STM32F103 LED flashing program realized by four methods

This procedure is to light two LED, Respectively LED1 and LED2, Connect to several ports respectively GPIOB Of 0 Feet and 1 foot .

So first of all GPIOB Of 0 Feet and 1 Pin type initialization .

First create LED Driver program , LED.H and LED.C

LED.H

#ifndef __LED_H
#define __LED_H 
#include "sys.h"

//#define LED1 PBout(0)// PB0
//#define LED2 PBout(1)// PB1 
#define LEDPORT GPIOB // Definition LED Of IO Interface 
#define LED1 GPIO_Pin_0 // Definition LED1  Of IO Interface 
#define LED2 GPIO_Pin_1 // Definition LED2  Of IO Interface 

void LED_Init(void);// initialization  
#endif

LED.C

#include "led.h"

void LED_Init(void){
     //LED Lamp interface initialization 
	GPIO_InitTypeDef  GPIO_InitStructure; 	    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC,ENABLE);   // Set up A,B,C Three port enable clock  
    GPIO_InitStructure.GPIO_Pin = LED1 | LED2; // Select the port number （0,1 Port no. ） 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; // Set up IO The working mode of the interface is push-pull output  
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; // Set up IO Interface speed 50MHz
	GPIO_Init(LEDPORT, &GPIO_InitStructure);			
}
 
/*  choice IO How the interface works ： GPIO_Mode_AIN  Analog input  GPIO_Mode_IN_FLOATING  Floating input  GPIO_Mode_IPD  Drop down input  GPIO_Mode_IPU  Pull up input  GPIO_Mode_Out_PP  Push pull output  GPIO_Mode_Out_OD  Open drain output  GPIO_Mode_AF_PP  Multiplexing push pull output  GPIO_Mode_AF_OD  Reuse open drain output  */

establish MAIN Program
main.c

#include "stm32f10x.h" //STM32 The header file 
#include "sys.h"
#include "delay.h"
#include "led.h"


int main (void){
    // The main program 
	RCC_Configuration(); // The clock is set 
	LED_Init();
	while(1){
    
		
		// Method 1：
		GPIO_WriteBit(LEDPORT,LED1,(BitAction)(1)); //LED1 Interface output high level 1
		delay_us(50000); // Time delay 1 second 
		GPIO_WriteBit(LEDPORT,LED1,(BitAction)(0)); //LED1 Interface output low level 0
		delay_us(50000); // Time delay 1 second 
		
		// Method 2：
// GPIO_WriteBit(LEDPORT,LED1,(BitAction)(1-GPIO_ReadOutputDataBit(LEDPORT,LED1))); // Take the opposite LED1
// delay_ms(500); // Time delay 1 second 

		// Method 3：
// GPIO_SetBits(LEDPORT,LED1); //LED The lights are high level （1）
// delay_s(1); // Time delay 1 second 
// GPIO_ResetBits(LEDPORT,LED1); //LED The lights are all low level （0）
// delay_s(1); // Time delay 1 second 

		// Method 4
// GPIO_Write(LEDPORT,0x0001); // Direct numeric operations write variable values to LED
// delay_s(2); // Time delay 1 second 
// GPIO_Write(LEDPORT,0x0000); // Direct numeric operations write variable values to LED
// delay_s(2); // Time delay 1 second 
	}
}