Rohm RKX-EVK-001 User Manual
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Rohm RKX-EVK-001 User Manual

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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
ROHM EVK SW
ROHM EVK GUI SW
ROHM EVK FW
ROHM EVK HW
RKX-EVK-001
RKX-A3-EVK-001
Accelerometer EVB
ADC EVB
ROHM EVK EVB

Acronyms

ADC
GUI
PSoC
© 2022 ROHM Co., Ltd.
Provides the full range of software, hardware and the firmware used for device evaluation purposes.
Provides the full range of the software for device evaluation purposes consisting of ROHM EVK GUI
SW and RKX EVK FW
ROHM device evaluation software with a graphical user interface running on Windows OS
Proprietary firmware running on microcontroller-based host adapters
ROHM EVK EVB connected to RKX-EVK-001 board
RKX-A3-EVK-001 + CY8CKIT-059 Prototyping Kit
Adapter board specifically designed to easily interface with the ROHM EVK Evaluation Board and
development platforms
Evaluation board with an accelerometer
Evaluation board with an ADC
Accelerometer evaluation board or ADC evaluation board
A/D Converter
Graphical User Interface
Programmable SoC (System on Chip)
1/55
User's Guide
No. 64UG118E Rev.002
Feb.2022

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Summary of Contents for Rohm RKX-EVK-001

  • Page 1: Definitions

    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.

  • Page 2: Table Of Contents

    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 User Interface – Menu bar..................................10 1.3.1...
  • Page 3 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 “EVK Mismatch” – state with the ROHM EVK GUI SW ........................52 ODR accuracy and Timestamping ...............................

  • Page 4: Rohm Evk Sw Overview

    ROHM EVK GUI SW is compatible with Windows OS versions 7, 8 and 10. Minimum recommended display resolution is 1920 x 1080. 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).
  • Page 5 User’s Guide Figure 2. ROHM application folder in the Start-menu Select a suitable board from the dropdown menu (Figure 3) of the Connection status indicator or from the Board – menu (Figure 4) Figure 3. ROHM EVK GUI SW opening view Figure 4.
  • Page 6 Figure 5. Board Information Tab After the verification is done, connect your device to the computer with a micro-USB cable (Figure 6). The ROHM EVK GUI SW connection status indicator will change to yellow, “EVK Connected” state (Figure 5). See alternative methods for EVB connection from (Figure 89).

  • Page 7: Connection Status Indicator

    When ROHM-EVK-001 is connected to the computer with a micro-USB, the status will change to “EVK Connected”. After the “Confirm board” button is pressed, the status of the ROHM EVK GUI SW will change to “EVK Ready”. Figure 8, ROHM EVK GUI SW Connection Status ©...

  • Page 8: Some Example Cases Of Connecting The Rkx-Evk-001

    Attach an Evaluation Board (e.g., BU79100G-LA-EVK-001, KX132-1211-EVK-001 etc.) to the slot J5 of RKX-EVK-001 with the provided ribbon cable or to the slot J6 of RKX-EVK-001 without the ribbon cable. For details refer to (Figure 88, Table 2) and (Figure 89).

  • Page 9: An Example For The Adc Evaluation

    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) •...

  • Page 10: User Interface - Menu Bar

    Figure 11. Plotter view with measurements of BU79100G-LA displayed 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.

  • Page 11: Logging

    (Figure 14). NOTE: It is normal to see a variation in the time intervals. Data is received at varying intervals and timestamps are given by the ROHM EVK GUI Figure 14. Status bar text when logging is active.

  • Page 12: Load Register Configuration From File

    Before performing the “Register dump”, the corresponding Register definition needs to be selected (Figure 52) or loaded first (1.3.4.1 Load register configuration from file). Otherwise following notification is shown (Figure 18) Figure 18. Register definition Loading Notification Dialog Box © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 12/55...

  • Page 13: Open Register Map Definition

    Figure 19. Settings Menu 1.3.5.1 Auto Connect USB When “Auto connect” is enabled, every time when ROHM EVK GUI SW is started, it will automatically select the USB COM port for the connected device and connect to it. 1.3.5.2 Auto config and registers download When “Auto config download”...

