led blinking

[Jad]

good morning

i want to create a simple led blinking code. for that, i got the path of the led 8 of my aek-mcu-c4mlit1. it is pk1gpio1 and is connected to the branch 25. i connected it on the gui and wanted to code in my main. unfortunately, C recognizes port k but not the pin that i just pinned and the function that makes it blinks. so my 2 questions are: how to make it recognize the pin and how to get functions that work 

kind regards

[Jad]

thank you for your response. in fact i already saw those videos but i wanted to use the leds tht are already deirectly on my oard. i wondered if there are also tutorials for the management of interruptions, the clock and the use of the librarys.