diff --git a/boards/arduino-duemilanove/Makefile.include b/boards/arduino-duemilanove/Makefile.include
index dd282db94f1b..b736cb592adb 100644
--- a/boards/arduino-duemilanove/Makefile.include
+++ b/boards/arduino-duemilanove/Makefile.include
@@ -3,16 +3,19 @@ export CPU = atmega328p
 
 USEMODULE += boards_common_arduino-atmega
 
-#export needed for flash rule
-export PORT_LINUX ?= /dev/ttyUSB0
-export PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
-export PROGRAMMER_SPEED ?= 57600
+# configure the terminal program
+PORT_LINUX  ?= /dev/ttyUSB0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+BAUD        ?= 9600
 
-export FFLAGS += -p m328p
-
-# PROGRAMMER defaults to arduino which is the internal flasher via USB. Can be
-# overridden for debugging (which requires changes that require to use an ISP)
-export PROGRAMMER ?= arduino
+# PROGRAMMER defaults to arduino which is the internal flasher via USB
+# using avrdude. Can be overridden for debugging (which requires changes
+# that require to use an ISP)
+PROGRAMMER ?= arduino
+# set mcu model for avrdude
+FFLAGS += -p m328p
+# configure programmer speed in baud
+FFLAGS_EXTRA += -b 57600
 
 BOOTLOADER_SIZE ?= 2K
 ROM_RESERVED ?= $(BOOTLOADER_SIZE)
diff --git a/boards/arduino-mega2560/Makefile.include b/boards/arduino-mega2560/Makefile.include
index 3a7a4aafd8c4..676e8dc12d09 100644
--- a/boards/arduino-mega2560/Makefile.include
+++ b/boards/arduino-mega2560/Makefile.include
@@ -3,16 +3,19 @@ export CPU = atmega2560
 
 USEMODULE += boards_common_arduino-atmega
 
-#export needed for flash rule
-export PORT_LINUX ?= /dev/ttyACM0
-export PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
-export PROGRAMMER_SPEED ?= 115200
+# configure the terminal program
+PORT_LINUX  ?= /dev/ttyACM0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+BAUD        ?= 9600
 
-export FFLAGS += -p m2560
-
-# PROGRAMMER defaults to stk500v2 which is the internal flasher via USB. Can be
-# overridden for debugging (which requires changes that require to use an ISP)
-export PROGRAMMER ?= stk500v2
+# PROGRAMMER defaults to stk500v2 which is the internal flasher via USB
+# using avrdude. Can be overridden for debugging (which requires changes
+# that require to use an ISP)
+PROGRAMMER ?= stk500v2
+# set mcu model for avrdude
+FFLAGS += -p m2560
+# configure programmer speed in baud
+FFLAGS_EXTRA += -b 115200
 
 BOOTLOADER_SIZE ?= 8K
 ROM_RESERVED ?= $(BOOTLOADER_SIZE)
diff --git a/boards/arduino-uno/Makefile.include b/boards/arduino-uno/Makefile.include
index 049373784ced..6e0f63b778fe 100644
--- a/boards/arduino-uno/Makefile.include
+++ b/boards/arduino-uno/Makefile.include
@@ -3,16 +3,19 @@ export CPU = atmega328p
 
 USEMODULE += boards_common_arduino-atmega
 
-# export needed for flash rule
-export PORT_LINUX ?= /dev/ttyACM0
-export PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
-export PROGRAMMER_SPEED ?= 115200
+# configure the terminal program
+PORT_LINUX  ?= /dev/ttyACM0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+BAUD        ?= 9600
 
-export FFLAGS += -p m328p
-
-# PROGRAMMER defaults to arduino which is the internal flasher via USB. Can be
-# overridden for debugging (which requires changes that require to use an ISP)
-export PROGRAMMER ?= arduino
+# PROGRAMMER defaults to stk500v2 which is the internal flasher via USB
+# using avrdude. Can be overridden for debugging (which requires changes
+# that require to use an ISP)
+PROGRAMMER ?= arduino
+# set mcu model for avrdude
+FFLAGS += -p m328p
+# configure programmer speed in baud
+FFLAGS_EXTRA += -b 115200
 
