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Add bootloader files for ATmega1284/Sanguino

Added the optiboot bootloader, uses only 512kB of FLASH
Includes .hex file is for 20MHz µC Clock and serial speed of 57k6
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1 parent 5bfba77 commit f991bf23b2a5186441fdc0a163120ca0ed92e91c @STB3 STB3 committed Feb 27, 2013
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470 ArduinoAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/Makefile
@@ -0,0 +1,470 @@
+# Makefile for ATmegaBOOT
+# E.Lins, 18.7.2005
+# $Id$
+#
+# Instructions
+#
+# To make bootloader .hex file:
+# make diecimila
+# make lilypad
+# make ng
+# etc...
+#
+# To burn bootloader .hex file:
+# make diecimila_isp
+# make lilypad_isp
+# make ng_isp
+# etc...
+
+# program name should not be changed...
+PROGRAM = optiboot
+
+# The default behavior is to build using tools that are in the users
+# current path variables, but we can also build using an installed
+# Arduino user IDE setup, or the Arduino source tree.
+# Uncomment this next lines to build within the arduino environment,
+# using the arduino-included avrgcc toolset (mac and pc)
+# ENV ?= arduino
+# ENV ?= arduinodev
+# OS ?= macosx
+# OS ?= windows
+
+
+# enter the parameters for the avrdude isp tool
+ISPTOOL = stk500v2
+ISPPORT = usb
+ISPSPEED = -b 115200
+
+MCU_TARGET = atmega168
+LDSECTIONS = -Wl,--section-start=.text=0x3e00 -Wl,--section-start=.version=0x3ffe
+
+# Build environments
+# Start of some ugly makefile-isms to allow optiboot to be built
+# in several different environments. See the README.TXT file for
+# details.
+
+# default
+fixpath = $(1)
+
+ifeq ($(ENV), arduino)
+# For Arduino, we assume that we're connected to the optiboot directory
+# included with the arduino distribution, which means that the full set
+# of avr-tools are "right up there" in standard places.
+TOOLROOT = ../../../tools
+GCCROOT = $(TOOLROOT)/avr/bin/
+AVRDUDE_CONF = -C$(TOOLROOT)/avr/etc/avrdude.conf
+
+ifeq ($(OS), windows)
+# On windows, SOME of the tool paths will need to have backslashes instead
+# of forward slashes (because they use windows cmd.exe for execution instead
+# of a unix/mingw shell?) We also have to ensure that a consistent shell
+# is used even if a unix shell is installed (ie as part of WINAVR)
+fixpath = $(subst /,\,$1)
+SHELL = cmd.exe
+endif
+
+else ifeq ($(ENV), arduinodev)
+# Arduino IDE source code environment. Use the unpacked compilers created
+# by the build (you'll need to do "ant build" first.)
+ifeq ($(OS), macosx)
+TOOLROOT = ../../../../build/macosx/work/Arduino.app/Contents/Resources/Java/hardware/tools
+endif
+ifeq ($(OS), windows)
+TOOLROOT = ../../../../build/windows/work/hardware/tools
+endif
+
+GCCROOT = $(TOOLROOT)/avr/bin/
+AVRDUDE_CONF = -C$(TOOLROOT)/avr/etc/avrdude.conf
+
+else
+GCCROOT =
+AVRDUDE_CONF =
+endif
+#
+# End of build environment code.
+
+
+# the efuse should really be 0xf8; since, however, only the lower
+# three bits of that byte are used on the atmega168, avrdude gets
+# confused if you specify 1's for the higher bits, see:
+# http://tinker.it/now/2007/02/24/the-tale-of-avrdude-atmega168-and-extended-bits-fuses/
+#
+# similarly, the lock bits should be 0xff instead of 0x3f (to
+# unlock the bootloader section) and 0xcf instead of 0x2f (to
+# lock it), but since the high two bits of the lock byte are
+# unused, avrdude would get confused.
+
+ISPFUSES = $(GCCROOT)avrdude $(AVRDUDE_CONF) -c $(ISPTOOL) \
+ -p $(MCU_TARGET) -P $(ISPPORT) $(ISPSPEED) \
+ -e -u -U lock:w:0x3f:m -U efuse:w:0x$(EFUSE):m \
+ -U hfuse:w:0x$(HFUSE):m -U lfuse:w:0x$(LFUSE):m
+ISPFLASH = $(GCCROOT)avrdude $(AVRDUDE_CONF) -c $(ISPTOOL) \
+ -p $(MCU_TARGET) -P $(ISPPORT) $(ISPSPEED) \
+ -U flash:w:$(PROGRAM)_$(TARGET).hex -U lock:w:0x2f:m
+
+STK500 = "C:\Program Files\Atmel\AVR Tools\STK500\Stk500.exe"
+STK500-1 = $(STK500) -e -d$(MCU_TARGET) -pf -vf -if$(PROGRAM)_$(TARGET).hex \
+-lFF -LFF -f$(HFUSE)$(LFUSE) -EF8 -ms -q -cUSB -I200kHz -s -wt
+STK500-2 = $(STK500) -d$(MCU_TARGET) -ms -q -lCF -LCF -cUSB -I200kHz -s -wt
+
+OBJ = $(PROGRAM).o
+OPTIMIZE = -Os -fno-inline-small-functions -fno-split-wide-types -mshort-calls
+
+DEFS =
+LIBS =
+
+CC = $(GCCROOT)avr-gcc
+
+# Override is only needed by avr-lib build system.
+
+override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) -DF_CPU=$(AVR_FREQ) $(DEFS)
+override LDFLAGS = $(LDSECTIONS) -Wl,--relax -Wl,--gc-sections -nostartfiles -nostdlib
+
+OBJCOPY = $(GCCROOT)avr-objcopy
+OBJDUMP = $(call fixpath,$(GCCROOT)avr-objdump)
+
+SIZE = $(GCCROOT)avr-size
+
+# Test platforms
+# Virtual boot block test
+virboot328: TARGET = atmega328
+virboot328: MCU_TARGET = atmega328p
+virboot328: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200' '-DVIRTUAL_BOOT'
+virboot328: AVR_FREQ = 16000000L
+virboot328: LDSECTIONS = -Wl,--section-start=.text=0x7e00 -Wl,--section-start=.version=0x7ffe
+virboot328: $(PROGRAM)_atmega328.hex
+virboot328: $(PROGRAM)_atmega328.lst
+
+# 20MHz clocked platforms
+#
+# These are capable of 230400 baud, or 115200 baud on PC (Arduino Avrdude issue)
+#
+
+pro20: TARGET = pro_20mhz
+pro20: MCU_TARGET = atmega168
+pro20: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+pro20: AVR_FREQ = 20000000L
+pro20: $(PROGRAM)_pro_20mhz.hex
+pro20: $(PROGRAM)_pro_20mhz.lst
+
+pro20_isp: pro20
+pro20_isp: TARGET = pro_20mhz
+# 2.7V brownout
+pro20_isp: HFUSE = DD
+# Full swing xtal (20MHz) 258CK/14CK+4.1ms
+pro20_isp: LFUSE = C6
+# 512 byte boot
+pro20_isp: EFUSE = 04
+pro20_isp: isp
+
+# 16MHz clocked platforms
+#
+# These are capable of 230400 baud, or 115200 baud on PC (Arduino Avrdude issue)
+#
+
+pro16: TARGET = pro_16MHz
+pro16: MCU_TARGET = atmega168
+pro16: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+pro16: AVR_FREQ = 16000000L
+pro16: $(PROGRAM)_pro_16MHz.hex
+pro16: $(PROGRAM)_pro_16MHz.lst
+
+pro16_isp: pro16
+pro16_isp: TARGET = pro_16MHz
+# 2.7V brownout
+pro16_isp: HFUSE = DD
+# Full swing xtal (20MHz) 258CK/14CK+4.1ms
+pro16_isp: LFUSE = C6
+# 512 byte boot
+pro16_isp: EFUSE = 04
+pro16_isp: isp
+
+# Diecimila, Duemilanove with m168, and NG use identical bootloaders
+# Call it "atmega168" for generality and clarity, keep "diecimila" for
+# backward compatibility of makefile
+#
+atmega168: TARGET = atmega168
+atmega168: MCU_TARGET = atmega168
+atmega168: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+atmega168: AVR_FREQ = 16000000L
+atmega168: $(PROGRAM)_atmega168.hex
+atmega168: $(PROGRAM)_atmega168.lst
+
+atmega168_isp: atmega168
+atmega168_isp: TARGET = atmega168
+# 2.7V brownout
+atmega168_isp: HFUSE = DD
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+atmega168_isp: LFUSE = FF
+# 512 byte boot
+atmega168_isp: EFUSE = 04
+atmega168_isp: isp
+
+diecimila: TARGET = diecimila
+diecimila: MCU_TARGET = atmega168
+diecimila: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+diecimila: AVR_FREQ = 16000000L
+diecimila: $(PROGRAM)_diecimila.hex
+diecimila: $(PROGRAM)_diecimila.lst
+
+diecimila_isp: diecimila
+diecimila_isp: TARGET = diecimila
+# 2.7V brownout
+diecimila_isp: HFUSE = DD
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+diecimila_isp: LFUSE = FF
+# 512 byte boot
+diecimila_isp: EFUSE = 04
+diecimila_isp: isp
+
+atmega328: TARGET = atmega328
+atmega328: MCU_TARGET = atmega328p
+atmega328: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+atmega328: AVR_FREQ = 16000000L
+atmega328: LDSECTIONS = -Wl,--section-start=.text=0x7e00 -Wl,--section-start=.version=0x7ffe
