mirror of
https://github.com/raphnet/dreamcast_usb
synced 2024-12-21 06:38:52 -05:00
92 lines
2.1 KiB
Makefile
92 lines
2.1 KiB
Makefile
CC=avr-gcc
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AS=$(CC)
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LD=$(CC)
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PROGNAME=dc_usb
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CPU=atmega168
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CFLAGS=-Wall -Os -Iusbdrv -I. -mmcu=$(CPU) -DF_CPU=16000000L #-DDEBUG_LEVEL=1
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LDFLAGS=-Wl,-Map=$(PROGNAME).map -mmcu=$(CPU)
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AVRDUDE=avrdude -p m168 -P usb -c avrispmkII
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OBJS=usbdrv/usbdrv.o usbdrv/usbdrvasm.o main.o maplebus.o dc_pad.o
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HEXFILE=$(PROGNAME).hex
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ELFFILE=$(PROGNAME).elf
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# symbolic targets:
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all: $(HEXFILE)
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.c.o:
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$(CC) $(CFLAGS) -c $< -o $@
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.S.o:
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$(CC) $(CFLAGS) -x assembler-with-cpp -c $< -o $@
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# "-x assembler-with-cpp" should not be necessary since this is the default
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# file type for the .S (with capital S) extension. However, upper case
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# characters are not always preserved on Windows. To ensure WinAVR
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# compatibility define the file type manually.
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rxcode.asm: generate_rxcode.sh
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./generate_rxcode.sh > rxcode.asm
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maplebus.o: maplebus.c rxcode.asm
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$(CC) $(CFLAGS) -c $< -o $@
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.c.s:
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$(CC) $(CFLAGS) -S $< -o $@
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clean:
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rm -f $(HEXFILE) $(PROGNAME).map $(PROGNAME).elf $(PROGNAME).hex *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s
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# file targets:
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$(ELFFILE): $(OBJS)
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$(LD) $(LDFLAGS) -o $(ELFFILE) $(OBJS)
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$(HEXFILE): $(ELFFILE)
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rm -f $(HEXFILE)
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avr-objcopy -j .text -j .data -O ihex $(ELFFILE) $(HEXFILE)
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avr-size $(ELFFILE)
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flash: $(HEXFILE)
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$(AVRDUDE) -Uflash:w:$(HEXFILE) -B 1.0
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# Extended fuse byte (Datasheet Table 28-5)
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#
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# - - - - - BOOTSZ1 BOOTSZ0 BOOTRST
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# 0 0 0 0 0 0 0 1
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#
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EFUSE=0x01
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# Fuse high byte (Datasheet Table 28-6)
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#
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# RSTDISBL DWEN SPIEN WDTON EESAVE BODLEVEL2 BODLEVEL1 BODLEVEL0
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# 1 1 0 1 0 1 0 1
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#
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HFUSE=0xd5
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# Fuse low byte (Datasheet Table 28-7)
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#
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# CKDIV8 CKOUT SUT1 SUT0 CKSEL3 CKSEL2 CKSEL1 CKSEL0
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# 1 1 0 1 0 1 1 1
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#
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# Full swing crystal oscillator
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# 0.4 - 20 MHz : CKSEL3..1 011
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#
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# Crystal Oscillator, BOD enabled (Table 9-6)
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# CKSEL0 : 1
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# SUT1..0 : 01
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#
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LFUSE=0xD7
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fuse:
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$(AVRDUDE) -e -Uefuse:w:$(EFUSE):m -Uhfuse:w:$(HFUSE):m -Ulfuse:w:$(LFUSE):m -B 20.0 -v
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chip_erase:
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$(AVRDUDE) -e -B 1.0 -F
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reset:
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$(AVRDUDE) -B 1.0 -F
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