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Forum: ARM programming with GCC/GNU tools Working with EFSL + AT91SAM7X256 Gives Linker Error


Author: Flying Arm (flying)
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Hi

I am trying to compile EFSL library from Winarm Projects page with
AT91SAM7X256 (Olimex SAM7-EX256).

My make file is as follows:

# Hey Emacs, this is a -*- makefile -*-
#
# WinARM template makefile
# by Martin Thomas, Kaiserslautern, Germany
# <eversmith@heizung-thomas.de>
#
# based on the WinAVR makefile written by Eric B. Weddington, Jörg
Wunsch, et al.
# Released to the Public Domain
# Please read the make user manual!
#
#
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make program = Download the hex file to the device
#
# (TODO: make filename.s = Just compile filename.c into the assembler
code only)
#
# To rebuild project do "make clean" then "make all".
#
# -  Thomas Schelagowski

## EFSL
# 0 - standalone: compiler with efsl sources
# 1 - use libefsl.a
EFSL_AS_LIB = 1

SHELL = cmd
#FLASH_TOOL = UVISION
FLASH_TOOL = OPENOCD

# MCU name and submodel
MCU      = arm7tdmi
SUBMDL   = AT91SAM7X256

#USE_THUMB_MODE = YES
#USE_THUMB_MODE = NO

## Create ROM-Image (final)
RUN_MODE=ROM_RUN
## Create RAM-Image (debugging)
##( not used: example does not fit in AT91SAM7S64 RAM )
#RUN_MODE=RAM_RUN

## Exception-Vector placement only supported for "ROM_RUN"
## (placement settings ignored when using "RAM_RUN")
## - Exception vectors in ROM:
#VECTOR_LOCATION=VECTORS_IN_ROM
## - Exception vectors in RAM:
VECTOR_LOCATION=VECTORS_IN_RAM

# Target file name (without extension).
TARGET = main

# List C source files here. (C dependencies are automatically
generated.)
# use file-extension c for "c-only"-files
SRC  = $(TARGET).c
SRC += dbgu.c
SRC += syscalls.c
#SRC += swi_handler_user.c
SRC += systime.c
SRC += ./common/lowlevelinit.c

## EFSL
ifeq ($(EFSL_AS_LIB),0)
SRC += ./src/efs.c ./src/plibc.c ./src/disc.c ./src/partition.c
SRC += ./src/time.c ./src/fs.c ./src/fat.c ./src/file.c ./src/dir.c
./src/ls.c
SRC += ./src/mkfs.c ./src/debug.c ./src/ioman.c ./src/ui.c
./src/extract.c
SRC += ./src/interfaces/sd.c
SRC += ./src/interfaces/efsl_dbg_printf_arm.c
SRC += ./src/interfaces/at91_spi.c
endif

# List C source files here which must be compiled in ARM-Mode.
# use file-extension c for "c-only"-files
#SRCARM  = ./common/Cstartup_SAM7.c
#SRCARM  = ./common/lowlevelinit.c

# List Assembler source files here.
# Make them always end in a capital .S.  Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =

# List Assembler source files here which must be assembled in ARM-Mode.
ASRCARM  = ./common/Cstartup.S
#ASRCARM += ./common/swi_handler.S

## Output format. (can be ihex or binary)
## (binary i.e. for openocd and SAM-BA, hex i.e. for lpc21isp and
uVision)
#FORMAT = ihex
FORMAT = binary

# Optimization level, can be [0, 1, 2, 3, s].
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
#OPT = s
OPT = 0

# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
#DEBUG = stabs
DEBUG = dwarf-2

# List any extra directories to look for include files here.
#     Each directory must be seperated by a space.
EXTRAINCDIRS = ./common
## EFSL
EXTRAINCDIRS += ./inc ./conf

# List any extra directories to look for library files here.
#     Each directory must be seperated by a space.
#EXTRA_LIBDIRS = ../arm7_efsl_0_2_4
#EXTRA_LIBDIRS = ./common
EXTRA_LIBDIRS =