+atmega328: $(PROGRAM)_atmega328.hex
+atmega328: $(PROGRAM)_atmega328.lst
+
+atmega328_isp: atmega328
+atmega328_isp: TARGET = atmega328
+atmega328_isp: MCU_TARGET = atmega328p
+# 512 byte boot, SPIEN
+atmega328_isp: HFUSE = DE
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+atmega328_isp: LFUSE = FF
+# 2.7V brownout
+atmega328_isp: EFUSE = 05
+atmega328_isp: isp
+
+atmega1284: TARGET = atmega1284p
+atmega1284: MCU_TARGET = atmega1284p
+atmega1284: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200' '-DBIGBOOT'
+atmega1284: AVR_FREQ = 16000000L
+atmega1284: LDSECTIONS = -Wl,--section-start=.text=0x1fc00
+atmega1284: $(PROGRAM)_atmega1284p.hex
+atmega1284: $(PROGRAM)_atmega1284p.lst
+
+atmega1284_isp: atmega1284
+atmega1284_isp: TARGET = atmega1284p
+atmega1284_isp: MCU_TARGET = atmega1284p
+# 1024 byte boot
+atmega1284_isp: HFUSE = DE
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+atmega1284_isp: LFUSE = FF
+# 2.7V brownout
+atmega1284_isp: EFUSE = FD
+atmega1284_isp: isp
+
+# Sanguino has a minimum boot size of 1024 bytes, so enable extra functions
+#
+sanguino: TARGET = atmega644p
+sanguino: MCU_TARGET = atmega644p
+sanguino: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200' '-DBIGBOOT'
+sanguino: AVR_FREQ = 16000000L
+sanguino: LDSECTIONS = -Wl,--section-start=.text=0xfc00
+sanguino: $(PROGRAM)_atmega644p.hex
+sanguino: $(PROGRAM)_atmega644p.lst
+
+sanguino_isp: sanguino
+sanguino_isp: TARGET = atmega644p
+sanguino_isp: MCU_TARGET = atmega644p
+# 1024 byte boot
+sanguino_isp: HFUSE = DE
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+sanguino_isp: LFUSE = FF
+# 2.7V brownout
+sanguino_isp: EFUSE = 05
+sanguino_isp: isp
+
+# Mega has a minimum boot size of 1024 bytes, so enable extra functions
+#mega: TARGET = atmega1280
+mega: MCU_TARGET = atmega1280
+mega: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200' '-DBIGBOOT'
+mega: AVR_FREQ = 16000000L
+mega: LDSECTIONS = -Wl,--section-start=.text=0x1fc00
+mega: $(PROGRAM)_atmega1280.hex
+mega: $(PROGRAM)_atmega1280.lst
+
+mega_isp: mega
+mega_isp: TARGET = atmega1280
+mega_isp: MCU_TARGET = atmega1280
+# 1024 byte boot
+mega_isp: HFUSE = DE
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+mega_isp: LFUSE = FF
+# 2.7V brownout
+mega_isp: EFUSE = 05
+mega_isp: isp
+
+# ATmega8
+#
+atmega8: TARGET = atmega8
+atmega8: MCU_TARGET = atmega8
+atmega8: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+atmega8: AVR_FREQ = 16000000L
+atmega8: LDSECTIONS = -Wl,--section-start=.text=0x1e00 -Wl,--section-start=.version=0x1ffe
+atmega8: $(PROGRAM)_atmega8.hex
+atmega8: $(PROGRAM)_atmega8.lst
+
+atmega8_isp: atmega8
+atmega8_isp: TARGET = atmega8
+atmega8_isp: MCU_TARGET = atmega8
+# SPIEN, CKOPT, Bootsize=512B
+atmega8_isp: HFUSE = CC
+# 2.7V brownout, Low power xtal (16MHz) 16KCK/14CK+65ms
+atmega8_isp: LFUSE = BF
+atmega8_isp: isp
+
+# ATmega88
+#
+atmega88: TARGET = atmega88
+atmega88: MCU_TARGET = atmega88
+atmega88: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+atmega88: AVR_FREQ = 16000000L
+atmega88: LDSECTIONS = -Wl,--section-start=.text=0x1e00 -Wl,--section-start=.version=0x1ffe
+atmega88: $(PROGRAM)_atmega88.hex
+atmega88: $(PROGRAM)_atmega88.lst
+
+atmega88_isp: atmega88
+atmega88_isp: TARGET = atmega88
+atmega88_isp: MCU_TARGET = atmega88
+# 2.7V brownout
+atmega88_isp: HFUSE = DD
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+atemga88_isp: LFUSE = FF
+# 512 byte boot
+atmega88_isp: EFUSE = 04
+atmega88_isp: isp
+
+
+# 8MHz clocked platforms
+#
+# These are capable of 115200 baud
+#
+
+lilypad: TARGET = lilypad
+lilypad: MCU_TARGET = atmega168
+lilypad: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+lilypad: AVR_FREQ = 8000000L
+lilypad: $(PROGRAM)_lilypad.hex
+lilypad: $(PROGRAM)_lilypad.lst
+
+lilypad_isp: lilypad
+lilypad_isp: TARGET = lilypad
+# 2.7V brownout
+lilypad_isp: HFUSE = DD
+# Internal 8MHz osc (8MHz) Slow rising power
+lilypad_isp: LFUSE = E2
+# 512 byte boot
+lilypad_isp: EFUSE = 04
+lilypad_isp: isp
+
+lilypad_resonator: TARGET = lilypad_resonator
+lilypad_resonator: MCU_TARGET = atmega168
+lilypad_resonator: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+lilypad_resonator: AVR_FREQ = 8000000L
+lilypad_resonator: $(PROGRAM)_lilypad_resonator.hex
+lilypad_resonator: $(PROGRAM)_lilypad_resonator.lst
+
+lilypad_resonator_isp: lilypad_resonator
+lilypad_resonator_isp: TARGET = lilypad_resonator
+# 2.7V brownout
+lilypad_resonator_isp: HFUSE = DD
+# Full swing xtal (20MHz) 258CK/14CK+4.1ms
+lilypad_resonator_isp: LFUSE = C6
+# 512 byte boot
+lilypad_resonator_isp: EFUSE = 04
+lilypad_resonator_isp: isp
+
+pro8: TARGET = pro_8MHz
+pro8: MCU_TARGET = atmega168
+pro8: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+pro8: AVR_FREQ = 8000000L
+pro8: $(PROGRAM)_pro_8MHz.hex
+pro8: $(PROGRAM)_pro_8MHz.lst
+
+pro8_isp: pro8
+pro8_isp: TARGET = pro_8MHz
+# 2.7V brownout
+pro8_isp: HFUSE = DD
+# Full swing xtal (20MHz) 258CK/14CK+4.1ms
+pro8_isp: LFUSE = C6
+# 512 byte boot
+pro8_isp: EFUSE = 04
+pro8_isp: isp
+
+atmega328_pro8: TARGET = atmega328_pro_8MHz
+atmega328_pro8: MCU_TARGET = atmega328p
+atmega328_pro8: CFLAGS += '-DLED_START_FLASHES=3' '-DBAUD_RATE=115200'
+atmega328_pro8: AVR_FREQ = 8000000L
+atmega328_pro8: LDSECTIONS = -Wl,--section-start=.text=0x7e00 -Wl,--section-start=.version=0x7ffe
+atmega328_pro8: $(PROGRAM)_atmega328_pro_8MHz.hex
+atmega328_pro8: $(PROGRAM)_atmega328_pro_8MHz.lst
+
+atmega328_pro8_isp: atmega328_pro8
+atmega328_pro8_isp: TARGET = atmega328_pro_8MHz
+atmega328_pro8_isp: MCU_TARGET = atmega328p
+# 512 byte boot, SPIEN
+atmega328_pro8_isp: HFUSE = DE
+# Low power xtal (16MHz) 16KCK/14CK+65ms
+atmega328_pro8_isp: LFUSE = FF
+# 2.7V brownout
+atmega328_pro8_isp: EFUSE = 05
+atmega328_pro8_isp: isp
+
+# 1MHz clocked platforms
+#
+# These are capable of 9600 baud
+#
+
+luminet: TARGET = luminet
+luminet: MCU_TARGET = attiny84
+luminet: CFLAGS += '-DLED_START_FLASHES=3' '-DSOFT_UART' '-DBAUD_RATE=9600'
+luminet: CFLAGS += '-DVIRTUAL_BOOT_PARTITION'
+luminet: AVR_FREQ = 1000000L
+luminet: LDSECTIONS = -Wl,--section-start=.text=0x1d00 -Wl,--section-start=.version=0x1efe
+luminet: $(PROGRAM)_luminet.hex
+luminet: $(PROGRAM)_luminet.lst
+
+luminet_isp: luminet
+luminet_isp: TARGET = luminet
+luminet_isp: MCU_TARGET = attiny84
+# Brownout disabled
+luminet_isp: HFUSE = DF
+# 1MHz internal oscillator, slowly rising power
+luminet_isp: LFUSE = 62
+# Self-programming enable
+luminet_isp: EFUSE = FE
+luminet_isp: isp
+
+#
+# Generic build instructions
+#
+#
+
+isp: $(TARGET)
+ $(ISPFUSES)
+ $(ISPFLASH)
+
+isp-stk500: $(PROGRAM)_$(TARGET).hex
+ $(STK500-1)
+ $(STK500-2)
+
+%.elf: $(OBJ)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
+ $(SIZE) $@
+
+clean:
+ rm -rf *.o *.elf *.lst *.map *.sym *.lss *.eep *.srec *.bin *.hex
+
+%.lst: %.elf
+ $(OBJDUMP) -h -S $< > $@
+
+%.hex: %.elf
+ $(OBJCOPY) -j .text -j .data -j .version --set-section-flags .version=alloc,load -O ihex $< $@
+
+%.srec: %.elf
+ $(OBJCOPY) -j .text -j .data -j .version --set-section-flags .version=alloc,load -O srec $< $@
+
+%.bin: %.elf
+ $(OBJCOPY) -j .text -j .data -j .version --set-section-flags .version=alloc,load -O binary $< $@
View
848 ArduinoAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/boot.h
@@ -0,0 +1,848 @@
+/* Modified to use out for SPM access
+** Peter Knight, Optiboot project http://optiboot.googlecode.com
+**
+** Todo: Tidy up
+**
+** "_short" routines execute 1 cycle faster and use 1 less word of flash
+** by using "out" instruction instead of "sts".
