FreeCalypso > hg > fc-magnetite
view helpers/Makefile @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | a490b0466fed |
children |
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CC= gcc CFLAGS= -O2 PROGS= build-date cfg-hdr-gen makeline mk-flash-script mokosrec2bin srec4ram \ str2ind-ver all: ${PROGS} build-date: build-date.c ${CC} ${CFLAGS} -o $@ $@.c cfg-hdr-gen: cfg-hdr-gen.c ${CC} ${CFLAGS} -o $@ $@.c makeline: makeline.c ${CC} ${CFLAGS} -o $@ $@.c mk-flash-script: mk-flash-script.c ${CC} ${CFLAGS} -o $@ $@.c mokosrec2bin: mokosrec2bin.c ${CC} ${CFLAGS} -o $@ $@.c srec4ram: srec4ram.c ${CC} ${CFLAGS} -o $@ $@.c str2ind-ver: str2ind-ver.c ${CC} ${CFLAGS} -o $@ $@.c clean: rm -f ${PROGS}