ardupilot

Commit Graph

Author	SHA1	Message	Date
Andrew Tridgell	2340bb6220	PX4: use a minimum transmit buffer for UARTs of 512 bytes this avoids writes stalling on the GPS port. We can't afford this memory on APM2, but we can on PX4, and it means that while the GPS is blocking at startup it doesn't cause any scheduler slips	12 years ago
Andrew Tridgell	0916388ab5	HAL_PX4: retry opening UARTs up to 5 times this seems to help a lot with the USB port on PX4	12 years ago
Andrew Tridgell	8766e86091	HAL_PX4: fixed blocking bulk writes to UARTs this fixes a problem with uBlox initialisation on PX4	12 years ago
Andrew Tridgell	14911eff6c	HAL_PX4: added a (disabled) trick for handling blocking ttyACM0 this doesn't work yet, but is worth having for debugging	12 years ago
Andrew Tridgell	c373429a6e	HAL_PX4: fixed a buffer handling bug BUF_SPACE() was badly buggy, which could lead to memory corruption	12 years ago
Andrew Tridgell	54e7bce75e	HAL_PX4: cope with O_NONBLOCK not working in NuttX on ttyACM0 writes will block anyway, which clags up APM	12 years ago
Andrew Tridgell	fc8065b50f	HAL_PX4: added UART performance counters	12 years ago
Andrew Tridgell	f72b532405	HAL_PX4: ensure all writes go via buffers this prevents output corruption by direct fd writes	12 years ago
Andrew Tridgell	89cb3fbd61	HAL_PX4: fixed blocking IO in UART driver	12 years ago
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	12 years ago
Andrew Tridgell	546ed19ffc	HAL_PX4: improved efficiency of serial writes use buffer at a time writes when possible, and use O_NONBLOCKING to avoid txspace()	12 years ago
Andrew Tridgell	18cfd29f2f	HAL_PX4: added a read buffer to the UART driver this lowers the average cost of reading bytes by a large amount, and prevents the GPS driver from chewing lots of time.	12 years ago
Andrew Tridgell	76092eb590	AP_HAL: remove unused peek() interface from UART drivers this is a bit tricky to implement on some platforms, and is unused anyway	12 years ago
Andrew Tridgell	64a8a8e4c9	HAL_PX4: fixed using mavlink on the console this disables the ONLCR termios flag, which was injecting extra carriage returns in the output	12 years ago
Andrew Tridgell	30447018d5	HAL_PX4: handle %S in format strings	12 years ago
Andrew Tridgell	08d518e07f	HAL_PX4: switch to libc vdprintf() vdprintf has now been added to NuttX	12 years ago
Andrew Tridgell	44837a11f2	HAL_PX4: added baudrate support to UART driver	12 years ago
Andrew Tridgell	155fca8a4b	HAL_PX4: make APM sketches into daemons this also moves uartA onto UART5, allowing ttyS0 for nsh	12 years ago
Andrew Tridgell	d492b72a2c	HAL_PX4: use /dev/ttyS0 for uartA this also changes txspace and available to use FIONWRITE and FIONREAD	12 years ago
Andrew Tridgell	c6c336a6e8	HAL_PX4: implement peek() and available() keep a 1 byte buffer	12 years ago
Andrew Tridgell	d9d5eb52bf	HAL_PX4: use fd IO instead of stdio this allows for hal console output from within timers, which is very handy for debugging	12 years ago
Andrew Tridgell	9373a4e5b3	HAL_PX4: added a uartA driver uses stdin/stdout for IO	12 years ago

22 Commits (879d44f930f1824870aa1bca6b9f826b58498cde)