+**
+** Additional elpm variants that trust the value of RAMPZ
+*/
+
+/* Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 Eric B. Weddington
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name of the copyright holders nor the names of
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE. */
+
+/* $Id: boot.h,v 1.27.2.3 2008/09/30 13:58:48 arcanum Exp $ */
+
+#ifndef _AVR_BOOT_H_
+#define _AVR_BOOT_H_ 1
+
+/** \file */
+/** \defgroup avr_boot <avr/boot.h>: Bootloader Support Utilities
+ \code
+ #include <avr/io.h>
+ #include <avr/boot.h>
+ \endcode
+
+ The macros in this module provide a C language interface to the
+ bootloader support functionality of certain AVR processors. These
+ macros are designed to work with all sizes of flash memory.
+
+ Global interrupts are not automatically disabled for these macros. It
+ is left up to the programmer to do this. See the code example below.
+ Also see the processor datasheet for caveats on having global interrupts
+ enabled during writing of the Flash.
+
+ \note Not all AVR processors provide bootloader support. See your
+ processor datasheet to see if it provides bootloader support.
+
+ \todo From email with Marek: On smaller devices (all except ATmega64/128),
+ __SPM_REG is in the I/O space, accessible with the shorter "in" and "out"
+ instructions - since the boot loader has a limited size, this could be an
+ important optimization.
+
+ \par API Usage Example
+ The following code shows typical usage of the boot API.
+
+ \code
+ #include <inttypes.h>
+ #include <avr/interrupt.h>
+ #include <avr/pgmspace.h>
+
+ void boot_program_page (uint32_t page, uint8_t *buf)
+ {
+ uint16_t i;
+ uint8_t sreg;
+
+ // Disable interrupts.
+
+ sreg = SREG;
+ cli();
+
+ eeprom_busy_wait ();
+
+ boot_page_erase (page);
+ boot_spm_busy_wait (); // Wait until the memory is erased.
+
+ for (i=0; i<SPM_PAGESIZE; i+=2)
+ {
+ // Set up little-endian word.
+
+ uint16_t w = *buf++;
+ w += (*buf++) << 8;
+
+ boot_page_fill (page + i, w);
+ }
+
+ boot_page_write (page); // Store buffer in flash page.
+ boot_spm_busy_wait(); // Wait until the memory is written.
+
+ // Reenable RWW-section again. We need this if we want to jump back
+ // to the application after bootloading.
+
+ boot_rww_enable ();
+
+ // Re-enable interrupts (if they were ever enabled).
+
+ SREG = sreg;
+ }\endcode */
+
+#include <avr/eeprom.h>
+#include <avr/io.h>
+#include <inttypes.h>
+#include <limits.h>
+
+/* Check for SPM Control Register in processor. */
+#if defined (SPMCSR)
+# define __SPM_REG SPMCSR
+#elif defined (SPMCR)
+# define __SPM_REG SPMCR
+#else
+# error AVR processor does not provide bootloader support!
+#endif
+
+
+/* Check for SPM Enable bit. */
+#if defined(SPMEN)
+# define __SPM_ENABLE SPMEN
+#elif defined(SELFPRGEN)
+# define __SPM_ENABLE SELFPRGEN
+#else
+# error Cannot find SPM Enable bit definition!
+#endif
+
+/** \ingroup avr_boot
+ \def BOOTLOADER_SECTION
+
+ Used to declare a function or variable to be placed into a
+ new section called .bootloader. This section and its contents
+ can then be relocated to any address (such as the bootloader
+ NRWW area) at link-time. */
+
+#define BOOTLOADER_SECTION __attribute__ ((section (".bootloader")))
+
+/* Create common bit definitions. */
+#ifdef ASB
+#define __COMMON_ASB ASB
+#else
+#define __COMMON_ASB RWWSB
+#endif
+
+#ifdef ASRE
+#define __COMMON_ASRE ASRE
+#else
+#define __COMMON_ASRE RWWSRE
+#endif
+
+/* Define the bit positions of the Boot Lock Bits. */
+
+#define BLB12 5
+#define BLB11 4
+#define BLB02 3
+#define BLB01 2
+
+/** \ingroup avr_boot
+ \def boot_spm_interrupt_enable()
+ Enable the SPM interrupt. */
+
+#define boot_spm_interrupt_enable() (__SPM_REG |= (uint8_t)_BV(SPMIE))
+
+/** \ingroup avr_boot
+ \def boot_spm_interrupt_disable()
+ Disable the SPM interrupt. */
+
+#define boot_spm_interrupt_disable() (__SPM_REG &= (uint8_t)~_BV(SPMIE))
+
+/** \ingroup avr_boot
+ \def boot_is_spm_interrupt()
+ Check if the SPM interrupt is enabled. */
+
+#define boot_is_spm_interrupt() (__SPM_REG & (uint8_t)_BV(SPMIE))
+
+/** \ingroup avr_boot
+ \def boot_rww_busy()
+ Check if the RWW section is busy. */
+
+#define boot_rww_busy() (__SPM_REG & (uint8_t)_BV(__COMMON_ASB))
+
+/** \ingroup avr_boot
+ \def boot_spm_busy()
+ Check if the SPM instruction is busy. */
+
+#define boot_spm_busy() (__SPM_REG & (uint8_t)_BV(__SPM_ENABLE))
+
+/** \ingroup avr_boot
+ \def boot_spm_busy_wait()
+ Wait while the SPM instruction is busy. */
+
+#define boot_spm_busy_wait() do{}while(boot_spm_busy())
+
+#define __BOOT_PAGE_ERASE (_BV(__SPM_ENABLE) | _BV(PGERS))
+#define __BOOT_PAGE_WRITE (_BV(__SPM_ENABLE) | _BV(PGWRT))
+#define __BOOT_PAGE_FILL _BV(__SPM_ENABLE)
+#define __BOOT_RWW_ENABLE (_BV(__SPM_ENABLE) | _BV(__COMMON_ASRE))
+#define __BOOT_LOCK_BITS_SET (_BV(__SPM_ENABLE) | _BV(BLBSET))
+
+#define __boot_page_fill_short(address, data) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r0, %3\n\t" \
+ "out %0, %1\n\t" \
+ "spm\n\t" \
+ "clr r1\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_FILL), \
+ "z" ((uint16_t)address), \
+ "r" ((uint16_t)data) \
+ : "r0" \
+ ); \
+}))
+
+#define __boot_page_fill_normal(address, data) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r0, %3\n\t" \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ "clr r1\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_FILL), \
+ "z" ((uint16_t)address), \
+ "r" ((uint16_t)data) \
+ : "r0" \
+ ); \
+}))
+
+#define __boot_page_fill_alternate(address, data)\
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r0, %3\n\t" \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ ".word 0xffff\n\t" \
+ "nop\n\t" \
+ "clr r1\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_FILL), \
+ "z" ((uint16_t)address), \
+ "r" ((uint16_t)data) \
+ : "r0" \
+ ); \
+}))
+
+#define __boot_page_fill_extended(address, data) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r0, %4\n\t" \
+ "movw r30, %A3\n\t" \
+ "sts %1, %C3\n\t" \
+ "sts %0, %2\n\t" \
+ "spm\n\t" \
+ "clr r1\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "i" (_SFR_MEM_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_FILL), \
+ "r" ((uint32_t)address), \
+ "r" ((uint16_t)data) \
+ : "r0", "r30", "r31" \
+ ); \
+}))
+
+#define __boot_page_fill_extended_short(address, data) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r0, %4\n\t" \
+ "movw r30, %A3\n\t" \
+ "out %1, %C3\n\t" \
+ "out %0, %2\n\t" \
+ "spm\n\t" \
+ "clr r1\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "i" (_SFR_IO_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_FILL), \
+ "r" ((uint32_t)address), \
+ "r" ((uint16_t)data) \
+ : "r0", "r30", "r31" \
+ ); \
+}))
+
+#define __boot_page_erase_short(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "out %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_ERASE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+
+#define __boot_page_erase_normal(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_ERASE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+#define __boot_page_erase_alternate(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ ".word 0xffff\n\t" \
+ "nop\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_ERASE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+#define __boot_page_erase_extended(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r30, %A3\n\t" \
+ "sts %1, %C3\n\t" \
+ "sts %0, %2\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "i" (_SFR_MEM_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_ERASE), \
+ "r" ((uint32_t)address) \
+ : "r30", "r31" \
+ ); \
+}))
+#define __boot_page_erase_extended_short(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r30, %A3\n\t" \
+ "out %1, %C3\n\t" \
+ "out %0, %2\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "i" (_SFR_IO_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_ERASE), \
+ "r" ((uint32_t)address) \
+ : "r30", "r31" \
+ ); \
+}))
+
+#define __boot_page_write_short(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "out %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_WRITE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+#define __boot_page_write_normal(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_WRITE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+#define __boot_page_write_alternate(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ ".word 0xffff\n\t" \
+ "nop\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_PAGE_WRITE), \
+ "z" ((uint16_t)address) \
+ ); \
+}))
+
+#define __boot_page_write_extended(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r30, %A3\n\t" \
+ "sts %1, %C3\n\t" \
+ "sts %0, %2\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "i" (_SFR_MEM_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_WRITE), \
+ "r" ((uint32_t)address) \
+ : "r30", "r31" \
+ ); \
+}))
+#define __boot_page_write_extended_short(address) \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "movw r30, %A3\n\t" \
+ "out %1, %C3\n\t" \
+ "out %0, %2\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "i" (_SFR_IO_ADDR(RAMPZ)), \
+ "r" ((uint8_t)__BOOT_PAGE_WRITE), \
+ "r" ((uint32_t)address) \
+ : "r30", "r31" \
+ ); \
+}))
+
+#define __boot_rww_enable_short() \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "out %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_RWW_ENABLE) \
+ ); \
+}))
+
+#define __boot_rww_enable() \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_RWW_ENABLE) \
+ ); \
+}))
+
+#define __boot_rww_enable_alternate() \
+(__extension__({ \
+ __asm__ __volatile__ \
+ ( \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ ".word 0xffff\n\t" \
+ "nop\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_RWW_ENABLE) \
+ ); \
+}))
+
+/* From the mega16/mega128 data sheets (maybe others):
+
+ Bits by SPM To set the Boot Loader Lock bits, write the desired data to
+ R0, write "X0001001" to SPMCR and execute SPM within four clock cycles
+ after writing SPMCR. The only accessible Lock bits are the Boot Lock bits
+ that may prevent the Application and Boot Loader section from any
+ software update by the MCU.
