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rogerclarkmelbourne / Arduino_STM32

Arduino STM32. Hardware files to support STM32 boards, on Arduino IDE 1.8.x including LeafLabs Maple and other generic STM32F103 boards
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multichannel example has a bug #805

Closed afarhan closed 3 years ago

afarhan commented 4 years ago

The setup needs a startConversion to work: https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/master/STM32F1/libraries/STM32ADC/examples/MultiChannelContinuousConversion/MultiChannelContinuousConversion.ino

my_adc.setSampleRate(ADC_SMPR_1_5);//set the Sample Rate my_adc.setScanMode(); //set the ADC in Scan mode. my_adc.setPins(pins, 2); //set how many and which pins to convert. my_adc.setContinuous(); //set the ADC in continuous mode.

//set the DMA transfer for the ADC. //in this case we want to increment the memory side and run it in circular mode //By doing this, we can read the last value sampled from the channels by reading the dataPoints array my_adc.setDMA(data_points, 2, (DMA_MINC_MODE | DMA_CIRC_MODE), NULL); my_adc.startConversion(); <<------------------------------- this is needed

stevstrong commented 4 years ago

The example contains already the line: https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/6d884b1f7712853901fb1c4507a8b4fd6b564c4a/STM32F1/libraries/STM32ADC/examples/MultiChannelContinuousConversion/MultiChannelContinuousConversion.ino#L53

You maybe use an older version?

stevstrong commented 3 years ago

Closed due to inactivity.