diff options
Diffstat (limited to 'bootloaders/optiboot')
| -rw-r--r-- | bootloaders/optiboot/Makefile | 77 | ||||
| -rw-r--r-- | bootloaders/optiboot/README.TXT | 55 | ||||
| -rw-r--r-- | bootloaders/optiboot/omake | 2 | ||||
| -rw-r--r-- | bootloaders/optiboot/omake.bat | 1 | ||||
| -rw-r--r-- | bootloaders/optiboot/optiboot_atmega328.lst | 22 |
5 files changed, 138 insertions, 19 deletions
diff --git a/bootloaders/optiboot/Makefile b/bootloaders/optiboot/Makefile index 0fd6005..92f9c61 100644 --- a/bootloaders/optiboot/Makefile +++ b/bootloaders/optiboot/Makefile @@ -19,6 +19,17 @@ # 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 @@ -27,6 +38,50 @@ ISPSPEED = -b 115200 MCU_TARGET = atmega168 LDSECTION = --section-start=.text=0x3e00 +# 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?) +fixpath = $(subst /,\,$1) +endif + +else ifeq ($(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: @@ -37,10 +92,13 @@ LDSECTION = --section-start=.text=0x3e00 # lock it), but since the high two bits of the lock byte are # unused, avrdude would get confused. -ISPFUSES = avrdude -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 = avrdude -c $(ISPTOOL) -p $(MCU_TARGET) -P $(ISPPORT) $(ISPSPEED) \ --U flash:w:$(PROGRAM)_$(TARGET).hex -U lock:w:0x0f:m +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:0x0f:m STK500 = "C:\Program Files\Atmel\AVR Tools\STK500\Stk500.exe" STK500-1 = $(STK500) -e -d$(MCU_TARGET) -pf -vf -if$(PROGRAM)_$(TARGET).hex \ @@ -53,15 +111,17 @@ OPTIMIZE = -Os -fno-inline-small-functions -fno-split-wide-types -mshort-calls DEFS = LIBS = -CC = avr-gcc +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) $(DEFS) -override LDFLAGS = -Wl,$(LDSECTION) -Wl,--relax -nostartfiles +override LDFLAGS = -Wl,$(LDSECTION) -Wl,--relax -Wl,--gc-sections -nostartfiles -nostdlib + +OBJCOPY = $(GCCROOT)avr-objcopy +OBJDUMP = $(call fixpath,$(GCCROOT)avr-objdump) -OBJCOPY = avr-objcopy -OBJDUMP = avr-objdump +SIZE = $(GCCROOT)avr-size # 20MHz clocked platforms # @@ -222,6 +282,7 @@ isp-stk500: $(PROGRAM)_$(TARGET).hex %.elf: $(OBJ) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS) + $(SIZE) $@ clean: rm -rf *.o *.elf *.lst *.map *.sym *.lss *.eep *.srec *.bin *.hex diff --git a/bootloaders/optiboot/README.TXT b/bootloaders/optiboot/README.TXT new file mode 100644 index 0000000..9a68e23 --- /dev/null +++ b/bootloaders/optiboot/README.TXT @@ -0,0 +1,55 @@ +This directory contains the Optiboot small bootloader for AVR +microcontrollers, somewhat modified specifically for the Arduino +environment. + +Optiboot is more fully described here: http://code.google.com/p/optiboot/ +and is the work of Peter Knight (aka Cathedrow), building on work of Jason P +Kyle, Spiff, and Ladyada. Arduino-specific modification are by Bill +Westfield (aka WestfW) + +Arduino-specific issues are tracked as part of the Arduino project +at http://code.google.com/p/arduino + + +------------------------------------------------------------ +Building optiboot for Arduino. + +Production builds of optiboot for Arduino are done on a Mac in "unix mode" +using CrossPack-AVR-20100115. CrossPack tracks WINAVR (for windows), which +is just a package of avr-gcc and related utilities, so similar builds should +work on Windows or Linux systems. + +One of the Arduino-specific changes is modifications to the makefile to +allow building optiboot using only the tools installed as part of the +Arduino environment, or the Arduino source development tree. All three +build procedures should yield identical binaries (.hex files) (although +this may change if compiler versions drift apart between CrossPack and +the Arduino IDE.) + + +Building optiboot in the arduino IDE install. + +Work in the .../hardware/arduino/bootloaders/optiboot/ and use the +"omake <targets>" command, which just generates a command that uses +the arduino-included "make" utility with a command like: + make OS=windows ENV=arduino <targets> +or make OS=macosx ENV=arduino <targets> +On windows, this assumes you're using the windows command shell. If +you're using a cygwin or mingw shell, or have one of those in your +path, the build will probably break due to slash vs backslash issues. +On a Mac, if you have the developer tools installed, you can use the +Apple-supplied version of make. +The makefile uses relative paths ("../../../tools/" and such) to find +the programs it needs, so you need to work in the existing optiboot +directory (or something created at the same "level") for it to work. + + +Building optiboot in the arduino source development install. + +In this case, there is no special shell script, and you're assumed to +have "make" installed somewhere in your path. +Build the Arduino source ("ant build") to unpack the tools into the +expected directory. +Work in Arduino/hardware/arduino/bootloaders/optiboot and use + make OS=windows ENV=arduinodev <targets> +or make OS=macosx ENV=arduinodev <targets> diff --git a/bootloaders/optiboot/omake b/bootloaders/optiboot/omake new file mode 100644 index 0000000..cc7c6bc --- /dev/null +++ b/bootloaders/optiboot/omake @@ -0,0 +1,2 @@ +echo ../../../tools/avr/bin/make OS=macosx ENV=arduino $* +../../../tools/avr/bin/make OS=macosx ENV=arduino $* diff --git a/bootloaders/optiboot/omake.bat b/bootloaders/optiboot/omake.bat new file mode 100644 index 0000000..f6815da --- /dev/null +++ b/bootloaders/optiboot/omake.bat @@ -0,0 +1 @@ +..\..\..\tools\avr\utils\bin\make OS=windows ENV=arduino %* diff --git a/bootloaders/optiboot/optiboot_atmega328.lst b/bootloaders/optiboot/optiboot_atmega328.lst index dd879dc..104799f 100644 --- a/bootloaders/optiboot/optiboot_atmega328.lst +++ b/bootloaders/optiboot/optiboot_atmega328.lst @@ -13,15 +13,15 @@ Idx Name Size VMA LMA File off Algn CONTENTS, READONLY, DEBUGGING 4 .debug_abbrev 00000196 00000000 00000000 0000053d 2**0 CONTENTS, READONLY, DEBUGGING - 5 .debug_line 000003db 00000000 00000000 000006d3 2**0 + 5 .debug_line 0000043f 00000000 00000000 000006d3 2**0 CONTENTS, READONLY, DEBUGGING - 6 .debug_frame 00000090 00000000 00000000 00000ab0 2**2 + 6 .debug_frame 00000090 00000000 00000000 00000b14 2**2 CONTENTS, READONLY, DEBUGGING - 7 .debug_str 00000124 00000000 00000000 00000b40 2**0 + 7 .debug_str 00000136 00000000 00000000 00000ba4 2**0 CONTENTS, READONLY, DEBUGGING - 8 .debug_loc 000001d1 00000000 00000000 00000c64 2**0 + 8 .debug_loc 000001d1 00000000 00000000 00000cda 2**0 CONTENTS, READONLY, DEBUGGING - 9 .debug_ranges 00000068 00000000 00000000 00000e35 2**0 + 9 .debug_ranges 00000068 00000000 00000000 00000eab 2**0 CONTENTS, READONLY, DEBUGGING Disassembly of section .text: @@ -153,7 +153,7 @@ void watchdogReset() { // GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy getNch(1); 7e5e: 81 e0 ldi r24, 0x01 ; 1 - 7e60: be d0 rcall .+380 ; 0x7fde <verifySpace+0xc> + 7e60: be d0 rcall .+380 ; 0x7fde <getNch> putch(0x03); 7e62: 83 e0 ldi r24, 0x03 ; 3 7e64: 24 c0 rjmp .+72 ; 0x7eae <main+0xae> @@ -172,7 +172,7 @@ void watchdogReset() { // SET DEVICE EXT is ignored getNch(5); 7e72: 85 e0 ldi r24, 0x05 ; 5 - 7e74: b4 d0 rcall .+360 ; 0x7fde <verifySpace+0xc> + 7e74: b4 d0 rcall .+360 ; 0x7fde <getNch> 7e76: 8a c0 rjmp .+276 ; 0x7f8c <main+0x18c> } else if(ch == STK_LOAD_ADDRESS) { @@ -206,7 +206,7 @@ void watchdogReset() { // UNIVERSAL command is ignored getNch(4); 7ea8: 84 e0 ldi r24, 0x04 ; 4 - 7eaa: 99 d0 rcall .+306 ; 0x7fde <verifySpace+0xc> + 7eaa: 99 d0 rcall .+306 ; 0x7fde <getNch> putch(0x00); 7eac: 80 e0 ldi r24, 0x00 ; 0 7eae: 71 d0 rcall .+226 ; 0x7f92 <putch> @@ -503,6 +503,8 @@ void verifySpace() { 7fda: 84 e1 ldi r24, 0x14 ; 20 } 7fdc: da cf rjmp .-76 ; 0x7f92 <putch> + +00007fde <getNch>: ::[count] "M" (UART_B_VALUE) ); } @@ -511,12 +513,10 @@ void verifySpace() { void getNch(uint8_t count) { 7fde: 1f 93 push r17 7fe0: 18 2f mov r17, r24 - -00007fe2 <getNch>: do getch(); while (--count); 7fe2: df df rcall .-66 ; 0x7fa2 <getch> 7fe4: 11 50 subi r17, 0x01 ; 1 - 7fe6: e9 f7 brne .-6 ; 0x7fe2 <getNch> + 7fe6: e9 f7 brne .-6 ; 0x7fe2 <getNch+0x4> verifySpace(); 7fe8: f4 df rcall .-24 ; 0x7fd2 <verifySpace> } |