+
+ If bits 5..2 in R0 are cleared (zero), the corresponding Boot Lock bit
+ will be programmed if an SPM instruction is executed within four cycles
+ after BLBSET and SPMEN (or SELFPRGEN) are set in SPMCR. The Z-pointer is
+ don't care during this operation, but for future compatibility it is
+ recommended to load the Z-pointer with $0001 (same as used for reading the
+ Lock bits). For future compatibility It is also recommended to set bits 7,
+ 6, 1, and 0 in R0 to 1 when writing the Lock bits. When programming the
+ Lock bits the entire Flash can be read during the operation. */
+
+#define __boot_lock_bits_set_short(lock_bits) \
+(__extension__({ \
+ uint8_t value = (uint8_t)(~(lock_bits)); \
+ __asm__ __volatile__ \
+ ( \
+ "ldi r30, 1\n\t" \
+ "ldi r31, 0\n\t" \
+ "mov r0, %2\n\t" \
+ "out %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_LOCK_BITS_SET), \
+ "r" (value) \
+ : "r0", "r30", "r31" \
+ ); \
+}))
+
+#define __boot_lock_bits_set(lock_bits) \
+(__extension__({ \
+ uint8_t value = (uint8_t)(~(lock_bits)); \
+ __asm__ __volatile__ \
+ ( \
+ "ldi r30, 1\n\t" \
+ "ldi r31, 0\n\t" \
+ "mov r0, %2\n\t" \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_LOCK_BITS_SET), \
+ "r" (value) \
+ : "r0", "r30", "r31" \
+ ); \
+}))
+
+#define __boot_lock_bits_set_alternate(lock_bits) \
+(__extension__({ \
+ uint8_t value = (uint8_t)(~(lock_bits)); \
+ __asm__ __volatile__ \
+ ( \
+ "ldi r30, 1\n\t" \
+ "ldi r31, 0\n\t" \
+ "mov r0, %2\n\t" \
+ "sts %0, %1\n\t" \
+ "spm\n\t" \
+ ".word 0xffff\n\t" \
+ "nop\n\t" \
+ : \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_LOCK_BITS_SET), \
+ "r" (value) \
+ : "r0", "r30", "r31" \
+ ); \
+}))
+
+/*
+ Reading lock and fuse bits:
+
+ Similarly to writing the lock bits above, set BLBSET and SPMEN (or
+ SELFPRGEN) bits in __SPMREG, and then (within four clock cycles) issue an
+ LPM instruction.
+
+ Z address: contents:
+ 0x0000 low fuse bits
+ 0x0001 lock bits
+ 0x0002 extended fuse bits
+ 0x0003 high fuse bits
+
+ Sounds confusing, doesn't it?
+
+ Unlike the macros in pgmspace.h, no need to care for non-enhanced
+ cores here as these old cores do not provide SPM support anyway.
+ */
+
+/** \ingroup avr_boot
+ \def GET_LOW_FUSE_BITS
+ address to read the low fuse bits, using boot_lock_fuse_bits_get
+ */
+#define GET_LOW_FUSE_BITS (0x0000)
+/** \ingroup avr_boot
+ \def GET_LOCK_BITS
+ address to read the lock bits, using boot_lock_fuse_bits_get
+ */
+#define GET_LOCK_BITS (0x0001)
+/** \ingroup avr_boot
+ \def GET_EXTENDED_FUSE_BITS
+ address to read the extended fuse bits, using boot_lock_fuse_bits_get
+ */
+#define GET_EXTENDED_FUSE_BITS (0x0002)
+/** \ingroup avr_boot
+ \def GET_HIGH_FUSE_BITS
+ address to read the high fuse bits, using boot_lock_fuse_bits_get
+ */
+#define GET_HIGH_FUSE_BITS (0x0003)
+
+/** \ingroup avr_boot
+ \def boot_lock_fuse_bits_get(address)
+
+ Read the lock or fuse bits at \c address.
+
+ Parameter \c address can be any of GET_LOW_FUSE_BITS,
+ GET_LOCK_BITS, GET_EXTENDED_FUSE_BITS, or GET_HIGH_FUSE_BITS.
+
+ \note The lock and fuse bits returned are the physical values,
+ i.e. a bit returned as 0 means the corresponding fuse or lock bit
+ is programmed.
+ */
+#define boot_lock_fuse_bits_get_short(address) \
+(__extension__({ \
+ uint8_t __result; \
+ __asm__ __volatile__ \
+ ( \
+ "ldi r30, %3\n\t" \
+ "ldi r31, 0\n\t" \
+ "out %1, %2\n\t" \
+ "lpm %0, Z\n\t" \
+ : "=r" (__result) \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_LOCK_BITS_SET), \
+ "M" (address) \
+ : "r0", "r30", "r31" \
+ ); \
+ __result; \
+}))
+
+#define boot_lock_fuse_bits_get(address) \
+(__extension__({ \
+ uint8_t __result; \
+ __asm__ __volatile__ \
+ ( \
+ "ldi r30, %3\n\t" \
+ "ldi r31, 0\n\t" \
+ "sts %1, %2\n\t" \
+ "lpm %0, Z\n\t" \
+ : "=r" (__result) \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t)__BOOT_LOCK_BITS_SET), \
+ "M" (address) \
+ : "r0", "r30", "r31" \
+ ); \
+ __result; \
+}))
+
+/** \ingroup avr_boot
+ \def boot_signature_byte_get(address)
+
+ Read the Signature Row byte at \c address. For some MCU types,
+ this function can also retrieve the factory-stored oscillator
+ calibration bytes.
+
+ Parameter \c address can be 0-0x1f as documented by the datasheet.
+ \note The values are MCU type dependent.
+*/
+
+#define __BOOT_SIGROW_READ (_BV(__SPM_ENABLE) | _BV(SIGRD))
+
+#define boot_signature_byte_get_short(addr) \
+(__extension__({ \
+ uint16_t __addr16 = (uint16_t)(addr); \
+ uint8_t __result; \
+ __asm__ __volatile__ \
+ ( \
+ "out %1, %2\n\t" \
+ "lpm %0, Z" "\n\t" \
+ : "=r" (__result) \
+ : "i" (_SFR_IO_ADDR(__SPM_REG)), \
+ "r" ((uint8_t) __BOOT_SIGROW_READ), \
+ "z" (__addr16) \
+ ); \
+ __result; \
+}))
+
+#define boot_signature_byte_get(addr) \
+(__extension__({ \
+ uint16_t __addr16 = (uint16_t)(addr); \
+ uint8_t __result; \
+ __asm__ __volatile__ \
+ ( \
+ "sts %1, %2\n\t" \
+ "lpm %0, Z" "\n\t" \
+ : "=r" (__result) \
+ : "i" (_SFR_MEM_ADDR(__SPM_REG)), \
+ "r" ((uint8_t) __BOOT_SIGROW_READ), \
+ "z" (__addr16) \
+ ); \
+ __result; \
+}))
+
+/** \ingroup avr_boot
+ \def boot_page_fill(address, data)
+
+ Fill the bootloader temporary page buffer for flash
+ address with data word.
+
+ \note The address is a byte address. The data is a word. The AVR
+ writes data to the buffer a word at a time, but addresses the buffer
+ per byte! So, increment your address by 2 between calls, and send 2
+ data bytes in a word format! The LSB of the data is written to the lower
+ address; the MSB of the data is written to the higher address.*/
+
+/** \ingroup avr_boot
+ \def boot_page_erase(address)
+
+ Erase the flash page that contains address.
