RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ v5.2.0

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

heyuanjie87 caac564854 [bsp] add k230		1 rok temu
..
SConscript	caac564854 [bsp] add k230	1 rok temu
drv_uart.c	caac564854 [bsp] add k230	1 rok temu
drv_uart.h	caac564854 [bsp] add k230	1 rok temu