IoT Device: NXP FRDM-K64F

From here, you can set up a FRDM-K64F device to receive FOTA updates.

Choose Your Method

Using Released Binaries

Download the binaries:

wget https://builds.linarotechnologies.org/End-to-end_IoT_system/17.02-preview/mcuboot-frdm_k64f.bin
wget https://builds.linarotechnologies.org/End-to-end_IoT_system/17.02-preview/linaro_fota-frdm_k64f.signed.bin

Once you have the binaries, install the flashing tool on your system, and follow the instructions to flash binaries.

Building From Source

If you’re going to build from source instead, follow instructions on IoT Devices to clone the relevant repositories and set up your build environment, then build both a bootloader (mcuboot) and the Linaro FOTA Zephyr application.

# Establish Zephyr environment
cd <zephyr-project>
export ZEPHYR_SDK_INSTALL_DIR=/path/to/your/zephyr-sdk
export ZEPHYR_GCC_VARIANT=zephyr
. zephyr-env.sh

# Linaro FOTA app
cd <zephyr-fota-hawkbit>
make CONF_FILE=prj_frdm_k64f.conf BOARD=frdm_k64f

# Build bootloader, and sign FOTA app built in previous step.
cd <mcuboot>
make BOARD=frdm_k64f
cp outdir/frdm_k64f/zephyr.bin mcuboot-frdm_k64f.bin
./scripts/zep2newt.py --bin <zephyr-fota-hawkbit>/outdir/frdm_k64f/zephyr.bin \
                      --key root-rsa-2048.pem --sig RSA --vtoff 0x200 \
                      --out linaro_fota-frdm_k64f.signed.bin \
                      --word-size 8 --pad 0x20000 --bit

Flashing Tool

Next, install pyOCD to flash images onto the Nitrogen board.

https://github.com/mbedmicro/pyOCD

Flash K64F with Firmware Binaries

Flash the bootloader and FOTA application binaries to the K64F using pyOCD, after plugging the K64F into your system via USB.

# Bootloader and signed FOTA app. Run these commands from:
# - the directory your downloaded binaries are stored, if you used released binaries.
# - the directory the binaries were built (linaro_fota and mcuboot)

pyocd-flashtool -ce mcuboot-frdm_k64f.bin
pyocd-flashtool -se --address 0x20000 linaro_fota-frdm_k64f.signed.bin

Device Flash Layout

This informational section describes the flash sector layout you have set up using these instructions.

  • bootloader

    • Flash: 0x00000000 - 0x00010000
    • In this setup, the bootloader is the mcuboot zephyr.bin image

  • FOTA app state information

    • Flash: 0x00010000 - 0x00017FFF

  • Currently Unused

    • Flash: 0x00018000 - 0x0001FFFF

  • Application, Bank0

    • Flash: 0x00020000 - 0x0003FFFF
    • Any application, the FOTA app is used here.

  • Application, Bank1

    • Flash: 0x00040000 - 0x0005FFFF
    • Used for storing an updated FOTA app before copying it to bank 0.

  • Scratch

    • Flash: 0x00060000 - 0x0007FFFF
    • Scratch is used when copy an application from Bank1 to Bank0 during mcuboot OTA.

  • Currently Unused

    • Flash: 0x00080000 - 0x000FFFFF
    • The flash layout for K64F leaves 512k unused flash – this is for testing compatibility with smaller HW devices such as Carbon.