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Figure 1. KITFS85SKTEVM

Important Notice

NXP provides the enclosed product(s) under the following conditions:
This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a
sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This evaluation board
may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via
off-the-shelf cables. This evaluation board is not a Reference Design and is not intended to represent a final design recommendation for
any particular application. Final device in an application will be heavily dependent on proper printed circuit board layout and heat sinking
design as well as attention to supply filtering, transient suppression, and I/O signal quality.
The goods provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations,
including product safety measures typically found in the end product incorporating the goods. Due to the open construction of the product,
it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks
associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize
inherent or procedural hazards. For any safety concerns, contact NXP sales and technical support services.
Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will
be replaced by a new kit.
NXP reserves the right to make changes without further notice to any products herein. NXP makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does NXP assume any liability arising out of the
application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or
incidental damages. Typical parameters can and do vary in different applications and actual performance may vary over time. All operating
parameters, including Typical, must be validated for each customer application by customer's technical experts.
NXP does not convey any license under its patent rights nor the rights of others. NXP products are not designed, intended, or authorized
for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or
for any other application in which the failure of the NXP product could create a situation where personal injury or death may occur.
Should the Buyer purchase or use NXP products for any such unintended or unauthorized application, the Buyer shall indemnify and hold
NXP and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and
reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or
unauthorized use, even if such claim alleges NXP was negligent regarding the design or manufacture of the part.
UM11183
KITFS85SKTEVM evaluation board
Rev. 2.0 — 20 February 2019
User guide

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Summary of Contents for NXP Semiconductors KITFS85SKTEVM

  • Page 1: Important Notice

    UM11183 KITFS85SKTEVM evaluation board Rev. 2.0 — 20 February 2019 User guide Figure 1. KITFS85SKTEVM Important Notice NXP provides the enclosed product(s) under the following conditions: This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals.
  • Page 2: Introduction

    The NXP community is at http://community.nxp.com. Getting ready Working with the KITFS85SKTEVM requires the kit contents, additional hardware and a Windows PC workstation with installed software. 3.1 Kit contents • Assembled and tested evaluation board in an anti-static bag •...
  • Page 3: Additional Hardware

    Getting to know the hardware The KITFS85SKTEVM provides flexibility to play with all the features of the device and make measurements on the main part of the application. The KL25Z MCU installed on the board, combined with the FlexGUI software allows access to the registers in read and write mode.
  • Page 4: Kitfs85Sktevm Features

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board generates the OTP programming voltage (8.0 V) without any need for an external power supply. 4.1.1 KITFS85SKTEVM features • VBAT power supply connectors (Jack and Phoenix) • VPRE output capability up to 1.0 A (socket limit) •...
  • Page 5: Vpre Compensation Network

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board R181 68.1 kΩ VPRE R191 22.1 kΩ VPRE_MON1 VMON_08V R180 HDR 1X3 27.4 kΩ BUCK2 R190 22.1 kΩ BUCK2_MON2 VMON_08V R178 HDR 1X3 68.1 kΩ BUCK3 R189 22.1 kΩ BUCK3_MON3 VMON_08V R182 HDR 1X3 68.1 kΩ...
  • Page 6: Buck1 And Buck2 Multiphase Configuration

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Table 1. Compensation network Components VPRE 450 kHz VPRE 2.2 MHz C18/C19 6.8 nF 1.5 nF C14/C15 150 pF 22 pF R6/R10 3.57 kΩ 16.9 kΩ LPRE 4.7 µH or 6.8 µH 1.5 µH, 2.2 µH or 4.7 µH 4.1.4 BUCK1 and BUCK2 multiphase configuration...
  • Page 7: Vddi2C

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board WAKE1 MOSI VDDI2C MISO I2C_SDA SCLK I2C_SCL VDDIO_EXT VSUP aaa-032822 Figure 6. J30 SPI connection 4.1.6 VDDI2C As an option, an external LDO is provided to feed VDDI2C. This LDO can also be used to feed VDDIO, which is the default implementation.
  • Page 8: Device Otp User Configuration