  • Page 14: Com Port

    The list of streams is dynamic and will change according to the chosen board configurations (1.3.7 Board – Menu). For example, if the RKX-EVK-001 / Accelerometer EVB / SPI board configuration is selected from the Board menu, the KXTJ3 sensor will not be shown in the Stream menu because it does not support an SPI interface.

  • Page 15: Board - Menu

    The Board menu lists either all supported board configurations for all supported Host Adapters (Figure 23) or only the relevant ones (Figure 22) that are supported by the Host Adapter currently plugged in, e.g., CY8CKIT-059 / RKX-A3-EVK-001 / that comes with the ROHM EVK package by default.

  • Page 16: View - Menu

    User’s Guide 1.3.8 View – Menu The View menu item provides different features that can be shown or hidden in the ROHM EVK GUI SW. Figure 24. View Menu For sensor evaluation (e.g., KX132-1211), if “wake-up & Back-to-Sleep Detection streaming” is selected (Figure 20) the “Show wake up pop window”...
  • Page 17 50Hz ±2g high performance of the KX132-1211, in order to monitor the accelerometer’s Z axis only, press once on AccX and AccY to disable these channels. The only remaining channel would be AccZ as shown in (Figure 28). © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 17/55 Feb.2022...

  • Page 18: Events View Panel

    Reference line position is also shown in the Status bar (lower right corner of the window). To achieve a higher resolution / granularity when setting the reference line position, use the mouse scroll wheel to zoom into and out of the plotter window. © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 18/55 Feb.2022...

  • Page 19: Show All Board Configurations

    1.3.8.5 Show ODR warning pop up window The ODR warning pop-up window appears anytime the real time Output Data Rate (ODR) as measured by the ROHM EVK GUI SW is significantly different from the nominal ODR set in the Stream (Figure 67).

  • Page 20: User Guide

    Selecting “Release notes” opens the release notes-text file, where details of the version release are explained. 1.3.9.3 About ROHM EVK The “About ROHM EVK GUI SW” help menu shows the current ROHM EVK GUI SW’s version information. It also shows the link where the latest version can be downloaded from (Figure 32).

  • Page 21: User Interface - Tabs

    User’s Guide User Interface - Tabs The functionalities of the ROHM EVK GUI SW are divided between separate tabs. 1.4.1 Plotter – Tab The Plotter in (Figure 10 and Figure 11) shows device data from the current stream. The Plotter tool bar has its own Streaming and Raw data buttons to enable quick changing between the two (Figure 34).

  • Page 22: Raw Data

    In order to use Auto scaling after zooming, the “Auto scaling” - button must be activated again. 1.4.1.3 Moving The position of the Data axis (y-axis) can be moved up and down using the right mouse button. © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 22/55...

  • Page 23: Frequency Analysis

    NOTE: The x-axis range for the plot starts from 0 Hz and ends in ODR/2 Hz. It is automatically adjusted if the ODR is modified. Figure 38. Plotter view of KX132-1211 with FFT functionality Figure 39. ADC plotter view with FFT functionality © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 23/55...

  • Page 24: Advanced Data Path (Adp)

    Also, the Wake-up pop-up window is enabled (1.6.4 Wake up pop-up window). The pop-up window will appear when a wake-up event is active, e.g., when a signal within band-pass frequency range is present (Figure 42). © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 24/55 Feb.2022...
  • Page 25 If there is a need to change the threshold values, then the proper threshold values can be seen from the plotter view and then written to the sensor using the register editor see (1.4.3.4Stream modify mode) for details. Figure 42. The plotter view with ADP & WUF data stream © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 25/55...

  • Page 26: Angle Calibration - Tab

    The user can start a new calibration by clicking the start button and by executing following steps while streaming is active. NOTE: If ROHM EVK GUI SW detects that calibration has been done on the same calibration position twice in a row, the Calibration Error window will appear, and the user will be required to restart the calibration procedure from the 1 calibration procedure (Figure 44).
  • Page 27 The last current value for position 1 is now stored and shown in the 2 table. Figure 46. Angle Calibration. Position – 2 Click Next and hold the device still until the diagram changes to the 3 position (Figure 47) © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 27/55 Feb.2022...
  • Page 28 The Inclinometer calibrated status will appear in the right corner of the status bar (Figure 49), and a small desktop notification message will appear for a few seconds to indicate that the calibration procedure is done (Figure 50). © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 28/55...
  • Page 29 At this point, if the user is satisfied with the calibration parameters, they can be saved to an individual .json file that can be loaded next time the ROHM EVK GUI SW restarts. These calibration parameters will now be used for angle calculations.

