Skip to content

Latest commit

 

History

History
146 lines (106 loc) · 5.01 KB

Adafruit_Feather_STM32F405_with_AirLift.md

File metadata and controls

146 lines (106 loc) · 5.01 KB
Raw

Adafruit Feather STM32F405 + AirLift FeatherWing

main board

Prerequisites

Hardware:

  • Adafruit Feather STM32F405
  • Adafruit AirLift FeatherWing (ESP32) to act as a Network Co-Processor
  • Jumper wires
  • USB Type C cable

Software:

Configure and build the sample project

git clone https://github.com/Blynk-Technologies/BlynkNcpExample_Zephyr
cd BlynkNcpExample_Zephyr
git submodule update --init --recursive

Fill in the information from your Blynk Template:

cd samples/basic
echo 'CONFIG_BLYNK_TEMPLATE_ID="TMPxxxxxxxxx"' >> prj.conf
echo 'CONFIG_BLYNK_TEMPLATE_NAME="OurProduct"' >> prj.conf

Build:

export ZEPHYR_BASE=~/zephyrproject/zephyr
./build.sh adafruit_feather_stm32f405
Expected output 
...
...
[173/174] Linking C executable zephyr/zephyr.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       63144 B     389760 B     16.20%
             RAM:         23 KB       128 KB     17.97%
             CCM:          0 GB        64 KB      0.00%
        IDT_LIST:          0 GB         2 KB      0.00%
Generating files from build/basic/zephyr/zephyr.elf for board: adafruit_feather_stm32f405
image.py: sign the payload
image.py: sign the payload
image.py: sign the payload
image.py: sign the payload
[174/174] cd ....../build/basic/zephyr/zephyr.elf
[11/16] Performing build step for 'mcuboot'
[1/273] Preparing syscall dependency handling

[3/273] Generating include/generated/version.h
-- Zephyr version: 3.5.99 (/home/user/zephyrproject/zephyr), build: zephyr-v3.5.0-3889-ge49d174be910
[272/273] Linking C executable zephyr/zephyr.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       31942 B        64 KB     48.74%
             RAM:       18304 B       128 KB     13.96%
             CCM:          0 GB        64 KB      0.00%
        IDT_LIST:          0 GB         2 KB      0.00%
Generating files from build/mcuboot/zephyr/zephyr.elf for board: adafruit_feather_stm32f405
[273/273] cd ....../build/mcuboot/zephyr/zephyr.elf
[16/16] Completed 'mcuboot'

Flash the board

To flash STM32F405, you need to connect B0 to 3v3 using a green (important!) jumper wire, then run these commands:

# Flash MCUboot
west flash --build-dir build/mcuboot
# Flash sample
west flash --build-dir build/basic

Note

The flash utility will ask to reset your board to switch to DFU mode.
Press the Rst button shortly.

After flashing the board, please disconnect the jumper.

Flash the Network Co-Processor

👉 Follow the detailed AirLift FeatherWing flashing guide

Assemble the board and verify

Warning

When assembling the board, ensure that all USB ports are disconnected from any components, and that there is no power supply connected.

  1. Insert AirLift FeatherWing shield into the Feather board.

  2. Connect your device using USB. The device will appear as a CDC-ACM serial.

  3. Use your favourite serial terminal software (PuTTY, minicom, screen) to access the serial console (115200 8N1).

  4. The expected serial monitor output looks like this:

    *** Booting Zephyr OS build zephyr-v3.5.0-3889-ge49d174be910 ***
[00:00:03.002,000] <inf> blynk_example: Blynk.NCP host example
[00:00:03.002,000] <inf> blynk_example: Firmware version: 0.0.1
[00:00:03.854,000] <inf> blynk_ncp: Blynk.NCP ready br 38400
[00:00:03.854,000] <inf> blynk_ncp: setting target br 115200
[00:00:03.883,000] <inf> blynk_ncp: Blynk.NCP ready br 115200
[00:00:03.886,000] <inf> blynk_ncp: NCP firmware: 0.6.3
[00:00:03.903,000] <inf> blynk_ncp: NCP state changed [Not Initialized] => [Configuration]

Use the Blynk iOS/Android app to configure your new device

Ensure that the Blynk App is installed on your smartphone.

Open the Blynk App -> click Add New Device -> select Find Devices Nearby

Next steps

  • Use Blynk.Air to perform OTA update of your device firmware
    • The firmware file can be found here: ./build/basic/zephyr/zephyr.signed.bin
  • Learn about Zephyr firmware signing
  • Use west build -t menuconfig to explore the available settings

Troubleshooting

Check out the troubleshooting guide

Disclaimer

The community edition of Blynk.NCP is available for personal use and evaluation. If you're interested in using Blynk.NCP for commercial applications, feel free to contact Blynk. Thank you!