## Using the Atmel AT91_lib produces warning with
## the default warning-levels.
## yes - disable these warnings; no - keep default settings
AT91LIBNOWARN = yes
#AT91LIBNOWARN = no

# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = -std=gnu99

# Place -D or -U options for C here
CDEFS =  -D$(RUN_MODE)

# Place -I options here
CINCS =

# Place -D or -U options for ASM here
ADEFS =  -D$(RUN_MODE)

ifdef VECTOR_LOCATION
CDEFS += -D$(VECTOR_LOCATION)
ADEFS += -D$(VECTOR_LOCATION)
endif

#CDEFS += -D__WinARM__ -D__WINARMSUBMDL_$(SUBMDL)__
#ADEFS += -D__WinARM__ -D__WINARMSUBMDL_$(SUBMDL)__
CDEFS += -D__WinARM__
ADEFS += -D__WinARM__

# Compiler flags.

ifeq ($(USE_THUMB_MODE),YES)
THUMB    = -mthumb
THUMB_IW = -mthumb-interwork
else
THUMB    =
THUMB_IW =
endif

#  -g*:          generate debugging information
#  -O*:          optimization level
#  -f...:        tuning, see GCC manual and avr-libc documentation
#  -Wall...:     warning level
#  -Wa,...:      tell GCC to pass this to the assembler.
#    -adhlns...: create assembler listing
#
# Flags for C and C++ (arm-elf-gcc/arm-elf-g++)
CFLAGS = -g$(DEBUG)
CFLAGS += $(CDEFS) $(CINCS)
CFLAGS += -O$(OPT)
CFLAGS += -ffunction-sections -fdata-sections
CFLAGS += -Wall -Wcast-align -Wimplicit
CFLAGS += -Wpointer-arith -Wswitch
CFLAGS += -Wredundant-decls -Wreturn-type -Wshadow -Wunused
CFLAGS += -Wa,-adhlns=$(subst $(suffix $<),.lst,$<)
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))

# flags only for C
CONLYFLAGS += -Wnested-externs
CONLYFLAGS += $(CSTANDARD)

ifneq ($(AT91LIBNOWARN),yes)
#AT91-lib warnings with:
CFLAGS += -Wcast-qual
CONLYFLAGS += -Wmissing-prototypes
CONLYFLAGS += -Wstrict-prototypes
CONLYFLAGS += -Wmissing-declarations
endif

# Assembler flags.
#  -Wa,...:    tell GCC to pass this to the assembler.
#  -ahlns:     create listing
#  -g$(DEBUG): have the assembler create line number information
ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:.S=.lst),--g$(DEBUG)


#Additional libraries.

# Extra libraries
#    Each library-name must be seperated by a space.
#    To add libxyz.a, libabc.a and libefsl.a:
#    EXTRA_LIBS = xyz abc efsl
#EXTRA_LIBS = efsl
EXTRA_LIBS =

#Support for newlibc-lpc (file: libnewlibc-lpc.a)
#NEWLIBLPC = -lnewlib-lpc

MATH_LIB = -lm

# CPLUSPLUS_LIB = -lstdc++

## EFSL
ifeq ($(EFSL_AS_LIB),1)
EXTRA_LIBDIRS += ./
# extra libraries ( to add libxyz.a and libabc.a: -lxyz -labc )
EXTRA_LIBS += efsl
endif

# Linker flags.
#  -Wl,...:     tell GCC to pass this to linker.
#    -Map:      create map file
#    --cref:    add cross reference to  map file
LDFLAGS = -nostartfiles -Wl,-Map=$(TARGET).map,--cref,--gc-sections
LDFLAGS += -lc
LDFLAGS += $(NEWLIBLPC) $(MATH_LIB)
LDFLAGS += -lc -lgcc
LDFLAGS += $(patsubst %,-L%,$(EXTRA_LIBDIRS))
LDFLAGS += $(patsubst %,-l%,$(EXTRA_LIBS))

