1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
# Name: Makefile
# Project: Micronucleus
# Author: Jenna Fox; portions by Christian Starkjohann, Louis Beaudoin
# Creation Date: 2007-12-10
# Tabsize: 4
# Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH
# License: GNU GPL v2 (see License.txt)
###############################################################################
# Configure the following variables according to your AVR.
# Program the device with
# make fuse # to set the clock generator, boot section size etc.
# make flash # to load the boot loader into flash
# make lock # to protect the boot loader from overwriting
# make disablereset # for ATtiny85 target - to use external reset line for IO (CAUTION: this is not easy to enable again, see README)
F_CPU = 16500000
DEVICE = attiny85
FUSEOPT = $(FUSEOPT_t85)
LOCKOPT = -U lock:w:0x2f:m
# hexadecimal address for bootloader section to begin. To calculate the best value:
# - make clean; make main.hex; ### output will list data: 2124 (or something like that)
# - for the size of your device (8kb = 1024 * 8 = 8192) subtract above value 2124... = 6068
# - How many pages in is that? 6068 / 64 (tiny85 page size in bytes) = 94.8125
# - round that down to 94 - our new bootloader address is 94 * 64 = 6016, in hex = 1780
BOOTLOADER_ADDRESS = 19C0
PROGRAMMER = -c USBasp
# PROGRAMMER contains AVRDUDE options to address your programmer
FUSEOPT_8 = -U hfuse:w:0xc0:m -U lfuse:w:0x9f:m
FUSEOPT_88 = -U hfuse:w:0xd6:m -U lfuse:w:0xdf:m -U efuse:w:0x00:m
FUSEOPT_168 = -U hfuse:w:0xd6:m -U lfuse:w:0xdf:m -U efuse:w:0x00:m
FUSEOPT_328 = -U lfuse:w:0xf7:m -U hfuse:w:0xda:m -U efuse:w:0x03:m
FUSEOPT_t85 = -U lfuse:w:0xe1:m -U hfuse:w:0xdd:m -U efuse:w:0xfe:m
FUSEOPT_t85_DISABLERESET = -U lfuse:w:0xe1:m -U efuse:w:0xfe:m -U hfuse:w:0x5d:m
# You may have to change the order of these -U commands.
#---------------------------------------------------------------------
# ATMega8
#---------------------------------------------------------------------
# Fuse high byte:
# 0xc0 = 1 1 0 0 0 0 0 0 <-- BOOTRST (boot reset vector at 0x1800)
# ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
# | | | | | +-------- BOOTSZ1
# | | | | + --------- EESAVE (preserve EEPROM over chip erase)
# | | | +-------------- CKOPT (full output swing)
# | | +---------------- SPIEN (allow serial programming)
# | +------------------ WDTON (WDT not always on)
# +-------------------- RSTDISBL (reset pin is enabled)
# Fuse low byte:
# 0x9f = 1 0 0 1 1 1 1 1
# ^ ^ \ / \--+--/
# | | | +------- CKSEL 3..0 (external >8M crystal)
# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
# | +------------------ BODEN (BrownOut Detector enabled)
# +-------------------- BODLEVEL (2.7V)
#---------------------------------------------------------------------
# ATMega88, ATMega168
#---------------------------------------------------------------------
# Fuse extended byte:
# 0x00 = 0 0 0 0 0 0 0 0 <-- BOOTRST (boot reset vector at 0x1800)
# \+/
# +------- BOOTSZ (00 = 2k bytes)
# Fuse high byte:
# 0xd6 = 1 1 0 1 0 1 1 0
# ^ ^ ^ ^ ^ \-+-/
# | | | | | +------ BODLEVEL 0..2 (110 = 1.8 V)
# | | | | + --------- EESAVE (preserve EEPROM over chip erase)
# | | | +-------------- WDTON (if 0: watchdog always on)
# | | +---------------- SPIEN (allow serial programming)
# | +------------------ DWEN (debug wire enable)
# +-------------------- RSTDISBL (reset pin is enabled)
# Fuse low byte:
# 0xdf = 1 1 0 1 1 1 1 1
# ^ ^ \ / \--+--/
# | | | +------- CKSEL 3..0 (external >8M crystal)
# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
