FRDM-K82F

Board Overview

FRDM-K82F

Name:

frdm_k82f

Vendor:

NXP Semiconductors

Architecture:

arm

SoC:

mk82f25615

Browse board sources

Overview

The FRDM-K82F is a low-cost development platform for Kinetis K80, K81, and K82 MCUs.

• Form-factor compatible with the Arduino R3 pin layout

• Peripherals enable rapid prototyping, including a six-axis digital accelerometer and magnetometer to create full eCompass capabilities, a tri-colored LED and two user push-buttons for direct interaction, 2x32 Mb QuadSPI external flash, FlexIO camera header, touchpads and headers for use with Bluetooth and 2.4 GHz radio add-on modules

• OpenSDAv2.1, the NXP open source hardware embedded serial and debug adapter running an open source bootloader, offers options for serial communication, flash programming, and run-control debugging

Hardware

• MK82FN256VLL15 MCU (150 MHz, 256 KB flash memory, 256 KB RAM, low-power, crystal-less USB, and 100 Low profile Quad Flat Package (LQFP))

• Dual role USB interface with micro-B USB connector

• RGB LED

• FXOS8700CQ accelerometer and magnetometer

• Two user push buttons

• 2x 32 Mb QSPI flash

• Flexible power supply option - OpenSDAv2.1 USB, Kinetis K82 USB, and external source

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

• Programmable OpenSDAv2.1 debug circuit supporting the CMSIS-DAP Interface software that provides:

  • Mass storage device (MSD) flash programming interface

  • CMSIS-DAP debug interface over a driver-less USB HID connection providing run-control debugging and compatibility with IDE tools

  • Virtual serial port interface

  • Open source CMSIS-DAP software project

• FlexIO header

For more information about the K82F SoC and FRDM-K82F board:

• K82F Website

• K82F Datasheet

• K82F Reference Manual

• FRDM-K82F Website

• FRDM-K82F User Guide

• FRDM-K82F Schematics

Supported Features

The frdm_k82f board supports the hardware features listed below.

on-chip / on-board

Feature integrated in the SoC / present on the board.

2 / 2

Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.

vnd,foo

Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

frdm_k82f

/

mk82f25615

frdm_k82f/mk82f25615 target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M4F CPU1	arm,cortex-m4f
ADC	on-chip	Kinetis ADC161	nxp,kinetis-adc16
Clock control	on-chip	Kinetis System Integration Module (SIM) IP node1	nxp,kinetis-sim
	on-chip	Generic fixed factor clock provider4	fixed-factor-clock
	on-chip	NXP Kinetis Multipurpose Clock generator (MCG) IP node1	nxp,kinetis-mcg
Counter	on-chip	NXP Periodic Interrupt Timer (PIT)1	nxp,pit
	on-chip	Child node for the Periodic Interrupt Timer node, intended for an individual timer channel4	nxp,pit-channel
DMA	on-chip	NXP MCUX EDMA controller1	nxp,mcux-edma
Flash controller	on-chip	NXP Kinetis Flash Memory Module A (FTFA)1	nxp,kinetis-ftfa
GPIO & Headers	on-chip	Kinetis GPIO5	nxp,kinetis-gpio
	on-board	GPIO pins exposed on Arduino Uno (R3) headers1	arduino-header-r3
I2C	on-chip	Kinetis I2C2 2	nxp,kinetis-i2c
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	arm,v7m-nvic
LED	on-board	Group of GPIO-controlled LEDs1	gpio-leds
	on-board	Group of PWM-controlled LEDs1	pwm-leds
MMU / MPU	on-chip	NXP System Memory Protection Unit (SYSMPU)1	nxp,sysmpu
MTD	on-chip	Flash node1	soc-nv-flash
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	fixed-partitions
	on-board	Properties supporting Zephyr spi-nor flash driver (over the Zephyr SPI API) control of serial flash memories using the standard M25P80-based command set1	jedec,spi-nor
Pin control	on-chip	NXP PORT Pin Controller5	nxp,port-pinmux
	on-chip	NXP PORT Pin Controller1	nxp,port-pinctrl
PWM	on-chip	NXP FlexTimer Module (FTM) PWM controller1	nxp,ftm-pwm
RNG	on-chip	Kinetis TRNG (True Random Number Generator)1	nxp,kinetis-trng
RTC	on-chip	NXP Real Time Clock (RTC)1	nxp,rtc
Sensors	on-board	FXOS8700 6-axis accelerometer/magnetometer sensor1	nxp,fxos8700
Serial controller	on-chip	NXP LPUART1 4	nxp,lpuart
SPI	on-chip	NXP DSPI controller2 1	nxp,dspi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv7-M System Tick1	arm,armv7m-systick
	on-chip	NXP FlexTimer Module (FTM)3	nxp,ftm
USB	on-chip	NPX Kinetis USBFSOTG Controller in device mode1	nxp,kinetis-usbd
Watchdog	on-chip	Kinetis watchdog1	nxp,kinetis-wdog

