Stm32f103c8t6 firmware library lighting

summary ： Configure lighting graphic description through firmware library

1. In the firmware library folder USER Create a folder in LED, stay LED Create text in folder ,LED.C,LED.H

2. stay keil Middle double click user The folder will c Add the file

3. stay c Add the required header file to the file , This time we need

#include "led.h"
#include "stm32f10x.h"

  Compile once after adding

4. open led.h, Add... To it

#include "stm32f10x.h"

5. Add a path to the magic wand

7. Write led-init Function configuration GPIO Structure  

It can be seen from the schematic diagram that LED Corresponding PC13, We need to configure GPIOc The clock of ,GPIOc Mounted on APB2 On , So it needs to be turned on APB2 The clock on the computer .

 GPIO_InitTypeDef It includes

Pin , Speed ( You can choose any one for the time being ), The output mode ( Push pull output ) 

Use GPIO_Init(); Function initialization on GPIO, The first parameter is GPIOX, The second is the address of the structure variable

stay h Relevant functions are described in the document

 

8. stay main.c Initialization function used in

9. You need to use two functions ,GPIO_SetBit()[ Set up 1] and  GPIO_RsetBit()[ Set up 0]

From the schematic diagram, you want LED bright GPIO One end should be placed 0 In order to have enough pressure difference to make LED bright

GPIO_ResetBits(GPIOC,GPIO_Pin_13);

10. compile , Swipe after no error