NXP Semiconductors KITFS26AEEVM Manuale utente

UM11503

KITFS26AEEVM evaluation board

Rev. 1 — 29 January 2021 User manual

Figure 1. KITFS26AEEVM

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.

Important Notice

NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

1 Introduction

This document is the user guide for the KITFS26AEEVM evaluation board.

This document is intended for the engineers involved in the evaluation, design,

implementation, and validation of FS2600 Fail-safe system basis chip with multiple

SMPS and LDO.

The scope of this document is to provide the user with information to evaluate the

FS2600 Fail-safe system basis chip with multiple SMPS and LDO. This document covers

connecting the hardware, installing the software and tools, configuring the environment

and using the kit.

It is delivered with empty OTP content in order to leave the opportunity to the user to

burn the OTP configuration. The board contains a superset device (PFS2630AMDA0AD),

allowing tests on all the FS26 derivatives.

2 Finding kit resources and information on the NXP web site

NXP Semiconductors provides online resources for this evaluation board and its

supported device(s) on http://www.nxp.com.

The information page for KITFS26AEEVM evaluation board is at http://www.nxp.com/

KITFS26AEEVM. The information page provides overview information, documentation,

software and tools, parametrics, ordering information and a Getting Started tab. The

Getting Started tab provides quick-reference information applicable to using the

KITFS26AEEVM evaluation board, including the downloadable assets referenced in this

document.

2.1 Collaborate in the NXP community

The NXP community is for sharing ideas and tips, ask and answer technical questions,

and receive input on just about any embedded design topic.

The NXP community is at http://community.nxp.com.

3 Getting ready

Working with the KITFS26AEEVM requires the kit contents, additional hardware and a

Windows PC workstation with installed software.

3.1 Kit contents

•Assembled and tested evaluation board and preprogrammed FRDM-KL25Z

microcontroller board in an anti-static bag

•3.0 ft USB-STD A to USB-B-mini cable

•Two connectors, terminal block plug, 2 pos., str. 3.81 mm

•Three connectors, terminal block plug, 3 pos., str. 3.81 mm

•Jumpers mounted on board

3.2 Additional hardware

In addition to the kit contents, the following hardware is necessary or beneficial when

working with this kit.

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

•Power supply with a range of 8.0 V to 40 V and a current limit set initially to 1.0 A

3.3 Windows PC workstation

This evaluation board requires a Windows PC workstation. Meeting these minimum

specifications should produce great results when working with this evaluation board.

•USB-enabled computer with Windows 7 or Windows 10

3.4 Software

Installing software is necessary to work with this evaluation board.

•NXP GUI installation package

4 Getting to know the hardware

The KITFS26AEEVM provides flexibility to play with all the features of the device and

make measurements on the main part of the application. The FRDM-KL25Z connected

to the board, combined with the FS26 NXP GUI software allows full configuration and

control of the FS26 SBC.

4.1 Kit overview

The FS26 family can be evaluated with this board as it is populated with a superset part.

The FS26xx part soldered on the board can be fused one time or it is possible to test as

many configurations as needed in Emulation mode.

This board was designed to sustain up to 2.0 A total on VPRE. Layout is done using six-

layer PCB stack up. Set initial current limitation of 1 A.

4.1.1 KITFS26AEEVM features

•VBAT power supply connectors (Jack and Phoenix)

•VPRE output capability up to 2.0 A

•VBOOST in independent mode or in front-end topology to support battery cranking

profiles

•VCORE up to 1.5 A peak

•LDO1 and LDO2 from 3.3 V or 5.0 V, up to 400 mA

•VTRK1 and VTRK2, from 3.3 V or 5.0 V, up to 125 mA

•VREF 1 % accuracy regulator for external ADC reference

•FS0B, FS1b external safety pins

•USB to SPI protocol for easy connection to software GUI

•LEDs that indicate signal or regulator status

•Manual or Automated OTP fuse programming

•Advance system monitoring via AMUX or external ADC

•Analog variable resistor to test external VMON

4.2 Kit featured components

Figure 2 identifies important components on the board.