# Set Linker-Script Depending On Selected Memory and Controller
ifeq ($(RUN_MODE),RAM_RUN)
LDFLAGS +=-T./common/$(SUBMDL)-RAM.ld
else
LDFLAGS +=-T./common/$(SUBMDL)-ROM.ld
endif


##
------------------------------------------------------------------------ 
---
## Flash-Programming support using lpc21isp by Martin Maurer
## only for Philips LPC and Analog ADuC ARMs
##
## Settings and variables:
##LPC21ISP = lpc21isp
#LPC21ISP = lpc21isp
#LPC21ISP_PORT = com1
#LPC21ISP_BAUD = 38400
#LPC21ISP_XTAL = 12000
#LPC21ISP_FLASHFILE = $(TARGET).hex
## verbose output:
##LPC21ISP_DEBUG = -debug
## enter bootloader via RS232 DTR/RTS (only if hardware supports this
## feature - see Philips AppNote):
#LPC21ISP_CONTROL = -control
##
------------------------------------------------------------------------ 
---


# Define directories, if needed.
## DIRARM = c:/WinARM/
## DIRARMBIN = $(DIRAVR)/bin/
## DIRAVRUTILS = $(DIRAVR)/utils/bin/

# Define programs and commands.
CC = arm-elf-gcc
#CPP = arm-elf-g++
OBJCOPY = arm-elf-objcopy
OBJDUMP = arm-elf-objdump
SIZE = arm-elf-size
NM = arm-elf-nm
REMOVE = rm -f
COPY = cp

# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = "-------- begin (mode: $(RUN_MODE)) --------"
MSG_END = --------  end  --------
MSG_SIZE_BEFORE = Size before:
MSG_SIZE_AFTER = Size after:
MSG_FLASH = Creating load file for Flash:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling C:
MSG_COMPILING_ARM = "Compiling C (ARM-only):"
MSG_COMPILINGCPP = Compiling C++:
MSG_COMPILINGCPP_ARM = "Compiling C++ (ARM-only):"
MSG_ASSEMBLING = Assembling:
MSG_ASSEMBLING_ARM = "Assembling (ARM-only):"
MSG_CLEANING = Cleaning project:
MSG_FORMATERROR = Can not handle output-format
MSG_LPC21_RESETREMINDER = You may have to bring the target in
bootloader-mode now.

# Define all object files.
COBJ      = $(SRC:.c=.o)
AOBJ      = $(ASRC:.S=.o)
COBJARM   = $(SRCARM:.c=.o)
AOBJARM   = $(ASRCARM:.S=.o)

# Define all listing files.
LST = $(ASRC:.S=.lst) $(ASRCARM:.S=.lst) $(SRC:.c=.lst)
$(SRCARM:.c=.lst)
#LST += $(CPPSRC:.cpp=.lst) $(CPPSRCARM:.cpp=.lst)

# Compiler flags to generate dependency files.
### GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d
GENDEPFLAGS = -MD -MP -MF ./dep/$(@F).d

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS  = -mcpu=$(MCU) $(THUMB_IW) -I. $(CFLAGS) $(GENDEPFLAGS)
ALL_ASFLAGS = -mcpu=$(MCU) $(THUMB_IW) -I. -x assembler-with-cpp
$(ASFLAGS)


# Default target.
all: begin gccversion sizebefore build sizeafter finished end

ifeq ($(FORMAT),ihex)
build: elf hex lss sym
hex: $(TARGET).hex
IMGEXT=hex
else
ifeq ($(FORMAT),binary)
build: elf bin lss sym
bin: $(TARGET).bin
IMGEXT=bin
else
$(error "$(MSG_FORMATERROR) $(FORMAT)")
endif
endif

elf: $(TARGET).elf
lss: $(TARGET).lss
sym: $(TARGET).sym

# Eye candy.
begin:
  @echo
  @echo $(MSG_BEGIN)

finished:
  @echo $(MSG_ERRORS_NONE)

end:
  @echo $(MSG_END)
  @echo


# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) -A $(TARGET).elf
sizebefore:
#  @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE);
$(ELFSIZE); echo; fi

sizeafter:
#  @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER);
$(ELFSIZE); echo; fi


