Difenrence between pin mcu pin and gpio port

[wjian.2]

if one pin have two pin name for example d14 could be mcu pin as PD12 ,o PA9 at gpio port. But for gpio_init()should be PD12, the PA9 is for which part to use?

[Tesla DeLorean]

What part number are you talking about?

Is D14 a ball number? An Arduino rail identifier? ... Make your posts self contained with sufficient detail to understand your situation.

[TDK]

Don't confuse pinout of board connectors with pinout of the STM32 chip itself. HAL code always uses the pin names on the chip itself.