if the accuracies reported are very low then we can do a division by
zero and this results in a constraining NaN for GPS vertical velocity
filter in NavEKF3_core::calcGpsGoodToAlign
this fixes a bug that happens with VISION_SPEED_ESTIMATE from a
companion computer, which may come in before the EKF buffers are
allocated. That causes a push to an uninitialised ringbuffer which
triggers memory corruption
found using the new memory guard system
this fixes a bug that happens with VISION_SPEED_ESTIMATE from a
companion computer, which may come in before the EKF buffers are
allocated. That causes a push to an uninitialised ringbuffer which
triggers memory corruption
found using the new memory guard system
this fixes an issue seen on one board which caused a watchdog on high
uart DMA load. We have reproduced the issue on another board by
forcing a very high DMA transfer rate on the same DMA channel while
also requesting very high transfer rates on the UART. The likely race
is in the DMA transmit timeout code, and the simplest fix is to lock
out interrupts during the DMA setup to ensure the tx timeout cannot
trigger during the setup
when we are looking for FPort input, we normally switch UART3 on the
IOMCU to 115200 to look for inverted inputs at 115200 baudrate. We
need to disable this switching when we have SBUS output enabled to
prevent a change in the SBUS output baudrate
Many thanks to afishman for finding this bug
Fixes#15522
this prevents mis-calculation of the angle when RC input goes outside
of the configured range. This impacted on throttle nudge in plane when
reverse thrust was enabled
thanks to Pompecukor for reporting!