[FEATURE] AS5600 I2C optimization

[HoeckDK]

To optimize the time spend on reading the I2C sensor, I remove the following from MagneticSensorI2C::getRawCount():

wire->beginTransmission(_conf.chip_address);
wire->write(_conf.angle_register);

currWireError = wire->endTransmission(false);

It seems the AS5600 happily responds without being directed repeatedly.

Instead of it I run the above lines on setup and when the motor is idle (I do not execute FOC at that point)

Seems to work reliable.

Describe the solution you'd like
An option to only run the above 3 lines at startup. And have a call specific function to call to replace the above actions, when desired/required.

Describe alternatives you've considered
Modify MagneticSensorI2C::getRawCount()

Additional context
Add any other context or screenshots about the feature request here.

[runger1101001]

Please take a look at our dedicated driver for the AS5600 here: https://github.com/simplefoc/Arduino-FOC-drivers/tree/master/src/encoders/as5600
I believe it already implements this "fast mode" where you don't close the transactions between reads.

Since the generic MagneticSensorI2C also handles other kinds of I2C sensors, I don't think we plan to add this AS5600 specific optimization there.

[HoeckDK]

Thanks for the hint. It seems to be even better than my hack.