annotate target-utils/pirexplore/Makefile @ 497:74610c4f10f7

target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 25 May 2019 20:44:05 +0000
parents 58d3a0634272
children bfddfecc52b2
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1 CC= arm-elf-gcc
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2 CFLAGS= -Os -fno-builtin
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3 CPPFLAGS=-I../include
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4 LD= arm-elf-ld
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5 OBJCOPY=arm-elf-objcopy
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7 INSTDIR=/opt/freecalypso/target-bin
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9 PROG= pirexplore
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10 OBJS= crt0.o cmdtab.o ffsparam.o flashid.o lcd.o main.o mygetchar.o rtc.o
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11 LIBS= ../libtiffs/libtiffs.a ../libcommon/libcommon.a \
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12 ../libprintf/libprintf.a ../libbase/libbase.a ../libc/libc.a
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13 LIBGCC= `${CC} -print-file-name=libgcc.a`
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14 LDS= ../env/iram.lds
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16 all: ${PROG}.srec
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18 crt0.S:
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19 ln -s ../env/crt0.S .
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21 ${PROG}.elf: ${OBJS} ${LIBS} ${LDS}
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22 ${LD} -N --defsym Base_addr=0x800750 --defsym stack_bottom=0x87FFFC \
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23 -T ${LDS} -o $@ ${OBJS} ${LIBS} ${LIBGCC}
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25 ${PROG}.srec: ${PROG}.elf
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26 ${OBJCOPY} -O srec --srec-forceS3 --srec-len=30 $< $@
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28 install:
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29 mkdir -p ${INSTDIR}
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30 install -c -m 644 ${PROG}.srec ${INSTDIR}
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32 clean:
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33 rm -f *.o *errs *core *.elf *.bin *.srec crt0.S
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35 FRC: