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Debugging the SAMD21 with GDB
Using GDB to better understand program state and history.
by Scott Shawcroft
Debug your SAMD21 C code via the GNU Project Debugger (GDB) on Windows, Mac or Linux. Breakpoints allow you to pause your code at points of interest. Once paused, use a backtrace to see the current program state and the micro trace buffer to see the history of the program.
Debug Header for the Feather [M0]
Make a Simple JTAG Debugging FeatherWing for the M0
by Michael Sklar
Single Step JTAG Debugging is here and stable for the Arduiino. Adafruit's Feather M0 line not only provide 5x the clock speed and 8x the storage of recent Arduino's, but they now have the ability to talk to a debugger. This tutorial will show you how to make a simple FeatherWing PCB and connect to it from MacOS / OS/X.
Bluefruit nRF52 Feather Learning Guide
Get started now with our most powerful Bluefruit board yet!
by Kevin Townsend
This learning guide will help you get setup and started with the ARM Cortex M4F based nRF52 Bluetooth Low Energy system on chip. You can run your Arduino code directly on the nRF52, and take advantage of the SoC's high performance, without sacrificing ease of use.
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Adafruit nRF52 Pro Feather with Mynewt
Take your Bluetooth LE projects to the next level with the mynewt RTOS
by lady ada
The Adafruit Feather nRF52 Pro ships pre-programmed with the Mynewt serial bootloader that allows you to flash firmware to the device directly from the command-line using the on-board USB Serial converter and the 'newtmgr' tool, so you can get started right away with no additional hardware required. For more advanced debugging, however, you can use a Segger J-Link and the on-board SWD debug connector, which gives you access to a more powerful set of development tools and options.