Nokia 5110 LCD missing GPIO.c

[darr1s]

As title, GPIO.c and GPIO.h is not included in project file. Manually including tmlib/gpio built but does not display any character.

Device: STM32F411RE
Pin: According to https://stm32f4-discovery.net/pcd8544-nokia-33105110-lcd-stm32f429-discovery-library/

Thanks.