Infineon TLE493D 3D Magnetic Sensor 2 Go evaluation kit User Manual

Infineon TLE493D 3D Magnetic Sensor 2 Go evaluation kit Introduction

Infineon’s 3D Magnetic Sensor 2 Go is a compact evaluation kit to familiarize the user with the 3D Hall sensor TLE493D-P2B6. In a short time the board is set up and own 3D magnetic measurements can be executed. All required hardware is included and the software can be downloaded for free from the Infineon web page.
This user manual describes the different parts of the board, the software installation process and clarifies how the Graphical User Interface (GUI) can be used to do first evaluations. Further it is shown where to find example code and an Arduino library as a easy starting point for own developments.

Hardware overview

The 3D Magnetic Sensor 2 Go kit contains:

• The 3D evaluation board (EvalBoard) as shown in Figure 1, a ready-to-use printed circuit board (PCB) with the 3D Hall sensor. The EvalBoard is based on the XMC2Go-Kit. More technical documents and detailed description can be found at http://www.infineon.com/xmc2go
• A standalone 7x7x5 mm ferrite block magnet
  To use the 3D Magnetic Sensor 2 Go kit the user has to acquire a USB cable with a micro USB connection-end for the EvalBoard side and a conventional USB connection for the PC side.

Software

The required software to run the kit can be found at the Infineon web site. For further information refer to the chapter Software installation.
The software package contains:

• A Graphical User Interface (GUI) for sensor evaluation.
• Firmware to be flashed into the XMC microcontroller for the low level communication with the sensor.
• USB driver J-Link from Segger which is necessary to establish the USB connection.
  This software was designed to be used with Windows 7 and Windows 10. It is compatible with both 32-bit and 64-bit system types. Backward compatibility with older Windows versions is ensured only by the .NET platform as specific tests were not conducted on older operating systems.
  The USB protocols capabilities are defined by the Segger driver. Versions USB 2.0 and USB 3.0 are compatible.
  The GUI is used to enable a communication between the sensor and the PC. The user can configure the sensor to operate in different modes. In those modes the update rate of the magnetic field measured (X, Y and Z components) and current consumption vary.

Hardware extensions

Additionally to the provided standalone magnet there are several dedicated extensions available that can be mounted to the 3D Magnetic Sensor 2 Go kit.
Table 1 3D Magnetic Sensor 2 Go extensions

Joystick
The magnet used in the joystick extension is an axial magnetized magnet as shown in Figure 3. The magnet material is ferrite, of class Y35, which is equivalent to a remanence of between 400 mT and 410 mT. The magnet disk has a size of 5 mm diameter and 5 mm thickness. For more information about the magnet, please follow this link:
https://www.supermagnete.de/eng/disc-magnets-ferrite/disc-magnet-5mm- 5mm_FE-S-05-05 Rotation knob
The magnet used in the rotate knob extension is a diametrically magnetized magnet as shown in Figure 4. The magnet material is Neodymium Iron Boron (NdFeB) of class N45. The magnet is protected against corrosion with Nickel coating (Ni-Cu-Ni). The magnet size is 4 mm diameter and 10 mm thickness. For more information about the magnet, please follow this link:
https://www.supermagnete.de/eng/rod-magnets-neodymium/rod-magnet-diameter- 4mm-height-10mm-neodymium-n45-nickel-plated_S-04-10-DN Out of shaft
The magnet used in the out of shaft extension is a diametrically magnetized ring magnet as shown in Figure 5 . The magnet material is Neodymium Iron Boron (NdFeB) of class N45. The magnet is protected against corrosion with Nickel coating (Ni-Cu-Ni). The magnet size is 10 mm outer diameter, 7 mm inner diameter and 3 mm thickness. For more information about the magnet, please follow this link:
https://www.supermagnete.de/eng/ring-magnets-neodymium/ring-magnet-10mm-7mm- 3mm_R-10-07-03-DN

Linear slider
The linear slider extension comes with two axial magnetized magnets of the same size as shown in Figure 6. The first magnet material is Neodymium Iron Boron (NdFeB) of class N45. The magnet is protected against corrosion with Nickel coating (Ni-Cu-Ni). The second magnet material is ferrite, of class Y35, which is equivalent to a remanence of between 400 mT and 410 mT. Both magnet disk has a size of 5 mm diameter and 5 mm thickness. For more information about the magnets, please follow this links: https://www.supermagnete.de/eng/disc-magnets-neodymium/disc-magnet-5mm- 5mm_S-05-05-N  https://www.supermagnete.de/eng/disc-magnets-ferrite /disc-magnet-5mm-5mm_FE-S-05-05

EvalBoard description

The evaluation board (EvalBoard) is a ready-to-use printed circuit board (PCB) that contains:

• The 3D magnetic sensor TLE493D-P2B6. For the availability of 3D Magnetic Sensor 2 Go kits with different sensor variants check the Infineon web page: https://www.infineon.com/cms/en/product/sensor/magnetic-sensors/magnetic-position-sensors/3d-magnetics/
• XMC1100 microcontroller based on ARM Cortex™-M0 at 48 MHz frequency connected to the 3D sensor.
• XMC4200 microcontroller based on ARM Cortex™-M4 at 144 MHz frequency used for debugging and USB communication.
• Micro USB connector for power supply and communication with the Graphical User Interface (GUI).
• LED for indication of power supply and debugging.
• Two LEDs for user configuration.
• Voltage regulator, reverse current protection diode and ESD protection diode.
• Pin headers to access data lines (e.g. via oscilloscope, external microcontroller).
  The different components and its location are shown in Figure 7. The 3D magnetic sensor can be separated from the rest of the EvalBoard by cutting the break line.

