427e00dd41
HAL_ChibiOS: switched to system timer for AP_HAL::micros()
...
this uses the ChibiOS system timer instead of a separate GPT timer for
the core ChibiOS timer. The advantage is it saves us a timer, plus it
changes ChibiOS to use a 1MHz clock on its timer, which gives us
higher resolution for delays.
This has a remarkable effect on timing jitter, reducing it greatly
2018-02-14 18:27:00 +11:00
b7c4dea9d3
HAL_ChibiOS: gain back 250usec in loop time
...
if we have already called delay_microseconds_boost() then we know
we've given up time to drivers, so we can avoid the extra delay in the
HAL
2018-02-13 17:15:05 +11:00
aee6462deb
HAL_ChibiOS: enable I2C clearing on F412 board only
...
may be needed on other boards in the future, but for now we only know
its needed on an I2C 20789, which is rare
2018-02-08 17:36:33 +11:00
40142e5aef
ChibiOS: implement way to clear i2c bus by toggling clock line
2018-02-08 17:36:33 +11:00
23555f4c25
HAL_ChibiOS: allow for empty storage during bringup
...
useful when storage backend driver isn't written yet
2018-02-07 20:33:45 +11:00
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
468cadca45
HAL_ChibiOS: auto-generate UART driver declarations
2018-01-15 11:46:02 +11:00
d1f93cd66c
HAL_Chibios: auto-generate I2C, SPI and UART device lists
...
this is less error prone and make a port faster as more information is
in hwdef.dat
2018-01-15 11:46:02 +11:00
5feef04f5f
HAL_ChibiOS: add support for CCM memory
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this uses DMA bounce buffers for bus transfers, and falls back to CCM
ram in allocations if the type is unspecified
2018-01-15 11:46:02 +11:00
26d6947bf6
HAL_ChibiOS: fixed PWM output
2018-01-15 11:46:02 +11:00
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
Andrew Tridgell
Siddharth Purohit