Renesas ZMID4200 User manual

Evalution Board Manual
ZMID4200
Rev.1.0
Aug 9, 2021
Page 1
© 2021 Renesas Electronics
Description
The ZMID4200 Evaluation Kit enables evaluation of
the Renesas ZMID4200 Inductive Position Sensor IC
via Renesas’ ZMID4200 Application Modules
(available separately).
The main purpose of the ZMID4200 Evaluation Kit is
communication between the user’s computer and the
ZMID4200. The user’s computer sends commands
and data via its USB port to the ZMID
Communication Board (ZMID-COMBOARD).
The microcontroller on the ZMID-COMBOARD
interprets these commands and relays them to the
ZMID4200 located on the ZMID4200 Application
Module using the one-wire interface (OWI)
communication interface.
The microcontroller also forwards data bytes from the
ZMID4200 back to the computer via the USB
connection. These bytes can be sensor readings,
ZMID4200 internal registers values, or ZMID4200
EEPROM contents.
The ZMID4200 EVKIT Application Software is a
graphical user interface (GUI) that is provided online
for the kit. It supports all ZMID4200 configurations
and enables the user to understand the functionality
of the ZMID4200 as well as perform measurements.
Features
■USB “plug and play” – no driver installation
needed
■Small ZMID-COMBOARD: 4cm 7.3cm
■One-wire communication interface (OWI) enables
quick and easy configuration and calibration of the
ZMID4200 using the user’s computer
■PWM, analog, or SENT output (programmable)
■The modular design allows easy swapping in
different ZMID4200 Application Modules (available
separately) for evaluation using the same ZMID-
COMBOARD and ZMID4200 EVKIT Application
Software
■The kit software is available for download from the
Renesas product page for the ZMID-COMBOARD:
http://www.renesas.com/ZMID4200stkit
■Kit Contents
■ZMID-COMBOARD
■Micro-USB cable
Figure 1. ZMID4200 Evaluation Kit and ZMID42200 Application Modules

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Important Notes
Disclaimer
Integrated Device Technology, Inc. and its affiliated companies (herein referred to as “Renesas”) shall not be liable for any
damages arising out of defects resulting from
(i) delivered hardware or software
(ii) non-observance of instructions contained in this manual and in any other documentation provided to user, or
(iii) misuse, abuse, use under abnormal conditions, or alteration by anyone other than Renesas.
TO THE EXTENT PERMITTED BY LAW, Renesas HEREBY EXPRESSLY DISCLAIMS AND USER EXPRESSLY WAIVES ANY
AND ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, WITHOUT LIMITATION, IMPLIED
WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE, STATUTORY WARRANTY OF
NON-INFRINGEMENT, AND ANY OTHER WARRANTY THAT MAY ARISE BY REASON OF USAGE OF TRADE, CUSTOM, OR
COURSE OF DEALING.
Restrictions in Use
Renesas’ ZMID4200 Evaluation Kit, consisting of the ZMID-COMBOARD and micro-USB cable used in combination with the
ZMID4200 Application Module and the ZMID4200 AID EVKIT Application Software, is designed for evaluation and configuration of
the ZMID4200 product family only. Renesas’ ZMID4200 Evaluation Kit hardware and software must not be used for
characterization measurements in terms of replacing calibrated laboratory environment and measurement devices.
Important Safety Warning: These procedures can result in high currents, which can cause severe injury or death
and/or equipment damage. Only trained professional staff should connect external equipment and operate the
software.
Important Equipment Warning: Ensure the correct connection of all cables. Supplying the board using the wrong
polarity could result in damage to the board and/or the equipment.
!
!