Optional external power supply

The 3D Magnetic Sensor 2 Go EvalBoard is supplied via the USB cable. It is also possible to provide an external power supply. If this is the case, a few considerations must be taken into account as described below.
The 3D Magnetic Sensor 2 Go EvalBoard must be supplied by external 5 Volt DC power supply connected to the micro USB plug. The voltage regulator shifts the voltage level to 3.3 V for the microcontrollers and the 3D magnetic sensor. The Power & Debug LED indicates that the presence of the generated 3.3 V supply voltage.
Out of the box with the pre-programmed application and the on-board debugger in operation the EvalBoard typically draws about 75 mA. This current can be delivered via the USB plug of a PC, which is specified to deliver up to 500 mA. An on-board reverse current protection diode will ensure safe operation and protects the USB port of the Laptop/PC in case power is provided through the pin header X1.

EvalBoard description
It is not recommended to apply an additional power supply to the VDD pin of X1 (3.3 V) when the board is powered via USB, because the 3.3 V supply could drive against the on-board power supply. The VDD pin can be used to power an external circuit. But care must be taken not to draw more current than 150 mA, which is the maximum current the on-board voltage regulator can deliver. After power-up the Debug LED starts blinking. In case there is connection to a PC with correctly installed drivers, the Debug LED will turn from blinking to constant illumination.

Pin header connector

The pin headers X1 and X2 can be used to extend the evaluation board or to perform measurements on
the XMC1100. The order of pins available at X1 and X2 corresponds to the pinning schema of the XMC1100 microcontroller in the TSSOP-16 pin package. The pinning table is also printed onto the bottom side of the PCB (depending on the version). The pin header X3 can be used to access directly the 3D magnetic sensor pins.

The 3D Hall sensor pins can be accessed via the pin headers as shown in Table 2.
Table 2        Pin header description for the 3D magnetic sensor (X3)

TLE493D-P2B6 pin

number

| Pin name on board| XMC1100 port pin| Sensor pin description
---|---|---|---
1| SCL| P2.11| Interface clock and \INT pin, open drain
3| GND| GND| Ground pin
4| +3V3| P1.0| Supply pin
6| SDA| P2.10| Interface data pin, open drain

The XMC1100 port pins P0.12 and P1.1 are connected the two user LEDs and are not available on the pin headers.
Table 3                 Pins used for the user LEDs

EvalBoard schematics

The schematics of the different blocks from the EvalBoard of the3D Magnetic Sensor 2 Go kit are provided in this chapter. They can be used to design customized PCBs. The user (integrator) is responsible for the correct functioning on system level as well as for the validation and testing.

Software installation

The following description guides through the installation procedure of the free evaluation software for the 3D Magnetic Sensor 2 Go kit.
Steps

1. Download the software.
   The instructions how to download the evaluation software are included in the delivery package of the sensor 3D magnetic sensor 2Go kit.

2. Start the installation process.
   Browse to your download folder and extract the downloaded .zip file. Afterwards, double click on the .msi file to start the installer. The window in Figure 15 pops up. Click “Next”.

3. Read the license agreement carefully and tick the box to accept the terms. Click Next.

4. Choose your installation path. The software requires the SEGGER J-Link driver and .NET framework version 4.5 or later to be installed on your PC. If not yet available, check the respective items. Click Next

5. Confirm the installation settings by clicking on Install.

6. Once the installation is complete, click on Finish to close the installer

7. You can now start the evaluation software. Open the start menu, browse to Infineon Technologies > 3D Sensor 2go Kit and open the application by clicking on 3D 2Go.

Driver installation

To enable the communication between the 3D Magnetic Sensor 2 Go kit it is necessary to install the J-Link driver on your PC.
The driver is included in the GUI installer and will start automatically within the installation progress. In case of issues, you can directly download the latest version from the SEGGER homepage: https://www.segger.com/downloads/jlink
Steps

1. Start the installation. Invoke your downloaded driver executable or wait for the 3D Magnetic Sensor 2 Go installer to open the window shown in Figure 21. Click on Next.
2. Read and accept the license agreement. Click on I Agree.
3. Check that the “Install USB Driver for J-Link” option is active. Click on Next.
4. Choose the installation folder. It is recommend to keep the default settings. Click on Install. Now the installation should be executed.
5. Once the installation is completed, close the installer by clicking on Finish.

