From 81ff282291527178abab4ab63b22065d6eb3cb2f Mon Sep 17 00:00:00 2001
From: Bluebie <a@creativepony.com>
Date: Thu, 4 Oct 2012 11:26:39 +1000
Subject: Added viral in place upgrader tool, to upgrade bootloaders via the
bootloader itself (should work with any attiny85 bootloader I think, in
either direction)
---
upgrade/Makefile | 204 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 204 insertions(+)
create mode 100644 upgrade/Makefile
(limited to 'upgrade/Makefile')
diff --git a/upgrade/Makefile b/upgrade/Makefile
new file mode 100644
index 0000000..e4f6b9d
--- /dev/null
+++ b/upgrade/Makefile
@@ -0,0 +1,204 @@
+# Name: Makefile
+# Project: Upgrade - based on Micronucleus makefile
+# Author: Jenna Fox; portions by Christian Starkjohann, Louis Beaudoin
+# Creation Date: 2012-10-4
+# Tabsize: 4
+# 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
+
+# app starts at beginning, as it should!
+APP_ADDRESS = 0
+
+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 $(DEVICE)
+CC = avr-gcc
+
+# Options:
+DEFINES = -DAPP_ADDRESS=0x$(APP_ADDRESS) #-DDEBUG_LEVEL=2
+# Remove the -fno-* options when you use gcc 3, it does not understand them
+CFLAGS = -Wall -Os -fno-move-loop-invariants -fno-tree-scev-cprop -fno-inline-small-functions -I. -Ilibs-device -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) $(DEFINES)
+LDFLAGS = -Wl,--relax,--gc-sections -Wl,--section-start=.text=$(APP_ADDRESS),-Map=upgrade.map
+
+OBJECTS = upgrade.o
+
+# symbolic targets:
+all: upgrade.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:upgrade.hex:i
+
+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 upgrade.hex upgrade.bin *.o upgrade.s upgrade.map upgrade.c.lst
+
+# file targets:
+upgrade.bin: $(OBJECTS)
+ $(CC) $(CFLAGS) -o upgrade.bin $(OBJECTS) $(LDFLAGS)
+
+upgrade.hex: upgrade.bin
+ rm -f upgrade.hex upgrade.eep.hex
+ avr-objcopy -j .text -j .data -O ihex upgrade.bin upgrade.hex
+ avr-size upgrade.hex
+
+disasm: upgrade.bin
+ avr-objdump -d upgrade.bin
+
+cpp:
+ $(CC) $(CFLAGS) -E upgrade.c
+
+
--
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