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17 Commits

Author SHA1 Message Date
Andrew Tridgell e4ce2f532b HAL_ChibiOS: make smaller builds possible 
this allows for much smaller builds when you disable a lot of
options. This is part of an effort to create a bootloader of less than
16k using ChibiOS
 2018-04-12 11:50:44 +10:00
Andrew Tridgell e448b5d069 HAL_ChibiOS: implement UART port locking 2018-04-07 09:10:29 +10:00
Andrew Tridgell bc32276966 HAL_ChibiOS: support DShot output 
use DMAR burst DMA to minimise number of DMA channels needed

thanks to betaflight for the great reference implementation!
 2018-04-07 09:10:29 +10:00
Andrew Tridgell a64819cbf2 HAL_ChibiOS: minimise DMA TX latency on contended UARTs 
try to prevent long delays on other users of a DMA channel
 2018-04-07 09:10:29 +10:00
Andrew Tridgell 556f3ba53f HAL_ChibiOS: make UARTs non-blocking by default 
we never want blocking ports any more with ArduPilot, so defaulting to
blocking makes no sense
 2018-03-02 21:39:38 +11:00
Andrew Tridgell 306d35655e HAL_ChibiOS: allow for bare board builds 
this allows for a build with no UARTs, no SPI, no I2C, no PWM. Great
for initial board bringup with just USB
 2018-03-02 12:52:50 +11:00
Andrew Tridgell 82f1f462ae HAL_ChibiOS: ensure we don't init a uart driver twice 2018-02-07 20:33:45 +11:00
Andrew Tridgell dce4c90467 HAL_ChibiOS: moved UART thread to UART driver 
use an event model for triggering sends from tx complete DMA handler
for unbuffered uarts
 2018-02-07 20:33:45 +11:00
Andrew Tridgell 979a2a4796 HAL_ChibiOS: removed debug code 2018-02-07 20:33:45 +11:00
Mark Whitehorn b94b1dcd97 AP_HAL_ChibiOS: add missing declaration 2018-02-07 20:33:45 +11:00
Siddharth Purohit 02696882e9 HAL_ChibiOS: if unbuffered write, do continue to invoke DMA writes 
adds higher latency to device sharing DMA
 2018-02-07 20:33:45 +11:00
Andrew Tridgell ad26ca4a27 HAL_ChibiOS: implement parity and stop bits controls 2018-02-07 20:33:45 +11:00
Andrew Tridgell 3f2cc2c9d6 HAL_ChibiOS: implement low latency UART writes 
this implements the set_unbuffered_writes() API by performing writes
directly in the write() call and not from a timer
 2018-02-07 20:33:45 +11:00
Andrew Tridgell 865e4f3104 HAL_ChibiOS: implement _timer_tick in UARTDriver 2018-02-07 20:33:45 +11:00
Andrew Tridgell f14a847b97 HAL_ChibiOS: rename classes to remove 'Chibi' 
it is redundent as all classes are in ChibiOS namespace, and makes the
code harder to read
 2018-01-15 11:46:02 +11:00
Andrew Tridgell 41be81af34 HAL_Chibios: added hardware flow control for UARTs 
implement RTS in software and CTS in hardware
 2018-01-15 11:46:02 +11:00
Andrew Tridgell 8b6bab7b17 HAL_Chibios: added ChibiOS HAL 
this is based on initial work by Sid, reset here for easier merging
 2018-01-15 11:46:02 +11:00