+
+ \note address is a byte address in flash, not a word address. */
+
+/** \ingroup avr_boot
+ \def boot_page_write(address)
+
+ Write the bootloader temporary page buffer
+ to flash page that contains address.
+
+ \note address is a byte address in flash, not a word address. */
+
+/** \ingroup avr_boot
+ \def boot_rww_enable()
+
+ Enable the Read-While-Write memory section. */
+
+/** \ingroup avr_boot
+ \def boot_lock_bits_set(lock_bits)
+
+ Set the bootloader lock bits.
+
+ \param lock_bits A mask of which Boot Loader Lock Bits to set.
+
+ \note In this context, a 'set bit' will be written to a zero value.
+ Note also that only BLBxx bits can be programmed by this command.
+
+ For example, to disallow the SPM instruction from writing to the Boot
+ Loader memory section of flash, you would use this macro as such:
+
+ \code
+ boot_lock_bits_set (_BV (BLB11));
+ \endcode
+
+ \note Like any lock bits, the Boot Loader Lock Bits, once set,
+ cannot be cleared again except by a chip erase which will in turn
+ also erase the boot loader itself. */
+
+/* Normal versions of the macros use 16-bit addresses.
+ Extended versions of the macros use 32-bit addresses.
+ Alternate versions of the macros use 16-bit addresses and require special
+ instruction sequences after LPM.
+
+ FLASHEND is defined in the ioXXXX.h file.
+ USHRT_MAX is defined in <limits.h>. */
+
+#if defined(__AVR_ATmega161__) || defined(__AVR_ATmega163__) \
+ || defined(__AVR_ATmega323__)
+
+/* Alternate: ATmega161/163/323 and 16 bit address */
+#define boot_page_fill(address, data) __boot_page_fill_alternate(address, data)
+#define boot_page_erase(address) __boot_page_erase_alternate(address)
+#define boot_page_write(address) __boot_page_write_alternate(address)
+#define boot_rww_enable() __boot_rww_enable_alternate()
+#define boot_lock_bits_set(lock_bits) __boot_lock_bits_set_alternate(lock_bits)
+
+#elif (FLASHEND > USHRT_MAX)
+
+/* Extended: >16 bit address */
+#define boot_page_fill(address, data) __boot_page_fill_extended_short(address, data)
+#define boot_page_erase(address) __boot_page_erase_extended_short(address)
+#define boot_page_write(address) __boot_page_write_extended_short(address)
+#define boot_rww_enable() __boot_rww_enable_short()
+#define boot_lock_bits_set(lock_bits) __boot_lock_bits_set_short(lock_bits)
+
+#else
+
+/* Normal: 16 bit address */
+#define boot_page_fill(address, data) __boot_page_fill_short(address, data)
+#define boot_page_erase(address) __boot_page_erase_short(address)
+#define boot_page_write(address) __boot_page_write_short(address)
+#define boot_rww_enable() __boot_rww_enable_short()
+#define boot_lock_bits_set(lock_bits) __boot_lock_bits_set_short(lock_bits)
+
+#endif
+
+/** \ingroup avr_boot
+
+ Same as boot_page_fill() except it waits for eeprom and spm operations to
+ complete before filling the page. */
+
+#define boot_page_fill_safe(address, data) \
+do { \
+ boot_spm_busy_wait(); \
+ eeprom_busy_wait(); \
+ boot_page_fill(address, data); \
+} while (0)
+
+/** \ingroup avr_boot
+
+ Same as boot_page_erase() except it waits for eeprom and spm operations to
+ complete before erasing the page. */
+
+#define boot_page_erase_safe(address) \
+do { \
+ boot_spm_busy_wait(); \
+ eeprom_busy_wait(); \
+ boot_page_erase (address); \
+} while (0)
+
+/** \ingroup avr_boot
+
+ Same as boot_page_write() except it waits for eeprom and spm operations to
+ complete before writing the page. */
+
+#define boot_page_write_safe(address) \
+do { \
+ boot_spm_busy_wait(); \
+ eeprom_busy_wait(); \
+ boot_page_write (address); \
+} while (0)
+
+/** \ingroup avr_boot
+
+ Same as boot_rww_enable() except waits for eeprom and spm operations to
+ complete before enabling the RWW mameory. */
+
+#define boot_rww_enable_safe() \
+do { \
+ boot_spm_busy_wait(); \
+ eeprom_busy_wait(); \
+ boot_rww_enable(); \
+} while (0)
+
+/** \ingroup avr_boot
+
+ Same as boot_lock_bits_set() except waits for eeprom and spm operations to
+ complete before setting the lock bits. */
+
+#define boot_lock_bits_set_safe(lock_bits) \
+do { \
+ boot_spm_busy_wait(); \
+ eeprom_busy_wait(); \
+ boot_lock_bits_set (lock_bits); \
+} while (0)
+
+#endif /* _AVR_BOOT_H_ */
View
724 ArduinoAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/optiboot.c
@@ -0,0 +1,724 @@
+/**********************************************************/
+/* -Wl,-section-start=bootloader=0x1fc00 */
+/* Optiboot bootloader for Arduino */
+/* */
+/* http://optiboot.googlecode.com */
+/* */
+/* Arduino-maintained version : See README.TXT */
+/* http://code.google.com/p/arduino/ */
+/* */
+/* Heavily optimised bootloader that is faster and */
+/* smaller than the Arduino standard bootloader */
+/* */
+/* Enhancements: */
+/* Fits in 512 bytes, saving 1.5K of code space */
+/* Background page erasing speeds up programming */
+/* Higher baud rate speeds up programming */
+/* Written almost entirely in C */
+/* Customisable timeout with accurate timeconstant */
+/* Optional virtual UART. No hardware UART required. */
+/* Optional virtual boot partition for devices without. */
+/* */
+/* What you lose: */
+/* Implements a skeleton STK500 protocol which is */
+/* missing several features including EEPROM */
+/* programming and non-page-aligned writes */
+/* High baud rate breaks compatibility with standard */
+/* Arduino flash settings */
+/* */
+/* Fully supported: */
+/* ATmega168 based devices (Diecimila etc) */
+/* ATmega328P based devices (Duemilanove etc) */
+/* */
+/* Alpha test */
+/* ATmega1280 based devices (Arduino Mega) */
+/* */
+/* Work in progress: */
+/* ATmega644P based devices (Sanguino) */
+/* ATtiny84 based devices (Luminet) */
+/* */
+/* Does not support: */
+/* USB based devices (eg. Teensy) */
+/* */
+/* Assumptions: */
+/* The code makes several assumptions that reduce the */
+/* code size. They are all true after a hardware reset, */
+/* but may not be true if the bootloader is called by */
+/* other means or on other hardware. */
+/* No interrupts can occur */
+/* UART and Timer 1 are set to their reset state */
+/* SP points to RAMEND */
+/* */
+/* Code builds on code, libraries and optimisations from: */
+/* stk500boot.c by Jason P. Kyle */
+/* Arduino bootloader http://arduino.cc */
+/* Spiff's 1K bootloader http://spiffie.org/know/arduino_1k_bootloader/bootloader.shtml */
+/* avr-libc project http://nongnu.org/avr-libc */
+/* Adaboot http://www.ladyada.net/library/arduino/bootloader.html */
+/* AVR305 Atmel Application Note */
+/* */
+/* This program is free software; you can redistribute it */
+/* and/or modify it under the terms of the GNU General */
+/* Public License as published by the Free Software */
+/* Foundation; either version 2 of the License, or */
+/* (at your option) any later version. */
+/* */
+/* This program is distributed in the hope that it will */
+/* be useful, but WITHOUT ANY WARRANTY; without even the */
+/* implied warranty of MERCHANTABILITY or FITNESS FOR A */
+/* PARTICULAR PURPOSE. See the GNU General Public */
+/* License for more details. */
+/* */
+/* You should have received a copy of the GNU General */
+/* Public License along with this program; if not, write */
+/* to the Free Software Foundation, Inc., */
+/* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+/* */
+/* Licence can be viewed at */
+/* http://www.fsf.org/licenses/gpl.txt */
+/* */
+/**********************************************************/
+
+
+/**********************************************************/
+/* */
+/* Optional defines: */
+/* */
+/**********************************************************/
+/* */
+/* BIG_BOOT: */
+/* Build a 1k bootloader, not 512 bytes. This turns on */
+/* extra functionality. */
+/* */
+/* BAUD_RATE: */
+/* Set bootloader baud rate. */
+/* */
+/* LUDICROUS_SPEED: */
+/* 230400 baud :-) */
+/* */
+/* SOFT_UART: */
+/* Use AVR305 soft-UART instead of hardware UART. */
+/* */
+/* LED_START_FLASHES: */
+/* Number of LED flashes on bootup. */
+/* */
+/* LED_DATA_FLASH: */
+/* Flash LED when transferring data. For boards without */
+/* TX or RX LEDs, or for people who like blinky lights. */
+/* */
+/* SUPPORT_EEPROM: */
+/* Support reading and writing from EEPROM. This is not */
+/* used by Arduino, so off by default. */
+/* */
+/* TIMEOUT_MS: */
+/* Bootloader timeout period, in milliseconds. */
+/* 500,1000,2000,4000,8000 supported. */
+/* */
+/**********************************************************/
+
+/**********************************************************/
+/* Version Numbers! */
+/* */
+/* Arduino Optiboot now includes this Version number in */
+/* the source and object code. */
+/* */
+/* Version 3 was released as zip from the optiboot */
+/* repository and was distributed with Arduino 0022. */
+/* Version 4 starts with the arduino repository commit */
+/* that brought the arduino repository up-to-date with */
+/* the optiboot source tree changes since v3. */
+/* */
+/**********************************************************/
+
+/**********************************************************/
+/* Edit History: */
+/* */
+/* Jan 2012: */
+/* 4.5 WestfW: fix NRWW value for m1284. */
+/* 4.4 WestfW: use attribute OS_main instead of naked for */
+/* main(). This allows optimizations that we */
+/* count on, which are prohibited in naked */
+/* functions due to PR42240. (keeps us less */
+/* than 512 bytes when compiler is gcc4.5 */
+/* (code from 4.3.2 remains the same.) */
+/* 4.4 WestfW and Maniacbug: Add m1284 support. This */
+/* does not change the 328 binary, so the */
+/* version number didn't change either. (?) */
+/* June 2011: */
+/* 4.4 WestfW: remove automatic soft_uart detect (didn't */
+/* know what it was doing or why.) Added a */
+/* check of the calculated BRG value instead. */
+/* Version stays 4.4; existing binaries are */
+/* not changed. */
+/* 4.4 WestfW: add initialization of address to keep */
+/* the compiler happy. Change SC'ed targets. */
+/* Return the SW version via READ PARAM */
+/* 4.3 WestfW: catch framing errors in getch(), so that */
+/* AVRISP works without HW kludges. */
+/* http://code.google.com/p/arduino/issues/detail?id=368n*/
+/* 4.2 WestfW: reduce code size, fix timeouts, change */
+/* verifySpace to use WDT instead of appstart */
+/* 4.1 WestfW: put version number in binary. */
+/**********************************************************/
+
+#define OPTIBOOT_MAJVER 4
+#define OPTIBOOT_MINVER 5
+
+#define MAKESTR(a) #a
+#define MAKEVER(a, b) MAKESTR(a*256+b)
+
+asm(" .section .version\n"
+ "optiboot_version: .word " MAKEVER(OPTIBOOT_MAJVER, OPTIBOOT_MINVER) "\n"
+ " .section .text\n");
+
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+
+// <avr/boot.h> uses sts instructions, but this version uses out instructions
+// This saves cycles and program memory.
