Bit end timer must by shifted by half-bit period to startbit edge, so that next edges are in middle of bit interval. This behavior was masked with old timer code, but noise immunity was probably very low.
This is first part of new softserial code. Main timer code is changed, changes to rest of code are kept to minimum.
macros for BASEPRI based synchronization are added to project (atomic.h)
TIMER_PERIOD fixed in pwm_rx.c
- NVIC priorities are moved to separate file, all values are replaced wit symbolic names. Priorities should be the same.
- tiny change in DMA initialization
series development board.
These boards can be picked up for less than $11, coupled with a 10DOF
sensor board they make a great development platform or cheap expandable
FC.
Pretty much all pins are available to be used, unlike on the less
capable and more expensive OLIMEXINO.
This required timer overflow events to be used in the calculation of PPM
channel data.
CC3D tested, other targets may be unstable as a result. Needs further
testing.