3D magnetic sensor evaluation

3D magnetic sensor evaluation

Getting started

1. Connect the EvalBoard to the PC via the USB cable. Use the micro USB port for the EvalBoard and USB port for the PC. The power LED on the EvalBoard will switch on, indicating the EvalBoard is supplied with enough power.
2. Open the 3D 2Go GUI by clicking the shortcut in the start menu. On the top left side you should find the XMC2Go board in the list. If not, check that the EvalBoard is correctly connected to the PC and the J-Link driver is installed. Click on the Connect to selected programmer button which is marked in Figure 26 to establish the connection with the 3D Magnetic Sensor 2 Go kit. The first time you connect the board, a firmware will be downloaded to the XMC1100 which takes short time. This is indicated by the blinking power LED on the EvalBoard.
3. The GUI automatically detects the sensor type on the 3D Magnetic Sensor 2 Go kit. Different configuration modes can be selected which are briefly described in Table 4 . For details refer to the TLE493D-P2B6 data sheet and user manual. After you have selected the mode, click on Start to begin with the measurements.

Graph View

The graph view displays the magnetic field measurements in X, Y and Z direction. Figure 27 shows the graph view window. On the left hand side there are three histograms which plot the magnetic field for each measured sample. On the right a table displays all measured data, including the temperature. With the save button it is possible to export the measurement data into a .csv file. This is especially helpful for processing the data afterwards. . If a new mode should to be evaluated click the Stop button on the left control panel. Save the data and Clear it. Select a new configuration and click again on Start to begin the new evaluation.

Joystick view

The joystick view is a virtual representation of a real joystick with an attached magnet, mounted above the 3D magnetic sensor.
It is intended to be used with the Joystick adapter available for the 3D Magnetic Sensor 2 Go kit. For order details and information about the used magnet refer to section Hardware extensions .
The software measures the magnetic field in all three dimensions and calculates the angles necessary to determine the joystick position. Further information is given in the application note “Infineon 3D Magnetic Sensor – How to Make a Magnetic Design for Joystick” which can be found on the Infineon home page.

Rotation view

In this view the calculated spherical coordinates of the magnetic field are displayed. Additionally it includes a graphical presentation of the 3D Magnetic Sensor 2 Go rotary knob attachment .
The polar coordinates consist of the radius r as well as the angles Phi and Theta. They are calculated out of the measured three dimensional magnetic field with following equations:
r = Bx2 + By2 + Bz2
Phi = arccosBz Theta = arctanBy Bx
Below the polar coordinates a virtual rotation knob can be found. It can be used with the rotary knob attachment described in Hardware extensions. When the user turns the hardware knob, also the indicator in the GUI turns. This is achieved by measuring the magnetic field and calculating the angle between Bx and By as described above. Also a push functionality is implemented depending on the radius r of the magnetic field.

Linear movement

This view is meant to be used with the linear slider extension. It allows to measure the position of the magnet in a slide by configuration.
For details have a look on the video “3D magnetic sensor linear slider adapter for sensor 2GO Kits” on the following page:
https://www.infineon.com/cms/en/product/promopages/sensors-2go/#Add-ons-3D- Magnetic-2GO

Out of shaft

This view is meant to be used with the out of shaft extension. It allows to measure the angle of the magnet while the sensor is placed at the side of it.
For details have a look on the video “3D magnetic sensor out of shaft adapter angle measurement” on the following page:
https://www.infineon.com/cms/en/product/promopages/sensors-2go/#Add-ons-3D- Magnetic-2GO

Example code for developers

Additionally to the graphical user interface a low level library is provided as a quick entry point for own developments with the 3D magnetic sensor. It can be downloaded from the link below.
https://www.infineon.com/cms/de/product/sensor/magnetic-sensors/magnetic- position-sensors/3d-magnetics/#!tools
The library comes with a generic C code example as well as a specific implementation for the XMC based 3D Magnetic Sensor 2 Go kit. An comprehensive documentation can be found under the respective “doc” folder. For the html version open the “index.html” file with your browser.

XMC for Arduino

Finally, the 3D Magnetic Sensor 2 Go kit can be used in combination with the Arduino IDE. A library is provided to enable a fast evaluation in the individual application. More details and the download can be found at the link below:

Finally, the 3D Magnetic Sensor 2 Go kit can be used in combination with the Arduino IDE. A library is provided to enable a fast evaluation in the individual application. More details and the download can be found at the link below:
WARNINGS
Due to technical requirements products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office.
Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury.

References

• Semiconductor & System Solutions - Infineon Technologies
• KIT_XMC_2GO_XMC1100_V1 - Infineon Technologies
• Semiconductor & System Solutions - Infineon Technologies
• 3D Magnetics - Infineon Technologies
• XENSIV™ - Sensors 2GO Kits - Infineon Technologies
• Sensor technology - Infineon Technologies
• 3D magnetic sensors - Infineon Technologies
• Disc magnet 5 x 5 mm, Ferrite - supermagnete.de
• Disc magnet 5 x 5 mm, Nickel-plated - supermagnete.de
• Ring magnet 10 x 7 x 3 mm, diametrically magnetised - supermagnete.de
• Rod magnets 4 x 10 mm, diametrically magnetised - supermagnete.de

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