makefile: added gdb

diff --git a/Makefile b/Makefile
index f8cbf9e..8b4955b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,19 @@
 # attiny25 makefile
 
 MCU = attiny25
+DEVICE = t25
 F_CPU = 8000000UL
 BAUD = 57600
 
 PROGRAMMER_TYPE = usbasp
 
 CC = avr-gcc
+GDB = avr-gdb
 OBJCOPY = avr-objcopy
 OBJDUMP = avr-objdump
 AVRSIZE = avr-size
 AVRDUDE = avrdude
+SIMAVR = simavr
 
 CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I.
 CFLAGS = -Os -g -Wall
@@ -32,6 +35,7 @@ $(ODIR)/%.o: %.c $(DEPS)
 %.elf: $(OBJ)
        $(CC) $(CFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ -o $@
 
+# TODO: add fuse section with .j .fuse
 %.hex: %.elf
        $(OBJCOPY) -j .text -j .data -O ihex $< $@
 
@@ -49,17 +53,19 @@ clean:
        rm -rf $(ODIR)/*.o *.hex *.elf *.map
 
 check-dev: 
-       $(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD)
+       $(AVRDUDE) -p $(DEVICE) -c $(PROGRAMMER_TYPE) -b $(BAUD)
 
 flash:
-       $(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD) -U flash:w:hbc.hex:i
+       $(AVRDUDE) -p $(DEVICE) -c $(PROGRAMMER_TYPE) -b $(BAUD) -U flash:w:hbc.hex:i
 
 read-flash-bin:        
-       $(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD) -P /dev/ttyUSB0 -U flash:r:flash.bin:r
+       $(AVRDUDE) -p $(DEVICE) -c $(PROGRAMMER_TYPE) -b $(BAUD) -P /dev/ttyUSB0 -U flash:r:flash.bin:r
 
 # simulator runs on localhost:1234
 # load .elf file with avr-sim hex.elf
 # and start debugging 
 sim:
-       simavr -f $(F_CPU) -m $(MCU) -g -t hbc.hex
+       $(SIMAVR) -f $(F_CPU) -m $(MCU) -g -t hbc.hex
 
+gdb:
+       $(GDB) -x gdb-commands.txt hbc.elf

diff --git a/gdb-commands.txt b/gdb-commands.txt
new file mode 100644 (file)
index 0000000..ed8b387
--- /dev/null
+++ b/gdb-commands.txt
@@ -0,0 +1,2 @@
+target remote :1234
+layout next