Nxp Frdm-ke17z Board User Manual

NXP FRDM-KE17Z Board

Overview

The Kinetis KE17Z freedom (FRDM-KE17Z) board is a standalone development platform that supports two microcontrollers
(MCUs): the target MCU and an open-standard serial and debug adapter (OpenSDA) MCU. The target MCU is MKE17Z256VLL7, which is a part of Kinetis E series of Arm® Cortex®-M0+ MCU product family. The OpenSDA MCU is a Kinetis K Series K20 family device, MK20DX128VFM5.
The FRDM-KE17Z board is compatible with the Arduino shields, the NXP FRDM-TOUCH board, and the NXP FRDM-MC-LVBLDC board.
The FRDM-KE17Z board comes preloaded with the bubble peripheral demo. The demo is available at the
boards\frdmke17z\demo_apps\bubble_peripheral folder of MCUXpresso SDK. The board is lead-free and RoHS-compliant.
This document provides detailed information about the FRDM-KE17Z board interfaces, power supplies, clocks, LEDs, sensors, and other interfaces.

Acronyms

The table below lists and explains the acronyms and abbreviations used in this document.

Table 1. Acronyms and abbreviations

Related documentation

The table below lists and explains the additional documents and resources that you can refer to for more information on FRDM-KE17Z. Some of the documents listed below may be available only under a non-disclosure agreement (NDA). To request access to these documents, contact your local field applications engineer (FAE) or sales representative.

Table 2. Related documentation

Kit contents

The table below lists the items included in the FRDM-KE17Z kit.

Table 3. Hardware kit contents

Block diagram

The figure below shows the FRDM-KE17Z block diagram. Board pictures

The figure below shows the top-side view of FRDM-KE17Z.
Figure 2. FRDM-KE17Z top view The figure below shows the onboard jumpers and connectors on FRDM-KE17Z.

Figure 3. FRDM-KE17Z jumpers and connectors The figure below shows the LEDs and push buttons on FRDM-KE17Z.
Figure 4. FRDM-KE17Z LEDs and push buttonsBoard features

The table below lists the features of FRDM-KE17Z. Figure 2 shows different components of FRDM-KE17Z.

Table 4. FRDM-KE17Z features

Push buttons

In addition to a Reset button for manually triggering a system reset, FRDM-KE17Z supports 2 interrupt push buttons. The following table explains the push buttons on FRDM-KE17Z. Figure 4 shows push buttons on FRDM-KE17Z.

Table 5. Reset and Interrupt push buttons

Connectors

Connectors are onboard devices that allow to connect external devices to the board. Figure 3 shows the FRDM-KE17Z connectors. The table below describes the connectors.

Table 6. FRDM-KE17Z connectors

Jumpers

Jumpers (or shorting headers) are small connectors that allow to choose from two or more options available. Jumpers are installed during board assembly and do not require any changes. In FRDM-KE17Z, all jumpers are 2/3-pin connectors with two settings: open and shorted. Figure 3 highlights the FRDM-KE17Z jumpers available for use. The table below describes the jumpers.
The following is a list of all of the jumper options on FRDM-KE17Z.

Table 7. FRDM-KE17Z jumpers

LEDs

FRDM-KE17Z has light-emitting diodes (LEDs) to monitor system functions, such as power-on, reset, board faults, and so on. The information collected from LEDs can be used for debugging purposes.
LEDs are highlighted in Figure 4. The table below describes the FRDM-KE17Z LEDs.

Table 8. FRDM-KE17Z LEDs

FRDM-KE17Z Functional Description

This chapter describes the features and functions of FRDM-KE17Z. For details of the MKE17Z256VLL7 MCU features, see Kinetis KE17Z/13Z/12Z with up to 256 KB Flash Reference Manual.
The chapter is divided into the following sections:

• Power supplies
• Clocking
• TSI
• 6-axis digital sensor
• Thermistor
• OpenSDA
• Input/Output headers
• Bluetooth

Power supplies

FRDM-KE17Z can be powered with 5 V power supply via:

• an external DC power supply
• OpenSDA USB micro-AB connector
• I/O header, J3

The power supply devices on the board use the 5 V power to generate required power supplies for MKE17Z256VLL7,
SWD interface, I/O headers for Arduino shields, NXP FRDM-TOUCH board, and NXP FRDM-MC-LVBLDC, and numerous other peripherals.
Since, MKE17Z256VLL7 supports 2.7 V to 5.5 V power supply, MKE17Z256VLL7 can be powered 3.3 V or 5 V by setting J18. For details about setting J18, see Jumpers. However, OpenSDA MK20DX128VFM5 is always 3.3 V powered.

Primary power supply

FRDM-KE17Z can be powered up using one of the following ways:

Table 9. Primary power supply

Secondary power supplies

The table below describes the FRDM-KE17Z power supply devices that generate secondary power supplies for the board.

