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get bootloader working

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This commit is contained in:
David Voswinkel
2009-07-21 22:12:52 +02:00
parent 31989233b4
commit 68d4ffc7f1
7 changed files with 98 additions and 304 deletions
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8
avr/bootloader/Makefile
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@@ -4,15 +4,17 @@ TARGET = bootloader
F_CPU = 20000000UL
MCU = atmega644
SRC = bootloader.c
SRC = bootloader.c
ASRC = usbdrv/usbdrvasm.S interrupts.S
OBJECTS += $(patsubst %.c,%.o,${SRC})
OBJECTS += $(patsubst %.S,%.o,${ASRC})
HEADERS += $(shell echo *.h)
# CFLAGS += -Werror
LDFLAGS += -L/usr/local/avr/avr/lib
CFLAGS += -Iusbdrv -I.
CFLAGS += -DHARDWARE_REV=$(HARDWARE_REV)
CDEFS += -DF_CPU
ASFLAGS += -x assembler-with-cpp
ASFLAGS += -Iusbdrv -I.
@@ -36,12 +38,12 @@ else ifeq ($(MCU),atmega88)
# bootloader section starts at 0xc00 (word-address) == 0x1800 (byte-address)
BOOT_SECTION_START = 0x1800
else ifeq ($(MCU),atmega644)
# atmega88 with 2048 words bootloader:
# atmega644 with 2048 words bootloader:
# bootloader section starts at 0x7800 (word-address) == 0xF000 (byte-address)
BOOT_SECTION_START = 0xf000
endif
LDFLAGS += -Wl,--section-start=.text=$(BOOT_SECTION_START)
LDFLAGS += -Wl,--section-start=.text=$(BOOT_SECTION_START) -Wl,-u,vfprintf
CFLAGS += -DBOOT_SECTION_START=$(BOOT_SECTION_START)