between the computer and ROHM-EVK-001 (Figure 8).
1. WhenROHMEVKGUISWislaunched,thestatusindicatorwillappearas“EVK Disconnected”.
2. WhenROHM-EVK-001isconnectedtothecomputerwitha micro-USB,thestatuswillchangeto“EVK Connected”.
3. Afterthe“Confirm board” button is pressed, thestatusoftheROHMEVKGUISWwillchangeto“EVK Ready”.
Figure 8, ROHM EVK GUI SW Connection Status

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1.2.3 Some example cases of connecting the RKX-EVK-001
•AttachanEvaluationBoard(e.g.,BU79100G-LA-EVK-001,KX132-1211-EVK-001etc.)to theslotJ5of RKX-EVK-001withthe
providedribboncableortotheslotJ6ofRKX-EVK-001 withouttheribboncable. Fordetailsreferto (Figure88,Table2)and(Figure
89).
•ConnecttheRKX-EVK-001tothePCwiththeprovidedmicro-USBcable(Figure6).
•LaunchtheROHM EVKGUISWapplication.
•If a Configurationupdatepop-upwindowappears,clickYestodownloadthelatestconfigurationsfromtheserver(Figure9).
Figure 9. Configuration Updated Popup Window
1.2.3.1 An example for accelerometers:
•Select the board configuration from the Board menu:
1. e.g., RKX-EVK-001 / Accelerometer EVB / I2C
•Select the desired configuration stream for the corresponding accelerometer sensor from the Stream menu:
2. E.g., KX132-1211 / ADP data 1600Hz Band Pass 100Hz – 200Hz with RMS
NOTE: I2C interface can be used for all digital sensors but the highest Output Data Rate (ODR) will be limited to ~3400Hz.
NOTE: For sensors that support SPI interface (e.g., KX132-1211, KX134-1211), select the RKX-EVK-001 / Accelerometer EVB / SPI board
configuration that supports ODR up-to 25600Hz.
•If the “Please enable streaming to activate Plotter movement!” – pop-up window appears on the screen, enable data streaming with
the “Streaming” button.
The plotter should now display real time output for ADPX, ADPY, and ADPZ also AccX, AccY and AccZ axes of the KX132-1211 sensor according
to its movement (Figure 10).

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Figure 10. Plotter view with KX132-1211 motion displayed
1.2.3.2 An example for the ADC evaluation:
•Select the board configuration from the Board menu:
1. e.g., RKX-EVK-001 / ADC EVB
•Select the desired configuration stream for the corresponding ADC from the Stream menu:
2. e.g., BU79100G / ADC data (VA=3.3V, 10kSPS, non-inverted)
•If the “Please enable streaming to activate Plotter movement!” – Pop-up window appears on the screen, enable data streaming with
the “Streaming” button.
The plotter should now display real time output for ADC (Figure 11).

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Figure 11. Plotter view with measurements of BU79100G-LA displayed
1.3 User Interface – Menu bar
Most of the functionality of the ROHM EVK GUI SW is accessible from the menu bar. Short description of the menu items is available by hovering
the mouse pointer on the menu items.
1.3.1 File – Menu
Figure 12. File menu
The File menu contains only the option to exit the application. Selecting “Exit” will exit from the application.
1.3.2 Data – Menu
Figure 13. Data Menu
The Data menu contains the options related to acquiring the data.
1.3.2.1 Streaming
The streaming menu is used for enabling / disabling device data streaming.
NOTE: Data stream enabling / disabling may take a while, so please be patient.