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Hello Everyone, Please is it possible to trigger an adc conversion in DMA mode using external interrupt from gpio pin . I am using stm32f303re.

Patukes
Associate III
 
1 ACCEPTED SOLUTION

Accepted Solutions
Javier1
Principal

Yes it is.

0693W00000FDP6KQAX.pngIn CubeMX you can see what external triggers could the ADC have.

Im sure there is a better way to address your problem but you could trigger the ADC with a "Regular Conversion Launched by software" inside your EXTINT callback

Then you can just configure the DMA to take care of the ADC readings as they come

Available for consulting/freelancing , hit me up in https://github.com/javiBajoCero

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2 REPLIES 2
Javier1
Principal

Yes it is.

0693W00000FDP6KQAX.pngIn CubeMX you can see what external triggers could the ADC have.

Im sure there is a better way to address your problem but you could trigger the ADC with a "Regular Conversion Launched by software" inside your EXTINT callback

Then you can just configure the DMA to take care of the ADC readings as they come

Available for consulting/freelancing , hit me up in https://github.com/javiBajoCero
Patukes
Associate III

Thank you very much @Javier Muñoz​ . I will try this out