C language_assembly lighting_encapsulation function_A7 core

 include/led.h

#ifndef __LED_H__
#define __LED_H__

//声明一个结构体
typedef struct{
	unsigned int MODERl;
	unsigned int OTYPER;
	unsigned int OSPEEDR;
	unsigned int PUPDR;
	unsigned int IDR;
	unsigned int ODR;
}gpio_t;
#define GPIOE ((volatile gpio_t*)0x50006000)
#define GPIOF ((volatile gpio_t*)0x50007000)
#define RCC_MP_AHB4ENSETR (*(volatile int*)0x50000A28)

//封装函数
void my_InitLed(volatile gpio_t* GPIOX,int b);
void my_OnLed(volatile gpio_t* GPIOX,int b);
void my_OffLed(volatile gpio_t* GPIOX,int b);
#endif

src/led.c

#include "led.h"

void my_InitLed(volatile gpio_t* GPIOX,int b)
{
	GPIOX->MODERl &= (~(0x3 << (2*b)));
	GPIOX->MODERl |= (0x1 << (2*b));
	GPIOX->OTYPER &= (~(0x1 << b));	
	GPIOE->OSPEEDR &= (~(0x3 << (2*b)));
	GPIOE->PUPDR &= (~(0x3 << (2*b)));
}
void my_OnLed(volatile gpio_t* GPIOX,int b)
{
	GPIOE->ODR &= (~(0x1 << b));
}
void my_OffLed(volatile gpio_t* GPIOX,int b)
{
	GPIOE->ODR &= (~(0x1 << b));
}

main.c

#include "led.h"
extern void printf(const char *fmt, ...);
void delay_ms(int ms)
{
	int i,j;
	for(i = 0; i < ms;i++)
		for (j = 0; j < 1800; j++);
}

int main()
{

	RCC_MP_AHB4ENSETR |= (0x1 << 4);
	RCC_MP_AHB4ENSETR |= (0x1 << 5);

	my_InitLed(GPIOE,10);
	my_InitLed(GPIOF,10);
	my_InitLed(GPIOE,8);
	while(1)
	{
		my_OnLed(GPIOE,10);
		delay_ms(1000);
		my_OffLed(GPIOE,10);
		delay_ms(1000);
    	my_OnLed(GPIOF,10);
		delay_ms(1000);
		my_OffLed(GPIOF,10);
		delay_ms(1000);
		my_OnLed(GPIOE,8);
		delay_ms(1000);
		my_OffLed(GPIOE,8);
		delay_ms(1000);
	}
	return 0;
}