#include "led.h"
#include "delay.h"
#include "sys.h"
#include "stm32f10x.h"
#include "stdio.h"
#include "key.h"
#include "usart.h"
#include "drive_dht11.h"
#include "bh1750.h"
#include "drive_lcd1602.h"

#define KEY_GPIO_PROT   GPIOA 
#define KEY1_GPIO_PIN 	GPIO_Pin_0
#define KEY2_GPIO_PIN 	GPIO_Pin_1
#define KEY3_GPIO_PIN 	GPIO_Pin_2
//#define KEY4_GPIO_PIN 	GPIO_Pin_3
//#define KEY5_GPIO_PIN 	GPIO_Pin_4

#define KEY1_IN GPIO_ReadInputDataBit(KEY_GPIO_PROT,KEY1_GPIO_PIN)
#define KEY2_IN GPIO_ReadInputDataBit(KEY_GPIO_PROT,KEY2_GPIO_PIN)
#define KEY3_IN GPIO_ReadInputDataBit(KEY_GPIO_PROT,KEY3_GPIO_PIN)
//#define KEY4_IN GPIO_ReadInputDataBit(KEY_GPIO_PROT,KEY4_GPIO_PIN)
//#define KEY5_IN GPIO_ReadInputDataBit(KEY_GPIO_PROT,KEY5_GPIO_PIN)

void key_gpio_init(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC, ENABLE);
	GPIO_InitStructure.GPIO_Pin  = KEY1_GPIO_PIN|KEY2_GPIO_PIN|KEY3_GPIO_PIN;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; 
 	GPIO_Init(KEY_GPIO_PROT, &GPIO_InitStructure);
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
}


u8 humi=0;//湿度值
u8 temp=0;//温度值
u8 buffer[10]={0}; 
u16 GzVal=0;  //实际光照值
char ShowBuf[16]={0};
u8 set_flag=0;
u8 set_temp=0;//设置值
u8 set_humi=0;
u16 set_gz=0;

int key_Task(void)
{
   static char key_flag=0;
	 if(KEY1_IN==0|KEY2_IN==0|KEY3_IN==0)
	 {
	    if(key_flag==0)
			{
			   key_flag=1;
				 if(KEY1_IN==0)
				 {
						if(++set_flag>3)set_flag=0; 
				 }
				 else if(KEY2_IN==0)
				 {
						switch(set_flag)
						{
						  case 1:
								if(++set_temp>50)set_temp=0;
							break;
							
							case 2:
								if(++set_humi>95)set_humi=0;
							break;
							
							case 3:
								set_gz+=10;
								if(set_gz>5000)set_gz=0;
							break;
						}
				 }
				 else if(KEY3_IN==0)
				 {
						 switch(set_flag)
						{
						  case 1:
									if(--set_temp==0)set_temp=50;
							break;
							
							case 2:
								 if(--set_humi==0)set_humi=95;
							break;
							
							case 3:
								
								if(set_gz>10)set_gz-=10;
							break;
						}
				 }
			}
	 }else
	 {
			key_flag=0;
	 }
	 return 20;
}

void TIMER3_Int_Init(u16 arr,u16 psc)
{
	 TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStrue;
 	 NVIC_InitTypeDef NVIC_InitStructure;

	 TIM_TimeBaseInitStrue.TIM_Period=arr;
	 TIM_TimeBaseInitStrue.TIM_Prescaler=psc;
	 TIM_TimeBaseInitStrue.TIM_CounterMode=TIM_CounterMode_Up;
	 TIM_TimeBaseInitStrue.TIM_ClockDivision=TIM_CounterMode_Up;
   RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
   TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStrue);
   
   TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE);//使能TIM3更新中断

   //中断优先级NVIC设置
		NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;  //TIM3中断
		NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //先占优先级0级
		NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;  //从优先级3级
		NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道被使能
		NVIC_Init(&NVIC_InitStructure);  //初始化NVIC寄存器
	
		TIM_Cmd(TIM3, ENABLE);  //使能TIMx	

}

u16 GetTimer=0;//采集时间计数器 
void TIM3_IRQHandler(void)//中断服务程序 
{
   if(TIM_GetITStatus(TIM3,TIM_IT_Update)==SET)//SET为1 
	 {
		     GetTimer++;//采集计数器
         TIM_ClearITPendingBit(TIM3,TIM_IT_Update);		//清除TIM3的更新中断标志

				 key_Task();//扫描按键
		  
	 }
}


u8 GetFlag=0;

uint8_t  RecBuff[16]={0};

int main(void)
{	 

  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置中断优先级分组为组2：2位抢占优先级，2位响应优先级
	delay_init();	    	 //延时函数初始化	  
 	LED_Init();		  			//初始化与连接的硬件接口
	uart_init(115200);
	delay_ms(1000);
	TIMER3_Int_Init(10000,71);//定时器初始化 //10ms进一次中断
	key_gpio_init();
	Init_Lcd1602();
 	while(1)
	{	 	
		if(GetTimer>50)//500ms显示一次
		{

				GetTimer=0;//清零
			if(set_flag==0)
			 {
				 L1602_printf(0,0,"T:%2d H:%2d L:%4d",temp,humi,GzVal);//打印显示实际数据
				 L1602_printf(0,1,"  %2d   %2d   %4d",set_temp,set_humi,set_gz);//打印显示设置数据
				 
				 if(temp>set_temp||humi>set_humi||GzVal>set_gz)
				 {
				   BUZZ_LED0^=1;//报警嘀嘀嘀
				 }else
				 {
				   BUZZ_LED0=0;
				 }
			 }else
			 {
			    L1602_printf(0,1,"  %2d   %2d   %4d",set_temp,set_humi,set_gz);//打印显示设置数据
			 }
		 }
	} 
}