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Contents
1. Setup............................................................................................................................................................... 5
1.1 Required User Equipment ..................................................................................................................... 5
1.2 User Computer Requirements and Setup ............................................................................................. 5
1.2.1. Computer Requirements......................................................................................................... 5
1.2.2. Software Installation and Setup .............................................................................................. 5
1.3 Hardware Setup..................................................................................................................................... 5
1.4 Overview of the Hardware..................................................................................................................... 6
1.4.1. Connecting the Kit................................................................................................................... 8
2. ZMID4200 EVKIT Application Software User Guide................................................................................... 9
2.1 Sections of the Display.......................................................................................................................... 9
2.2 Getting Started..................................................................................................................................... 10
2.2.1. Connecting to a Device......................................................................................................... 10
2.2.2. Reading Measurements........................................................................................................ 11
2.3 Changing the Configuration Settings................................................................................................... 14
2.4 Calibration............................................................................................................................................ 16
2.4.1. “COIL OFFSET” Sub-tab....................................................................................................... 16
2.4.2. “OUTPUT RANGE” Sub-tab.................................................................................................. 18
2.4.3. “CALIBRATION AND LINEARIZATION” Tab........................................................................ 22
2.5 Working with the Memory.................................................................................................................... 27
2.5.1. “MEMORY EDIT” Tab ........................................................................................................... 27
2.5.2. Saving and Loading Memory Dump Files............................................................................. 28
2.5.3. Viewing Memory Dump Files without Connecting to a Device (Offline) ............................... 28
2.6 Manually Identifying a Device.............................................................................................................. 29
2.6.1. Identifying an Unknown Device............................................................................................. 29
3. Firmware Update.......................................................................................................................................... 31
4. ZMID-COMBOARD Schematics.................................................................................................................. 32
5. ZMID-COMBOARD BOM.............................................................................................................................. 33
6. Sensors Boards ........................................................................................................................................... 35
7. Glossary........................................................................................................................................................ 35
8. Ordering Information................................................................................................................................... 35
9. Revision History .......................................................................................................................................... 35
Figures
Figure 1. ZMID4200 Evaluation Kit and ZMID42200 Application Modules ..............................................................1
Figure 2. ZMID4200 Evaluation Kit Connections –ZMID4200 Arc Application Module Example ...........................6
Figure 3. ZMID-COMBOARD –Overview................................................................................................................6
Figure 4. ZMID4200 Rotary 360° Application Module –Overview...........................................................................7
Figure 5. ZMID4200 Arc 130°Application Module –Overview.................................................................................8
Figure 6. ZMID4200 Linear Application Module –Overview....................................................................................8
Figure 7. Sections of the GUI Display –Example ZMID4200 ..................................................................................9
Figure 8. Start-up Screen .......................................................................................................................................10

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Figure 9. Display When Connected to a Device.....................................................................................................11
Figure 10. Display When Connected to 2 Devices –ZMID4200 Example.............................................................11
Figure 11. “OUTPUT” Tab – Analog Output Example............................................................................................12
Figure 12. “INTERNAL VALUES” Tab – Analog Output Example..........................................................................13
Figure 13. “SENT” Tab. ..........................................................................................................................................14
Figure 14. "CONFIGURE" Tab –Selection of Memory Type to be Displayed.......................................................14
Figure 15. Buttons in the “I/O FUNCTIONS” Section .............................................................................................15
Figure 16. Options on the “SETTINGS” Menu........................................................................................................15
Figure 17. Example of Numerical Values That Can be Edited...............................................................................15
Figure 18. Example of a Drop-Down Menu with Multiple Choice Values...............................................................15
Figure 19. Example of Read-Only Values..............................................................................................................15
Figure 20. Example of a Modified Value that is Not Yet Saved to Memory ...........................................................16
Figure 21. Example of Tooltip Information..............................................................................................................16
Figure 22. “COIL OFFSET” Tab – ZMID4200 Example .........................................................................................16
Figure 23. Receiver Coil (ABS Value) Offset Example with Offset Compensation =  /2.......................................17
Figure 24. Coil Offset Calibration Completed –ZMID4200 Example.....................................................................17
Figure 25. “OUTPUT RANGE” Tab – ZMID4200 Example ....................................................................................18
Figure 26. Linear Output Mode Example with Slope = 2, Offset = 90° ..................................................................19
Figure 27. Modulus Output Example with Slope = 2, Offset = 60°.........................................................................19
Figure 28. Output without Clamping.......................................................................................................................20
Figure 29. Output Clamped from 20% to 80%........................................................................................................20
Figure 30. Specify the Original Slope.....................................................................................................................21
Figure 31. Request for Changing the Out_Mod Setting .........................................................................................21
Figure 32. Successful Calibration Message...........................................................................................................22
Figure 33. Unsuccessful Calibration Message.......................................................................................................22
Figure 34. "AUTO CAL" Sub-tab –ZMID4200 Example ........................................................................................22
Figure 35. Example Contents of an Input .csv file with Spatial Angle Data ...........................................................23
Figure 36. Example Contents of a .csv Input File with Output Voltage Data .........................................................23
Figure 37. Example of AUTO CAL Error Messages...............................................................................................24
Figure 38. “MANUAL LINEARIZATION” Sub-tab –ZMID4200 Example ..............................................................25
Figure 39. Calibration Diagram...............................................................................................................................26
Figure 40. “MEMORY EDIT” Tab Contents – ZMID4200 Example........................................................................27
Figure 41. Example of a Modified Value on the “MEMORY EDIT” Tab .................................................................27
Figure 42. Example of “MEMORY EDIT” Tab Tooltip Information .........................................................................27
Figure 43. Menu Options for Saving and Loading Memory Dump Files ................................................................28
Figure 44. Viewing a Memory Dump File "Offline" .................................................................................................28
Figure 45. GUI View if an Unknown Device is Selected.........................................................................................29
Figure 46. File Dialog to Select an Identification File .............................................................................................30

