How to test GPIO interrupt handlers

Hello @pass3master ,

In next time please provide the MCU part number.

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@pass3master wrote:

 but is it possible to set the pin assigned to the GPIO interrupt High/Low in software?

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Yes it's possible to set the rising and falling edges.

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@pass3master wrote:

Is this only possible by inputting a signal to the target GPIO from outside?

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Not clear what do you mean by this. As you will use GPIO it's for sure from outside.

Also you refer to one of the examples provided in CubeHAL: https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/NUCLEO-H743ZI/Examples/GPIO/GPIO_EXTI

On most STM32s you can trigger any NVIC interrupt by software. But you likely want to test the whole path from the pin -> EXTI -> NVIC -> handler. As @mƎALLEm said. How to do this?  The simplest way: connect the EXTI pin to some other pin configured as push/pull.

> is it possible to set the pin assigned to the GPIO interrupt High/Low in software?

Probably the easiest way is to configure the pin as an output and toggle it. That will trigger the interrupt.