Freescale Semiconductor, Inc.

User’s Guide

© 2014 Freescale Semiconductor, Inc. All rights reserved.

1

Introduction

The Freescale Freedom development platform is a set of

software and hardware tools for evaluation and

development. It is ideal for rapid prototyping of

microcontroller-based applications. The Freescale Freedom

K22 hardware, FRDM-K22F, is a simple yet sophisticated

design featuring a Kinetis K series microcontroller built on

the ARM® Cortex®-M4 core which features a floating point

unit (FPU).

FRDM-K22F can be used to evaluate the K22FN512,

K22FN256, and K22FN128 Kinetis K series devices. The

FRDM-K22F board features the MK22FN512VLH12

MCU, which boasts a maximum operation frequency of

120 MHz, 512 KB of flash, a 128 KB RAM, a full-speed

USB controller with available crystal-less operation, and

analog and digital peripherals. The FRDM-K22F hardware

is form-factor compatible with the ArduinoTM R3 pin layout,

providing a broad range of expansion board options. The

onboard interface includes a six-axis digital accelerometer

and magnetometer, an RGB LED, and sufficient footprint to

add an optional Bluetooth module (for use over UART), an

RF module (for use over SPI), and an SDHC slot (for use

over SPI).

Document Number: FRDMK22FUG

Rev. 0, 07/2014

Contents

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. FRDM-K22F Hardware Overview . . . . . . . . . . . . . . . 2

3. FRDM-K22F Hardware Description . . . . . . . . . . . . . 4

4. Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5. Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6. Universal Serial Bus (USB) . . . . . . . . . . . . . . . . . . . . 9

7. Secure Digital Card . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8. Accelerometer and Magnetometer . . . . . . . . . . . . . . 12

9. RGB LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

10. Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

11. Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

12. Push Button Switches . . . . . . . . . . . . . . . . . . . . . . . . 13

13. Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

14. Add-On Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

15. Input/Output Connectors . . . . . . . . . . . . . . . . . . . . . . 15

16. Arduino Compatibility . . . . . . . . . . . . . . . . . . . . . . . 16

17. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

18. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Freedom Board for Kinetis K22F

Hardware (FRDM-K22F)

User’s Guide