Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/

embeddedmcumicrocontrollernuttxreal-timertos

patacongo 74ba2d3a59 up_earlyserialinit is not used on these platforms ... git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1547 42af7a65-404d-4744-a932-0658087f49c3		2009-03-01 15:58:25 +00:00
arch	up_earlyserialinit is not used on these platforms	2009-03-01 15:58:25 +00:00