# Display compiler version information.
gccversion :
  @$(CC) --version


ifeq ($(FLASH_TOOL),OPENOCD)
# Program the device with Dominic Rath's OPENOCD in "batch-mode", needs
cfg and "reset-script".
program: $(TARGET).$(IMGEXT)
  @echo
  @echo "Programming with OPENOCD"
#  'C:\Program Files\openocd-2006re115\bin\'openocd-ftd2xx.exe -f
'C:\Program
Files\openocd-2006re115\bin\'at91sam7x256-armusbocd-flash-program.cfg
  'C:\Program Files\openocd-2006re115\bin\'openocd-ftd2xx.exe -f
'C:\Program
Files\openocd-2006re115\bin\'at91sam7x256-armusbocd-debugger-program.cfg
endif


# Create final output file (.hex) from ELF output file.
%.hex: %.elf
  @echo
  @echo $(MSG_FLASH) $@
  $(OBJCOPY) -O $(FORMAT) $< $@

# Create final output file (.bin) from ELF output file.
%.bin: %.elf
  @echo
  @echo $(MSG_FLASH) $@
  $(OBJCOPY) -O $(FORMAT) $< $@


# Create extended listing file from ELF output file.
# testing: option -C
%.lss: %.elf
  @echo
  @echo $(MSG_EXTENDED_LISTING) $@
  $(OBJDUMP) -h -S -C $< > $@


# Create a symbol table from ELF output file.
%.sym: %.elf
  @echo
  @echo $(MSG_SYMBOL_TABLE) $@
  $(NM) -n $< > $@


# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(AOBJARM) $(AOBJ) $(COBJARM) $(COBJ) $(CPPOBJ) $(CPPOBJARM)
%.elf:  $(AOBJARM) $(AOBJ) $(COBJARM) $(COBJ) $(CPPOBJ) $(CPPOBJARM)
  @echo
  @echo $(MSG_LINKING) $@
  $(CC) $(THUMB) $(ALL_CFLAGS) $(AOBJARM) $(AOBJ) $(COBJARM) $(COBJ)
$(CPPOBJ) $(CPPOBJARM) --output $@ $(LDFLAGS)
#  $(CPP) $(THUMB) $(ALL_CFLAGS) $(AOBJARM) $(AOBJ) $(COBJARM) $(COBJ)
$(CPPOBJ) $(CPPOBJARM) --output $@ $(LDFLAGS)

# Compile: create object files from C source files. ARM/Thumb
$(COBJ) : %.o : %.c
  @echo
  @echo $(MSG_COMPILING) $<
  $(CC) -c $(THUMB) $(ALL_CFLAGS) $(CONLYFLAGS) $< -o $@

# Compile: create object files from C source files. ARM-only
$(COBJARM) : %.o : %.c
  @echo
  @echo $(MSG_COMPILING_ARM) $<
  $(CC) -c $(ALL_CFLAGS) $(CONLYFLAGS) $< -o $@

## Compile: create object files from C++ source files. ARM/Thumb
#$(CPPOBJ) : %.o : %.cpp
#  @echo
#  @echo $(MSG_COMPILINGCPP) $<
#  $(CPP) -c $(THUMB) $(ALL_CFLAGS) $(CPPFLAGS) $< -o $@
#
## Compile: create object files from C++ source files. ARM-only
#$(CPPOBJARM) : %.o : %.cpp
#  @echo
#  @echo $(MSG_COMPILINGCPP_ARM) $<
#  $(CPP) -c $(ALL_CFLAGS) $(CPPFLAGS) $< -o $@


# Compile: create assembler files from C source files. ARM/Thumb
## does not work - TODO - hints welcome
##$(COBJ) : %.s : %.c
##  $(CC) $(THUMB) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files. ARM/Thumb
$(AOBJ) : %.o : %.S
  @echo
  @echo $(MSG_ASSEMBLING) $<
  $(CC) -c $(THUMB) $(ALL_ASFLAGS) $< -o $@


