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Andrew Tridgell 20ecc03886 HAL_ChibiOS: disable interrupts during flash operations 
we have now shown that interrupts being enabled during flash
operations can cause the infamous "68ms" bug, or watchdog when using a
32 bit timer on boards using flash for storage

The issue is quite repeatable with a load of a very large waypoint
file (over 500 waypoints) using "wp ftpload" in MAVProxy. This puts a
huge load on flash storage.

Our current working theory is that while doing flash writes for
storage on dual-bank we block access to only one bank, so if another
thread uses a timeout function with a short timeout while the flash
write is happening and chVTDoTickI calls code which crosses the flash
bank boundary then it can cause chVTDoTickI to violate the assumption
that no more than CH_CFG_ST_DELTA ticks pass while it is calculating
the value to set in the system timer. In that case we get a delay of a
full timer wrap, which is 68ms on boards with 16 bit timer and 70
minutes on boards with 32 bit timer
 		2022-04-07 10:05:28 +10:00
.github CI: remove test_size for stable releases 2022-03-18 14:47:00 +11:00
.semaphore .semaphore: add base semaphore.yml 2021-03-18 07:13:47 +11:00
.vscode DevEnv: Add AP VSCode extension to recommendations 2021-12-11 11:39:53 -08:00
AntennaTracker AntennaTracker: provide default implemenation of handle_change_alt_request 2022-02-08 10:59:13 +11:00
ArduCopter Copter: version to 4.2.0-beta3 2022-04-07 10:05:28 +10:00
ArduPlane Plane: fixed rudder control when ARMING_RUDDER != 2 2022-04-07 10:05:28 +10:00
ArduSub ArduSub: send deprecated message warning for MAVLINK_MSG_ID_SET_HOME_POSITION 2022-02-10 12:13:43 +11:00
Blimp Blimp: create and use location_from_command_t 2022-02-09 09:15:11 +11:00
Rover Rover: version to 4.2.0-beta3 2022-04-07 10:05:28 +10:00
Tools bootloaders: update spracing h7 extreme bootloader 2022-04-07 10:05:28 +10:00
benchmarks waf: add gbenchmark Waf tool 2015-12-03 07:54:31 +11:00
docs docs: rename APMrover2 to Rover 2020-04-14 09:50:34 +09:00
libraries HAL_ChibiOS: disable interrupts during flash operations 2022-04-07 10:05:28 +10:00
mk Docs: Change all references from dev.ardupilot.org to the appropriate documentation URLs. 2021-05-31 12:20:45 +10:00
modules modules: DSDL change mppt/Stream ID from 20020 to 20009 to avoid conflict with Volz 2022-02-18 12:16:31 -08:00
tests AP_gtest: enable testing for exit conditions, SITL unit tests 2021-09-28 09:11:48 +10:00
.dir-locals.el emacs: add a .dir-locals.el 2016-10-24 09:41:31 -02:00
.dockerignore Tools: fix Arch environment installation 2021-10-07 10:05:04 +11:00
.editorconfig all: Change the editorconfig so that it won't want to reformat 2014-07-09 19:03:18 -07:00
.flake8 .flake8: ignore E221 multiple spaces before operator 2021-02-18 10:43:05 +11:00
.gitattributes .gitattributes: mark bin, elf and hex as binary 2021-05-20 11:45:02 +10:00
.gitignore ESP32: drop submodule and add script to get it as a clone and/or submodule 2021-11-03 06:06:15 +11:00
.gitmodules modules: move to ardupilot/CrashDebug 2021-12-01 18:17:50 +11:00
.pydevproject AP_Relay: add -1:Disabled to list of param values 2014-05-15 17:13:37 +09:00
.valgrind-suppressions Valgrind: add supressions file and .valgrindrc using it 2019-07-18 16:49:11 +10:00
.valgrindrc Valgrind: add supressions file and .valgrindrc using it 2019-07-18 16:49:11 +10:00
BUILD.md Build.md: Updated waf configure commands for CubeBlack and fmuv3 2021-01-27 12:38:11 +11:00
CODE_OF_CONDUCT.md Add developer code of coduct 2022-02-08 10:53:35 +11:00
COPYING.txt cmake overhaul, cleaned up readme, added license 2011-09-30 17:32:51 -04:00
Dockerfile Docker: move to ubuntu 20.04 and correct bash-completion support 2021-03-19 22:36:36 +11:00
Doxyfile.in cfg: Fix typos 2016-05-13 19:20:07 -03:00
Makefile Make: use https:// scheme for ardupilot URLs 2019-12-10 07:53:46 +11:00
README.md Update README to reflect current tradheli maintainers 2022-01-26 13:56:13 -05:00
Vagrantfile Vagrant: don't start bionic64 desktop by default 2021-11-30 16:18:39 +11:00
appveyor.yml CI: fixed appveyor python install 2019-07-03 11:05:55 +10:00
waf waf: use Python from environment 2018-11-13 10:30:34 +11:00
wscript waf: added --save-temps configure option 2022-02-23 12:36:59 +11:00

README.md

ArduPilot Project

Discord

Test Copter Test Plane Test Rover Test Sub Test Tracker

Test AP_Periph Test Chibios Test Linux SBC Test Replay

Test Unit Tests test size

Test Environment Setup

Cygwin Build Macos Build

Coverity Scan Build Status

Test Coverage

Autotest Status

ArduPilot is the most advanced, full-featured, and reliable open source autopilot software available. It has been under development since 2010 by a diverse team of professional engineers, computer scientists, and community contributors. Our autopilot software is capable of controlling almost any vehicle system imaginable, from conventional airplanes, quad planes, multi-rotors, and helicopters to rovers, boats, balance bots, and even submarines. It is continually being expanded to provide support for new emerging vehicle types.

The ArduPilot project is made up of:

User Support & Discussion Forums

Developer Information

Top Contributors

How To Get Involved

License

The ArduPilot project is licensed under the GNU General Public License, version 3.

Maintainers

ArduPilot is comprised of several parts, vehicles and boards. The list below contains the people that regularly contribute to the project and are responsible for reviewing patches on their specific area.