On 28/04/2021 18.32, Jonathan Cameron wrote:
When buffered sampling is enabled, the accelerometer will dump data into
the internal fifo and interrupt at watermark. Then the driver flushes
all data to the iio buffer.
As the accelerometer doesn't have internal timestamps, they are aproximated
between to interrupts.
two?
This tends to be a noisy approach, so people often try to apply a filter.
However, no need to do that for an initial version.
There are some things in here referring to enabling triggered modes, but I'm
not seeing code to actually do so. The fun question when dealing with fifos
and triggered mode is what the interface is to switch between the two.
One option I think we've used before is to just have 'no trigger' match
up to fifo mode and if a trigger is set, don't use the fifo.
Thanks Jonathan.
Fixed the above text to:
As the accelerometer doesn't have internal timestamps,
they are approximated between the current and last interrupt.
I don't know the correct term here, the accelerometer via the watermark,
is doing interrupts.
Is that called no-trigger / trigger ?
/Sean