 BOOTLOADER_SIZE ?= 512
 ROM_RESERVED ?= $(BOOTLOADER_SIZE)
diff --git a/boards/common/arduino-atmega/Makefile.features b/boards/common/arduino-atmega/Makefile.features
index ec1f08f1764c..d47ec4565fab 100644
--- a/boards/common/arduino-atmega/Makefile.features
+++ b/boards/common/arduino-atmega/Makefile.features
@@ -11,6 +11,3 @@ ifeq (,$(filter jiminy-mega256rfr2,$(BOARD)))
   FEATURES_PROVIDED += arduino
   FEATURES_PROVIDED += periph_pwm
 endif
-
-# The board MPU family (used for grouping by the CI system)
-FEATURES_MCU_GROUP = avr8
diff --git a/boards/common/arduino-atmega/Makefile.include b/boards/common/arduino-atmega/Makefile.include
index 9c90f6b8c1c5..09b7483db349 100644
--- a/boards/common/arduino-atmega/Makefile.include
+++ b/boards/common/arduino-atmega/Makefile.include
@@ -3,19 +3,10 @@ include $(RIOTBOARD)/common/arduino-atmega/Makefile.dep
 
 INCLUDES += -I$(RIOTBOARD)/common/arduino-atmega/include
 
-# refine serial port information
-export BAUD ?= 9600
 include $(RIOTMAKE)/tools/serial.inc.mk
 
-export FLASHER = avrdude
-export DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
-export DEBUGSERVER_PORT = 4242
-export DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
-export DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
-export DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
-export DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
+# Disable auto erase for flash and avoid error if signature doesn't match
+FFLAGS_EXTRA += -F -D
 
-export PROGRAMMER_FLAGS = -P $(PORT) -b $(PROGRAMMER_SPEED)
-
-OFLAGS += -j .text -j .data
-export FFLAGS += -c $(PROGRAMMER) $(PROGRAMMER_FLAGS) -F -D -U flash:w:$(HEXFILE)
+# include avrdude flashing tool
+include $(RIOTMAKE)/tools/avrdude.inc.mk
diff --git a/boards/jiminy-mega256rfr2/Makefile.features b/boards/jiminy-mega256rfr2/Makefile.features
index 358ba448f54b..5ad360ac35c9 100644
--- a/boards/jiminy-mega256rfr2/Makefile.features
+++ b/boards/jiminy-mega256rfr2/Makefile.features
@@ -1,10 +1,8 @@
+# This board is based on an atmega CPU, thus import the features from it
 include $(RIOTBOARD)/common/arduino-atmega/Makefile.features
 
 # Put defined MCU peripherals here (in alphabetical order)
 # Peripherals are defined in common/arduino-atmega/Makefile.features
 # Add only additional Peripherals
 
-# The board MPU family (used for grouping by the CI system)
-FEATURES_MCU_GROUP = avr6
-
-include $(RIOTCPU)/atmega256rfr2/Makefile.features
+-include $(RIOTCPU)/atmega256rfr2/Makefile.features
diff --git a/boards/jiminy-mega256rfr2/Makefile.include b/boards/jiminy-mega256rfr2/Makefile.include
index e3def21be4da..a1b36bccd801 100644
--- a/boards/jiminy-mega256rfr2/Makefile.include
+++ b/boards/jiminy-mega256rfr2/Makefile.include
@@ -1,28 +1,30 @@
 # define the cpu used by the jiminy board
 export CPU = atmega256rfr2
 
