#include "key.h"

#include "led.h"

u8 led_stuta = 0;

void KEY_GPIO_init(void)//3õê¼»ˉ1ü½Å

{

/*********¶¨òåò»¸öGPIO_InitTypeDef ààDíμĽá11ìå**********/

GPIO_InitTypeDef GPIO_InitStructure;

/*********Ñ¡Ôñòa¿ØÖÆμÄGPIOxμÄòy½Å**********/

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;

/*********éèÖÃòy½ÅËùÂêÎa50MHZ**********/

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

/*********éèÖÃòy½ÅÄ￡ê½Îaí¨óÃíÆíêêä3ö**********/

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

/*′ò¿aLEDê1óÃμÄGPIOμÄê±Öóê1Äü*/

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_AFIO,ENABLE);

/*3õê¼»ˉÏàó|μÄGPIO*/

GPIO_Init(GPIOB, &GPIO_InitStructure);

}

void EXTI_init(void)

{

EXTI_InitTypeDef EXTI_InitStructure;

GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource6);

EXTI_InitStructure.EXTI_Line = EXTI_Line6;

EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;

EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;

EXTI_InitStructure.EXTI_LineCmd = ENABLE;

EXTI_Init(&EXTI_InitStructure);

}

void NVIC_init(void)

{

NVIC_InitTypeDef NVIC_InitStructure;

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);

NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

NVIC_Init(&NVIC_InitStructure);

}

void EXTI9_5_IRQHandler(void)

{

if(EXTI_GetFlagStatus(EXTI_Line6)!=RESET)

{

GPIO_SetBits(GPIOB, GPIO_Pin_8);

GPIO_SetBits(GPIOB, GPIO_Pin_9);

}

else

{

GPIO_ResetBits(GPIOB, GPIO_Pin_8);

GPIO_ResetBits(GPIOB, GPIO_Pin_9);

}

EXTI_ClearITPendingBit(EXTI_Line6);

}

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