AT command interface works! The cause of the breakage was the same Nucleus API issue with NU_Create_Timer() which we encountered at the very beginning of this project with Riviera timers: the code in uartfax.c from TCS211 was passing 0 as the initial dummy value for the timer duration, and our FreeNucleus version doesn't like it. The fix is the same: pass 1 as the initial dummy value instead.

CC=	arm-elf-gcc
CFLAGS=	-O2 -fno-builtin -mthumb-interwork
CPPFLAGS=-I../../inc -DRUN_INT_RAM
VPATH=	..

OBJS=	frame.o prf_func.o route.o \
	vsi_com.o vsi_drv.o vsi_mem.o vsi_mis.o vsi_ppm.o \
	vsi_pro.o vsi_sem.o vsi_tim.o vsi_trc.o

all:	${OBJS}

clean:
	rm -f *.[oa] *errs