-# export needed for flash rule
-export PORT_LINUX ?= /dev/ttyACM0
-export PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
-
-# Serial Baud rate for Ffasher is configured to 500kBaud
-# see /usr/include/asm-generic/termbits.h for availabel baudrates on your linux system
-export PROGRAMMER_SPEED ?= 0010005
-
-export FFLAGS += -p atmega256rfr2
-
+# configure the terminal program
+PORT_LINUX  ?= /dev/ttyACM0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
 # refine serial port information for pyterm
 # For 8MHz F_CPU following Baudrate have good error rates
 #  76923
 #  38400
-export BAUD = 38400
+BAUD        ?= 38400
+include $(RIOTMAKE)/tools/serial.inc.mk
 
-# PROGRAMMER defaults to arduino which is the internal flasher via USB. Can be
-# overridden for debugging (which requires changes that require to use an ISP)
-export PROGRAMMER ?= wiring
+# PROGRAMMER defaults to wiring which is the internal flasher via USB
+# using avrdude. Can be overridden for debugging (which requires changes
+# that require to use an ISP)
+PROGRAMMER ?= wiring
+# set mcu model for avrdude (mandatory)
+FFLAGS += -p atmega256rfr2
+# Serial Baud rate for flasher is configured to 500kBaud
+# see /usr/include/asm-generic/termbits.h for availabel baudrates on your linux system
+FFLAGS_EXTRA += -b 0010005
+# avoid error if mcu signature doesn't match
+FFLAGS_EXTRA += -F
 
 # From current fuse configuration
 BOOTLOADER_SIZE ?= 4K
 ROM_RESERVED ?= $(BOOTLOADER_SIZE)
 
-include $(RIOTBOARD)/common/arduino-atmega/Makefile.include
+include $(RIOTMAKE)/tools/avrdude.inc.mk
diff --git a/boards/mega-xplained/Makefile.features b/boards/mega-xplained/Makefile.features
index 7a8d6d41bfcc..56b30867786e 100644
--- a/boards/mega-xplained/Makefile.features
+++ b/boards/mega-xplained/Makefile.features
@@ -8,7 +8,4 @@ FEATURES_PROVIDED += periph_uart
 
 # Various other features (if any)
 
-# The board MPU family (used for grouping by the CI system)
-FEATURES_MCU_GROUP = avr8
-
-include $(RIOTCPU)/atmega1284p/Makefile.features
+-include $(RIOTCPU)/atmega1284p/Makefile.features
diff --git a/boards/mega-xplained/Makefile.include b/boards/mega-xplained/Makefile.include
index 9a8d7e5f4fc0..891fb8f5cff7 100644
--- a/boards/mega-xplained/Makefile.include
+++ b/boards/mega-xplained/Makefile.include
@@ -7,23 +7,22 @@ BOOTLOADER_SIZE ?= 4K
 ROM_RESERVED ?= $(BOOTLOADER_SIZE)
 
 # configure the terminal program
-export PORT_LINUX  ?= /dev/ttyACM0
-export PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbserial*)))
-export BAUD        ?= 9600
+PORT_LINUX  ?= /dev/ttyACM0
+PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbmodem*)))
+BAUD        ?= 9600
 include $(RIOTMAKE)/tools/serial.inc.mk
 
-export FLASHER = avrdude
-export DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
-export DEBUGSERVER_PORT = 4242
-export DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
-export DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
-export DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
-export DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
+# PROGRAMMER defaults to the external flasher Bus Pirate ISP using avrdude.
+PROGRAMMER  ?= buspirate
+# set mcu model for avrdude
+FFLAGS += -p m1284p
+# set serial port for avrdude with buspirate
+ifeq ($(OS),Linux)
+  AVRDUDE_PORT ?= /dev/ttyUSB0
+else ifeq ($(OS),Darwin)
+  AVRDUDE_PORT ?= $(firstword $(sort $(wildcard /dev/tty.usbserial*)))
+endif
+# avoid error if mcu signature doesn't match
+FFLAGS_EXTRA += -F
 
