samd09-tiny.cpp Sample project using tiny with SAMD09D14A. Setup Install gcc-arm-none-eabi Install openocd Use Compile make -f target.mk Clean make -f target.mk clean Erase via SWD make -f target.mk erase Flash via SWD make -f target.mk upload Resources SAMD09D14A Datasheet SAMD Arduino Core ATSAMD09 seesaw Pinout ATSAMD09 seesaw Schematic