Configure a GPIO pin as EXTI

[Alex_reynold]

Hello, 

I am trying to build a api in stm32 cube ide with base mcu as nucleo board.i am planning to build a api with input parameters GPIO_PIN,IRQ_HANDLER_FUN.

UserAPI_exticf(GPIO_PIN,IRQ_HANDLER_FUNC)

{}

I don't want ot configure gpio as exti in .ioc file and use it main c

I want everythibg to be done in UserAPI_exticfg.

 

If you have such reference code or libraries please share it.

 

[MM..1]

 LL_EXTI_SetEXTISource(LL_EXTI_EXTI_PORTB, LL_EXTI_EXTI_LINE11);
 LL_EXTI_EnableRisingTrig_0_31(LL_EXTI_LINE_11);
 LL_EXTI_EnableFallingTrig_0_31(LL_EXTI_LINE_11);
 LL_EXTI_EnableIT_0_31(LL_EXTI_LINE_11);
 HAL_NVIC_SetPriority(EXTI11_IRQn, 5, 0);
 HAL_NVIC_EnableIRQ(EXTI11_IRQn);

some inspiration as you can see your func require port info too.

[Andrew Neil]

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@MM..1 wrote:

 your func require port info too.

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@Alex_reynold  Will also need the EXTIxxx_IRQn 

You haven't said what STM32 you're targetting, but there isn't a 1:1 relationship between Pin number and EXTI line

[Alex_reynold]

Dear @Andrew Neil ,

I am using a sensor which generate a interate upon anew event.

I am building api to fetch data from sensor upon reading interrupt.this avoids unnecessary polling.

You want to suggest like this??

UserAPI_exticf( GPIO_PORT, GPIO_PIN, IRQ_HANDLER_FUNC )
{

}

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Edited to apply source code formatting - please see How to insert source code for future reference.