mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
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David Sidrane
60c8c84e18
5a6d95dd9f051be548a8d2378aaef75f0a1ba5e1 and ee5ae3a57dbbe835584f164c956e0374da1ed2eb Applies to STM32F4 and STM32F7 Save elapsed time before handling I2C in stm32_i2c_sem_waitdone() It is possible that a context switch occurs after stm32_i2c_isr() call but before elapsed time is saved in stm32_i2c_sem_waitdone(). It is then possible that the handling code was executed only once with "elapsed time" equal 0. When scheduler resumes this thread it is quite possible that now "elapsed time" will be well above timeout threshold. In that case the function returns and reports a timeout, even though the handling code was not executed "recently". Fix this by inverting the order of operations in the loop - save elapsed time before handling I2C. This way a context switch anywhere in the loop will not cause an erroneous "timeout" error.
PX4 Pro Drone Autopilot
This repository holds the PX4 Pro flight control solution for drones, with the main applications located in the src/modules directory. It also contains the PX4 Drone Middleware Platform, which provides drivers and middleware to run drones.
- Official Website: http://px4.io (License: BSD 3-clause, LICENSE.md)
- Supported airframes (more experimental types than listed here are supported):
- Multicopters
- Fixed wing
- VTOL
- Releases: Downloads
Weekly Dev Call
The PX4 Dev Team syncs up on its weekly dev call (connect via Mumble client).
- When: Tuesday 17:00 Central European Time, 11:00 Eastern Time, 08:00 Pacific Standard Time
- Server: sitl01.dronetest.io
- Port: 64738
- Password: px4
- The agenda is announced in advance on the PX4 Discuss
- Issues and PRs may be labelled "devcall" to flag them for discussion
Please refer to the user documentation and user forum for flying drones with the PX4 flight stack.
Developers
Maintenance Team
- Project / Founder - Lorenz Meier
- Dev Call - Mark Whitehorn, Ramon Roche
- Communication Architecture - Beat Kueng, Julian Oes
- UI / UX - Gus Grubba
- Multicopter Flight Control - Dennis Mannhart, Matthias Grob
- VTOL Flight Control - Roman Bapst, Andreas Antener, Sander Smeets
- Fixed Wing Flight Control - Daniel Agar, Paul Riseborough
- Racers - Anton Matosov / Mark Whitehorn
- OS / drivers - David Sidrane
- UAVCAN / Industrial - Pavel Kirienko
- State Estimation - James Goppert, Paul Riseborough
- VIO - Mohammed Kabir, Christoph Tobler
- Obstacle Avoidance - Vilhjalmur Vilhjalmsson
- Snapdragon - Mark Charlebois
- Intel Aero - Lucas de Marchi, Simone Guscetti
- Raspberry Pi / Navio - Beat Kueng
- Parrot Bebop - Michael Schaeuble
Supported Hardware
This repository contains code supporting these boards:
- Snapdragon Flight
- Intel Aero
- Raspberry PI with Navio 2
- Parrot Bebop 2
- FMUv1.x
- FMUv2.x (Pixhawk and Pixfalcon)
- FMUv3.x (Pixhawk 2)
- FMUv4.x (Pixhawk 3 Pro and Pixracer)
- FMUv5.x (ARM Cortex M7, future Pixhawk)
- AeroCore (v1 and v2)
- STM32F4Discovery (basic support) Tutorial
- MindPX V2.8 Tutorial
- MindRacer V1.2 Tutorial
Project Milestones
The PX4 software and Pixhawk hardware (which has been designed for it) has been created in 2011 by Lorenz Meier.