  • Page 30: Registers - Tab

    All the devices of the selected board, which have eligible registers can be selected from the “Device name” pull down menu. Figure 52. ROHM EVK GUI SW register editor tab NOTE: When the device register is selected from the pull-down menu, the name of the tab will change to one of the following: •...
  • Page 31 For example, to set the WUFTH value to 950 (0x03B6), write 950 to the WUFTH register 0x49, and the register WUFTH (0x49) will store the value 0xB6, while the register BTSWUFTH (0x4A) will store the value 0x03. © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 31/55 Feb.2022...

  • Page 32: Register Sets

    Figure 58. Select set Drop Down Menu The register sets are a very useful feature of the ROHM EVK GUI SW as it allows the user to visually see only the registers of interest grouped together. Consider the Data Stream register set shown in (Figure 59). From this set, it is possible to select all the basic configurations of the accelerometer such standby/run mode, power mode, ODR, full scale range, and set some basic interrupt.
  • Page 33 Register Set File Naming Convention: The register set file name follows the following naming scheme: <device name>_<set name>_set.txt For example, the Data Stream for KX132-1211 sensor is called: KX132-1211_Data Stream_set.txt © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 33/55 Feb.2022...

  • Page 34: Register Polling Function

    NOTE: The ROHM EVK GUI SW loads all the register sets on startup. If changes were made to the content of the register set files or new register set files were created, the changes will be visible the next time the program is loaded.

  • Page 35: Stream Modify Mode

    Plotter tab, Streaming continues with the modified register values. This makes it easy to change the ODR or data range for example. Figure 62. Register editor view in the Stream Modify Mode © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 35/55 Feb.2022...
  • Page 36 ODR is significantly different from the original ODR value defined in the stream (Figure 63). The ODR pop-up message can be disabled through the View menu (1.3.8. View - Menu) Figure 63. The Plotter View After Modifying the Register Values © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 36/55...

  • Page 37: User Interface - Status Bar

    Bluetooth communication is not supported by the RKX-EVK-001. NOTE: It is normal to see a slight variation in the ODR value. Data is received at varying intervals and the ODR is calculated when ROHM EVK GUI SW receives the data from the used connection layer.

  • Page 38: Odr Has Not Reached The Target Value Pop-Up Window

    The Wake-Up Interrupt pop-up window that is displayed can be replaced with any custom image instead of the original file. The new image file must be called wakeup.png, have an approximate size of 380 x 190 pixels, and be placed in the ROHM EVK GUI SW Resource folder: ..\Documents\ROHM_EVK_v3\ROHM-EVK-GUI\Resources...
  • Page 39 User’s Guide Figure 70. The plotter view with wake up triggered © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 39/55 Feb.2022...

  • Page 40: Shortcuts

    User’s Guide Shortcuts The ROHM EVK GUI SW has many keyboard shortcuts: CTRL + L Enable/disable logging CTRL + S Enable/disable streaming Reset used connection and data streaming (disconnect and connect when having connection problem). Re- CTRL + R enable the Streaming when connection is established.

