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Add STK525 (dev board) support

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This commit is contained in:
Raphael Assenat 2015-08-18 21:09:34 -04:00
parent a84b70c369
commit 5e59201bc4
2 changed files with 61 additions and 7 deletions
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44
Makefile.stk525 Normal file
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@ -0,0 +1,44 @@
CC=avr-gcc
AS=$(CC)
LD=$(CC)
PROGNAME=n64
OBJDIR=objs-$(PROGNAME)
CPU=at90usb1287
CFLAGS=-Wall -mmcu=$(CPU) -DF_CPU=16000000L -Os -DUART1_STDOUT -DSTK525
LDFLAGS=-mmcu=$(CPU) -Wl,-Map=$(PROGNAME).map
HEXFILE=$(PROGNAME).hex
OBJS=main.o n64.o gcn64_protocol.o usart1.o usb.o bootloader.o
all: $(HEXFILE)
clean:
rm -f $(PROGNAME).elf $(PROGNAME).hex $(PROGNAME).map $(OBJS)
%.o: %.S
$(CC) $(CFLAGS) -c $< -o $@
%.o: %.c
$(CC) $(CFLAGS) -c $< -o $@
%.o: %.c %.h
$(CC) $(CFLAGS) -c $< -o $@
$(PROGNAME).elf: $(OBJS)
$(LD) $(OBJS) $(LDFLAGS) -o $(PROGNAME).elf
$(PROGNAME).hex: $(PROGNAME).elf
avr-objcopy -j .data -j .text -O ihex $(PROGNAME).elf $(PROGNAME).hex
avr-size $(PROGNAME).elf
fuse:
flash: $(HEXFILE)
./wait_then_flash.sh $(CPU) $(HEXFILE)
chip_erase:
dfu-programmer atmega32u2 erase
reset:
dfu-programmer atmega32u2 reset

24
gcn64_protocol.c
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@ -26,13 +26,23 @@
static volatile unsigned char gcn64_workbuf[GCN64_BUF_SIZE];
/******** IO port definitions and options **************/
#define GCN64_DATA_PORT PORTD
#define GCN64_DATA_DDR DDRD
#define GCN64_DATA_PIN PIND
#define GCN64_DATA_BIT (1<<0)
#define GCN64_BIT_NUM_S "0" // for asm
#define FREQ_IS_16MHZ
#define DISABLE_INTS_DURING_COMM
#ifndef STK525
#define GCN64_DATA_PORT PORTD
#define GCN64_DATA_DDR DDRD
#define GCN64_DATA_PIN PIND
#define GCN64_DATA_BIT (1<<0)
#define GCN64_BIT_NUM_S "0" // for asm
#define FREQ_IS_16MHZ
#define DISABLE_INTS_DURING_COMM
#else
#define GCN64_DATA_PORT PORTA
#define GCN64_DATA_DDR DDRA
#define GCN64_DATA_PIN PINA
#define GCN64_DATA_BIT (1<<0)
#define GCN64_BIT_NUM_S "0" // for asm
#define FREQ_IS_16MHZ
#define DISABLE_INTS_DURING_COMM
#endif
/*
* \brief Explode bytes to bits