+#include "boot.h"
+
+
+// We don't use <avr/wdt.h> as those routines have interrupt overhead we don't need.
+
+#include "pin_defs.h"
+#include "stk500.h"
+
+#ifndef LED_START_FLASHES
+#define LED_START_FLASHES 0
+#endif
+
+#ifdef LUDICROUS_SPEED
+#define BAUD_RATE 230400L
+#endif
+
+/* set the UART baud rate defaults */
+#ifndef BAUD_RATE
+#if F_CPU >= 8000000L
+#define BAUD_RATE 115200L // Highest rate Avrdude win32 will support
+#elsif F_CPU >= 1000000L
+#define BAUD_RATE 9600L // 19200 also supported, but with significant error
+#elsif F_CPU >= 128000L
+#define BAUD_RATE 4800L // Good for 128kHz internal RC
+#else
+#define BAUD_RATE 1200L // Good even at 32768Hz
+#endif
+#endif
+
+#if 0
+/* Switch in soft UART for hard baud rates */
+/*
+ * I don't understand what this was supposed to accomplish, where the
+ * constant "280" came from, or why automatically (and perhaps unexpectedly)
+ * switching to a soft uart is a good thing, so I'm undoing this in favor
+ * of a range check using the same calc used to config the BRG...
+ */
+#if (F_CPU/BAUD_RATE) > 280 // > 57600 for 16MHz
+#ifndef SOFT_UART
+#define SOFT_UART
+#endif
+#endif
+#else // 0
+#if (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 > 250
+#error Unachievable baud rate (too slow) BAUD_RATE
+#endif // baud rate slow check
+#if (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 < 3
+#error Unachievable baud rate (too fast) BAUD_RATE
+#endif // baud rate fastn check
+#endif
+
+/* Watchdog settings */
+#define WATCHDOG_OFF (0)
+#define WATCHDOG_16MS (_BV(WDE))
+#define WATCHDOG_32MS (_BV(WDP0) | _BV(WDE))
+#define WATCHDOG_64MS (_BV(WDP1) | _BV(WDE))
+#define WATCHDOG_125MS (_BV(WDP1) | _BV(WDP0) | _BV(WDE))
+#define WATCHDOG_250MS (_BV(WDP2) | _BV(WDE))
+#define WATCHDOG_500MS (_BV(WDP2) | _BV(WDP0) | _BV(WDE))
+#define WATCHDOG_1S (_BV(WDP2) | _BV(WDP1) | _BV(WDE))
+#define WATCHDOG_2S (_BV(WDP2) | _BV(WDP1) | _BV(WDP0) | _BV(WDE))
+#ifndef __AVR_ATmega8__
+#define WATCHDOG_4S (_BV(WDP3) | _BV(WDE))
+#define WATCHDOG_8S (_BV(WDP3) | _BV(WDP0) | _BV(WDE))
+#endif
+
+/* Function Prototypes */
+/* The main function is in init9, which removes the interrupt vector table */
+/* we don't need. It is also 'naked', which means the compiler does not */
+/* generate any entry or exit code itself. */
+int main(void) __attribute__ ((OS_main)) __attribute__ ((section (".init9")));
+void putch(char);
+uint8_t getch(void);
+static inline void getNch(uint8_t); /* "static inline" is a compiler hint to reduce code size */
+void verifySpace();
+static inline void flash_led(uint8_t);
+uint8_t getLen();
+static inline void watchdogReset();
+void watchdogConfig(uint8_t x);
+#ifdef SOFT_UART
+void uartDelay() __attribute__ ((naked));
+#endif
+void appStart() __attribute__ ((naked));
+
+/*
+ * NRWW memory
+ * Addresses below NRWW (Non-Read-While-Write) can be programmed while
+ * continuing to run code from flash, slightly speeding up programming
+ * time. Beware that Atmel data sheets specify this as a WORD address,
+ * while optiboot will be comparing against a 16-bit byte address. This
+ * means that on a part with 128kB of memory, the upper part of the lower
+ * 64k will get NRWW processing as well, even though it doesn't need it.
+ * That's OK. In fact, you can disable the overlapping processing for
+ * a part entirely by setting NRWWSTART to zero. This reduces code
+ * space a bit, at the expense of being slightly slower, overall.
+ *
+ * RAMSTART should be self-explanatory. It's bigger on parts with a
+ * lot of peripheral registers.
+ */
+#if defined(__AVR_ATmega168__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0x3800)
+#elif defined(__AVR_ATmega328P__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0x7000)
+#elif defined (__AVR_ATmega644P__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0xE000)
+#elif defined (__AVR_ATmega1284P__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0xE000)
+#elif defined(__AVR_ATtiny84__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0x0000)
+#elif defined(__AVR_ATmega1280__)
+#define RAMSTART (0x200)
+#define NRWWSTART (0xE000)
+#elif defined(__AVR_ATmega8__) || defined(__AVR_ATmega88__)
+#define RAMSTART (0x100)
+#define NRWWSTART (0x1800)
+#endif
+
+/* C zero initialises all global variables. However, that requires */
+/* These definitions are NOT zero initialised, but that doesn't matter */
+/* This allows us to drop the zero init code, saving us memory */
+#define buff ((uint8_t*)(RAMSTART))
+#ifdef VIRTUAL_BOOT_PARTITION
+#define rstVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+4))
+#define wdtVect (*(uint16_t*)(RAMSTART+SPM_PAGESIZE*2+6))
+#endif
+
+/* main program starts here */
+int main(void) {
+ uint8_t ch;
+
+ /*
+ * Making these local and in registers prevents the need for initializing
+ * them, and also saves space because code no longer stores to memory.
+ * (initializing address keeps the compiler happy, but isn't really
+ * necessary, and uses 4 bytes of flash.)
+ */
+ register uint16_t address = 0;
+ register uint8_t length;
+
+ // After the zero init loop, this is the first code to run.