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1. Setup
1.1 Required User Equipment
A Windows®-based computer is required for interfacing with the kit and configuring the ZMID4200.
1.2 User Computer Requirements and Setup
1.2.1. Computer Requirements
The user must have administrative rights on the computer to download and install the ZMID4200 EVKIT
Application Software for the kit.
The computer must meet the following requirements:
■Windows® Vista SP1 or later, 7 (including SP1), 8, 8.1, or 10.
●Note: Touch screens are not supported.
●Note: Windows® XP is no longer supported. Contact Renesas for assistance. See contact information on
the last page.
■Supported architecture: x86 and x64.
■Available USB port.
■Internet access for downloading the ZMID4200 EVKIT Application Software.
■Microsoft® .NET Framework 4.0
1.2.2. Software Installation and Setup
The ZMID4200 EVKIT Application Software is not included with the kit. To ensure use of the latest version of the
software, it is available for download free of cost in zip file format from the Renesas web site on the web page
given on page 1.
Follow these procedures to install the ZMID4200 EVKIT Application Software:
1. After downloading the zip file to the user’s computer, extract the contents of the zip file.
2. Double-click on the extracted setup.exe file to activate the installation.
3. Follow the standard installation instructions displayed on the screen and change the installation path if
required. If the default path settings have been used, the software automatically completes the installation
and creates an access link on the user’s computer under Start > All Programs > Renesas > ZMID4200
EVKIT. The installation dialog offers the option to create a desktop short-cut icon for the software.
1.3 Hardware Setup
This section describes the basic hardware setup of the ZMID4200 Evaluation Kit boards and provides a brief
overview on the components. Refer to the user manual for the specific ZMID4200 Application Module for the
setup required for the target holder, which is shown in Figure 1, and for further details for the module such as
schematics and BOMs. The application module user manuals are available on the Renesas product web pages
for the modules: See section 6 for the Renesas product web pages for the application modules to download the
manuals.

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1.4 Overview of the Hardware
Figure 2 shows the board connections for the ZMID4200 Evaluation Kit using the ZMID4200 Arc Application
Module (ZMID4200MARC18001) as an example.
Figure 2. ZMID4200 Evaluation Kit Connections –ZMID4200 Arc Application Module Example
P5 Micro-USB
Connector: Connect to
User s Computer
Reset Button
P2: Connect to Application
Module Sensor Board Via
Flat Cable
P4: Connect to Optional Additional
Application Module Sensor Board Via
Flat Cable
P8 Boot
Pins LED1 (Red): Fault
Indicator
LED2 (Green): Information LED Indicator for Normal Operation Status
LED3 (Blue): Information LED
Indicator for Initialization or
Communication
LED4 (Red): Board Power Indicator
Figure 3. ZMID-COMBOARD –Overview