# Assemble: create object files from assembler source files. ARM-only
$(AOBJARM) : %.o : %.S
  @echo
  @echo $(MSG_ASSEMBLING_ARM) $<
  $(CC) -c $(ALL_ASFLAGS) $< -o $@


# Target: clean project.
clean: begin clean_list finished end


clean_list :
  @echo
  @echo $(MSG_CLEANING)
  $(REMOVE) $(TARGET).hex
  $(REMOVE) $(TARGET).bin
  $(REMOVE) $(TARGET).obj
  $(REMOVE) $(TARGET).elf
  $(REMOVE) $(TARGET).map
  $(REMOVE) $(TARGET).obj
  $(REMOVE) $(TARGET).a90
  $(REMOVE) $(TARGET).sym
  $(REMOVE) $(TARGET).lnk
  $(REMOVE) $(TARGET).lss
  $(REMOVE) $(COBJ)
  $(REMOVE) $(CPPOBJ)
  $(REMOVE) $(AOBJ)
  $(REMOVE) $(COBJARM)
  $(REMOVE) $(CPPOBJARM)
  $(REMOVE) $(AOBJARM)
  $(REMOVE) $(LST)
  $(REMOVE) $(SRC:.c=.s)
  $(REMOVE) $(SRC:.c=.d)
  $(REMOVE) $(SRCARM:.c=.s)
  $(REMOVE) $(SRCARM:.c=.d)
  $(REMOVE) $(CPPSRC:.cpp=.s)
  $(REMOVE) $(CPPSRC:.cpp=.d)
  $(REMOVE) $(CPPSRCARM:.cpp=.s)
  $(REMOVE) $(CPPSRCARM:.cpp=.d)
  $(REMOVE) .dep/*


# Include the dependency files.
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)


# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex bin lss sym clean clean_list program

When i buid my code it gives the following errors:

ld: c:/program
files/yagarto/bin/../lib/gcc/arm-elf/4.1.1/../../../../arm-elf/lib\libc. 
a(memcpy.o)(memcpy):
warning: interworking not enabled.    EFSL_090507  line 0  1179130695742
2398
ld: C:/Program
Files/yagarto/lib/gcc/arm-elf/4.1.1\libgcc.a(_divsi3.o)(__divsi3):
warning: interworking not enabled.    EFSL_090507  line 0  1179130695742
2384

ld: Warning: C:/Program
Files/yagarto/lib/gcc/arm-elf/4.1.1\libgcc.a(_divsi3.o) does not support
interworking, whereas main.elf does    EFSL_090507  line 0
1179130695742  2382


Anyone of you have any idea how to fix this error?

Regards
Flying

Author: Martin Thomas (mthomas) (Moderator)
Posted on:

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Rajitha Dandu wrote:
> Hi
>
> I am trying to compile EFSL library from Winarm Projects page with
> AT91SAM7X256 (Olimex SAM7-EX256).
>
> My make file is as follows:
> [...]

There are various modifications in your makefile comparted to the one
that I provide with the example. So I can not comment too much on this.
Try to create a diff-file or use the Windows "FC". I have also not
tested the code with the GNU arm-elf toolchain in Yagarto but it should
work with it too. Just some remarks:

- Why are both commented out?
#USE_THUMB_MODE = YES
#USE_THUMB_MODE = NO
Sine it seems that you want "ARM-only" set USE_THUMB_MODE=NO

- Is the library build with thumb and thumb-interwork enabled as
demonstrated in the makefiles which come with the 0.2.9 RCx package?
This will not work if you disable thumb-interwork in your application
which uses the lib. This happens if you set USE_THUMB_MODE=NO since I
"bundle" -mthumb and -mthumb-interwork. The option to compile some parts
in ARM-only mode is still available thru the SRCARM list. If you don't
enable thumb-interwork for the application you should also build the
libefsl.a without -mthumb -mthumb-interwork.

