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Freescale Semiconductor, Inc.
User’s Guide
© 2015 Freescale Semiconductor, Inc. All rights reserved.
1 Introduction
The Freescale Freedom development board is an evaluation
and development tool ideal for rapid prototyping of
microcontroller-based applications. The hardware design is
form-factor compatible with popular third-party hardware
designed to work with Arduino™ and Arduino-compatible
boards.
The Freescale KL27Z Freedom board (FRDM-KL27Z) is a
simple, yet sophisticated design featuring a Kinetis L series
microcontroller KL27Z, a 3.3V microcontroller built on the
ARM® Cortex®-M0+ core.
The Kinetis L series is the most scalable portfolio of
low-power, robust, mixed signal 32-bit ARM Cortex-M0+
MCUs running up to 48 MHz in the industry. It supports
power supply voltage range from 1.71V to 3.6V, ambient
operating temperature ranges from -40°C to 105°C and
includes up to 64 KB flash.
The FRDM-KL27Z includes the Freescale open standard
embedded serial and debug adapter known as OpenSDA.
This circuit offers the user several options for serial
communications, flash programming and run-control
debugging.
Document Number: FRDMKL27ZUG
Rev. 0, 02/2015
Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. FRDM-KL27Z hardware overview . . . . . . . . . . . . . . . 2
5. FRDM-KL27Z hardware description . . . . . . . . . . . . . 4
5.1. Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.2. Serial and debug adapter (OpenSDA) . . . . . . . . . . . . . 6
5.3. Debugging interface . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.4. Virtual serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.5. Clock source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.6. Serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.7. Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.8. Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.9. Capacitive touch slider . . . . . . . . . . . . . . . . . . . . . . . . 8
5.10. 6-axis accelerometer and magnetometer . . . . . . . . . . . 9
5.11. RGB LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.12. Input/output headers . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.13. Arduino compatibility . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Using the FRDM-KL27Z with EEMBC ULPBench . 12
6.1. Hardware modifications required for EnergyMonitor 12
6.2. Programming the ULPBench device software . . . . . 12
6.3. Hardware configuration . . . . . . . . . . . . . . . . . . . . . . . 12
6.4. EnergyMonitor connections . . . . . . . . . . . . . . . . . . . 13
7. Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FRDM-KL27Z User’s Guide