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Table 1. ZMID-COMMBOARD Key Components and Connector Descriptions
Note: See Figure 3 for the components referenced in this table.
Label
Description
P2
Connector to the ZMID4200 Application Module Sensor Board. Note: The same signals are on the adjacent 4-pin
header P1, which has silkscreen labels for the pin signals: NC (no connection), GND, OUT, and VDD.
P4
Alternative connection for the ZMID4200 Application Module Sensor Board instead of P2 or for an optional
connection for a second Application Module Sensor Board. If connecting to two modules at the same time, the
ZMID4200 ICs on the modules must have the same output option (e.g., 2 xAnalog ouputs). Note that the same
signals are available on the adjacent 4-pin header P3, which has labels for the pin signals: NC (no connection),
GND, OUT, and VDD.
P5
USB connector to the host PC.
P8
Boot pins.
Reset
Reset board button.
LED1 (Red)
Fault indicator LED: ON indicates an error.
LED2 (Green)
Information LED: ON indicates normal operational status.
LED3 (Blue)
Information LED: ON indicates initialization/communication.
LED4 (Red)
Board power indicator.
Figure 4, Figure 5, and Figure 6 give an overview of the different ZMID4200 Application Module Sensor Boards
before installation of the target holder for each type of board. The three boards have the same connectors and
components given in Table 2 and identified in the figures.
Table 2. ZMID4200 Application Module: Key Components and Connector Descriptions
Label
Description
P1
4-pin Molex Picoflex header for cable to the ZMID-COMBOARD.
P2
PCB 4-pin header for de-bugging purposes. If the user’s microcontroller is used instead of the ZMID-
COMBOARD, P2 can be used to connect the microcontroller to the Application Module.
D1
Power Indicator LED for the VDD.
ZMID4200 Sensor IC
P1 Application Module
Connector for the
ZMID-COMBOARD
P2 Application Module
Interface Header for
Troubleshooting Purposes
D1 Power Indicator LED
Measurement Range: 360°
Coil Range: 360°
Target: 180° (50%)
35mm
55mm
Target Positions
Figure 4. ZMID4200 Rotary 360° Application Module –Overview

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ZMID520x Sensor IC
P1 Application Module
Connector for the
ZMID-COMBOARD
P2 Application Module
Interface Header for
Troubleshooting Purposes
D1 Power Indicator LED
Measurement Range: 130°
Coil Range: 180°
Target: 40° (22%)
45mm
60mm
Max.
Target
Position
Max.
Target
Position
Figure 5. ZMID4200 Arc 130°Application Module –Overview
ZMID4200 Sensor IC
P1 Application Module
Connector for
ZMID-COMBOARD
P2 Application Module Interface Header
for Troubleshooting Purposes D1 Power Indicator LED Measurement Range
12mm (50% Target)
30mm
75mm Target Positions
Figure 6. ZMID4200 Linear Application Module –Overview
1.4.1. Connecting the Kit
Important Equipment Warning: Ensure the correct connection of all cables. Supplying the board using the
wrong polarity could result in damage to the board and/or the equipment.
1. Ensure that the ZMID-COMBOARD is not connected to the computer.
2. Assemble the ZMID4200 Application Module with the target holder as described in the user manual for the
specific application module.
3. Connect the ZMID4200 Application Module via the flat cable to the ZMID-COMBOARD as shown in the
example for the ZMID4200 Arc Application Module in Figure 2. See Figure 1 for the connections for the
ZMID4200 Linear Application Module and ZMID4200 Rotary Application Module.
4. Connect the ZMID-COMBOARD to the computer using the micro-USB cable provided in the ZMID-
COMBOARD. Power is provided from the computer via the USB connection. No external power source is
required.
5. The indicator LED2 on the ZMID-COMBOARD will light (see Figure 3) if conditions are normal. This
indicates that the board is ready to communicate with the ZMID4200 EVKIT Application Software. The D1
LED on the ZMID4200 Application Module (see Figure 4, Figure 5, or Figure 6) also lights when the board is
powered on.
!

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2. ZMID4200 EVKIT Application Software User Guide
2.1 Sections of the Display
The ZMID4200 EVKIT Application Software provides a graphic user interface (GUI) for communicating with the
kit. The GUI is displayed when the application is started. Figure 7 identifies the various sections of the display.
1
5
4
8
9
6
3
2
10
7
Figure 7. Sections of the GUI Display –Example ZMID4200
Menu bar: Contains settings and tools.
Navigation tabs: Used to switch between the different
main window tabs.
Information label: Displays the name of the
connected device.
The output of the sensor can be programed, Analog ,
PWM or SENT
“CONNECTION” section: Displays connection-related
options.
“ACTIVE DEVICES” section: Displays a list of the
currently connected communication boards.
“IC STATUS” section: Displays status information
from the connected device.
Main window area: Displays options and information
about the connected device.
“I/O FUNCTIONS” section: Displays options to
perform READ and WRITE actions on the connected
device.
Status bar: Displays status messages during
operation.
1
6
2
7
3
8
4
9
5
10