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 4.2 Device OTP user configuration It is recommended to learn about OTP before operating with the device. The device has a high level of flexibility due to parameter configuration available in the OTP. This impacts the functionality of the device.
  • Page 9: Kit Featured Components

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board > V SUP_UVH VSUP1/2 > WAKE12 WAKE1 SPI/I2C SPI/I2C OTP pgm SPI/I2C REGx PWR UP aaa-031966 Figure 10. Debug mode entry Figure 11 shows the hardware kit implementation. OTP level DBG_BAT (DBG = 8 V)
  • Page 10 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 1. V Jack connector 2. V three position switch 3. V Phoenix connector 4. LDO1/LDO2 power supplies 5. VPRE power supply 6. BUCK1/BUCK2 power supply 7. USB connector (for FlexGUI control) 8. Debug connectivity 9.
  • Page 11: Fs8500/Fs8400: Fail-Safe System Basis Chip With Multiple Smps And Ldo

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Number Description Debug connectivity. Access to: • VSUP, GND • FOUT/FIN • PGOOD/RST/FS0b • FCCUx • Wake2 • PSYNC, ERRMON, AMUX • VMONx Programming • SPI bus • I2C bus • Debug pin • VPRE, VSUP, GND...
  • Page 12: Indicators

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board • Based on part number: low voltage integrated synchronous BUCK2 converter. Configurable output voltage and current capability up to 3.6 A peak. Multi-phase capability with BUCK1 to extend the current capability up to 7.2 A peak on a single rail.
  • Page 13: Connectors

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Label Name Color Description BUCK1 Green BUCK1 On BUCK2 Green BUCK2 On BUCK3 Green BUCK3 On VBOOST Green VBOOST On Green DBG > 8.0 V Blue DBG pin voltage > 8.0 V (OTP programming)
  • Page 14: Output Power Supply Connectors

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 4.3.3.2 Output power supply connectors Table 5. BUCK1/BUCK2 connector (J14) Schematic label Signal name Description J14-1 BUCK2 BUCK2 power supply output J14-2 BUCK1 BUCK1 power supply output J14-3 Ground Table 6. VBOOST/BUCK3 connector (J16) Schematic label...
  • Page 15: Program Connector (J30)

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Schematic label Signal name Description J29-14 PSYNC Power synchronization J29-15 VDDIO VDDIO used by FS85 J29-16 WAKE2_IN Wake2 input J29-17 FCCU1 Fault collector control unit 1 J29-18 VSUP VSUP power supply J29-19 FCCU2 Fault collector control unit 2...
  • Page 16 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 15. Evaluation board test points Table 11. Evaluation board test point descriptions Test point name Signal name Description Ground Ground LDO2 LDO2 regulator output LDO1 LDO1 regulator output VPRE VPRE DC/DC regulator output Ground VBOOST...
  • Page 17: Jumpers

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 4.3.5 Jumpers Figure 16. Evaluation board jumper locations Table 12. Evaluation board jumper descriptions Name Function Jumper/pin function number 1−2 Shunt switch SW1 for current > 5.0 A shunt 3−4 Shunt switch SW1 for current > 5.0 A 1−2...
  • Page 18: Switches

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Name Function Jumper/pin function number 1−2 VMON2 tied to 0.8 V VMON2 2−3 VMON2 tied to BUCK2 1−2 VMON3 tied to 0.8 V VMON3 2−3 VMON3 tied to BUCK3 1−2 Reset LED RSTb Enabled when jumper is plugged 1−2...
  • Page 19: Schematic, Board Layout And Bill Of Materials