Clocking

FRDM-KE17Z has the capability to run up to 72 MHz.
The table below provides details of different clocks of FRDM-KE17Z.

Table 10. FRDM-KE17Z clocks

TSI

MKE17Z256VLL7 includes the Touch Sensing Input (TSI) module to detect capacitive touch sensor.
TSI is an electrode capacitive scan method based on the hardware. The basic element in capacitive touch sensing is the electrode. In this case, the electrode is an area of conductive material with dielectric material on the top, usually plastic or glass. This is what the user touches. This conductive area plus the dielectric material effectively create a capacitor referenced to the system ground. By touching the dielectric on top of the electrode, the user effectively changes the electrode capacitance both by adding a second conductive area that is grounded and by increasing the dielectric of the original capacitor. The sensor, or the TSI module in this case, uses a capacitive sensing method to measure changes in the electrode capacitance.
FRDM-TOUCH is a touch shield board for FRDM-KE17Z with capacitive touch buttons, slider, and rotary. This board can connect with FRDM-KE17Z and control the onboard RBG LED using keys, slider, and rotary touches.
FRDM-KE17Z includes two touch electrodes to support TSI functions in self-capacitive mode.
The touch electrode 1 is connected to TSI0 channel 8 and touch electrode 2 is connected to TSI1 channel 20.

Table 11. TSI touch pad connections

FRDM-KE17Z outputs TSI signals to headers J2 and J4 to support the FRDM-TOUCH board. FRDM-TOUCH includes four touch keys in a mutual-capacitive mode, touch slider, and rotary.

Table 12. TSI lane connections

6-axis digital sensor

FRDM-KE17Z reserves an area (U12) to support motion sensing with NXP FXOS8700CQ 6-axis sensor with integrated linear accelerometer and magnetometer. FXOS8700CQ is a small, low-power, 3-axis, linear accelerometer and 3-axis, magnetometer combined into a single package.
FXOS8700CQ is connected to MKE17Z256VLL7 through an I2C interface, LPI2C0. The I2C address for FXOS8700CQ is 0x1C. Since, MKE17Z256VLL7 is 5 V powered by default, voltage level translators (U11, U13) are connected between MKE17Z256VLL7 and FXOS8700CQ to provide 3.3 V power supply to FXOS8700CQ.

Table 13. FXOS8700CQ pin connections

Thermistor

FRDM-KE17Z includes a Positive Temperature Coefficients (PTC) thermistor with following features:

• Supports temperature from 90 °C to -20 °C
• THERM_0 is connected to the PTC1 pin on MKE17Z256VLL7
• THERM_1 is connected to the PTC0 pin on MKE17Z256VLL7

OpenSDA

OpenSDA is an open-standard serial and debug adapter.

The onboard MK20DX128VFM5 OpenSDA circuit bridges serial and debug communications between the USB host and MKE17Z256VLL7. The OpenSDA circuit provides an SWD debug interface to MKE17Z256VLL7. A standard USB A male to micro-AB male cable is used for debugging via the USB connector (J6).
The P&E debug application is an OpenSDA application that provides debugging and a virtual serial port all in one application. USB drivers for all P&E Microcomputer Systems debug tools are available at http://www.pemicro.com/opensda.
For details about the JTAG and SWD connectors, see Connectors.
The following table explains the OpenSDA signals connected to the target MCU (MKE17Z256VLL7).

Table 14. OpenSDA interface signals

Input/Output headers

FRDM-KE17Z supports I/O headers compatible with the Arduino shields, the NXP FRDM-TOUCH board, and the NXP FRDM-MC-LVBLDC board. The following tables explain the pinouts for Arduino on FRDM-KE17Z.

Table 15. J2 connector (at left-upper side) pinouts for Arduino

Table 16. J1 connector (at right-upper side) pinouts for Arduino

Table 17. J3 connector (at left-lower side) pinouts for Arduino

Table 18. J4 connector (at right-lower side) pinouts for Arduino

Bluetooth
FRDM-KE17z supports 1×4 Bluetooth header, J19. J19 is connected to the MKE17Z256VLL7 through the LPUART1 interface. The following table shows the connections for the Bluetooth header Tx/Rx signals.

Table 19. Bluetooth header connections

Appendix A

Revision History

The table below summarizes the revisions to this document. Table 20. Revision history

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References

• NXP® Semiconductors Official Site | NXP Semiconductors
• Our Terms And Conditions Of Commercial Sale | NXP Semiconductors
• Support | NXP Semiconductors
• Domain Registered at Safenames
• NXP® Semiconductors Official Site | NXP Semiconductors
• Our Terms And Conditions Of Commercial Sale | NXP Semiconductors
• Support | NXP Semiconductors
• PEmicro | Experts in Embedded tools for Flash Programming and Development
• MCUXpresso SDK | Software Development for Kinetis, LPC, and i.MX MCUs | NXP Semiconductors