SAMD20 bootloader source code

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Hi,

 

We use a SAMD20 on a custom board and want to upgrade the SAMD20 firmware in the field. It seems my only option is to use SAM bootloader on my board and SAM-BA on a Windows PC.

 

Are there any other options?

 

Where can I find the source code for SAMD20 bootloader. I have googled for it but could not find it.

 

thanks

Yogi

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Last Edited: Sun. Sep 24, 2017 - 01:24 AM
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You could use SOME OTHER bootloader...

The bootloader that Arduino uses on "Zero" (boots via USB or Serial, I think, and based on SAMBA with a couple of tweaks) is at

https://github.com/arduino/Ardui...

 

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Source and the app note for the UART based SAM-BA is still available here

http://www.atmel.com/products/mi...

"Atmel AT04189: UART based SAM-BA Bootloader for SAM D20"

Edit: change "Document Type" to Application Notes on that page.
/Lars

Last Edited: Mon. Sep 11, 2017 - 10:45 AM