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2.2 Getting Started
The following steps describe how to establish a connection to the ZMID4200 Application Module and perform
measurements. The combination of a ZMID-COMBOARD and its connected ZMID4200 Application Module is
referred to as the “device” in the GUI.
2.2.1. Connecting to a Device
1. Ensure that the ZMID4200 Application Module is properly connected to the ZMID-COMBOARD. See section
1.4.1.
2. Connect the ZMID-COMBOARD to the user’s computer using the micro-USB cable provided in the kit.
3. Start the GUI application. See Figure 8 for the start-up screen.
4. The device will appear in the “Active Devices” section. If there are no other devices on the list, it will be
automatically selected; otherwise select it by clicking on it.
5. If the device shows as unknown, manually identify the device first. For a description of how to manually
identify a device, refer to section 2.6.
6. Click on the “Connect” button to initialize the connection.
7. After a successful connection, the GUI will display the contents of the main window area.
8. Two sensor boards can also be connected to the ZMID-COMBOARD at the same time; see Figure 10 for an
example. Data are displayed according to the selection made through the drop-down menu on the top left
side (Module 1 or Module 2). When connecting to two modules at the same time, both ZMID4200 ICs on the
modules must have the same output option (e.g., 2 x Analog outputs).
Figure 8. Start-up Screen

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Figure 9. Display When Connected to a Device
Figure 10. Display When Connected to 2 Devices –ZMID4200 Example
2.2.2. Reading Measurements
1. After connecting to a device, select the “MAIN” tab from the navigation menu. Two sub-tabs “OUTPUT” and
“INTERNAL VALUES” are displayed. For the ZMID4200, the “SENT” sub-tab is also displayed and provides
a SENT interface decoder. The “OUTPUT” tab displays the reading at the ZMID4200 output pin SOUT.
2. The readings can be displayed as scaled values in percent or as raw (decimal/hexadecimal) values. Use the
“Component 1” radio buttons (“%” or “Raw”) to select the desired method for presenting the values. If there

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are two devices, repeat the selection for the second device using the “Component 2” radio buttons.
The “OUTPUT” tab readings in percent represent:
●Analog values–Percent of VDD
●PWM values–Duty cycle of the signal
●SENT values–Percent of the maximum position SENT value (4095)
The “OUTPUT” tab readings in raw data represent:
●Analog values –12-bit value from the ZMID COMBOARD’s ADC with VDD for reference voltage
●PWM values –12-bit value from the duty cycle calculation
●SENT values –12-bit position value decoded from the SENT stream
3. Clicking the “Start” button will activate the measurements and change this button to the “Stop” button. The
GUI disables some of its buttons and options while the measurement is active. Clicking the “Stop” button will
deactivate the measurement and reactivate all options and buttons again.
4. At the bottom of each measurement tab, the “Enable Create Log” check box can be checked to log the
measured values into a *.csv file. The filename and its location are specified with the “Select File” entry field.
The “OUTPUT” tab displays the physical values by using either the ADC or digital inputs of the ZMID-
COMBOARD. Figure 11shows an example of Analog Output. For the PWM or Analog interface, the values are
captured using an analog-to-digital conversion by the microcontroller located on the ZMID-COMBOARD. Hence,
the accuracy of the measured values is limited due to the setup. The ZMID Evaluation Kit is a configuration tool
–it is not intended to act as a measurement device.
Figure 11. “OUTPUT” Tab – Analog Output Example