Note

For additional features not yet supported, please also refer to the FRDM-K64F, which is the superset board in NXP’s Kinetis K series. NXP prioritizes enabling the superset board with NXP’s Full Platform Support for Zephyr. Therefore, the frdm_k64f board may have additional features already supported, which can also be re-used on this frdm_k82f board.

System Clock

The K82F SoC is configured to use the 12 MHz external oscillator on the board with the on-chip PLL to generate a 120 MHz system clock.

Serial Port

The K82F SoC has five UARTs. One is configured for the console, the remaining ones are not used.

USB

The K82F SoC has a USB OTG (USBOTG) controller that supports both device and host functions through its micro USB connector (J11). Only USB device function is supported in Zephyr at the moment.

Programming and Debugging

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Configuring a Debug Probe

A debug probe is used for both flashing and debugging the board. This board is configured by default to use the OpenSDA DAPLink Onboard Debug Probe.

Early versions of this board have an outdated version of the OpenSDA bootloader and require an update. Please see the DAPLink Bootloader Update page for instructions to update from the CMSIS-DAP bootloader to the DAPLink bootloader.

Option 1: OpenSDA DAPLink Onboard Debug Probe (Recommended)

Install the pyOCD Debug Host Tools and make sure they are in your search path.

Follow the instructions in OpenSDA DAPLink Onboard Debug Probe to program the OpenSDA DAPLink FRDM-K82F Firmware.

Option 2: OpenSDA J-Link Onboard Debug Probe

Install the J-Link Debug Host Tools and make sure they are in your search path.

Follow the instructions in OpenSDA J-Link Onboard Debug Probe to program the OpenSDA J-Link Firmware for FRDM-K82F.

Add the arguments -DBOARD_FLASH_RUNNER=jlink and -DBOARD_DEBUG_RUNNER=jlink when you invoke west build to override the default runner from pyOCD to J-Link:

# From the root of the zephyr repository
west build -b frdm_k82f samples/hello_world -- -DBOARD_FLASH_RUNNER=jlink -DBOARD_DEBUG_RUNNER=jlink

Configuring a Console

Regardless of your choice in debug probe, we will use the OpenSDA microcontroller as a usb-to-serial adapter for the serial console.

Connect a USB cable from your PC to J5.

Use the following settings with your serial terminal of choice (minicom, putty, etc.):

• Speed: 115200

• Data: 8 bits

• Parity: None

• Stop bits: 1

Flashing

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b frdm_k82f samples/hello_world
west flash

Open a serial terminal, reset the board (press the SW1 button), and you should see the following message in the terminal:

***** Booting Zephyr OS v1.14.0-xxx-gxxxxxxxxxxxx *****
Hello World! frdm_k82f

Debugging

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b frdm_k82f samples/hello_world
west debug

Open a serial terminal, step through the application in your debugger, and you should see the following message in the terminal:

***** Booting Zephyr OS v1.14.0-xxx-gxxxxxxxxxxxx *****
Hello World! frdm_k82f

Support Resources for Zephyr

• NXP Zephyr Downstream Software Development Kit

• MCUXpresso for VS Code, wiki documentation and Zephyr lab guides

• NXP Zephyr Knowledge Hub

• NXP’s Zephyr landing page (including training resources)

• NXP Support Community forum for Zephyr