    VBAT On VBAT from J10 4.4 Schematic, board layout and bill of materials The schematic, board layout and bill of materials for the KITFS85SKTEVM evaluation board are available at http://www.nxp.com/KITFS85SKTEVM. Installing and configuring software and tools This development kit uses FlexGUI software. FlexGUI software is based on Java JRE.
  • Page 20 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 4. In the SECON FLEX GUI SLAVE Properties window, click Update Driver. UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved. User guide Rev. 2.0 — 20 February 2019...
  • Page 21 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 5. in the Update Software Driver window, select Browse my computer for driver software. UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved. User guide Rev.
  • Page 22 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 6. Select Let me pick from a list of device drivers on my computer, and then click Next. 7. Select Ports (COM & LPT) from the list, and then click Next. 8. Click Have Disk.
  • Page 23 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 9. Click Browse. 10.In the Locate File window, locate and select fsl_ucwxp, and then click Open. UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
  • Page 24 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 11.In the Install from Disk window, click OK. 12.If prompted, in the Windows Security window, click Select this driver software anyway. UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
  • Page 25 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 13.Close the window when the installation is complete. 14.In the Virtual Com Port Properties window, verify that the device is working properly, and then click Close. UM11183 All information provided in this document is subject to legal disclaimers.
  • Page 26 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board The Virtual Com Port appears in the Device Manager window. UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved. User guide Rev. 2.0 — 20 February 2019...
  • Page 27: Installing Flexgui Software Package

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 5.3 Installing FlexGUI software package The FlexGUI software installation requires only extracting the zip file in a desired location. 1. If necessary, install the Java JRE and Windows 7 FlexGUI driver. 2. Download the latest FlexGUI (32-bit or 64-bit) version, available at http:// www.nxp.com/KITFS85SKTEVM.
  • Page 28: Configuring The Hardware For Startup

    (WAKE1) open (OTP programming off) 3. Connect the Windows PC USB port to the KITFS85SKTEVM development board using the provided USB 2.0 cable. Set the DC power supply to 12 V and current limit to 1.0 A. With power turned off, attach the DC power supply positive and negative output to KITFS85SKTEVM V Phoenix connector (J1).
  • Page 29: Using The Kitfs85Sktevm Evaluation Board

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Using the KITFS85SKTEVM evaluation board This section summarizes the overall setup. Detailed description is provided in the following sections. Before starting the process, choose the mode you want to run the device . • In Normal mode, the configuration comes from OTP fuses.
  • Page 30 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 20. OTP_conf_failsafe_reg spreadsheet example 3. See the OTP_conf_summary sheet to review the complete configuration (main and fail-safe) Figure 21. OTP_conf_summary example 4. Generate the script in OTP_conf_file_generation sheet Once the configuration is ready, the user can generate the script file. Go to OTP_conf_file_generation, enter the path in the File repository and then click Write_OTP_File_GUI.
  • Page 31: Working In Otp Emulation Mode

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 22. OTP script generation 7.2 Working in OTP emulation mode At startup, the device always uses the content from the mirror register. This content can come from OTP fuse or from configuration written directly in the mirror register. OTP emulation means that the user can emulate the OTP writing in the mirror register.
  • Page 32: Example Script: Closing Initialization Phase, Disabling Fccu Monitoring And Releasing Fs0B

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 7.2.1 Example script: Closing initialization phase, disabling FCCU monitoring and releasing FS0b The following script can be used to: • Disable the WD (simple WD configuration is used here). • Disable the FCCU monitoring.
  • Page 33: Using Flexgui

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Using FlexGUI To follow the steps in this section, make sure that the board is connected using the appropriate hardware configuration (see Section 7.2 "Working in OTP emulation mode"). Note: It is recommended to use the latest version of FlexGUI.
  • Page 34 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 24. Main panel Figure 24 shows the mode selection. At first launch, the FlexGUI starts in User mode. The user can then decide to switch to Test mode using the Switch mode drop-down list followed by clicking Apply.
  • Page 35: Working With The Script Editor

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 25. Disabling device mode polling To move from one mode to the other, select the mode with switch mode drop-down button and click Apply to validate. At this time, the current mode will be updated at the condition that Poll button is enabled.
  • Page 36: Script Text Editor

