STM32F4 About the series

oren · ‎2025-02-05

Edit by ST Moderator: This post has been translated from Japanese to comply with the ST Community Terms and Conditions (§10.2).

The question is about the interrupt processing of the STM32F401RE.

After the STM32 was started (after the programme was started), external data was sent and data was received by PC6. At that time, it was confirmed that interrupts were generated and external data could be received.

On the other hand, do you know why interrupts do not occur when the STM32 is started (programme start) when external data is in the transmission state (state in which data is constantly being transmitted)?

Or is it a procedure that was not envisaged at the design stage?

SofLit · ‎2025-02-06

Hello,

Your question is not clear. What kind of interrupt are you using? EXTI? UART? other?

Also need to share your code and provide more details about the issue as the issue is not clear.

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