RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 5fde2f0f0858dcbd3a7eac0cded6be2ce2d167df

moebius.ever 8160a4089a fixed #1261, modify "axf" to "elf" in rtconfig.py for GCC Toolchains configuration.		%!s(int64=8) %!d(string=hai) anos
..
applications	80a21100b3 remove uart rx code	%!s(int64=8) %!d(string=hai) anos
asflib_config	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos
board	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos
sam_d2x_asflib	be0c547976 remove asflib/components	%!s(int64=8) %!d(string=hai) anos
README.txt	84f0d9f988 Update README.txt	%!s(int64=8) %!d(string=hai) anos
SAM_D2X_RTT.sct	5b1235f5f5 add scons cmd build	%!s(int64=8) %!d(string=hai) anos
SConscript	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos
SConstruct	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos
project.uvprojx	0f3563fd64 [BSP] Update project files	%!s(int64=8) %!d(string=hai) anos
rtconfig.h	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos
rtconfig.py	8160a4089a fixed #1261, modify "axf" to "elf" in rtconfig.py for GCC Toolchains configuration.	%!s(int64=8) %!d(string=hai) anos
template.uvprojx	189c999f8e add atmel SAM D21 bsp support	%!s(int64=8) %!d(string=hai) anos

		
				README.txt
			
				使用SAMD21-Xplained-Pro开发板
scons:
  scons
  scons --target=mdk5
demo代码演示了串口、外部中断、RTC低功耗唤醒