Configure ADC for fixed conversion rate

[martindusek]

Hi, what is the easiest way to configure KL25 ADC to output conversions at a fixed rate of 50 Hz? Is it possible to achieve this using only the ADC module or do I have to use timer module to trigger each conversion at the correct moment?

[mjbcswitzerland]

Hello Martin

If you set the ADC in continuous conversion mode with highest accuracy, slowest ADC clock, maximum HW averaging and longest time added it will fire at about 650Hz.

Therefore, the method to use to get accurate 50Hz triggering is to use hardware trigger mode based on a PIT timer.

Regards

Mark

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