15 Commits

Author	SHA1	Message	Date
Andrew Tridgell	8f2f4b1bc5	HAL_PX4: use write() to /dev/pwm_output for servo output ... this lowest the cost of PWM output a lot, but relies on the new I2C based IO firmware	2013-01-25 20:44:36 +11:00
Andrew Tridgell	70227d5d93	HAL_PX4: added scheduler performance counters	2013-01-24 15:04:57 +11:00
Andrew Tridgell	966b9b9b9c	HAL_PX4: format panic messages with a newline	2013-01-23 16:54:44 +11:00
Andrew Tridgell	952df2fced	HAL_PX4: new buffered storeage driver for microsd cards ... this does all IO in the timer thread, avoids writes that don't change data, and does all writes in multiples of 128 byte chunks. This should be about as friendly to SD cards as we can get.	2013-01-23 16:37:40 +11:00
Andrew Tridgell	2a10727902	HAL_PX4: run timer thread as SCHED_FIFO ... this ensures it never yields to the main thread, which would break our locking assumptions	2013-01-23 09:21:50 +11:00
Andrew Tridgell	6ffa18fa61	HAL_PX4: rewrite UART driver to be much more efficient ... this does the IO in the timer thread, and uses buffers in the main task to avoid system call costs in the flight code. The cost of PX4 read and write system calls is quite high - about 10 to 15 usec. We can't afford to pay that per byte	2013-01-22 21:22:01 +11:00
Andrew Tridgell	39e28d48c2	HAL_PX4: switched scheduler to use a pthread ... this allows the timer tasks to access file descriptors in the main APM task, which makes writing PX4 device drivers much easier	2013-01-21 13:54:09 +11:00
Andrew Tridgell	7c7a215934	HAL_PX4: fixes for new Scheduler API	2013-01-11 12:25:26 +11:00
Andrew Tridgell	5829d44a22	HAL_PX4: disable failsafe handler ... this won't work until we can set RC output values in timers	2013-01-04 22:26:16 +11:00
Andrew Tridgell	9f423a24ad	HAL_PX4: yield CPU in delay() ... this allows other apps to run	2013-01-04 12:34:35 +11:00
Andrew Tridgell	1e69b88261	HAL_PX4: use write() in panic() ... this allows panic from the UARTDriver	2013-01-03 21:11:37 +11:00
Andrew Tridgell	b30fa6535b	HAL_PX4: support reboot	2013-01-03 19:34:36 +11:00
Andrew Tridgell	c6305b5876	HAL_PX4: rework Scheduler using hrt calls ... thanks to Julian Oes for the suggestion	2013-01-03 13:15:57 +11:00
Andrew Tridgell	5053fb8acc	HAL_PX4: implement atomic operations	2013-01-02 21:45:17 +11:00
Andrew Tridgell	5a70f3becf	HAL_PX4: added a scheduler implementation	2013-01-02 21:39:26 +11:00