App.ADC

This module shows an example for using the analog digital converter. The ADC of the STM32 works best in combination with DMA transfers. This example turns the STM32 into a small digital storage oscilloscope. Thanks to DMA transfers, one can sample with precise timings and sampling rate is not limited by the speed of the Haskell code.

Documentation

adc3channel :: IO ()

sampleBlock :: FilePath -> IO ()

Periodically sample a block of data and write it to a file. In combination with a wave-form viewer that can detect file updates, this works as a poor mans' digital storage oscilloscope.