Martin Thomas

Author: Flying Arm (flying)
Posted on:

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Martin Thomas wrote:
> Rajitha Dandu wrote:
>> Hi
>>
>> I am trying to compile EFSL library from Winarm Projects page with
>> AT91SAM7X256 (Olimex SAM7-EX256).
>>
>> My make file is as follows:
>> [...]
>
> There are various modifications in your makefile comparted to the one
> that I provide with the example. So I can not comment too much on this.
> Try to create a diff-file or use the Windows "FC". I have also not
> tested the code with the GNU arm-elf toolchain in Yagarto but it should
> work with it too. Just some remarks:
>
> - Why are both commented out?
> #USE_THUMB_MODE = YES
> #USE_THUMB_MODE = NO
> Sine it seems that you want "ARM-only" set USE_THUMB_MODE=NO

When to use Thumb Mode and when to use ARM mode where can i find
information on this?

> - Is the library build with thumb and thumb-interwork enabled as
> demonstrated in the makefiles which come with the 0.2.9 RCx package?

I downloaded the source files from the page:
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm...

But here the version mentioned was efsl Ver. 0.2.8

Where can i find 0.2.9 version.


> This will not work if you disable thumb-interwork in your application
> which uses the lib. This happens if you set USE_THUMB_MODE=NO since I
> "bundle" -mthumb and -mthumb-interwork. The option to compile some parts
> in ARM-only mode is still available thru the SRCARM list. If you don't
> enable thumb-interwork for the application you should also build the
> libefsl.a without -mthumb -mthumb-interwork.


I enabled Thum mode I mean in make file I changed to

USE_THUMB_MODE = YES

No when i buid project it doesn't give any error.

But when i say clean project it gives me following warnings:

warning: #warning "inofficial CSD-read patch active
sd_Resp8b->if_spiSend"  EFSL_090507/src/interfaces  sd.c  line 321
1179138037896  3527

In all .c files where there is a warning declaration like this.

Also

warning: implicit declaration of function 'AT91F_US_GetChar'
EFSL_090507  syscalls.c  line 35  1179138037896  3509

Regards
Flying

Author: Martin Thomas (mthomas) (Moderator)
Posted on:

Rate this post
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Rajitha Dandu wrote:
> Martin Thomas wrote:
> When to use Thumb Mode and when to use ARM mode where can i find
> information on this?

Visit arm.com and read some of the available documents.

>
>> - Is the library build with thumb and thumb-interwork enabled as
>> demonstrated in the makefiles which come with the 0.2.9 RCx package?
>
> I downloaded the source files from the page:
> http://www.siwawi.arubi.uni-kl.de/avr_projects/arm...
>
> But here the version mentioned was efsl Ver. 0.2.8
>
> Where can i find 0.2.9 version.

On the same page a few lines down.

>> This will not work if you disable thumb-interwork in your application
>> which uses the lib. This happens if you set USE_THUMB_MODE=NO since I
>> "bundle" -mthumb and -mthumb-interwork. The option to compile some parts
>> in ARM-only mode is still available thru the SRCARM list. If you don't
>> enable thumb-interwork for the application you should also build the
>> libefsl.a without -mthumb -mthumb-interwork.
>
>
> I enabled Thum mode I mean in make file I changed to
>
> USE_THUMB_MODE = YES
>
> No when i buid project it doesn't give any error.
>
> But when i say clean project it gives me following warnings:
>
> warning: #warning "inofficial CSD-read patch active
> sd_Resp8b->if_spiSend"  EFSL_090507/src/interfaces  sd.c  line 321
> 1179138037896  3527

Just an information.

> In all .c files where there is a warning declaration like this.
>
> Also
>
> warning: implicit declaration of function 'AT91F_US_GetChar'
> EFSL_090507  syscalls.c  line 35  1179138037896  3509

This function is used to pass characters sent from stdio-functions thru
the syscalls-interface to the DBGU.

Martin

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