On 05-08-15 12:05, Gene Cumm wrote: > > I recompiled with this in mk/devel.mk <http://devel.mk>: > > GCCWARN += -DDEBUG_PORT=0x2f8 -DCORE_DEBUG=1 > > 0x2f8 is a BIOSism. Is this a problem? The example in the comments said 0x3f8 which is COM1.