Freedom Board for Kinetis K22F Hardware (FRDM-K22F) User’s Guide, FRDMK22FUG, Rev. 0, 07/2014

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Freescale Semiconductor, Inc.

FRDM-K22F Hardware Overview

The FRDM-K22F platform features OpenSDAv2, the Freescale open-source hardware embedded serial

and debug adapter running an open-source bootloader. This circuit offers several options for serial

communication, flash programming, and run-control debugging. OpenSDAv2 is an mbed™

HDK-compatible debug interface preloaded with the open-source CMSIS-DAP Interface firmware (mbed

interface) for rapid prototyping and product development, with a focus on connected Internet of Things

devices.

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FRDM-K22F Hardware Overview

The features of the FRDM-K22F hardware are as follows:

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MK22FN512VLH12 MCU—120 MHz, 512 KB flash memory, 128 KB RAM, low-power, and

crystal-less USB in 64 LQFP package)

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Dual role USB interface with USB connector

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RGB LED

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FXOS8700CQ—accelerometer and magnetometer

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Two user push buttons

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Flexible power supply option—OpenSDAv2 USB, K22F USB, or external source

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Easy access to MCU input/output through Arduino R3 compatible I/O connectors

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Programmable OpenSDAv2 debug circuit supporting the CMSIS-DAP interface software that

provides:

— Mass storage device (MSD) flash programming interface

— CMSIS-DAP debug interface over a USB HID connection providing run-control debugging

and compatibility with IDE tools

— Virtual serial port interface

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Optional microSD card slot for operation over SPI

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Optional header for add-on RF module: nRF24L01+ Nordic 2.4 GHz radio

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Optional header for add-on Bluetooth module: JY-MCU BT board V1.05 BT

Figure 1 shows the block diagram of the FRDM-K22F design. The primary components and their

placement on the hardware assembly are explained in Figure 2.