AerospaceNU / AerospaceNU/stm32-avionics
Barometer reads happen serially and thus are slower
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Description
In GitLab by @SamHaggans on Feb 8, 2023, 15:01
In `Devices/barometer_ms5607.c` in the `barometerMs5607_getData`, we delay using `HAL_DELAY` twice for each reading, each for 2ms. This is necessary because of how the barometer samples data to determine pressure. However, we do this twice (once per each physical device), but we could instead perform the conversions in parallel.
To make them work in parallel, we would want to create new functions to start the D1 and D2 conversions so that we could run them in parallel in `hm_readSensorData` in `system/hardware_manager.c`, something like:
`barometerMs5607_requestD1Conv(&barometerMs5607[i]);` for both barometers
Delay
`barometerMs5607_readPressure(&barometerMs5607[i]);` for both barometers
`barometerMs5607_requestD2Conv(&barometerMs5607[i]);` for both barometers
Delay
`barometerMs5607_readTemp(&barometerMs5607[i]);` for both barometers
`barometerMs5607_processData(&barometerMs5607[i]);` for both
There is also the possibility of, instead of `HAL_Delay`ing (which just does nothing for the time) spending that time reading other sensors or things to save even more time, although just parallelization like above will be useful.
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