RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ b6031497b9c6cb0b0b6aec8dd465e92dea1ee430

kopia lustrzana https://github-proxy.rt-thread.io/RT-Thread/rt-thread.git

bigmagic b6031497b9 fix execption printf err		6 lat temu
..
cortex-a53	b6031497b9 fix execption printf err	6 lat temu
SConscript	fdde8ab198 add raspi2 and raspi3 BSP	6 lat temu