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=	gcc
CFLAGS=	-O2 -I../include
PROGS=	fc-sendsp
INSTBIN=/usr/local/bin

SENDSP_OBJS=	rvifsend.o sendsp.o

all:	${PROGS}

fc-sendsp:	${SENDSP_OBJS}
	${CC} ${CFLAGS} -o $@ ${SENDSP_OBJS}

install:	${PROGS}
	mkdir -p ${INSTBIN}
	install -c ${PROGS} ${INSTBIN}

clean:
	rm -f *.o *.out *errs ${PROGS}