Renesas ZSSC5101 Operating and installation instructions

ZSSC5101 Evaluation Kit Description
© 2016 Integrated Device Technology, Inc.
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March 11, 2016
Important Notes
Restrictions in Use
IDT’s ZSSC5101 SSC Evaluation Kit, consisting of the SSC Communication Board (SSC CB), the ZSSC5101 Adapter
Board (SSC EB), the ZSSC5101 AMR Demo Board, and the calibration software, is designed for sensor module
evaluation, laboratory setup, and module calibration development only.
IDT’s Evaluation Kit hardware and software must not be used for module production or production test setups.
Disclaimer
IDT 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 IDT.
To the extent permitted by law, IDT 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.
Contents
1Introduction.......................................................................................................................................................3
1.1. Kit Contents...............................................................................................................................................3
1.2. Downloading the Evaluation Kit Software .................................................................................................4
2Hardware Setup ...............................................................................................................................................5
3Software Setup.................................................................................................................................................6
3.1. IDT Communication Board Driver Installation...........................................................................................6
3.1.1. Compatibility Check ............................................................................................................................6
3.2. Starting the ZSSC5101 Evaluation Software ............................................................................................8
4Using the ZSSC5101 Evaluation Software ......................................................................................................9
4.1. Software Revision......................................................................................................................................9
4.2. “Setup” Tab................................................................................................................................................9
4.3. “ADC and Offset Calibration” Tab ...........................................................................................................11
4.3.1. Offset Calibration ..............................................................................................................................12
4.3.2. Estimating the Resulting Angle Error................................................................................................13
4.4. “Read Angle” Tab ....................................................................................................................................13
4.5. “Angle Calibration” Tab............................................................................................................................14
4.5.1. Setting the Angle Range Limits and Switch Angle............................................................................15
4.5.2. Checking the Calibrated Angle .........................................................................................................17
4.5.3. Indication of Possible Errors during Programming ...........................................................................17
4.6. Selecting the Slope of the Angle Calibration and Writing the Settings ...................................................17

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4.7. “Digital Out” Tab ......................................................................................................................................18
4.8. “Analog Out” Tab.....................................................................................................................................19
4.9. “Memory” Tab..........................................................................................................................................21
4.9.1. Loading and Saving EEPROM Settings ...........................................................................................22
4.10. Diagnostics Conditions............................................................................................................................22
5Related Documents........................................................................................................................................23
6Glossary .........................................................................................................................................................23
7Document Revision History............................................................................................................................23
List of Figures
Figure 1.1 ZSSC5101 Evaluation Kit Boards.......................................................................................................3
Figure 2.1 Default Hardware Set-up....................................................................................................................5
Figure 3.1 Example of Properties for a USB Serial Converter under the Device Manager.................................6
Figure 3.2 Updating the Driver for the Communication Board (FT232R USB UART under Device Manager)...7
Figure 3.3 Location of the FTDI Driver in the ZSSC5101 Evaluation Software Directory ...................................7
Figure 3.4 Confirmation Message after Installing FTDI Driver.............................................................................8
Figure 3.5 Location of the ZSSC5101 Evaluation Software ................................................................................8
Figure 4.1 “Setup” Tab.........................................................................................................................................9
Figure 4.2 “Setup” Tab Example with Module 1 Selected .................................................................................10
Figure 4.3 “ADC and Offset Calibration” Screen ...............................................................................................11
Figure 4.4 Example Graph and Max/Min Values for Module 1..........................................................................12
Figure 4.5 “Start Calibration Check” ..................................................................................................................13
Figure 4.6 Check Boxes for Error Estimation.....................................................................................................13
Figure 4.7 Estimated Error Display....................................................................................................................13
Figure 4.8 “Read Angle” Screen ........................................................................................................................14
Figure 4.9 “Angle Calibration” Screen................................................................................................................15
Figure 4.10 Setting the Angle Range with the “Angle Calibration” Tab...............................................................16
Figure 4.11 Clamping Values...............................................................................................................................16
Figure 4.12 Angle Calibration Check Example...................................................................................................17
Figure 4.13 Error Condition Indication Example..................................................................................................17
Figure 4.14 “Slope Direction” Menu and “Write settings” Button on the “Setup” Tab..........................................17
Figure 4.15 “Digital Out” Screen ..........................................................................................................................18
Figure 4.16 “Analog Out” Screen Example ...........................................................................................................19
Figure 4.17 “Analog Out” Screen Example with Two Modules............................................................................20
Figure 4.18 “Memory” Screen..............................................................................................................................21
Figure 4.19 Saving or Loading Files for EEPROM Settings ................................................................................22
Figure 4.20 Location of Default File.....................................................................................................................22
Figure 4.21 Diagnostics Mode Flag.....................................................................................................................22