+ //
+ // This code makes the following assumptions:
+ // No interrupts will execute
+ // SP points to RAMEND
+ // r1 contains zero
+ //
+ // If not, uncomment the following instructions:
+ // cli();
+ asm volatile ("clr __zero_reg__");
+#ifdef __AVR_ATmega8__
+ SP=RAMEND; // This is done by hardware reset
+#endif
+
+ // Adaboot no-wait mod
+ ch = MCUSR;
+ MCUSR = 0;
+ if (!(ch & _BV(EXTRF))) appStart();
+
+#if LED_START_FLASHES > 0
+ // Set up Timer 1 for timeout counter
+ TCCR1B = _BV(CS12) | _BV(CS10); // div 1024
+#endif
+#ifndef SOFT_UART
+#ifdef __AVR_ATmega8__
+ UCSRA = _BV(U2X); //Double speed mode USART
+ UCSRB = _BV(RXEN) | _BV(TXEN); // enable Rx & Tx
+ UCSRC = _BV(URSEL) | _BV(UCSZ1) | _BV(UCSZ0); // config USART; 8N1
+ UBRRL = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
+#else
+ UCSR0A = _BV(U2X0); //Double speed mode USART0
+ UCSR0B = _BV(RXEN0) | _BV(TXEN0);
+ UCSR0C = _BV(UCSZ00) | _BV(UCSZ01);
+ UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
+#endif
+#endif
+
+ // Set up watchdog to trigger after 500ms
+ watchdogConfig(WATCHDOG_1S);
+
+ /* Set LED pin as output */
+ LED_DDR |= _BV(LED);
+
+#ifdef SOFT_UART
+ /* Set TX pin as output */
+ UART_DDR |= _BV(UART_TX_BIT);
+#endif
+
+#if LED_START_FLASHES > 0
+ /* Flash onboard LED to signal entering of bootloader */
+ flash_led(LED_START_FLASHES * 2);
+#endif
+
+ /* Forever loop */
+ for (;;) {
+ /* get character from UART */
+ ch = getch();
+
+ if(ch == STK_GET_PARAMETER) {
+ unsigned char which = getch();
+ verifySpace();
+ if (which == 0x82) {
+ /*
+ * Send optiboot version as "minor SW version"
+ */
+ putch(OPTIBOOT_MINVER);
+ } else if (which == 0x81) {
+ putch(OPTIBOOT_MAJVER);
+ } else {
+ /*
+ * GET PARAMETER returns a generic 0x03 reply for
+ * other parameters - enough to keep Avrdude happy
+ */
+ putch(0x03);
+ }
+ }
+ else if(ch == STK_SET_DEVICE) {
+ // SET DEVICE is ignored
+ getNch(20);
+ }
+ else if(ch == STK_SET_DEVICE_EXT) {
+ // SET DEVICE EXT is ignored
+ getNch(5);
+ }
+ else if(ch == STK_LOAD_ADDRESS) {
+ // LOAD ADDRESS
+ uint16_t newAddress;
+ newAddress = getch();
+ newAddress = (newAddress & 0xff) | (getch() << 8);
+#ifdef RAMPZ
+ // Transfer top bit to RAMPZ
+ RAMPZ = (newAddress & 0x8000) ? 1 : 0;
+#endif
+ newAddress += newAddress; // Convert from word address to byte address
+ address = newAddress;
+ verifySpace();
+ }
+ else if(ch == STK_UNIVERSAL) {
+ // UNIVERSAL command is ignored
+ getNch(4);
+ putch(0x00);
+ }
+ /* Write memory, length is big endian and is in bytes */
+ else if(ch == STK_PROG_PAGE) {
+ // PROGRAM PAGE - we support flash programming only, not EEPROM
+ uint8_t *bufPtr;
+ uint16_t addrPtr;
+
+ getch(); /* getlen() */
+ length = getch();
+ getch();
+
+ // If we are in RWW section, immediately start page erase
+ if (address < NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address);
+
+ // While that is going on, read in page contents
+ bufPtr = buff;
+ do *bufPtr++ = getch();
+ while (--length);
+
+ // If we are in NRWW section, page erase has to be delayed until now.
+ // Todo: Take RAMPZ into account
+ if (address >= NRWWSTART) __boot_page_erase_short((uint16_t)(void*)address);
+
+ // Read command terminator, start reply
+ verifySpace();
+
+ // If only a partial page is to be programmed, the erase might not be complete.
+ // So check that here
+ boot_spm_busy_wait();
+
+#ifdef VIRTUAL_BOOT_PARTITION
+ if ((uint16_t)(void*)address == 0) {
+ // This is the reset vector page. We need to live-patch the code so the
+ // bootloader runs.
+ //
+ // Move RESET vector to WDT vector
+ uint16_t vect = buff[0] | (buff[1]<<8);
+ rstVect = vect;
+ wdtVect = buff[8] | (buff[9]<<8);
+ vect -= 4; // Instruction is a relative jump (rjmp), so recalculate.
+ buff[8] = vect & 0xff;
+ buff[9] = vect >> 8;
+
+ // Add jump to bootloader at RESET vector
+ buff[0] = 0x7f;
+ buff[1] = 0xce; // rjmp 0x1d00 instruction
+ }
+#endif
+
+ // Copy buffer into programming buffer
+ bufPtr = buff;
+ addrPtr = (uint16_t)(void*)address;
+ ch = SPM_PAGESIZE / 2;
+ do {
+ uint16_t a;
+ a = *bufPtr++;
+ a |= (*bufPtr++) << 8;
+ __boot_page_fill_short((uint16_t)(void*)addrPtr,a);
+ addrPtr += 2;
+ } while (--ch);
+
+ // Write from programming buffer
+ __boot_page_write_short((uint16_t)(void*)address);
+ boot_spm_busy_wait();
+
+#if defined(RWWSRE)
+ // Reenable read access to flash
+ boot_rww_enable();
+#endif
+
+ }
+ /* Read memory block mode, length is big endian. */
+ else if(ch == STK_READ_PAGE) {
+ // READ PAGE - we only read flash
+ getch(); /* getlen() */
+ length = getch();
+ getch();
+
+ verifySpace();
+#ifdef VIRTUAL_BOOT_PARTITION
+ do {
+ // Undo vector patch in bottom page so verify passes
+ if (address == 0) ch=rstVect & 0xff;
+ else if (address == 1) ch=rstVect >> 8;
+ else if (address == 8) ch=wdtVect & 0xff;
+ else if (address == 9) ch=wdtVect >> 8;
+ else ch = pgm_read_byte_near(address);
+ address++;
+ putch(ch);
+ } while (--length);
+#else
+#ifdef RAMPZ
+// Since RAMPZ should already be set, we need to use EPLM directly.
+// do putch(pgm_read_byte_near(address++));
+// while (--length);
+ do {
+ uint8_t result;
+ __asm__ ("elpm %0,Z\n":"=r"(result):"z"(address));
+ putch(result);
+ address++;
+ }
+ while (--length);
+#else
+ do putch(pgm_read_byte_near(address++));
+ while (--length);
+#endif
+#endif
+ }
+
+ /* Get device signature bytes */
+ else if(ch == STK_READ_SIGN) {
+ // READ SIGN - return what Avrdude wants to hear
+ verifySpace();
+ putch(SIGNATURE_0);
+ putch(SIGNATURE_1);
+ putch(SIGNATURE_2);
+ }
+ else if (ch == STK_LEAVE_PROGMODE) { /* 'Q' */
+ // Adaboot no-wait mod
+ watchdogConfig(WATCHDOG_16MS);
+ verifySpace();
+ }
+ else {
+ // This covers the response to commands like STK_ENTER_PROGMODE
+ verifySpace();
+ }
+ putch(STK_OK);
+ }
+}
+
+void putch(char ch) {
+#ifndef SOFT_UART
+ while (!(UCSR0A & _BV(UDRE0)));
+ UDR0 = ch;
+#else
+ __asm__ __volatile__ (
+ " com %[ch]\n" // ones complement, carry set
+ " sec\n"
+ "1: brcc 2f\n"
+ " cbi %[uartPort],%[uartBit]\n"
+ " rjmp 3f\n"
+ "2: sbi %[uartPort],%[uartBit]\n"
+ " nop\n"
+ "3: rcall uartDelay\n"
+ " rcall uartDelay\n"
+ " lsr %[ch]\n"
+ " dec %[bitcnt]\n"
+ " brne 1b\n"
+ :
+ :
+ [bitcnt] "d" (10),
+ [ch] "r" (ch),
+ [uartPort] "I" (_SFR_IO_ADDR(UART_PORT)),
+ [uartBit] "I" (UART_TX_BIT)
+ :
+ "r25"
+ );
+#endif
+}
+
+uint8_t getch(void) {
+ uint8_t ch;
+
+#ifdef LED_DATA_FLASH
+#ifdef __AVR_ATmega8__
+ LED_PORT ^= _BV(LED);
+#else
+ LED_PIN |= _BV(LED);
+#endif
+#endif
+
+#ifdef SOFT_UART
+ __asm__ __volatile__ (
+ "1: sbic %[uartPin],%[uartBit]\n" // Wait for start edge
+ " rjmp 1b\n"
+ " rcall uartDelay\n" // Get to middle of start bit
+ "2: rcall uartDelay\n" // Wait 1 bit period
+ " rcall uartDelay\n" // Wait 1 bit period
+ " clc\n"
+ " sbic %[uartPin],%[uartBit]\n"
+ " sec\n"
+ " dec %[bitCnt]\n"
+ " breq 3f\n"
+ " ror %[ch]\n"
+ " rjmp 2b\n"
+ "3:\n"
+ :
+ [ch] "=r" (ch)
+ :
+ [bitCnt] "d" (9),
+ [uartPin] "I" (_SFR_IO_ADDR(UART_PIN)),
+ [uartBit] "I" (UART_RX_BIT)
+ :
+ "r25"
+);
+#else
+ while(!(UCSR0A & _BV(RXC0)))
+ ;
+ if (!(UCSR0A & _BV(FE0))) {
+ /*
+ * A Framing Error indicates (probably) that something is talking
+ * to us at the wrong bit rate. Assume that this is because it
+ * expects to be talking to the application, and DON'T reset the
+ * watchdog. This should cause the bootloader to abort and run
+ * the application "soon", if it keeps happening. (Note that we
+ * don't care that an invalid char is returned...)
+ */
+ watchdogReset();
+ }
+
+ ch = UDR0;
+#endif
+
+#ifdef LED_DATA_FLASH
+#ifdef __AVR_ATmega8__
+ LED_PORT ^= _BV(LED);
+#else
+ LED_PIN |= _BV(LED);
+#endif
+#endif
+
+ return ch;
+}
+
+#ifdef SOFT_UART
+// AVR305 equation: #define UART_B_VALUE (((F_CPU/BAUD_RATE)-23)/6)
+// Adding 3 to numerator simulates nearest rounding for more accurate baud rates
+#define UART_B_VALUE (((F_CPU/BAUD_RATE)-20)/6)
+#if UART_B_VALUE > 255
+#error Baud rate too slow for soft UART
+#endif
+
+void uartDelay() {
+ __asm__ __volatile__ (
+ "ldi r25,%[count]\n"
+ "1:dec r25\n"
+ "brne 1b\n"
+ "ret\n"
+ ::[count] "M" (UART_B_VALUE)
+ );
+}
+#endif
+
+void getNch(uint8_t count) {
+ do getch(); while (--count);
+ verifySpace();
+}
+
+void verifySpace() {
+ if (getch() != CRC_EOP) {
+ watchdogConfig(WATCHDOG_16MS); // shorten WD timeout
+ while (1) // and busy-loop so that WD causes
+ ; // a reset and app start.
