To setup the WICED Feather on OS X, the following steps are necessary:

This page assumes you have already installed the WICED Feather BSP, as detailed earlier in this guide.

Install dfu-util

The WICED Feather uses USB DFU to perform firmware updates from the Arduino IDE.  To enable to Arduino IDE to talk to the board you will need to install dfu-util.

The easiest way to install dfu-util is to use homebrew, which can be installed with the following command if it doesn't already exist on your system:

/usr/bin/ruby -e "$(curl -fsSL"

Once homebrew is installed you can install dfu-util from the command line with the following command:

brew install dfu-util

Testing the Installation

You can check if dfu-util was installed correctly by running the following command with the WICED Feather connected:

Make sure your board is in DFU mode before running this command. You can enter DFU mode by double-clicking the RESET button quickly, or by setting the DFU pin to GND at startup. You'll know that are in DFU mode because the status LED will blink at a 5Hz rate.
dfu-util --list

This should give you results resembling the following output:

dfu-util 0.8

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to [email protected]

Deducing device DFU version from functional descriptor length
Found DFU: [239a:0008] ver=0200, devnum=12, cfg=1, intf=0, alt=0, name="@Internal Flash   /0x08000000/02*016Ka,02*016Kg,01*064Kg,07*128Kg", serial="00000000001C"

Install Python Tools

The WICED Feather BSP uses a few Python based tools (see the tools/ folder for details).

To use these Python tools, you will need to have Python available on your system (which OS X does by default), but you will also need a few additional libraries to make the python scripts work.

Running the following command from the command line will install these dependencies:

Depending on your system setup you may need to run the pip commands with 'sudo'
# On versions of OS X from 10.11.5 onward run ...
sudo pip install pyusb
sudo pip install click

# On versions of 0S X before 10.11.5 run ...
sudo pip install --pre pyusb
sudo pip install click
If you get an error like '-bash: pip: command not found' you can install pip via 'sudo easy_install pip'

Testing the Installation

You can test if Python is setup correctly by going to the '/tools/source' folder in the WICED Feather BSP and running the following command with the WICED Feather connected:

As of BSP release 0.6.5 and higher the feather_dfu Python tool has been converted to a binary tool called wiced_dfu, and the section below should only be followed on earlier versions of the BSP. Version 0.6.5 and higher ship with pre-compiled versions of wiced_dfu, or you can build the binary yourself using the makefile in the tools/wiced_dfu folder.
cd tools/source/feather_dfu
python info

This should display something resembling the following output:

Mar  8 2016

Optional: Install AdaLink

If you ever need to reflash the USB DFU bootloader on the WICED Feather (which will require either a Segger J-Link or an STLink/V2), you will also need to install a utility called AdaLink.

AdaLink acts as a simple python-based abstraction layer between various HW debuggers, and the different ARM MCU families that we use at Adafruit.

For installation instructions on AdaLink see the Readme file in the git repository.

This guide was first published on Mar 23, 2016. It was last updated on Sep 14, 2016.

This page (OS X Setup) was last updated on Mar 09, 2016.

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