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1 Introduction
The ZSSC5101 Evaluation Kit enables evaluation of the ZSSC5101 xMR Sensor Signal Conditioner IC, which is
designed for interfacing with magnetoresistive position sensors. The ZSSC5101 AMR Demo Board included in the
kit provides a typical anisotropic magnetoresistive (AMR) position sensor for demonstrating typical calibration
procedures and reading example measurement results. Alternatively, the user module can be connected in place
of the AMR Demo Board (e.g., with a tunnel magnetoresistive (TMR) or giant magnetoresistive (GMR) sensor).
This document describes the kit including hardware and software setup and basic operations.
Note: Reading the ZSSC5101 Data Sheet before using the kit is strongly recommended.
1.1. Kit Contents
The ZSSC5101 Evaluation Kit (ZSSC5101 EVK) includes the following:
•SSC Communication Board V4.1 (SSC CB)
•ZSSC5101 Adaptor Board V1.1
•ZSSC5101 AMR Demo Board V1.0
•3 samples of the ZSSC5101 (SSOP-14)
•Standard USB cable for connecting the kit to a PC
Note: The ZSSC5101 Evaluation Software is downloaded from the IDT product web page (see section 1.2).
Figure 1.1 ZSSC5101 Evaluation Kit Boards
SSC Communication Board
Board Version 4.1 with
Firmware Version 4.10
ZSSC5101
AMR Demo
Board
ZSSC5101
Adapter
Board

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1.2. Downloading the Evaluation Kit Software
To ensure use of the latest version ZSSC5101 Evaluation Software, the software must be downloaded as a zip
file from www.IDT.com/ZSSC5101KIT. Alternately, the software can be requested through the IDT application
support team.
Requirements for user’s computer:
•Windows®-based operating system
•An available USB port
•Administrative rights for installing the software and if needed, installing the driver for the SSC
Communication Board (SSC CB)
A free customer login account is required to access the software on the product page.
Save the downloaded zip file to a user-selected location on the computer and extract the contents of the zip file.
Contents of the zip file:
•Documentation directory, which provides useful supporting documents
•UsbDriver directory, which provides the required hardware driver for the SSC Communication Board (see
section 3.1 for further details)
•ZSSC5101_GUI directory, which contains the graphical user interface (GUI) and its associated files (see
section 3.2 for further details)

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2 Hardware Setup
Before proceeding with the software setup, assemble the ZSSC5101 Evaluation Kit as shown in Figure 2.1 and
connect a USB cable from the connector on the SSC CB to an available USB port on the user’s computer.
Note that up to two ZSSC5101 AMR Demo Boards can be connected at the same time (via the Module 1 and
Module 2 connectors on the ZSSC5101 Adaptor Board). Additional AMR Demo Boards are sold separately.
Important: Before unplugging any ZSSC5101 module during operation, always click the “Power OFF” button in the
software first (see section 4).
Figure 2.1 Default Hardware Set-up

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3 Software Setup
3.1. IDT Communication Board Driver Installation
The SSC Communication Board converts the USB bus protocol to a serial data interface for communication
between the user’s computer and the ZSSC5101. A special driver (FTDI) must be installed.
Before continuing, ensure that the ZSSC5101 Evaluation Kit is connected via a USB cable to the user’s computer
as described in section 2.
3.1.1. Compatibility Check
The following procedures are used to determine if the correct driver is already installed on the computer by
checking the Device Manager in the Windows®Control panel.
1. Navigate as needed to the computer’s Control Panel → System and Security → Device Manager.
2. Scroll down the device list to the “Universal Serial Bus controllers” section and check for an entry titled
“USB Serial Converter.” If found, right click on it and select “Properties” from the resulting drop-down
menu.
3. If the “Manufacturer” is shown as “FTDI” as shown in the example in Figure 3.1, then the required driver is
already installed. In this case, skip the following steps and continue at section 3.2.
Figure 3.1 Example of Properties for a USB Serial Converter under the Device Manager
4. If the “Manufacturer” is not shown as “FTDI” or if “USB Serial Converter” does not appear in the Device
Manager list, the FTDI driver must be manually installed on the SSC Communication Board
microprocessor. If there is no driver installed for the SSC Communication Board, the device is likely to be
listed under “Other devices” as “FT232R USB UART” in the Device Manager list as shown in Figure 3.2.
Right click on the device and select “Update Driver Software.”