-# PROGRAMMER defaults to the Bus Pirate ISP
-export PROGRAMMER ?= buspirate
-
-export PROGRAMMER_FLAGS = -P /dev/ttyUSB0
-
-OFLAGS += -j .text -j .data
-export FFLAGS += -p m1284p -c $(PROGRAMMER) $(PROGRAMMER_FLAGS) -F -U flash:w:$(HEXFILE)
+include $(RIOTMAKE)/tools/avrdude.inc.mk
diff --git a/boards/waspmote-pro/Makefile.features b/boards/waspmote-pro/Makefile.features
index c4cd23b26486..86895b34bbf5 100644
--- a/boards/waspmote-pro/Makefile.features
+++ b/boards/waspmote-pro/Makefile.features
@@ -8,7 +8,4 @@ FEATURES_PROVIDED += periph_uart
 
 # Various other features (if any)
 
-# The board MPU family (used for grouping by the CI system)
-FEATURES_MCU_GROUP = avr8
-
-include $(RIOTCPU)/atmega1281/Makefile.features
+-include $(RIOTCPU)/atmega1281/Makefile.features
diff --git a/boards/waspmote-pro/Makefile.include b/boards/waspmote-pro/Makefile.include
index a2cd81ebc285..6a098e05e6a9 100644
--- a/boards/waspmote-pro/Makefile.include
+++ b/boards/waspmote-pro/Makefile.include
@@ -13,31 +13,15 @@ PORT_DARWIN ?= $(firstword $(sort $(wildcard /dev/tty.usbserial*)))
 BAUD        ?= 9600
 include $(RIOTMAKE)/tools/serial.inc.mk
 
-# define tools used for building the project
-export PREFIX = avr-
-export CC = $(PREFIX)gcc
-export CXX = $(PREFIX)c++
-export AR = $(PREFIX)ar
-export AS = $(PREFIX)as
-export LINK = $(PREFIX)gcc
-export SIZE = $(PREFIX)size
-export OBJCOPY = $(PREFIX)objcopy
+# PROGRAMMER defaults to stk500v1 which is the internal flasher via USB
+# using avrdude. Can be overridden for debugging (which requires changes
+# that require to use an ISP)
+PROGRAMMER ?= stk500v1
+# set mcu model for avrdude
+FFLAGS += -p m1281
+# configure programmer speed in baud
+FFLAGS_EXTRA += -b 115200
+# avoid error if mcu signature doesn't match
+FFLAGS_EXTRA += -F
 
-export FLASHER = avrdude
-export DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
-export DEBUGSERVER_PORT = 4242
-export DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
-export DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
-export DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
-export DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
-
-# PROGRAMMER defaults to stk500v1 which is the internal flasher via USB. Can be
-# overridden for debugging (which requires changes that require to use an ISP)
-export PROGRAMMER ?= stk500v1
-
-ifeq ($(PROGRAMMER), stk500v1)
-  export PROGRAMMER_FLAGS = -P $(PORT) -b 115200
-endif
-
-OFLAGS += -j .text -j .data
-export FFLAGS += -p m1281 -c $(PROGRAMMER) $(PROGRAMMER_FLAGS) -F -U flash:w:$(HEXFILE)
+include $(RIOTMAKE)/tools/avrdude.inc.mk
diff --git a/cpu/atmega256rfr2/periph/Makefile b/cpu/atmega256rfr2/periph/Makefile
index 48422e909a47..a36df249ac1d 100644
--- a/cpu/atmega256rfr2/periph/Makefile
+++ b/cpu/atmega256rfr2/periph/Makefile
@@ -1 +1 @@
-include $(RIOTBASE)/Makefile.base
+include $(RIOTMAKE)/periph.mk
diff --git a/cpu/atmega328p/Makefile.include b/cpu/atmega328p/Makefile.include
index 058b45a115f0..20119203dd60 100644
--- a/cpu/atmega328p/Makefile.include
+++ b/cpu/atmega328p/Makefile.include
@@ -5,4 +5,4 @@ RAM_LEN = 2K
 ROM_LEN = 32K
 
