Nicola Wrachien
Published © MIT

SAM D21 Board Unbricker

A simple device that reflashes a bootloader via SWD on bricked SAM D21 boards (e.g. due to incorrect BOSSA settings).

BeginnerFull instructions provided15 minutes250
SAM D21 Board Unbricker

Things used in this project

Hardware components

uChip
ITACA Innovation uChip
Available at https://shop.itaca-innovation.com
×1
ON Semiconductor BC327
×1
Resistor 1k ohm
Resistor 1k ohm
The value is not critical. 1.5k ohm (as shown in the project's picture) is good too.
×1
Breadboard (generic)
Breadboard (generic)
×1
Jumper wires (generic)
Jumper wires (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE
bin2header
This is required only if you need to unbrick a board which is not uChip.

Story

Read more

Schematics

schematics

Code

uChip SAMD21 boards unbrick Arduino Sketch

C/C++
No preview (download only).

uChip SAMD21 boards unbrick Arduino Sketch

C/C++
Arduino Sketch + supporting files.
No preview (download only).

Credits

Nicola Wrachien

Nicola Wrachien

2 projects • 2 followers
I was born, then I got my master, a PhD. I forgot about all what's in between.

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