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il y a 6 ans | |
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docs | il y a 6 ans | |
optiboot | il y a 6 ans | |
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.travis.yml | il y a 6 ans | |
README.md | il y a 8 ans |
Optiboot is an easy to install upgrade to the Arduino bootloader within Arduino boards. It provides the following features:
Optiboot is now installed by default on the Arduino Uno. It can be installed on all older mega8, 168 or 328 based Arduinos.
More detailed documentation is being added (slowly) to the repository wiki.
Optiboot is "compatible", in a loose sense, with all versions of the Arduino IDE. It was originally written at about the same time as v1.0, and has some "quirks" that date back to that timeframe. Most significantly, install procedures and locations change between releases, and the ability to compile Optiboot using only the tools installed with the IDE broke in the v1.5 timeframe.
You do NOT need to "install" Optiboot if you are trying to update an installed platform that already uses some form of Optiboot. In that case, you should probably just find and replace the existing .hex files from the platform support directories. Using the Optiboot "install" procedure does not install any cores or variants, so it is only useful for CPUs that are already supported by the standard Arduino core (or, if all you want to do is install bootloaders.)
The following instructions are based on using the Arduino "Board Manager", present in IDE versions 1.6.5 and later.
For additional installation information, see the Optiboot AddingOptibootChipsToIde Wiki page
Although it has evolved considerably, Optiboot builds on the original work of Jason P. Kyle (stk500boot.c), Arduino group (bootloader), Spiff (1K bootloader), AVR-Libc group and Ladyada (Adaboot).
Optiboot is the work of Peter Knight (aka Cathedrow). Despite some misattributions, it is not sponsored or supported by any organisation or company including Tinker London, Tinker.it! and Arduino.
Maintenance of optiboot was taken over by Bill Westfield (aka WestfW) in 2011.