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http://code.google.com/p/optiboot/issues/detail?id=33
Fix high-value watchdog timeouts on ATmega8
http://code.google.com/p/optiboot/issues/detail?id=38
Change "start app on bad commands" code to start the app via the
watchdog timer, so that the app is always started with the chip
in fully reset state.
http://code.google.com/p/optiboot/issues/detail?id=37
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http://code.google.com/p/arduino/issues/detail?id=554
end of flash memory where they can be read (at least in theory) by
device programmers, hex-file examination, or application programs.
This is done by putting the version number in a separate section
(".version"), and using linker/objcopy magic to locate that section as
appropriate for the target chip. (See
http://lists.gnu.org/archive/html/avr-gcc-list/2011-02/msg00016.html
for some discussion on the details.)
Start the version at 4.1 (the last "packaged" version of optiboot was
called version 3, so the "top of source" would be 4.0, and adding the
version number makes 4.1)
Refactor LDSECTION in the Makefile to LDSECTIONS so that multiple
section start addresses can be defined.
Change the _isp makefile definitions to make the bootloader section
readable (but not writable) by the application section. (This would
need to be done elsewhere as well to handle all bootloader programming
techniques. Notably Arduino's boards.txt
Note that this change does not change the "code" portion of optiboot
at all. The only diffs in the .hex files are the added version word
at the end of flash memory.
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optiboot up-to-date with the optiboot source repository as of Jun-2011
(the last changes made in the optiboot repository were in Oct-2010)
This adds support for several plaforms, fixes the "30k bug", and
refactors the source to have separate stk500.h, boot.h, and pin_defs.h
These are the arduino opticode issues fixed:
http://code.google.com/p/arduino/issues/detail?id=380
optiboot has problems upload sketches bigger than 30 KB
http://code.google.com/p/arduino/issues/detail?id=556
update optiboot to the point of the latest optiboot project sources.
These are issues that had been solved in the optiboot source aready:
http://code.google.com/p/arduino/issues/detail?id=364
optiboot leaves timer1 configured when starting app, breaks PWM on
pin 9 and 10. (fixed with a workaround in arduino core.)
aka http://code.google.com/p/optiboot/source/detail?r=c778fbe72df6ac13ef730c25283358c3c970f73e
Support for ATmega8 and mega88.
Fix fuse settings for mega168 _ISP targets
Additional new platforms (mega, sanguino)
http://code.google.com/p/optiboot/issues/detail?id=26
Set R1 to 0 (already in arduino code)
http://code.google.com/p/optiboot/issues/detail?id=36&can=1
Fails to build correctly for mega88
After this commit, the only differences between the Arduino optiboot.c
and the optiboot repository optiboot.c are cosmetic.
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Explicitly setting R1 to 0 so that the watchdog timer is properly initializing, preventing it from timing out and resetting the processor.
http://code.google.com/p/optiboot/issues/detail?id=26
http://code.google.com/p/arduino/issues/detail?id=446
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