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

1. VBAT Phoenix connector

2. VBAT3 position switch

3. VBAT Jack connector

4. VDDIO selection

5. Regulators outputs

6. WAKE1 and WAKE2 inputs switches

7. FS26 SBC

8. KL25Z Freedom headers (bottom)

9. VDEBUG pin source selection (switch or MCU)

10. VDEBUG pin voltage level switches

11. VDDIO USB voltage level selection

12. VMONEXT variable resistor

13. Signal connector

14. Program connector

15. Regulators output LED indicators

16. Program burning voltage LED indicator

17. Safety output LED indicators

Figure 2. Evaluation board featured component locations

4.2.1 FS26: Safety system basis chip with low power and fit for ASIL D

The FS26 is a family of automotive Safety SBC devices with multiple power supplies,

designed to support entry and mid-range safety microcontrollers like the S32K3 series

while maintaining flexibility to fit other microcontrollers targeting automotive electrification

such as power train, chassis, safety and low-end gateway applications.

This family of devices is composed of several versions, pin to pin and software

compatible, to support a wide range of applications, offering choice in number of output

rails, output voltage setting, operating frequency, power up sequencing, and integrated

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

system level features to address multiple applications with Automotive Safety Integrity

Levels (ASIL) B or D.

It features multiple switch mode regulators as well as LDO voltage regulators to supply

the microcontroller, sensors, peripheral ICs, and communication interface. It offers a

high precision voltage reference available to the system as well as reference voltage for

two independent voltage tracking regulators as well as various functionalities for system

control and diagnostics such as Analog multiplexer, GPIOS and selectable wake up

events from I/O, long duration timer or SPI communication.

The FS26 is developed in compliance with the ISO 26262 standard, and it includes

enhanced safety features, with multiple fail-safe outputs, becoming a full part of a safety-

oriented system partitioning, covering both ASIL B and ASIL D safety integrity level, with

the latest on-demand latent fault monitoring.

Operating range

•40 V DC maximum input voltage

•Handles severe cranking operation (3.2 V battery) thanks to its BOOST controller

•Supports operating voltage range down to battery 6.0 V without BOOST

•Low-power Off mode with very low sleep current (50 µA typ)

•Low-power Standby mode, VPRE active

•LDO1 or LDO2 active selectable via OTP configuration (50 µA typ)

4.2.2 VBAT connectors

There are two ways of supplying the board: either by a Phoenix Connector (J2) or a Jack

connector (J2). The selection of the supplying connector is done using a three-position

switch (SW1).

Figure 3 shows related schematic. Nominal VBAT voltage is 12 V and can support up to

40 V.

Schematic label Signal name Description

J1-1 VBAT Battery voltage supply input

J1-2 GND Ground

Table 1. VBAT Phoenix connector (J1)

Schematic label Signal name Description

SW1 pin 2-3 VBAT Phoenix Board supplied by Phoenix connector

SW1 pin 2 (middle position) VBAT Board not supplied

SW1 pin 2-1 VBAT jack Board supplied by Jack connector

Table 2. VBAT three position connector (SW1)

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

aaa-039503

Figure 3. VBAT connectors schematic

4.2.3 Power topology configuration

There are two power topologies available depending on the application and OTP

configuration. The device can be supplied directly by the battery after diode and pi filter;

on the other side, the boost regulator can be connected in front-end topology to support

cold cranking profiles.

It is possible to evaluate both power topologies with this board since external boost

components for each topology are soldered separately as shown in Figure 4.

A set of jumper configurations allows you to select between the two options. See Figure 5

and Table 3. Default jumper configuration is boost in front-end topology.

In front-end topology boost is connected to the battery after reverse diode; the output

of the boost supplies the device during cold cranking profiles. Otherwise, boost stops

switching, and it is bypassed. See FS26 data sheet for more information.

In back-end topology or independent boost, the device is supplied by the battery, and the

boost is supplied by the buck regulator VPRE.

aaa-039505

Back

in Front

d (d

efa

ult)

Figure 4. Schematic of boost external components for front end and back-end topologies

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

aaa-039511

ON:

BackEnd

OFF:

ON:

BackEnd

OFF:

Figure 5. Boost configuration jumper section in the schematic

Schematic label Signal name BOOST front-end (default

positions)

BOOST back-end

J3 VBST_BE_IN OFF ON

J4 VBST_G 3-2 1-2

J5 VSUP_PWR 3-2 1-2

J6 VBST_ISH 3-2 1-2

J7 VSUP 3-2 1-2

J8 VBST_ISL 3-2 1-2

J25 VBST_FE_IN ON OFF

J26 VBST_FB 3-2 1-2

Table 3. Jumper configuration for front end and back-end power topologies

Figure 6 shows a simplified diagram of jumper configuration to associated device pins.

aaa-039512

Figure 6. Simplified diagram of jumper configuration for front-end and back-end topologies

When testing the FS26 SBC with a front-end configuration at very low battery level and

loading product at its maximum rating, make sure that the power supply is capable of

providing at least 4.0 A.

