How to distinguish the multiple spi interrupt is there which hspi is get interrupted?

[MDeva.1]

Hello,

I am working on stm32h745. I have to use 3 spi in interrupt mode, then how I can know which spi is get interrupted?

[TDK]

If you're using HAL, the function will pass a handle. Check the handle instance with the relevant SPI peripheral.

if (hspi->Instance == SPI1) {
  ...
} else if (hspi->Instance == SPI2) {
  ...
}

[LBöhm.1]

Every SPI Controller has its own interrupt handler.

[MDeva.1]

This error is getting

[TDK]

Okay, well you didn't write what I wrote, so the error is expected.

Either compare the instance or the handle. Don't compare the instance against the handle. The error message is descriptive of the problem.

[MDeva.1]

How to solve thise Can you please elaborate how to solve

[Tesla DeLorean]

Match the right things.. with equivalent TYPES

hspi == &hspi3

Preferred is

hsip->Instance == SPI3

The address of the PERIPHERAL instance, not the handle/pointer to the structure pointer

[TDK]

Compare against SPI3 instead of hspi3.

[Piranha]

TDK wrote an exact example, but the person is not even capable of doing a copy-paste...

And the code inside is just totally broken. Shifting something left by 8 bits and then assigning to 8-bit variable will always result in zero. All of those shifts seem to be trying to do what a simple casting can do. The ADC range is 4096 values, not 4095. And then dividing an integer with an ADC range also as an integer, will again result in a zero.