 # CPU depends on the atmega common module, so include it
-include $(RIOTCPU)/atmega_common/Makefile.include
\ No newline at end of file
+include $(RIOTCPU)/atmega_common/Makefile.include
diff --git a/cpu/atmega_common/Makefile.include b/cpu/atmega_common/Makefile.include
index 4d3ed2832dea..5c02288d19a1 100644
--- a/cpu/atmega_common/Makefile.include
+++ b/cpu/atmega_common/Makefile.include
@@ -1,44 +1,9 @@
-# Target architecture for the build. Use avr if you are unsure.
-export TARGET_ARCH ?= avr
-
-export CFLAGS_CPU = -mmcu=$(CPU) $(CFLAGS_FPU)
-export CFLAGS_LINK  = -ffunction-sections -fdata-sections -fno-builtin -fshort-enums
-export CFLAGS_DBG  ?= -ggdb -g3
-export CFLAGS_OPT  ?= -Os
-
-export CFLAGS += $(CFLAGS_CPU) $(CFLAGS_LINK) $(CFLAGS_DBG) $(CFLAGS_OPT)
-export ASFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG)
-LINKFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG) $(CFLAGS_OPT) -static -lgcc -e reset_handler -Wl,--gc-sections
-
-# export the peripheral drivers to be linked into the final binary
-export USEMODULE += atmega_common_periph
-export USEMODULE += periph_common
-
-# the atmel port uses stdio_uart
-export USEMODULE += stdio_uart
-
 # include module specific includes
 export INCLUDES += -I$(RIOTCPU)/atmega_common/include \
                    -isystem$(RIOTCPU)/atmega_common/avr_libc_extra/include \
                    -isystem$(RIOTCPU)/atmega_common/avr_libc_extra/include/vendor
 
