When you say Serial, do you mean USB or RS232? I have not used gnoduino, but with had no problem compiling and uploading to Arduino Mega2560 over USB on Arch using avr-gccand avrdude.
This is the avrdude settings I use: avrdude -c stk500v2 -p atmega2560 -b 115200 -P /dev/ttyACM0 -U flash:w:program-file.hex (You will need the root privileges for this). Attached the makefile if it helps you to get an idea. Sudaraka Wijesinghe On 07/17/2012 01:43 PM, andrea crotti wrote: > I'm trying to use my arduino mega2560 with arch but there's no way to > get it working yet.. > I installed the arduino 1.0.1-1, and everything seems to work, until I > try to use the Serial, when I get (compiling from gnoduino): > > avr:5 architecture of input file > `/tmp/build1342512569.47XizyI/core.a(HardwareSerial.cpp.o)' is > incompatible with avr:6 output > collect2: error: ld returned 1 exit status > > I saw about a bug in avr-gcc but it should have been fixed long time > ago, and it's probably not the same thing... > Anyone got it working? >
# Makefile: Arduino Atmega328p
# Program
PROG = 01
# Device
MCU = atmega2560
F_CPU = 16000000UL
# Connection
USB = ttyACM0
#BAUD_RATE = 57600
BAUD_RATE = 115200
# Compiler
CC = avr-gcc
CFLAGS = -Wall -mmcu=$(MCU) -DF_CPU=$(F_CPU)
# Linker
OBJCPY = avr-objcopy
OBJCPYFLAGS = -O ihex -R .eeprom
# Loader
LOADER = sudo avrdude
#LOADERFLAGS = -c arduino -p $(MCU) -b $(BAUD_RATE) -P /dev/$(USB)
LOADERFLAGS = -c stk500v2 -p $(MCU) -b $(BAUD_RATE) -P /dev/$(USB)
all: $(PROG).hex
$(LOADER) $(LOADERFLAGS) -U flash:w:$<
%.hex: %.o
$(OBJCPY) $(OBJCPYFLAGS) $< $@
.c.o:
$(CC) $(CFLAGS) -o $*.o $<
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