Bluebridge cup internet of things basic graphic tutorial - GPIO output control LD5 on and off

Blue Bridge Cup Internet of things basic tutorial ——GPIO Output control LD5 Light out

（ This series of tutorials is for some people who have stm32 Basic students , Those who need to participate in the Blue Bridge Cup Internet of things competition , Yes HAL Library interested students to provide reference , This article will not go into detail about stm32 Basic principle guidance ）
Preparation ：
install keil5、STM32CubeMX And so on , Configure accordingly pack.
Refer to other tutorials on the network for details , This article will not be repeated .

1、 open STM32CubeMX New project

2、 Choose the chip model according to your chip type （ Here is STM32L071KBUx）

3、 Choose the clock
Since there is no need to consider accuracy （ After that, we need to consider the detailed setting of crystal oscillator ）, Directly set 24M Crystal oscillator （ Any size , You can also enter 32M）

4、 Set up GPIO The output mode （PC15 control LD5 Light out , to PC15 names LD5）

5、 Available in the left column GPIO Observe the area you set GPIO Detailed settings

6、 Generate project files

7、 Set up keil5, For editing 、 Download the code to prepare

8、 Open file , Edit your own code , control LD5 Light out （ Be careful CubeMX Mainly the initial function , In order to reduce the programmer's initialization operation , The logic part of the code still needs to be edited by programmers ）

Code ：

HAL_GPIO_WritePin(LD5_GPIO_Port,LD5_Pin,0); //PC15 Low level ,LD5 bright 
HAL_Delay(1000);														// Delay 1s
HAL_GPIO_WritePin(LD5_GPIO_Port,LD5_Pin,1);//PC15 High level ,LD5 destroy 
HAL_Delay(1000);

Observe the development board phenomenon
LD5 every other 1s Light up once