What is meant by Exported Constants ? As in, GPIO_LL_Exported_Constants

[Gudgel.boB]

Again, trying to find out what is meant ...

I saw the letters "EC" and found what it stood for and now wondering why.

For example I saw idefgroup GPIO_LL_EC_PIN PIN and tracked down,

GPIO_LL_Exported_Constants

#define LL_GPIO_PIN_0           GPIO_BSRR_BS_0 /*!< Select pin 0 */

#define LL_GPIO_PIN_1           GPIO_BSRR_BS_1 /*!< Select pin 1 */

Exported from what/where ? To me these are just typical STM32 peripheral or pin definitions that do not even need the "LL" for Low Layer (Low Level) that I found last night.

It is more confusing I think but still wondering about exported in this context.

Thanks,

boB