A board can optionaly define RC_SERIAL_SWAP_USING_SINGLEWIRE
If the board is wired board with TX to the input (Swapped) and
the SoC does not support U[S]ART level RX-TX swapping to allow
useing onewire to do the swap if and only if:
RC_SERIAL_SWAP_USING_SINGLEWIRE is defined
RC_SERIAL_SWAP_RXTX is defined
TIOCSSWAP is defined and retuns !OK
TIOCSSINGLEWIRE is defined
- As it is always only used for the vehicle command ack message
- It was a duplicate, hence making it error prone for maintainment
- The uORB message comments were updated to make the relationship with
the MAVLink message / enum definitions clear
- this allows jumping straight to a non-SBUS RC protocol
- increased the scan time per protocol 300->500 ms, which the newer DSM parser seems to need in some cases.
- only set RC_INPUT_PROTO if we've had a successful RC lock for > 3 seconds
- RC_PORT_CONFIG is disabled by default if the board doesn't have
CONFIG_BOARD_SERIAL_RC set
- allows user facing custom RC configuration that overrides board
defaults
Using mixers on the IO side had a remote benefit of being able to
override all control surfaces with a radio remote on a fixed wing.
This ended up not being used that much and since the original design
10 years ago (2011) we have been able to convince ourselves that the
overall system stability is at a level where this marginal benefit,
which is not present on multicopters, is not worth the hazzle.
Co-authored-by: Beat Küng <beat-kueng@gmx.net>
Co-authored-by: Daniel Agar <daniel@agar.ca>
Send battery status (ghst_telemetry). Apply factors to show correct values of volts, amps and mAh. Change ghost protocol code to follow more MISRA C++ guidelines.
- always check system field for validity
- reject any data outside of "servo position" valid range from Spektrum specification
- properly support XPlus channels (12+)
- debug message if channel count changes
Some of these perf counters were useful during initial development, but realistically aren't needed anymore, some are redundant when we can now see the average interval from `work_queue status` and some of them simply aren't worth the cost at higher rates.
* adds a work_queue systemcmd that will bring a tree view of all active work queues and work items
* WorkQueues now track attached WorkItems and will shutdown when the last WorkItem is detached
A board only needs to define:
#define RC_SERIAL_PORT "/dev/ttyS4"
Then it can optionally define one or more of the following:
#define RC_SERIAL_SWAP_RXTX
#define RC_SERIAL_SINGLEWIRE
#define RC_INVERT_INPUT(_invert_true) px4_arch_gpiowrite(GPIO_SBUS_INV, _invert_true)
