The FRDM-K22F is the second Freedom board featuring a Kinetis K Next-Generation MCU (after the FRDM-K64F).
It is targeting USB applications with a high-level of integration thanks to the crystal-less feature of its new USB controller (48MHz external crystal saved on the BOM cost) and the lower-power capabilities of this new generation of ARM Cortex-M4 MCUs. The FRDM-K22F is based on a Kinetis MK22FN512VLH12 device featuring an ARM Cortex-M4 core @120MHz with Floating Point Unit and embeds 512KB Flash, 128KB RAM in a LQFP64 Package.
The new OpenSDA v2 (same as FRDM-K64F) supports CMSIS-DAP interface software which provides: Mass Storage Device (MSD flash programming, CMSIS-DAP debug over USB and a virtual serial port.
The FRDM-K22F comes with demo applications including:
- Bubble level –Single axis level using the red and green LEDs to indicate when the board is unlevel.
- eCompass demo –Compass using the combined magnetometer and accelerometer to indicate the heading of board in reference to magnetic north.
- USB CDC demo –Second serial terminal
- Metal Detector demo –Metal detector demo that indicates the direction and distance to a foreign metal object using the variable LED brightness as the indicator.
- Stopwatch demo –Uses the real-time counter (RTC) to implement a stopwatch with 1/100thof a second precision.
- Air mouse demo –USB mouse using the accelerometer to determine where/how to move the cursor
- Barcode scanners
- Gaming accessories
- Health and wellness monitors
- Home and building automation
- Industrial/commercial sensor nodes
- IoT data concentrators
- Multi-functional printers
- Sports and activity wearables
- MCU - MK22FN512VLH12MCU –120 MHz, 512 KB Flash, 128 KB SRAM, FPU, DSP, crystal-less USB (USB device), 64 LQFP
- FXOS8700CQ accelerometer and magnetometer
- RGB LED
- Flexible power supply options –USB, external source
- Easy access to MCU I/O
- Optional add-on modules: microSDcard (over SPI), RF24L01 (RF) and JY-MCU (Bluetooth)
- Form factor compatible with Arduino™ R3 pin layout
- New, OpenSDAv2 serial and debug interface Open-source hardware design
- Open-source bootloader and firmware
- Virtual Serial port interface
- Mass storage device (MSD) flash programming interface –no tool installation required to evaluate demo apps
- CMSIS-DAP interface: new ARM standard for embedded debug interface
- FRDM-K22F hardware
- Quick Reference Card
- Additional hardware required: USB A-to-MicroB cable (not included)
J11, you may need to disconnect the OpenSDAv2 SWD circuit from the K22F by removing jumpers J13 and J10.