update Makefile
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.gitignore
vendored
1
.gitignore
vendored
@ -3,4 +3,5 @@
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*.bin
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*.hex
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*.lst
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*.lss
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*.map
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100
Makefile
100
Makefile
@ -1,65 +1,71 @@
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PRG = twiboot
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OBJ = main.o
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MCU_TARGET = atmega88
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OPTIMIZE = -Os
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CC := avr-gcc
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LD := avr-ld
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OBJCOPY := avr-objcopy
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OBJDUMP := avr-objdump
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SIZE := avr-size
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ifeq ($(MCU_TARGET), atmega8)
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BOOTLOADER_START=0x1C00
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TARGET = twiboot
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SOURCE = $(wildcard *.c)
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# select MCU
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MCU = atmega88
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AVRDUDE_PROG := -c avr910 -b 115200 -P /dev/ttyUSB0
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#AVRDUDE_PROG := -c dragon_isp -P usb
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# ---------------------------------------------------------------------------
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ifeq ($(MCU), atmega8)
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# (8Mhz internal RC-Osz., 2.7V BOD)
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AVRDUDE_MCU=m8
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endif
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ifeq ($(MCU_TARGET), atmega88)
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AVRDUDE_FUSES=lfuse:w:0x84:m hfuse:w:0xda:m
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BOOTLOADER_START=0x1C00
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endif
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ifeq ($(MCU), atmega88)
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# (8Mhz internal RC-Osz., 2.7V BOD)
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AVRDUDE_MCU=m88
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AVRDUDE_FUSES=lfuse:w:0xc2:m hfuse:w:0xdd:m efuse:w:0xfa:m
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BOOTLOADER_START=0x1C00
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endif
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ifeq ($(MCU_TARGET), atmega168)
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ifeq ($(MCU), atmega168)
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# (8Mhz internal RC-Osz., 2.7V BOD)
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AVRDUDE_MCU=m168 -F
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AVRDUDE_FUSES=lfuse:w:0xc2:m hfuse:w:0xdd:m efuse:w:0xfa:m
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BOOTLOADER_START=0x3C00
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AVRDUDE_MCU=m168
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endif
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DEFS = -DAPP_END=$(BOOTLOADER_START)
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LIBS =
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# ---------------------------------------------------------------------------
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# Override is only needed by avr-lib build system.
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override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
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override LDFLAGS = -Wl,-Map,$(PRG).map,--section-start=.text=$(BOOTLOADER_START)
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CFLAGS = -pipe -g -Os -mmcu=$(MCU) -Wall -fdata-sections -ffunction-sections
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CFLAGS += -Wa,-adhlns=$(*F).lst -DBOOTLOADER_START=$(BOOTLOADER_START)
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LDFLAGS = -Wl,-Map,$(@:.elf=.map),--cref,--relax,--gc-sections,--section-start=.text=$(BOOTLOADER_START)
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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SIZE = avr-size
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# ---------------------------------------------------------------------------
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all: $(PRG).elf lst text
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$(SIZE) -x -A $(PRG).elf
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$(TARGET): $(TARGET).elf
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@$(SIZE) -B -x --mcu=$(MCU) $<
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$(PRG).elf: $(OBJ)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
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$(TARGET).elf: $(SOURCE:.c=.o)
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@echo " Linking file: $@"
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@$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
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@$(OBJDUMP) -h -S $@ > $(@:.elf=.lss)
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@$(OBJCOPY) -j .text -j .data -O ihex $@ $(@:.elf=.hex)
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@$(OBJCOPY) -j .text -j .data -O binary $@ $(@:.elf=.bin)
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%.o: %.c $(MAKEFILE_LIST)
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$(CC) $(CFLAGS) -c $< -o $@
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@echo " Building file: $<"
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@$(CC) $(CFLAGS) -o $@ -c $<
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clean:
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rm -rf *.o $(PRG).lst $(PRG).map $(PRG).elf $(PRG).hex $(PRG).bin
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rm -rf $(SOURCE:.c=.o) $(SOURCE:.c=.lst) $(addprefix $(TARGET), .elf .map .lss .hex .bin)
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lst: $(PRG).lst
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install: $(TARGET).elf
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avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) -U flash:w:$(<:.elf=.hex)
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%.lst: %.elf
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$(OBJDUMP) -h -S $< > $@
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text: hex bin
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hex: $(PRG).hex
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bin: $(PRG).bin
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%.hex: %.elf
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$(OBJCOPY) -j .text -j .data -O ihex $< $@
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%.bin: %.elf
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$(OBJCOPY) -j .text -j .data -O binary $< $@
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install: text
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avrdude -c dragon_isp -P usb -p $(AVRDUDE_MCU) -U flash:w:$(PRG).hex
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#fuses:
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# avrdude -c dragon_isp -P usb -p $(AVRDUDE_MCU) -U lfuse:w:0xc2:m
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# avrdude -c dragon_isp -P usb -p $(AVRDUDE_MCU) -U hfuse:w:0xdd:m
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# avrdude -c dragon_isp -P usb -p $(AVRDUDE_MCU) -U efuse:w:0xfa:m
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fuses:
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avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) $(patsubst %,-U %, $(AVRDUDE_FUSES))
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19
main.c
19
main.c
@ -54,6 +54,7 @@
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#endif
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#define EEPROM_SUPPORT 1
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#define LED_SUPPORT 1
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/* 25ms @8MHz */
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#define TIMER_RELOAD (0xFF - 195)
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@ -61,6 +62,7 @@
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/* 40 * 25ms */
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#define TIMEOUT 40
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#if LED_SUPPORT
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#define LED_INIT() DDRB = ((1<<PORTB4) | (1<<PORTB5))
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#define LED_RT_ON() PORTB |= (1<<PORTB4)
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#define LED_RT_OFF() PORTB &= ~(1<<PORTB4)
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@ -68,8 +70,19 @@
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#define LED_GN_OFF() PORTB &= ~(1<<PORTB5)
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#define LED_GN_TOGGLE() PORTB ^= (1<<PORTB5)
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#define LED_OFF() PORTB = 0x00
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#else
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#define LED_INIT()
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#define LED_RT_ON()
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#define LED_RT_OFF()
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#define LED_GN_ON()
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#define LED_GN_OFF()
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#define LED_GN_TOGGLE()
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#define LED_OFF()
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#endif
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#ifndef TWI_ADDRESS
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#define TWI_ADDRESS 0x29
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#endif
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/* SLA+R */
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#define CMD_WAIT 0x00
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@ -138,8 +151,8 @@ const static uint8_t chipinfo[8] = {
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SPM_PAGESIZE,
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(APP_END >> 8) & 0xFF,
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APP_END & 0xFF,
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(BOOTLOADER_START >> 8) & 0xFF,
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BOOTLOADER_START & 0xFF,
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#if (EEPROM_SUPPORT)
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((E2END +1) >> 8 & 0xFF),
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(E2END +1) & 0xFF
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@ -162,7 +175,7 @@ static void write_flash_page(void)
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uint8_t size = SPM_PAGESIZE;
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uint8_t *p = buf;
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if (pagestart >= APP_END)
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if (pagestart >= BOOTLOADER_START)
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return;
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boot_page_erase(pagestart);
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