In adc_calibrate_async() we should only set the ADCAL bit and leave the rest alone.
While in the past there were only "rs" bits in this register, this is no
longer the case.
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Only applied to STM32 doc trees at present.
Instead of declaring a group for "STM32blah" in the doc-blah.h files,
and then trying to put all the common+specific peripheral code into
those groups, (which is what led to the stub doxygen holder empty .c
files) Just use a standard name like "Peripheral APIS" and place
everything into that.
Demonstrated by converting ADC and USART peripherals, which is
definitely not complete, but it shows how to make things less magical,
and less prone to copy/paste errors. Now, you can copy/paste and it
will do the right thing, because everyone uses the same group names.
This is also how to unify the mix of "STM32blah->Periphblah" and _also_
the dangling "periph_file" modules in doxygen, it merges them together
properly, as they're intended to be really.
The ADC v2 peripheral doesn't have the same behaviour of starting, where
the hardware clears the bit immediately, on v2, it is not cleared until
the ADC is stopped, or the end of sequence flag is set.
Fixes https://github.com/libopencm3/libopencm3/issues/557
Extract the calibration code from the f0, and share it with the other
adc-v2 peripheral users (f0,l0,f3,l4)
Uses the same naming set of is/async naming conventions requested by the
RTOS guys instead of having blocking only calls.
Old code:
adc_calibrate_start(ADC);
adc_calibrate_wait_finish(ADC);
New code (blocking):
adc_calibrate(ADC);
New code (asynch):
adc_calibrate_async(ADC);
// do stuff
adc_is_calibrating(ADC); // will be false when it's finished.
Old code for f0 is still available, but marked deprecated.
The f0, f30x and l0 have a very similar "v2" adc peripheral.
Start extracting out some of the common code, and fix the glaring bug in
adc_power_down that was affecting them both.
This is not intended to be a fully comprehensive extraction, just the first
easy steps.
