• State Not Answered
  • Locked Locked
  • Replies 1 reply
  • Subscribers 21 subscribers
  • Views 1417 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

DMA Trigger via input GPIO Pin

Hirbel Hannes

Hi,

is it possible to start a DMA transaction by a falling edge on a GPIO pin?

I used the EXTI configuration for this input pin and in the EXTI-ISR i can trigger the DMA.
But i think this is not a really good solution, because of a trigger-signal of 9 - 18 MHz.
So i want to trigger the DMA by the hardware.

Greetings Hirbel