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Figure 3.2 Updating the Driver for the Communication Board (FT232R USB UART under Device Manager)
5. Next, select the option to manually browse for a driver:
6. Navigate to the UsbDriver subdirectory under the user-selected directory for the downloaded ZSSC5101
Evaluation Software. Select the CDM…..-Certified subdirectory as shown in Figure 3.3. Click the “OK”
button. Windows® automatically installs the FTDI driver software.
Figure 3.3 Location of the FTDI Driver in the ZSSC5101 Evaluation Software Directory

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7. When the driver installation is complete, verify that message shown in Figure 3.4 is displayed and that the
SSC Communication Board is now listed as “USB Serial Converter” under “Universal Serial Bus
Controllers” in the Device Manager list as shown in Figure 3.1. If properly installed, proceed with the
steps in section 3.2 to activate the ZSSC5101 Evaluation Software.
Figure 3.4 Confirmation Message after Installing FTDI Driver
3.2. Starting the ZSSC5101 Evaluation Software
After the FTDI driver is installed on the SSC Communication Board, the ZSSC5101 Evaluation Software is ready
to use without any additional installation. The software provides a graphical user interface (GUI) for communi-
cation and programming of the ZSSC5101. To start the GUI, go to the ZSSC5101_GUI subdirectory and click on
the ZSSC5101_GUI.exe file to run the software.
Figure 3.5 Location of the ZSSC5101 Evaluation Software
The GUI will open on the default screen shown in Figure 4.1. Typically the SSC Communication Board is detected
automatically. If not, click the “Find Comm” button as needed to connect.

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4 Using the ZSSC5101 Evaluation Software
Important: Before unplugging any ZSSC5101 module during operation, always click the “Power OFF” button in
the software first (see Figure 4.1).
4.1. Software Revision
This kit description applies to ZSSC5101 Evaluation Software revision 1.2 or higher. The software revision
number is given under “About” on the top main menu (see Figure 4.1).
4.2. “Setup” Tab
The initial screen for the ZSSC5101 Evaluation Software (i.e., the GUI) is the “Setup” tab as shown in Figure 4.1.
Figure 4.1 “Setup” Tab

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Above the tabs under “Chip select,” select “Module 1” (default set-up) or “Module 2” depending on which module
is connected. Under “Angle range,” select whether the ZSSC5101 chip is interfacing with an AMR or GMR/TMR
sensor signal. For the ZSSC5101 AMR Demo Board V1.0, which is included in the kit, choose “180° (AMR).”
Next, click the “Connect” button (see Figure 4.1). The gray “Connection status” button changes to “Connected”
and turns green. This automatically turns the module on (equivalent to clicking the “Power On” button). The
section for the connected module is highlighted, and the section for the non-connected module is gray to indicate
that it is inactive. An example of the resulting screen for a connection to Module 1 is shown in Figure 4.2.
If two modules are connected, the user can switch between modules without cycling power by simply clicking
“Module 1” or “Module 2.”
The “Get Status” button can be used to check the control register and connections. Any available warnings will be
displayed in the log window. The log information can be saved in a text file by clicking the “Save Log” button.
Figure 4.2 “Setup” Tab Example with Module 1 Selected

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4.3. “ADC and Offset Calibration” Tab
The “ADC and Offset calibration” tab is used to calibrate the offset of the sensor and perform an estimation of the
resulting error.
Figure 4.3 “ADC and Offset Calibration” Screen

