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annotate Makefile.avr @ 10:f0b4314b91ec

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Fix for dual UART devices.
author Daniel O'Connor <darius@dons.net.au>
date Sat, 01 Jan 2011 19:43:34 +1030
parents 5f21a1c8ca06
children 4e10d1eef9a5
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1 #
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5f21a1c8ca06 Remove $Id$ and add a brief comment.
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2 # Helper makefile to build AVR sources
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3 #
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4
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5 .SUFFIXES: .hex .out .c .o .elf .dmp .s
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6
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7 # Otherwise we get -march=foo
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8 NO_CPU_CFLAGS=
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9 _CPUCFLAGS=
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10
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11 # Programs
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12 AS=avr-as
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13 CC=avr-gcc
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14 OBJCOPY=avr-objcopy
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15 OBJDUMP=avr-objdump
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16
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17 # Tell as to generate listings
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18 CPPFLAGS+=-Wa,-adhlmsn=${<:T:S/.c/.lst/}
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20 MCU?=notset
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21 CFLAGS+=-mmcu=${MCU}
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22
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23 LDFLAGS+=-Wl,-Map=${PROG}.map,--cref
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24 LDFLAGS+=${LDADD}
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25
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26 RM=rm -f
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27
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28 PROGRAMMER=avrdude
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29 PROGTYPE?=alf
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30 # Need the -B 1 or it is very slow. For slow clocks (eg factory fused) -B 10 works
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31 PROGEXTRA?=-B 1
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32
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33 .if ${PROGTYPE} != "dragon_isp" && ${PROGTYPE} != "dragon_jtag"
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34 PROGEXITS?=vcc,noreset
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35 .endif
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36
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37 .if defined(PROGEXITS) && ${PROGEXITS} != ""
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38 _PROGEXITS=-E ${PROGEXITS}
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39 .endif
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40 .if defined(PROGPORT) && ${PROGPORT} != ""
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41 _PROGPORT=-P ${PROGPORT}
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42 .endif
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43
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44 PROGOPTS?=-p ${PART} -c ${PROGTYPE} ${_PROGPORT} ${_PROGEXITS} -q ${PROGEXTRA}
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46 .if !defined(SRCS)
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47 SRCS= ${PROG}.c
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48 .endif
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49
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50 OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
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51
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52 all: ${PROG}.hex ${PROG}.dmp
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54 .c.o:
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55 ${CC} ${CFLAGS} ${CPPFLAGS} -c ${.IMPSRC} -o ${.PREFIX}.o
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57 ${PROG}.elf: ${OBJS}
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58 ${CC} ${CFLAGS} ${LDFLAGS} -g ${OBJS} -o ${PROG}.elf ${LDADD}
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60 .elf.hex:
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61 ${OBJCOPY} -j .text -j .data -j .bss -j .noinit -O ihex $> $@
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63 .elf.dmp:
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64 ${OBJDUMP} -S ${.IMPSRC} > ${.PREFIX}.dmp
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66 clean:
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67 ${RM} ${PROG}.hex ${PROG}.out ${PROG}.elf ${PROG}.map ${OBJS} ${OBJS:S/.o/.lst/} ${PROG}.dmp
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69 prog: all
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70 ${PROGRAMMER} -U flash:w:${PROG}.hex ${PROGOPTS}
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