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The “INTERNAL VALUES” tab displays measurements that are only accessible via OWI (see Figure 12).
Therefore, all the readings are digital register contents and not limited in terms of hardware accuracy.
Figure 12. “INTERNAL VALUES” Tab – Analog Output Example
There are three controls that can be used to view and change settings on the device:
■AGC Mode: Gain and integration time control –used to enable or disable the Automatic Gain Control (AGC)
and the Integration Time Control of the device. The following standard options are available in the drop-down
menu:
●Gain adaptation and integration time adaptation off
●Gain adaptation and integration time adaptation on
Two additional options are available for the AGC Mode that are for advanced testing only. Note: Before using
either of these options, contact Renesas support (see the last page for the contact information).
●Gain adaptation off and integration time adaptation on
●Gain adaptation on and integration time adaptation off
■AGC Gain Stage. Depending on the AGC Mode, this control has different behaviors:
●When the AGC is active (“Gain and integration time adaptation” is on), the value in the “ACG Gain Stage”
entry field specifies the maximum gain for gain regulation. During measurements, the box becomes read-
only and displays the existing gain stage setting that the ZMID4200 is using.
●When the AGC is disabled (“Gain and integration time adaptation” is off), the value in the input field
specifies the selected gain stage.
■Over Sampling Rate (OSR). This parameter defines the number of averaging samples per receiving channel
and reduces the noise level on the signal.
The “SENT” tab is only available when the ZMID4200 Application Module is set to SENT output and connected
to the ZMID-COMBOARD. It displays the decoded SENT data information as shown in Figure 13.

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Figure 13. “SENT” Tab.
2.3 Changing the Configuration Settings
The “CONFIGURE” tab (see Figure 14) is designed to provide the user with an easy way of viewing and editing
the IC configuration. Each value represents a register or a part of a register from the internal memory of the
device. The displayed memory type can be either the ZMID4200 EEPROM or the SWR memory. SWR refers to
shadow registers used as the working memory for the ZMID4200, which can be temporarily written via the GUI
to the ZMID4200 for development purposes.
Figure 14. "CONFIGURE" Tab –Selection of Memory Type to be Displayed
If parameters in the EEPROM memory selection have been changed, the ZMID4200 must be reset after the
writing process is finished for the changes to take effect. This is done automatically after pressing the “Write
EEPROM” button in the “I/O FUNCTIONS” section (see Figure 15). This can be disabled via the “SETTINGS”
menu > “Reset on Memory Write.” In the case of the SWR selection, by default, changes are immediately written

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to the SWR memory of the ZMID4200. This option can be disabled via the “SETTINGS” menu > “Enable
Automatic SWR Write” (see Figure 16). Clicking the “Write SWR to EEPROM” button in the “I/O FUNCTIONS”
section copies all of the current SWR settings to the EEPROM memory of the device. This section also provides
the “Reset IC” button for manually resetting the ZMID4200. The reset power cycles the device and puts it in
Command Mode. After reset, the contents of the EEPROM of the device are copied to its working memory SWR.
Figure 15. Buttons in the “I/O FUNCTIONS” Section
Figure 16. Options on the “SETTINGS” Menu
There are three different data types shown on the “CONFIGURE” tab:
1. Numerical values are displayed in a white field (see Figure 17). If they are hexadecimal, “0x” is automatically
inserted at the beginning of the value.
2. Values with predefined multiple choices are displayed in a drop-down menu (see Figure 18).
3. Read-only values are displayed with a light blue background. They can only be selected and copied (see
Figure 19).
Figure 17. Example of Numerical Values That Can be Edited
Figure 18. Example of a Drop-Down Menu with Multiple Choice Values
Figure 19. Example of Read-Only Values

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Changing a value will change the font color to red (see Figure 20). This indicates that the change has not yet
been applied to the actual memory (EEPROM or SWR) of the IC. To apply the change, click the corresponding
“Write…” button in the “I/O FUNCTIONS” section. If the “Reset IC” or one of the “Read” buttons is pressed, the
values will be set to represent the current settings of the device.
Figure 20. Example of a Modified Value that is Not Yet Saved to Memory
Context-sensitive pop-ups (see Figure 21), referred to as “tooltips,” provide additional information that appears
briefly as the cursor hovers over an element on the screen. The tooltips for entry fields include a brief description
of the setting and the address of the internal memory register.
Figure 21. Example of Tooltip Information
2.4 Calibration
There are three sub-tabs under the “CALIBRATION” tab: COIL OFFSET, OUTPUT RANGE, and CALIBRATION
AND LINEARIZATION.
2.4.1. “COIL OFFSET” Sub-tab
The “COIL OFFSET” sub-tab is located under the “CALIBRATION” tab (see Figure 22). It is used to compensate
the offset of the signal acquired from coils R1 and R2 connected to the ZMID4200.
Figure 22. “COIL OFFSET” Tab – ZMID4200 Example
For each of the coils, the following are displayed:
1. R1 Offset –Offset applied to the signal from the R1 coil.
2. R2 Offset –Offset applied to the signal from the R2 coil.

