i have problem with this define in stm32F1xx_ll_gpio.h LL_GPIO_PIN_8 ((GPIO_BSRR_BS8 << GPIO_PIN_MASK_POS) | 0x04000001U) /*!< Select pin 8 */ this have a "or" with 0x04000001U , why?

[FAndr.5]

..

[waclawek.jan]

Look at the Cube/LL functions which use this symbol, how is it used exactly.

JW

[FAndr.5]

Thanks, i see .