RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 989cedb278eeeb63fac2841bdff19a2feb6ca3b4

yangjie eeaf1fcc50 resolve Conflicts		il y a 5 ans
..
applications	eeaf1fcc50 resolve Conflicts	il y a 5 ans
asflib_config	189c999f8e add atmel SAM D21 bsp support	il y a 8 ans
board	ef62febf1f [SConscript]update group name	il y a 5 ans
sam_d2x_asflib	62058e18fe [bsp][samd21] update scons script.	il y a 7 ans
README.txt	84f0d9f988 Update README.txt	il y a 8 ans
SAM_D2X_RTT.sct	5b1235f5f5 add scons cmd build	il y a 8 ans
SConscript	189c999f8e add atmel SAM D21 bsp support	il y a 8 ans
SConstruct	7be06b67bb [add] default environment	il y a 6 ans
project.uvprojx	0f3563fd64 [BSP] Update project files	il y a 8 ans
rtconfig.h	0d7ba79219 Remove the DBG_COLOR and DBG_ENABLE definition.	il y a 6 ans
rtconfig.py	62058e18fe [bsp][samd21] update scons script.	il y a 7 ans
template.uvprojx	189c999f8e add atmel SAM D21 bsp support	il y a 8 ans

		
				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