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The GUI automatically determines which of the coils is the sine and cosine signal based on the current
configuration settings. The two signals are color coded in red and green. When the “Read” button is pressed, the
current sine and cosine and their maximal and minimal values are displayed next to the graph.
Figure 23. Receiver Coil (ABS Value) Offset Example with Offset Compensation =  /2
To start the automatic calibration for amplitude offset, click the “Start Offset Compensation” button. The GUI will
guide the user through a sequence of instructions for performing the calibration procedure.
1. Remove the target from the coil, and press “Ok.”
2. Wait for a few seconds for the GUI to measure the offset. It will automatically continue to the next step.
3. Values for the Offset will be updated (see Figure 24).
4. Use the “Write EEPROM” button from the “I/O FUNCTIONS” section to save the new values to the
EEPROM.
Figure 24. Coil Offset Calibration Completed –ZMID4200 Example

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2.4.2. “OUTPUT RANGE” Sub-tab
The “OUTPUT RANGE” sub-tab (see Figure 25) is used to configure the output behavior of the ZMID4200. For a
detailed description of output settings, refer to the ZMID4200 Datasheet.
Figure 25. “OUTPUT RANGE” Tab – ZMID4200 Example
There are four values that can be edited on the “OUTPUT RANGE” sub-tab for subsequent use during the
calibration procedure:
■The “Output Start Point [%]” field defines the desired output value when the target is at the mechanical start
point.
■The “Output End Point [%]” field defines the desired output value when the target is at the mechanical end
point.
■The “Apply Clamps” checkbox is available only for the Analog or PWM interfaces. If activated, the output is
clamped between the specified start and end points if the target goes beyond these mechanical positions. Due
to the low resolution of the clamps register, the available clamping values might not match the selected output
start and end points exactly. See Figure 28 and Figure 29 for examples of the output without clamping and the
output with clamping, respectively.
■Out MOD: Defines the output mode.
●Linear: The Linear Output Mode is a non-repeating output mode in which the sensor output signal is
clamped at the mechanical end points (see Figure 26).
●Modulo 360: The Modulo Output (saw tooth output) Mode is a repeating output mode in which the sensor
output signal is not clamped at the mechanical end points, but it is switched back to its origin (see Figure
27).

ZMID4200 Evaluation Board Manual
Rev.1.0
Aug 9, 2021
Page 19
Figure 26. Linear Output Mode Example with Slope = 2, Offset = 90°
Figure 27. Modulus Output Example with Slope = 2, Offset = 60°
The results from the calibration procedure are displayed in two fields on the “OUTPUT RANGE” tab. They are
direct representations of the Offset and Slope registers in the ZMID4200. The values can also be manually
entered by the user.
■Slope: The slope of the transfer function of the output signal.
■Offset: The zero-offset of the output signal referenced to the mechanical position in degrees.
0
10000
20000
30000
40000
50000
60000
70000
050 100 150 200 250 300 350
Output position [decimal]
Electrical input range [degree]
Linear mode example
Output
Spatial Angle
0
10000
20000
30000
40000
50000
60000
70000
050 100 150 200 250 300 350
Output position [decimal]
Electrical input range [degree]
Modulus mode example
Output
Spatial Angle

ZMID4200 Evaluation Board Manual
Rev.1.0
Aug 9, 2021
Page 20
Figure 28. Output without Clamping
Figure 29. Output Clamped from 20% to 80%
Automatic Output Calibration Procedure:
To start the automatic calibration, click the “Start Calibration” button. The GUI will guide the user through a
sequence of instructions for performing the calibration procedure.
1. Move the sensing target to the start position, and click “OK” in the dialog box. The graph will start displaying
the internal reading of the position.
2. Move the sensing target to the end position, and click OK. The GUI will automatically attempt to determine if
the slope polarity of the values is positive (values ascending) or negative (values descending). If this cannot
be determined, the GUI will ask the user to specify the polarity of the slope. For the example provided in
Figure 30, the slope is negative.