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4.3.1. Offset Calibration
AMR sensors typically exhibit a temperature dependent offset. An offset calibration can greatly improve the
accuracy of the sensor system by eliminating these errors. In addition, the offset calibration procedure also
improves non-linearity caused by a misaligned (non-centered) magnet.
To start an offset calibration, ensure that a magnet is placed over the sensor and click the “START
CALIBRATION” button, which is shown in Figure 4.3. The button label changes to “Calibrate Offset.”
Rotate the magnet slowly until the values for SIN Min/Max and COS Min/Max that are displayed in the module’s
section stop changing (see Figure 4.4). Verify that the Min/Max values are in a range of approximately +/- 11000
or wider. Then click the “CALIBRATE OFFSET” button.
Figure 4.4 Example Graph and Max/Min Values for Module 1
The software calculates the offset parameters and stores them in place of the default factory settings in the
ZSSC5101’s EEPROM. The ZSSC5101 is now calibrated for the offset of the AMR position sensor at room
temperature. The same procedure can be repeated under high temperature conditions by selecting the “High
temperature” checkbox. This ensures accurate output values in a range between room temperature and the high
temperature; e.g., the temperature that is applied to the ZSSC5101 during high temperature calibration: 150°C.
After the programming is finished, the button label changes back to “START CALIBRATION.”
Note that an offset calibration can be repeated several times. Each new setting will overwrite the old setting in the
EEPROM. A misalignment of the magnet also leads to an offset error. Therefore, for best performance, it is
recommended that an offset calibration be repeated if the magnet is changed for any new assembly of the sensor
and the magnet.

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4.3.2. Estimating the Resulting Angle Error
The ZSSC51201 Evaluation Kit provides a unique algorithm for
estimating the resulting angle error without the need for a
precision angle reference. It is only necessary to rotate the
magnet after calibration and click the “Start calibration check”
button, which is shown in Figure 4.5.
Important: Rotate the magnet in one direction only:
either clockwise or counter-clockwise, not both directions.
Note that as the magnet is rotated, the eight check boxes above
the button are filled in an ascending or descending sequence,
depending on the rotation direction.
Rotating the magnet too fast can cause check boxes to be skipped as illustrated on the left in Figure 4.6. In this
case, continue rotating in the same direction until all check boxes are filled. Alternately, click the “Finish check”
button, click “Start calibration check” twice, and start over. Do not rotate back and forth as this will invalidate the
calculation results.
Figure 4.6 Check Boxes for Error Estimation
Example of Missed Check Boxes Completed Calibration Check
After all eight check boxes are filled, an algorithm calculates the
estimated angle error and displays it in the bottom left corner.
Note that the displayed error is shown as the peak angle error
over one full phase (180° mechanical); e.g., in this case ±0.03°.
Note: A successful offset calibration should result in a
remaining angle error of less than ±0.10°.
Note that there are also errors shown in the calibration window as shown on the right in Figure 4.6. These are the
peak-to-peak angle errors, separated by the error resulting from remaining offset (Off Err, in this example .0.0700°
pk-pk) and the error caused by magnitude mismatch (Mag Err, in this example 0.0408° pk-pk).
4.4. “Read Angle” Tab
The “Read Angle” tab is used to display the actual angle measurement in degrees, together with the magnitude
and angle value output of the CORDIC algorithm (see Figure 4.8.)
Figure 4.5 “Start Calibration Check”
Figure 4.7 Estimated Error Display

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The polar plot on the right side is also a good indicator for accuracy. A perfect circle indicates a precise sensor
calibration. A shift of the circle in any direction indicates an offset error, which can be eliminated through
calibration (see section 4.3.1).
In order to display a circle (rather than a half circle) select “360°” under “Angle range.” In the case of an AMR
sensor, one circle would reflect 180° mechanical.
Figure 4.8 “Read Angle” Screen
4.5. “Angle Calibration” Tab
The “Angle Calibration” tab enables setting the ZSSC5101 to match the mechanical angle limits of the application
to which it is connected (e.g., a pedal).

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To utilize the full angle range (e.g., 180° for AMR sensors), click the “Reset to default” button. This programs a
linear ramp over the maximum angle range. To perform an angle calibration for both modules sequentially, check
the “Module 1+2 angle calibration” box. The software automatically switches between module 1 and module 2,
which is indicated via the radio buttons under “Chip select.”
Figure 4.9 “Angle Calibration” Screen
4.5.1. Setting the Angle Range Limits and Switch Angle
To match the sensor measurement range with a mechanical range (e.g., the full release and full push positions of
a pedal), use the following procedure to enter the two end positions for the output voltage, which will be stored in
EEPROM. The angle range between these mechanical stops will be a linear ramp.