  • Page 41: Usb Driver

    User’s Guide USB Driver Before connecting the RKX-EVK-001 to a computer, it is highly recommended to install the ROHM EVK GUI SW first by using the installer file available for download on the ROHM Semiconductor website: https://www.rohm.com/support/accelerometer-evk-support If the ROHM EVK software installer is used, a separate USB driver installation for the Infineon CY8CKIT-059 Prototyping Kit is not required. Also, the Windows 10 operating system should automatically use the correct USB driver.
  • Page 42 Right-click the “Evaluation Kit (Infineon)” item, and choose “Update Driver Software …” A new window should open. Select “Browse my computer for driver software” (Figure 73). Figure 73. Update Driver Software - 1 © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 42/55...
  • Page 43 Select “Let me pick from a list of device drivers on my computer”: (Figure 74). Figure 74. Update Driver Software – 2 Choose “Next” (the selection in the list does not matter) (Figure 75). Figure 75. Update Driver Software - 3 © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 43/55 Feb.2022...
  • Page 44 The installer should install required files. If this kind of a pop-up window (Figure 77) appears, please proceed forward by selecting “OK”. You will be returned to an older pop-up window where you should select “Next” (Figure 78). Figure 77. Update Driver Software - 5 © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 44/55...
  • Page 45 Windows will prompt you to install the driver, please select “Install” (Figure 79). Figure 79. Update Driver Software – 7 10. Finally, please wait until the driver installation is complete. © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 45/55 Feb.2022...

  • Page 46: Firmware

    Firmware When the Infineon CY8CKIT-059 Prototyping Kit is supplied as part of the RKX-EVK-001, it will come pre-loaded with the ROHM EVK Firmware to interface with ROHM EVK GUI SW. To flash the latest ROHM EVK Firmware to the CY8CKIT-059 Prototyping Kit please follow the procedure outlined in (3.1 Firmware Update Procedure).
  • Page 47 (File>File Load) or by pressing the F4 key (Figure 81). Next, flash the firmware on the CY8CKIT-059 Prototyping Kit by pressing the Down Arrow button (Figure 81, number 2) or through the © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 47/55 Feb.2022...
  • Page 48 If the programming was successful, the Programming Succeeded message will appear in the Results window (Figure 83). Figure 83. Firmware Upgrade Success Message You are now ready to use CY8CKIT-059 Prototyping Kit with the ROHM EVK GUI SW ! © 2022 ROHM Co., Ltd.

  • Page 49: Troubleshooting And Known Issues

    User’s Guide Troubleshooting and known issues In case of connection problems or an application crash, please check the error log file of the ROHM EVK GUI SW. The default path of this file is: ..\Documents\ROHM_EVK_v3\ROHM-EVK-GUI\errorlog.txt Communication Troubleshooting 4.1.1 RKX-EVK-001 Communication Issues The communication between the ROHM EVK GUI SW and RXK-EVK-001 may not work for several reasons.
  • Page 50 LED1 (CY8CKIT-059) should be constantly ON and not blinking (Figure 85) • If the blue LED1 (CY8CKIT-059) is blinking, the CY8CKIT-059 is not programmed with the ROHM EVK FW. Please program the latest ROHM EVK FW. See (3.1 Firmware Update Procedure) for details. • If the...

  • Page 51: Status: No Data In Stream" In Rohm Evk Gui Sw Status Bar

    This error example issue is limited for RKX-EVK-001 connections. If the connection status as indicated in the status bar says “No data in stream”, the ROHM EVK GUI SW is not receiving any device data. To troubleshoot the issue, please check the following: This example case is valid for RKX-EVK-001 with an EVB.

  • Page 52: Usb Performance Issues

    • The real-time ODR shown in the ROHM EVK GUI SW may show fluctuating and be off the nominal ODR value. If the value is within ~10% of the nominal value, the behavior is normal and can be due to a combination of factors such as fluctuation of the actual sensor ODR due to internal oscillator jitter, as well as the timestamping error mentioned above.

  • Page 53: Net Installation Related Problem

    Desktop shortcuts may not work properly • Sometimes after installation the desktop shortcuts will not work. To overcome this, please uninstall and reinstall the application again to a different destination directory. © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 53/55 Feb.2022...

  • Page 54: Appendix

    User’s Guide Appendix RKX-A3-EVK-001 Detailed Diagram For detailed information of the hardware, please refer to the ROHM EVK HW User's Guide. Figure 88. RKX-A3-EVK-001 Main Features Table 2. RKX-A3-EVK-001 Main Features TP4 - Test Point 4 for VBUS (Host) input voltage measurement 12...

  • Page 55: Interface With Rohm Evk Evb

    User’s Guide Interface with ROHM EVK EVB Figure 89. Interface with ROHM EVK EVB © 2022 ROHM Co., Ltd. No. 64UG118E Rev.002 55/55 Feb.2022...
  • Page 56 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.

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