atmel samd: initial blinky demo

Uses the DEVICE linker and config generation style.

examples/sam/d/Makefile.include

@@ -0,0 +1,33 @@
+##
+## This file is part of the libopencm3 project.
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+# You should use linker script generation! Specify device!
+ifeq ($(DEVICE),)
+LIBNAME		= opencm3_samd
+DEFS		+= -DSAMD
+FP_FLAGS	?= -msoft-float
+ARCH_FLAGS	= -mthumb -mcpu=cortex-m0plus $(FP_FLAGS)
+endif
+
+################################################################################
+# OpenOCD specific variables
+
+OOCD		?= openocd
+OOCD_INTERFACE	?= cmsis-dap
+OOCD_BOARD	?= 
+
+include ../../../../Makefile.rules