+ }
+ putch(STK_INSYNC);
+}
+
+#if LED_START_FLASHES > 0
+void flash_led(uint8_t count) {
+ do {
+ TCNT1 = -(F_CPU/(1024*16));
+ TIFR1 = _BV(TOV1);
+ while(!(TIFR1 & _BV(TOV1)));
+#ifdef __AVR_ATmega8__
+ LED_PORT ^= _BV(LED);
+#else
+ LED_PIN |= _BV(LED);
+#endif
+ watchdogReset();
+ } while (--count);
+}
+#endif
+
+// Watchdog functions. These are only safe with interrupts turned off.
+void watchdogReset() {
+ __asm__ __volatile__ (
+ "wdr\n"
+ );
+}
+
+void watchdogConfig(uint8_t x) {
+ WDTCSR = _BV(WDCE) | _BV(WDE);
+ WDTCSR = x;
+}
+
+void appStart() {
+ watchdogConfig(WATCHDOG_OFF);
+ __asm__ __volatile__ (
+#ifdef VIRTUAL_BOOT_PARTITION
+ // Jump to WDT vector
+ "ldi r30,4\n"
+ "clr r31\n"
+#else
+ // Jump to RST vector
+ "clr r30\n"
+ "clr r31\n"
+#endif
+ "ijmp\n"
+ );
+}
View
33 ...noAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/optiboot_1284P_20MHz_57k6_baud.hex
@@ -0,0 +1,33 @@
+:020000021000EC
+:10FE00000F92CDB7DEB7112484B714BE81FFDFD0C7
+:10FE100082E08093C00088E18093C10086E08093F7
+:10FE2000C2008AE28093C4008EE0BBD0209A00E03A
+:10FE300010E0EE24E394E1E1DE2EF3E0FF2EA5D006
+:10FE4000813471F4A2D08983B2D08981823809F4D7
+:10FE50008BC0813811F484E001C083E08FD08BC067
+:10FE6000823411F484E103C0853419F485E0A7D00D
+:10FE700082C0853591F489D0A82EBB2486D0082F66
+:10FE800010E0102F00270A291B29812F881F88279F
+:10FE9000881F8BBF000F111F6DC0863521F484E0D1
+:10FEA0008ED080E0DBCF843609F040C06ED06DD0BC
+:10FEB000C82E6BD080EE0030180718F4F801F7BE9A
+:10FEC000E895A12C51E0B52E60D0F50181935F013A
+:10FED000CE16D1F7F0EE00301F0718F0F801F7BE8C
+:10FEE000E89565D007B600FCFDCFF801A0E0B1E0D1
+:10FEF0002C9130E011968C91119790E0982F8827E3
+:10FF0000822B932B12960C01E7BEE89511243296B2
+:10FF100082E0A030B80761F785E0F80187BFE89577
+:10FF200007B600FCFDCFD7BEE89525C08437A9F4FD
+:10FF30002CD02BD0B82E29D03AD0CB2C4801F401AC
+:10FF400086911CD00894811C911CCA94C1F70F5F44
+:10FF50001F4FBA940B0D111D0EC0853739F427D0F1
+:10FF60008EE10CD087E90AD085E078CF813511F495
+:10FF700088E017D01CD080E101D061CF9091C00003
+:10FF800095FFFCCF8093C60008958091C00087FF45
+:10FF9000FCCF8091C00084FD01C0A8958091C6006F
+:10FFA0000895E0E6F0E098E1908380830895EDDF26
+:10FFB000803219F088E0F5DFFFCF84E1DFCFCF9307
+:10FFC000C82FE3DFC150E9F7F2DFCF91089580E059
+:08FFD000E8DFEE27FF2709948A
+:040000031000FE00EB
+:00000001FF
View
81 ArduinoAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/pin_defs.h
@@ -0,0 +1,81 @@
+#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega88) || defined(__AVR_ATmega8__) || defined(__AVR_ATmega88__)
+/* Onboard LED is connected to pin PB5 in Arduino NG, Diecimila, and Duemilanove */
+#define LED_DDR DDRB
+#define LED_PORT PORTB
+#define LED_PIN PINB
+#define LED PINB5
+
+/* Ports for soft UART */
+#ifdef SOFT_UART
+#define UART_PORT PORTD
+#define UART_PIN PIND
+#define UART_DDR DDRD
+#define UART_TX_BIT 1
+#define UART_RX_BIT 0
+#endif
+#endif
+
+#if defined(__AVR_ATmega8__)
+ //Name conversion R.Wiersma
+ #define UCSR0A UCSRA
+ #define UDR0 UDR
+ #define UDRE0 UDRE
+ #define RXC0 RXC
+ #define FE0 FE
+ #define TIFR1 TIFR
+ #define WDTCSR WDTCR
+#endif
+
+/* Luminet support */
+#if defined(__AVR_ATtiny84__)
+/* Red LED is connected to pin PA4 */
+#define LED_DDR DDRA
+#define LED_PORT PORTA
+#define LED_PIN PINA
+#define LED PINA4
+/* Ports for soft UART - left port only for now. TX/RX on PA2/PA3 */
+#ifdef SOFT_UART
+#define UART_PORT PORTA
+#define UART_PIN PINA
+#define UART_DDR DDRA
+#define UART_TX_BIT 2
+#define UART_RX_BIT 3
+#endif
+#endif
+
+/* Sanguino support */
+#if defined(__AVR_ATmega644P__) || defined(__AVR_ATmega1284P__)
+/* Onboard LED is connected to pin PB0 on Sanguino */
+#define LED_DDR DDRB
+#define LED_PORT PORTB
+#define LED_PIN PINB
+#define LED PINB0
+
+/* Ports for soft UART */
+#ifdef SOFT_UART
+#define UART_PORT PORTD
+#define UART_PIN PIND
+#define UART_DDR DDRD
+#define UART_TX_BIT 1
+#define UART_RX_BIT 0
+#endif
+#endif
+
+/* Mega support */
+#if defined(__AVR_ATmega1280__)
+/* Onboard LED is connected to pin PB7 on Arduino Mega */
+#define LED_DDR DDRB
+#define LED_PORT PORTB
+#define LED_PIN PINB
+#define LED PINB7
+
+/* Ports for soft UART */
+#ifdef SOFT_UART
+#define UART_PORT PORTE
+#define UART_PIN PINE
+#define UART_DDR DDRE
+#define UART_TX_BIT 1
+#define UART_RX_BIT 0
+#endif
+#endif
+
View
39 ArduinoAddons/Arduino_0.xx/Sanguino/bootloaders/atmega1284p/stk500.h
@@ -0,0 +1,39 @@
+/* STK500 constants list, from AVRDUDE */
+#define STK_OK 0x10
+#define STK_FAILED 0x11 // Not used
+#define STK_UNKNOWN 0x12 // Not used
+#define STK_NODEVICE 0x13 // Not used
+#define STK_INSYNC 0x14 // ' '
+#define STK_NOSYNC 0x15 // Not used
+#define ADC_CHANNEL_ERROR 0x16 // Not used
+#define ADC_MEASURE_OK 0x17 // Not used
+#define PWM_CHANNEL_ERROR 0x18 // Not used
+#define PWM_ADJUST_OK 0x19 // Not used
+#define CRC_EOP 0x20 // 'SPACE'
+#define STK_GET_SYNC 0x30 // '0'
+#define STK_GET_SIGN_ON 0x31 // '1'
+#define STK_SET_PARAMETER 0x40 // '@'
+#define STK_GET_PARAMETER 0x41 // 'A'
+#define STK_SET_DEVICE 0x42 // 'B'
+#define STK_SET_DEVICE_EXT 0x45 // 'E'
+#define STK_ENTER_PROGMODE 0x50 // 'P'
+#define STK_LEAVE_PROGMODE 0x51 // 'Q'
+#define STK_CHIP_ERASE 0x52 // 'R'
+#define STK_CHECK_AUTOINC 0x53 // 'S'
+#define STK_LOAD_ADDRESS 0x55 // 'U'
+#define STK_UNIVERSAL 0x56 // 'V'
+#define STK_PROG_FLASH 0x60 // '`'
+#define STK_PROG_DATA 0x61 // 'a'
+#define STK_PROG_FUSE 0x62 // 'b'
+#define STK_PROG_LOCK 0x63 // 'c'
+#define STK_PROG_PAGE 0x64 // 'd'
+#define STK_PROG_FUSE_EXT 0x65 // 'e'
+#define STK_READ_FLASH 0x70 // 'p'
+#define STK_READ_DATA 0x71 // 'q'
+#define STK_READ_FUSE 0x72 // 'r'
+#define STK_READ_LOCK 0x73 // 's'
+#define STK_READ_PAGE 0x74 // 't'
+#define STK_READ_SIGN 0x75 // 'u'
+#define STK_READ_OSCCAL 0x76 // 'v'
+#define STK_READ_FUSE_EXT 0x77 // 'w'
+#define STK_READ_OSCCAL_EXT 0x78 // 'x'

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