4.2.4 Output power supply connectors

Output regulators are accessible through test points or Phoenix connectors in order to

make measurement or plug loads. Male connectors are included on this kit to plug or

unplug wires easily. All output regulators are located at the top edge of the board as

shown in Figure 2.

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

aaa-039513

VBO

VCO

VTRK1

VTRK2

VPRE

VREF

Figure 7. Power output Phoenix connectors

Schematic label Signal name Description

J16-1 VCORE VCORE power supply output

J16-2 GND Ground

Table 4. VCORE connector (J14)

Schematic label Signal name Description

J15-1 VTRK1 VTRK2 power supply output

J15-2 VTRK2 VTRK1 power supply output

J15-3 GND Ground

Table 5. VTRK1/VTRK2 connector (J15)

Schematic label Signal name Description

J16-1 VPRE VPRE power supply output

J16-2 GND Ground

Table 6. VPRE connector (J16)

Schematic label Signal name Description

J17-1 LDO1 LDO1 power supply output

J17-2 LDO2 LDO2 power supply output

J17-3 GND Ground

Table 7. VLDO1/VLDO2 connector (J17)

Schematic label Signal name Description

J18-1 VREF VREF reference output

J18-2 GND Ground

Table 8. VREF connector (J18)

Schematic label Signal name Description

J19-1 VBOOST VBOOST power supply output

Table 9. VBOOST connector (J19)

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

Schematic label Signal name Description

J19-2 GND Ground

Table 9. VBOOST connector (J19)...continued

4.2.5 Signal and program connectors

Signal and program connectors allow access to most of the device signals in order to

program the device externally or to perform debug and diagnosis.

aaa-039514

Figure 8. Signal and debug headers connectors

Schematic label Signal name Description

J11_1 WAKE1_IN WAKE1 input access

J11_2 MOSI MOSI signal access

J11_3 MISO MOSI signal access

J11_4 WAKE2_IN WAKE2 input access

J11_5 VDEBUG VDEBUG pin

J11_6 SCLK SCLK signal access

J11_7 VBAT_Ctrl VBAT_Ctrl KL25Z output access; to control VBAT power by MCU,

JP1 must be OFF

J11_8 CSB CSB signal access

J11_9 MCU_DBG8V MCU_DBG8V KL25Z output access

J11_10 MCU_DBG5V MCU_DBG5V KL25Z output access

J11_11 GND GND

J11_12 GND GND

Table 10. Program connector (J11)

Schematic label Signal name Description

J23_1 VMONEXT External monitoring, resistor bridge side

J23_2 RSTB RSTB IC safety output

J23_3 VDDIO_EXT Optional external supply for VDDIO, make sure that there is a

jumper between J12 5-6 pins

J23_4 INTB INTB interruption output

J23_5 GPIO1 GPIO1 IC side, for signal access; disconnect R87 before use

as an output

J23_6 FS0B FS0B IC safety output

J23_7 GPIO2 GPIO2 IC side, for signal access; disconnect R87 before use

as an output

J23_8 FS1B FS1B IC safety output

Table 11. Signal connector (J23)

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NXP Semiconductors UM11503

KITFS26AEEVM evaluation board

Schematic label Signal name Description

J23_9 FCCU1 FCCU1

J23_10 VMONEXT_0.8V VMONEXT IC side, for access or disconnect R39 to apply

0.8 V externally

J23_11 FCCU2 FCCU2

J23_12 AMUX AMUX pin read

J23_13 GPIO1_IN GPIO1 input side

J23_14 VDDIO VDDIO IC side access

J23_15 GPIO2_IN GPIO2 input side

J23_16 VSUP VSUP pin access

J23_17 DBG_OTP DBG_OTP power supply (8.0 V) access

J23_18 VBAT VBAT access

J23_19 GND GND

J23_20 GND GND

Table 11. Signal connector (J23)...continued

4.2.6 Indicators

The LED indicators on the board display VBAT regulators, safety outputs, and GPIO

status. For VBAT, regulators and GPIOs there are green LEDs indicating that the output

is powered on. The power supply of these indicators is usually VPRE, and it is controlled

by a low voltage MOSFET by the corresponding signal or regulator.

These regulators can be turned Off manually at any time with the switch SW4 in order to

avoid undesired losses and obtain more accurate current consumption measurements.

aaa-039515

(

)

Figure 9. Power and regulator LED indicators

The color of the safety output LED indicators is red. When the safety output is asserted,

LED indicators are turned On and Off when the safety output is released. LEDs can also

be disabled using switch SW5.

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