Avoid To Include some HAL function of "stm32g0xx_it.c"

[modonga]

Hello everyone!. I'm looking for a way to prevent a function from the "stm32g0xx_it.c" library from being compiled because I'm using it in my MAIN code. The function is "void I2C2_IRQHandler(void)". What I do is to DELETE the function in the library but every time I GENERATE THE CODE it reappears in the library again and again.... Is there a way to prevent this function from compiling?

This is the function.

void I2C2_IRQHandler(void)
{
  /* USER CODE BEGIN I2C2_IRQn 0 */

  /* USER CODE END I2C2_IRQn 0 */
  if (hi2c2.Instance->ISR & (I2C_FLAG_BERR | I2C_FLAG_ARLO | I2C_FLAG_OVR)) {
    HAL_I2C_ER_IRQHandler(&hi2c2);
  } else {
    HAL_I2C_EV_IRQHandler(&hi2c2);
  }
  /* USER CODE BEGIN I2C2_IRQn 1 */

  /* USER CODE END I2C2_IRQn 1 */
}

PD.: The reason why I don't use the HAL library is because of the very long execution times in the HAL library.

[STTwo-32]

Hello @modonga 

I suggest you Wrap the function definition with an "#ifdef" block and a custom macro, and then control the compilation of that function by defining or not the macro.

Best Regards.

STTwo-32 

[modonga]

mmmmm. continue the "multiple definition of `I2C2_IRQHandler' error....

I create a file called "specialFuncI2C.h" and include in the "main.c"

specialFuncI2C.h:

#ifndef I2C_IRQ
#define I2C_IRQ
void I2C2_IRQHandler(void) {
bla...
bla...
bla...
}
#endif

[STTwo-32]

add an #ifdef block around the function definition to exclude it from the build:

#ifdef I2C2_IRQHandler
void I2C2_IRQHandler(void)
{
  /* function code here */
}
#endif

 Best Regards

STTwo-32

[modonga]

i recently tried but when i run the IOC code generator, the file "stm32g0xx_it.c" its updated and delete the

#ifdef I2C2_IRQHandler
#endif

tags...

[TDK]

Within a user code block at the top of the *_it.c file, put:

#define I2C2_IRQHandler unused_I2C2_IRQHandler

This will rename it as something else.