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When the STM32F030C8 external io port interrupt level is kept at 1.2V, the interrupt is always triggered and cannot come out.

MCU
March 17, 2021 by Matthew 400

External IO port interrupt, the initial setting is the rising edge trigger interrupt, but when the io port level is kept at 1.2V, the interrupt will not be triggered all the time. Have you encountered this problem?

All Comments

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James Posted on March 17, 2021

There is no clear interrupt flag.

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Emma Posted on March 17, 2021

Turn off the interrupt after triggering, and turn on the interrupt after the processing is completed. .

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Joseph Posted on March 17, 2021

1. You'd better refer to the history to check whether the program setting is correct and whether it is set to level trigger

2. Unless afterwards, the signs should be cleaned up in time,

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