Interrupt problem on stm32f7 (bare-metal)

[Paul_TESSON]

Hello, I would like to contact you because, following the code made on Keil uvision 5, I cannot get my interrupt to work.
Objective of the code, turn on and off the LED (pb0) of the card with the button (pc13) on it itself.
PCB Used : STM32F767ZI

[STTwo-32]

Hello @Paul_TESSON 

I suggest you to refer to this LL_example to understand the configuration. Then you can convert it to use direct register programming if you want.

Best Regards.

STTwo-32 

[TDK]

Is SCB->VTOR set to 0x08000000?

Can you step through and verify GPIOC->IDR reflects that the pin is toggling?

[waclawek.jan]

Start with plain loopdelay blinky.

Then proceed with copying state of button into LED in a loop.

Buttons are bouncy, EXTI on a pushbutton is not a good idea (except for simple experiments).

Generally, read out and check/post content of relevant GPIO and EXTI and SYSCFG registers.

A generic "interrupt does not fire" checklist here.

JW

[Paul_TESSON · Accepted solution]

I have found the problem, we must remove pupdr.