-ifeq ($(LTO),1)
-  # avr-gcc <4.8.3 has a bug when using LTO which causes a warning to be printed always:
-  # '_vector_25' appears to be a misspelled signal handler [enabled by default]
-  # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59396
-  LINKFLAGS += -Wno-error
-endif
-
-# Use ROM_LEN and RAM_LEN during link
-$(if $(ROM_LEN),,$(error ROM_LEN is not defined))
-$(if $(RAM_LEN),,$(error RAM_LEN is not defined))
-LINKFLAGS += $(LINKFLAGPREFIX)--defsym=__TEXT_REGION_LENGTH__=$(ROM_LEN)$(if $(ROM_RESERVED),-$(ROM_RESERVED))
-LINKFLAGS += $(LINKFLAGPREFIX)--defsym=__DATA_REGION_LENGTH__=$(RAM_LEN)
-
-# Use newer linker script to have ROM/RAM configuration symbols in binutils<2.26
-LDSCRIPT_COMPAT = $(if $(shell $(TARGET_ARCH)-ld --verbose | grep __TEXT_REGION_LENGTH__),,\
-                    -T$(RIOTCPU)/$(CPU)/ldscripts_compat/avr_2.26.ld)
-LINKFLAGS += $(LDSCRIPT_COMPAT)
-
 # avr libc needs some RIOT-specific support code
 USEMODULE += avr_libc_extra
+
+include $(RIOTMAKE)/arch/atmega.inc.mk
diff --git a/makefiles/arch/atmega.inc.mk b/makefiles/arch/atmega.inc.mk
new file mode 100644
index 000000000000..b45178e3016b
--- /dev/null
+++ b/makefiles/arch/atmega.inc.mk
@@ -0,0 +1,50 @@
+# Target architecture for the build. Use avr if you are unsure.
+TARGET_ARCH ?= avr
+
+CFLAGS_CPU   = -mmcu=$(CPU) $(CFLAGS_FPU)
+CFLAGS_LINK  = -ffunction-sections -fdata-sections -fno-builtin -fshort-enums
+CFLAGS_DBG  ?= -ggdb -g3
+CFLAGS_OPT  ?= -Os
+
+CFLAGS    += $(CFLAGS_CPU) $(CFLAGS_LINK) $(CFLAGS_DBG) $(CFLAGS_OPT)
+ASFLAGS   += $(CFLAGS_CPU) $(CFLAGS_DBG)
+LINKFLAGS += $(CFLAGS_CPU) $(CFLAGS_DBG) $(CFLAGS_OPT) -static -lgcc -e reset_handler -Wl,--gc-sections
+OFLAGS    += -j .text -j .data
+
+# Tell the build system that the CPU depends on the atmega common files:
+USEMODULE += atmega_common
+
+# export the peripheral drivers to be linked into the final binary
+USEMODULE += atmega_common_periph
+USEMODULE += periph_common
+
+# Export the peripheral drivers to be linked into the final binary, for now
+# only atmega126rfr2 has periph drivers
+ifeq ($(CPU), atmega256rfr2)
+  USEMODULE += periph
+endif
+
+# the atmel port uses stdio_uart
+USEMODULE += stdio_uart
+
+# explicitly tell the linker to link the syscalls and startup code.
+# without this the interrupt vectors will not be linked correctly!
+UNDEF += $(BINDIR)/atmega_common/startup.o
+
+# Use ROM_LEN and RAM_LEN during link
+$(if $(ROM_LEN),,$(error ROM_LEN is not defined))
+$(if $(RAM_LEN),,$(error RAM_LEN is not defined))
+LINKFLAGS += $(LINKFLAGPREFIX)--defsym=__TEXT_REGION_LENGTH__=$(ROM_LEN)$(if $(ROM_RESERVED),-$(ROM_RESERVED))
+LINKFLAGS += $(LINKFLAGPREFIX)--defsym=__DATA_REGION_LENGTH__=$(RAM_LEN)
+
+# Use newer linker script to have ROM/RAM configuration symbols in binutils<2.26
+LDSCRIPT_COMPAT = $(if $(shell $(TARGET_ARCH)-ld --verbose | grep __TEXT_REGION_LENGTH__),,\
+                    -T$(RIOTCPU)/$(CPU)/ldscripts_compat/avr_2.26.ld)
+LINKFLAGS += $(LDSCRIPT_COMPAT)
+
+ifeq ($(LTO),1)
+  # avr-gcc <4.8.3 has a bug when using LTO which causes a warning to be printed always:
+  # '_vector_25' appears to be a misspelled signal handler [enabled by default]
+  # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59396
+  LINKFLAGS += -Wno-error
+endif
diff --git a/makefiles/tools/avrdude.inc.mk b/makefiles/tools/avrdude.inc.mk
new file mode 100644
index 000000000000..b45c685f48a0
--- /dev/null
+++ b/makefiles/tools/avrdude.inc.mk
@@ -0,0 +1,16 @@
+FLASHER = avrdude
+DIST_PATH = $(RIOTBOARD)/$(BOARD)/dist
+DEBUGSERVER_PORT = 4242
+DEBUGSERVER = $(DIST_PATH)/debug_srv.sh
+DEBUGSERVER_FLAGS = "-g -j usb :$(DEBUGSERVER_PORT)"
+DEBUGGER_FLAGS = "-x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf $(ELFFILE)"
+DEBUGGER = $(DIST_PATH)/debug.sh $(DEBUGSERVER_FLAGS) $(DIST_PATH) $(DEBUGSERVER_PORT)
+
+# make the flasher port configurable (e.g. with atmelice the port is usb)
+# defaults to terminal's serial port if not configured
+AVRDUDE_PORT    ?= $(PORT)
+PROGRAMMER_FLAGS = -P $(AVRDUDE_PORT) $(FFLAGS_EXTRA)
+
+# don't force to flash HEXFILE, but set it as default
+FLASHFILE ?= $(HEXFILE)
+FFLAGS += -c $(PROGRAMMER) $(PROGRAMMER_FLAGS) -U flash:w:$(HEXFILE)