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1. Click the “Start” button on the “Angle Calibration” tab and wait until the “Set Start” button becomes active.
2. Move the magnet to the start position (note that this is the maximum clockwise position when looking at
the sensor from the top). Click “Set Start.” This stores the start position, and then the “Set Stop” button
becomes active.
3. Rotate the magnet to the stop position (when looking at the sensor from the top, rotate the magnet
counterclockwise to the stop position) and click “Set Stop.” This stores the stop position.
Figure 4.10 Setting the Angle Range with the “Angle Calibration” Tab
4. Optional: The switch angle, which is the angular position where the analog output returns from Vout,max
to Vout, min, can be manually entered for each module in the “Switch angle” entry fields. Then click
“Manual switch” to confirm the entry, which stores the value in EEPROM. If no value is entered, it will be
calculated automatically.
5. Optional: Enter the minimum and maximum clamping values at the
two mechanical stop positions as percentages of VDD in the entry
fields adjacent to the graph in the upper left section of the tab.
Alternatively, the default values that are already displayed can be
used. See Figure 4.11, which illustrates the example default values
Vmin = 5% VDD and Vmax = 95% VDD.
6. To complete the angle calibration, click the large button at the
bottom of the tab, which has the label “Input the clamp values and
press the button to finish the calibration.” (See Figure 4.10.) When
the angle programming is completed, this button becomes grey
and its label changes to “Done.”
Figure 4.11 Clamping Values

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4.5.2. Checking the Calibrated Angle
Strong Recommendation: Verify the actual angle and output value by
clicking the “Check” button under “Check output” on the “Angle
Calibration” tab (see Figure 4.9). The two display fields under “Check
output” will show the current readings for the mechanical angle and the
corresponding output value as a % of VDD (see Figure 4.12).
If necessary, repeat the procedures in section 4.5.1 as needed to meet
application requirements.
4.5.3. Indication of Possible Errors during Programming
Improper programming (e.g., start and stop angle are unintentionally
programmed at the same position) is indicated by an error condition.
Error conditions are indicated on the “Angle Calibration” tab by the
output being displayed as an unchanging fixed output value below the
lower clamping level for all magnet positions (e.g., output voltage =
1.9%VDD over all angles as shown in Figure 4.13).
In addition, on the “Memory” tab (see section 4.9), the control register
flag for “in_diag_condition” is checked if errors have been detected
(see example in Figure 4.13).
In this case, repeat the programming with valid entries.
4.6. Selecting the Slope of the Angle Calibration and Writing the Settings
Note: The slope (rising or falling) of the angle calibration cannot be programmed until after programming.
After completing the steps in sections 4.3.1, 4.5.1, and 4.5.2, go to the “Setup” tab (see Figure 4.1) and select the
slope setting using the “Slope direction” drop down menu as shown in Figure 4.14. Next, if all settings are final,
click the “Write settings” button.
Figure 4.14 “Slope Direction” Menu and “Write settings” Button on the “Setup” Tab
Figure 4.12 Angle Calibration
Check Example
Figure 4.13 Error Condition
Indication Example
“Angle Calibration” Tab:
“Memory” Tab:

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4.7. “Digital Out” Tab
The “Digital Out” tab displays an XY plot for which the X-axis represents the angle and the Y-axis represents the
output value (the ramp). To generate a graph, click the “Read” button and slowly rotate the magnet over the full
angle range. The label on the button changes to “Stop.”
Note that this display is cleared and refreshed automatically while in “Read” mode. To freeze the screen, click the
“Stop” button.
Values shown in the display fields in the “Min/Max Values” section are determined over each period: 180° for
AMR or 360° for GMR/TMR sensors.
Figure 4.15 “Digital Out” Screen

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4.8. “Analog Out” Tab
The “Analog Out” tab shows the actual analog output voltage of the sensor (the voltage at the ZSSC5101’s VOUT
pin). The X-axis of the plot is the time, scrolling from right to left, and the Y-axis is the analog output voltage of the
sensor that is measured by an ADC in the microcontroller of the SSC Communication Board. To initiate a plot,
click the “Read” button. The label on the button changes to “Stop.”
The values in the “Min/Max values” section are continuously calculated for the period that reading is active. The
“Output difference” and “Output sum” values are calculated point-by-point and therefore updated for each reading.
The outputs of both Module 1 and Module 2 sensors can be displayed simultaneously if the “Enabled” radio
button under “Dual Devices” is selected. If selected, the ADC of the SSC Communication Board measures each
sensor sequentially and displays the results on the scrolling screen. The example in Figure 4.17 shows the analog
outputs of two modules connected to the kit. Output 2 (falling slope) is opposite to output 1 (rising slope).
Figure 4.16 “Analog Out” Screen Example

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Figure 4.17 “Analog Out” Screen Example with Two Modules