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.3.1 Script text editor Using Script editor, you can execute any command either directly or from a file. It is also possible to save and modify a script. Using the brush symbol, it is possible to clean windows if needed.
  • Page 37 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 27. Build a command The value 0x0800 is sent to the register M_REG_CTRL1 (BUCK2DIS). The user can then send it to the device by clicking the arrow (see Figure 28). Figure 28. Send script Figure 29. Correct format Figure 30. Wrong format (“//”...
  • Page 38: Script Sequence Files

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.3.2 Script sequence files The Script editor allows the user to save script sequence files. A script sequence file is text file that contains a set of commands sent to the device in the order they are written, as shown in the following example.
  • Page 39: Clocks

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 31. Register map • Register map: allows access to functional register, safety register and write init register which are accessible only during initialization phase • Read: allows you to read any register either individually or by bank •...
  • Page 40: Regulators

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board • Read current OTP configuration (write operation is not possible). To display the accurate data, the device needs to operate in Test mode. SPI/I2C: • Configure the device to work with FIN input • Select the signal to apply on FOUT pin •...
  • Page 41: Interrupt Flags

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 34. Measurements 8.4.5 Interrupt flags This tab allows you to set or clear flags. It is also possible to mask the interruption. Figure 35. Interrupt flags UM11183 All information provided in this document is subject to legal disclaimers.
  • Page 42: Init Safety

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.4.6 INIT safety This tab allows you to manage all registers that can be configured to close the initialization phase. Note that the initialization phase is closed by the first good watchdog refresh before 256 ms timeout.
  • Page 43 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Figure 37. Diag safety The FS_Release_FS0b command calculates and sends the right secure16-bit word to release FS0b. A simplified way to release FS0b after power up is to, first, select the right type of watchdog configured in the OTP, then, hit FS0b Release script button. This sends the right sequence to close the initialization sequence, sets the error counter back to 0, then releases FS0b.
  • Page 44: Otp Programming

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.4.8 OTP programming This tab allows you to burn the OTP using a script generated by the excel file OTP configuration (see Section 7.1 "Generating the OTP configuration file "). Figure 38. OTP burning To set up the hardware before OTP burning, see Section 7.3 "Programming the device...
  • Page 45: Testmode:sequencer

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.4.9 TestMode:Sequencer The sequencer allows you to display the slot configuration for the device. To be able to access this tab, the device has to be in Test mode. The configuration is read from mirror register.
  • Page 46: Testmode:mirrors_Main

    UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board 8.4.10 TestMode:Mirrors_Main and TestMode:Mirrors_Failsafe The TestModeMirrors_Main and TestModeMirrors_FailSafe tabs allow access to the OTP main mirrors and fail-safe registers. These tabs are available in Test mode. Figure 41. TestMode: Mirrors_Main UM11183 All information provided in this document is subject to legal disclaimers.
  • Page 47: References

    This can be useful, for example, to modify few parameters from OTP fuse to start up the board. References KITFS85SKTEVM — detailed information on this board, including documentation, downloads, and software and tools http://www.nxp.com/KITFS85SKTEVM FS8500 — product information on FS8500, Safety system basis chip for S32 microcontrollers, fit for ASIL D http://www.nxp.com/FS8500...
  • Page 48: Legal Information

    NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or 11.2 Disclaimers applications and therefore such inclusion and/or use is at the customer's own risk.
  • Page 49 UM11183 NXP Semiconductors KITFS85SKTEVM evaluation board Tables Tab. 1. Compensation network ........6 Tab. 10. Program connector (J30) ........ 15 Tab. 2. Evaluation board board component Tab. 11. Evaluation board test point descriptions ..16 descriptions ............. 10 Tab. 12. Evaluation board jumper descriptions ..... 17 Tab.
  • Page 50: Table Of Contents

    Getting to know the hardware ......3 8.4.4 Measurements ..........40 Kit overview ............3 8.4.5 Interrupt flags ...........41 4.1.1 KITFS85SKTEVM features ........ 4 8.4.6 INIT safety ............42 4.1.2 VMON board configuration ........ 4 8.4.7 Diag safety ............42 4.1.3 VPRE compensation network ......

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