. flash tool
 . improve flash writing, still use word fast write... too slow

. documentation
 . make README points to doc/tutorial

. compile and test a realtime kernel, for instance:
http://www.chibios.org/dokuwiki/doku.php?id=chibios:articles:stm32l_discovery
svn checkout https://chibios.svn.sourceforge.net/svnroot/chibios/trunk ;
cd chibios/trunk/demos/ARMCM3-STM32L152-DISCOVERY ;
make ;