# | +------------------ CKOUT (if 0: Clock output enabled)
# +-------------------- CKDIV8 (if 0: divide by 8)
#---------------------------------------------------------------------
# ATMega328P
#---------------------------------------------------------------------
# Fuse extended byte:
# 0x03 = - - - - - 0 1 1
# \-+-/
# +------ BODLEVEL 0..2 (011 = 4.3V)
# Fuse high byte:
# 0xda = 1 1 0 1 1 0 1 0 <-- BOOTRST (0 = jump to bootloader at start)
# ^ ^ ^ ^ ^ \+/
# | | | | | +------- BOOTSZ 0..1 (01 = 2KB starting at 0x7800)
# | | | | + --------- EESAVE (don't preserve EEPROM over chip erase)
# | | | +-------------- WDTON (1 = watchdog disabled at start)
# | | +---------------- SPIEN (0 = allow serial programming)
# | +------------------ DWEN (1 = debug wire disable)
# +-------------------- RSTDISBL (1 = reset pin is enabled)
# Fuse low byte:
# 0xf7 = 1 1 1 1 0 1 1 1
# ^ ^ \ / \--+--/
# | | | +------- CKSEL 3..0 (0111 = external full-swing crystal)
# | | +--------------- SUT 1..0 (11 = startup time 16K CK/14K + 65ms)
# | +------------------ CKOUT (1 = clock output disabled)
# +-------------------- CKDIV8 (1 = do not divide clock by 8)
#---------------------------------------------------------------------
# ATtiny85
#---------------------------------------------------------------------
# Fuse extended byte:
# 0xFE = - - - - - 1 1 0
# ^
# |
# +---- SELFPRGEN (enable self programming flash)
#
# Fuse high byte:
# 0xdd = 1 1 0 1 1 1 0 1
# ^ ^ ^ ^ ^ \-+-/
# | | | | | +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)
# | | | | +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
# | | | +-------------- WDTON (watchdog timer always on -> disable)
# | | +---------------- SPIEN (enable serial programming -> enabled)
# | +------------------ DWEN (debug wire enable)
# +-------------------- RSTDISBL (disable external reset -> enabled)
#
# Fuse high byte ("no reset": external reset disabled, can't program through SPI anymore)
# 0x5d = 0 1 0 1 1 1 0 1
# ^ ^ ^ ^ ^ \-+-/
# | | | | | +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)
# | | | | +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
# | | | +-------------- WDTON (watchdog timer always on -> disable)
# | | +---------------- SPIEN (enable serial programming -> enabled)
# | +------------------ DWEN (debug wire enable)
# +-------------------- RSTDISBL (disable external reset -> disabled!)
#
# Fuse low byte:
# 0xe1 = 1 1 1 0 0 0 0 1
# ^ ^ \+/ \--+--/
# | | | +------- CKSEL 3..0 (clock selection -> HF PLL)
# | | +--------------- SUT 1..0 (BOD enabled, fast rising power)
# | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
# +-------------------- CKDIV8 (divide clock by 8 -> don't divide)
###############################################################################
# Tools:
AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE)
CC = avr-gcc
# Options:
DEFINES = -DBOOTLOADER_ADDRESS=0x$(BOOTLOADER_ADDRESS) #-DDEBUG_LEVEL=2
# Remove the -fno-* options when you use gcc 3, it does not understand them
#
CFLAGS = -g2 -nostartfiles -ffunction-sections -fdata-sections -fpack-struct -Wall -Os -fno-inline-small-functions -fno-move-loop-invariants -fno-tree-scev-cprop -I. -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) $(DEFINES)
LDFLAGS = -Wl,--relax,--section-start=.text=$(BOOTLOADER_ADDRESS),-Map=main.map
OBJECTS = crt1.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o
OBJECTS += osccalASM.o
# symbolic targets:
all: main.hex
.c.o:
@$(CC) $(CFLAGS) -c $< -o $@ -Wa,-ahls=$<.lst
.S.o:
