I am using an Adafruit Adalogger M0 board which works fine 99% now I stumbled across a bug where If I use two SD cards i get an runtime access error. Compilation is fine.
If I compile and upload the same code from Arduino IDE it works fine, no runtime errors. I did some digging and found out that i need following boards in Arduino IDE
Arduino SAMD Boards 1.6.2
Adafruit SAMD Boards 1.3.0
Any newer Board toolchain and the problem shows up I assume it is some kind of timing / SPI issue.
Anyways I can use
platform_package = email@example.com
But I could not find any documentation on how to use the older adafruit tools. Any hints?