软件自学网站交换友情链接的要求有

gpio输出

1. 该函数库的目的就是在统一的地方配置，将配置的不同项放置在一个结构体内部
2. 使用一个枚举来定义一个的别名

led.c

#include <stdio.h>
#include "led/bsp_led.h"static led_t leds[LED_NUM]={{GPIOB,GPIO_PIN_2,RCC_APB2_PERIPH_GPIOB},{GPIOB,GPIO_PIN_1,RCC_APB2_PERIPH_GPIOB},{GPIOB,GPIO_PIN_0,RCC_APB2_PERIPH_GPIOB},{GPIOC,GPIO_PIN_5,RCC_APB2_PERIPH_GPIOC},{GPIOC,GPIO_PIN_4,RCC_APB2_PERIPH_GPIOC},{GPIOC,GPIO_PIN_3,RCC_APB2_PERIPH_GPIOC},{GPIOC,GPIO_PIN_2,RCC_APB2_PERIPH_GPIOC},{GPIOC,GPIO_PIN_1,RCC_APB2_PERIPH_GPIOC},{GPIOB,GPIO_PIN_3,RCC_APB2_PERIPH_GPIOB},};/*LED初始化
*/
static void bsp_led_init (led_t *pled)
{GPIO_InitType GPIO_InitStructure;/* Check the parameters */assert_param(IS_GPIO_ALL_PERIPH(pled->gpiox));RCC_EnableAPB2PeriphClk(pled->gpio_rcc, ENABLE);/* Configure the GPIO pin */if (pled->pin <= GPIO_PIN_ALL){GPIO_InitStruct(&GPIO_InitStructure);GPIO_InitStructure.Pin        = pled->pin;GPIO_InitStructure.GPIO_Current = GPIO_DC_12mA;GPIO_InitStructure.GPIO_Pull    = GPIO_No_Pull;GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;GPIO_InitPeripheral(pled->gpiox, &GPIO_InitStructure);}
}/*led 开关
*/
void led_on_off(em_led_t id,Bit_OperateType sta)
{led_t *pled=NULL;if(LED_NUM>id){pled =  leds+id;GPIO_WriteBit(pled->gpiox,pled->pin,sta);}}
/*led 闪烁
*/
void led_on_blink(em_led_t id)
{led_t *pled=NULL;if(LED_NUM>id){pled =  leds+id;GPIO_WriteBit(pled->gpiox,pled->pin,(Bit_OperateType)!GPIO_ReadOutputDataBit(pled->gpiox,pled->pin));}}/*一键初始化所有LED
*/
void bsp_leds_init(void)
{for(int i=0;i<LED_NUM;i++){bsp_led_init(leds+i);}
}

led.h

#ifndef _BSP_LED_H_
#define _BSP_LED_H_
#include <stdint.h>
#include "n32l40x.h"#define  ON   Bit_SET 
#define  OFF  Bit_RESETtypedef enum
{LED0,//LED1,//LED2,//LED3,//LED4,//LED5,//LED6,//led灯LED7,//led灯LED8,//485输出控制LED_NUM//gpio输出数量
}em_led_t;typedef struct
{GPIO_Module* gpiox;uint16_t pin;uint32_t gpio_rcc;
}led_t;/*一键初始化所有LED
*/
void bsp_leds_init(void);
/*led 开关
*/
void led_on_off(em_led_t id,Bit_OperateType sta);/*led 闪烁
*/
void led_on_blink(em_led_t id);#endif