@$(CC) $(CFLAGS) -x assembler-with-cpp -c $< -o $@
# "-x assembler-with-cpp" should not be necessary since this is the default
# file type for the .S (with capital S) extension. However, upper case
# characters are not always preserved on Windows. To ensure WinAVR
# compatibility define the file type manually.
.c.s:
@$(CC) $(CFLAGS) -S $< -o $@
flash: all
$(AVRDUDE) -U flash:w:main.hex:i -B 10
readflash:
$(AVRDUDE) -U flash:r:read.hex:i
fuse:
$(AVRDUDE) $(FUSEOPT)
disablereset:
$(AVRDUDE) $(FUSEOPT_t85_DISABLERESET)
lock:
$(AVRDUDE) $(LOCKOPT)
read_fuses:
$(UISP) --rd_fuses
clean:
@rm -f main.hex main.bin main.c.lst main.map main.raw *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s main.lss
# file targets:
main.bin: $(OBJECTS)
@$(CC) $(CFLAGS) -o main.bin $(OBJECTS) $(LDFLAGS)
main.hex: main.bin
@rm -f main.hex main.eep.hex
@avr-objcopy -j .text -j .data -O ihex main.bin main.hex
@echo Size of sections:
@avr-size main.bin
@echo Size of binary hexfile. Use the "data" size to calculate the bootloader address:
@avr-size main.hex
upgrade: main.bin
avr-objcopy -O binary main.bin main.raw
avr-objcopy -I binary -O elf32-avr \
--rename-section .data=.text \
--redefine-sym _binary_main_raw_start=loader \
--redefine-sym _binary_main_raw_end=loader_end \
main.raw bootloader_linkable.o
disasm: main.bin
@avr-objdump -d -S main.bin >main.lss
cpp:
@$(CC) $(CFLAGS) -E main.c
# Special rules for generating hex files for various devices and clock speeds
ALLHEXFILES = hexfiles/mega8_12mhz.hex hexfiles/mega8_15mhz.hex hexfiles/mega8_16mhz.hex \
hexfiles/mega88_12mhz.hex hexfiles/mega88_15mhz.hex hexfiles/mega88_16mhz.hex hexfiles/mega88_20mhz.hex\
hexfiles/mega168_12mhz.hex hexfiles/mega168_15mhz.hex hexfiles/mega168_16mhz.hex hexfiles/mega168_20mhz.hex\
hexfiles/mega328p_12mhz.hex hexfiles/mega328p_15mhz.hex hexfiles/mega328p_16mhz.hex hexfiles/mega328p_20mhz.hex
allhexfiles: $(ALLHEXFILES)
$(MAKE) clean
avr-size hexfiles/*.hex
$(ALLHEXFILES):
@[ -d hexfiles ] || mkdir hexfiles
@device=`echo $@ | sed -e 's|.*/mega||g' -e 's|_.*||g'`; \
clock=`echo $@ | sed -e 's|.*_||g' -e 's|mhz.*||g'`; \
addr=`echo $$device | sed -e 's/\([0-9]\)8/\1/g' | awk '{printf("%x", ($$1 - 2) * 1024)}'`; \
echo "### Make with F_CPU=$${clock}000000 DEVICE=atmega$$device BOOTLOADER_ADDRESS=$$addr"; \
$(MAKE) clean; \
$(MAKE) main.hex F_CPU=$${clock}000000 DEVICE=atmega$$device BOOTLOADER_ADDRESS=$$addr DEFINES=-DUSE_AUTOCONFIG=1
mv main.hex $@
|
