#include "define_all.h"  
#include "gpio.h"

#define RCLP_TRIM (uint8_t)(*(uint32_t *)0X1FFFFB20UL)

//УÑé¼Ä´æÆ÷
unsigned char CheckSysReg( __IO uint32_t *RegAddr, uint32_t Value )
{
	if( *RegAddr != Value ) 
	{
		*RegAddr = Value;
		return 1;
	}
	else
	{
		return 0;
	}
}

//²éѯNVIC¼Ä´æÆ÷¶ÔÓ¦ÏòÁ¿ºÅÖжÏÊÇ·ñ´ò¿ª
//1 ´ò¿ª
//0 ¹Ø±Õ
unsigned char CheckNvicIrqEn( IRQn_Type IRQn )
{
	if( 0 == ( NVIC->ISER[0U] & ((uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)))) )
		return 0;
	else
		return 1;
}



void IWDT_Clr(void)
{
  IWDT ->SERV =0x12345A5A;
}

void IWDT_Init(void)
{
    CMU_PERCLK_SetableEx(IWDTCLK, ENABLE); 
    IWDT->CFGR = 0x06;  //ÖÜÆÚ2S£¬ÐÝÃß2S    
		IWDT_Clr();  				//Çåϵͳ¿´ÃŹ·	
}


//ϵͳʱÖÓÅäÖÃ
//ʹÓÃXTHF×öÖ÷ʱÖÓ,define_all.h ÖÐSYSCLKdefºê¿ØÖÆϵͳʱÖÓƵÂÊ
void Init_SysClk(void)
{
	uint32_t i=0;
	CMU_SYSCLK_InitTypeDef SYSCLK_InitStruct;
		
	CMU_PERCLK_SetableEx(PADCLK, ENABLE);  //PADʱÖÓ£¨GPIO£©Ê¹Äܺ¯Êý
	AnalogIO(GPIOF,GPIO_Pin_1); //¸ù¾ÝÊÖ²á9.4¿É֪ʹÄÜXTHF֮ǰÐ轫PF1ºÍPF2ÉèÖÃΪģÄ⹦ÄÜ
	AnalogIO(GPIOF,GPIO_Pin_2);
	
	 //ʹÄÜXTHF
	CMU_XTHFCR_XTHFEN_Setable(ENABLE); //ʹÄÜXTHF
	CMU_XTHFCR_XTHF_CFG_Set(CMU_XTHFCR_XTHF_CFG_MAX); //Õñµ´Ç¿¶ÈÑ¡Ôñ×îÇ¿
	delay_ms(5);//ÆðÕñÐèҪʱ¼ä
	
//	/*ϵͳʱÖÓ³¬¹ý24MºóÐèÒª´ò¿ªwait*/
//	FLS_RDCR_WAIT_Set(FLS_RDCR_WAIT_2CYCLE);
//	IWDT_Clr();
	CMU_IER_HFDET_IE_Setable(ENABLE); //Æô¶¯XTHFÍ£Õ𱨾¯ÖжÏ
	//ϵͳʱÖÓÖ±½ÓʹÓÃXTHF
	while(!CMU_ISR_HFDETO_Chk())
	{
		if(i>=6400)   //³¬Ê±Éè¼Æ£¬¸ù¾ÝÖ÷ʱÖÓÑ¡Ôñ²»Í¬Öµ£¬Àý³ÌÊÇ8M
		{
			break;         
		}
		i++;			
	}
	
	
	SYSCLK_InitStruct.SYSCLKSEL =  CMU_SYSCLKCR_SYSCLKSEL_XTHF;	//Ñ¡ÔñXTHF×öÖ÷ʱÖÓ£¨Íⲿ¸ßËÙ12Mhz£©
	SYSCLK_InitStruct.AHBPRES =    CMU_SYSCLKCR_AHBPRES_DIV1;		//AHB²»·ÖƵ
	SYSCLK_InitStruct.APBPRES =   CMU_SYSCLKCR_APBPRES_DIV1;		//APB1²»·ÖƵ
	SYSCLK_InitStruct.SLP_ENEXTI = ENABLE;//ÐÝÃßģʽʹÄÜÍⲿÖжϲÉÑù	
	CMU_SysClk_Init(&SYSCLK_InitStruct);
	delay_init(SYSCLOCK_U);
}

void Init_RCHF(void)
{
    CMU_RCHF_InitTypeDef RCHF_InitStruct;

    RCHF_InitStruct.FSEL = SYSCLKdef;//define_all.h ÖÐSYSCLKdefºê¿ØÖÆϵͳʱÖÓƵÂÊ
    RCHF_InitStruct.RCHFEN = ENABLE;//´ò¿ªRCHF

    CMU_RCHF_Init(&RCHF_InitStruct);

    CMU_Init_RCHF_Trim(clkmode);//RCHFÕñµ´Æ÷У׼ֵÔØÈë(оƬ¸´Î»ºó×Ô¶¯ÔØÈë8MµÄУ׼ֵ)£¬Ö»Êǵ÷УRCHF³£Î¾«¶È  
}

void Init_RCLP(void)
{
    CDIF->CR = 0X0A;
    VRTC->RCLPTR = RCLP_TRIM;
    CDIF->CR = 0X05;
}
    
void Init_SysClk_Gen( void )				//ʱÖÓÑ¡ÔñÏà¹Ø
{	  	
    /*ϵͳʱÖÓ³¬¹ý24MºóÐèÒª´ò¿ªwait*/
    if( RCHFCLKCFG > 24 )
    {
        FLS_RDCR_WAIT_Set(FLS_RDCR_WAIT_1CYCLE);
        if( RCHFCLKCFG > 48)  
        {
            FLS_RDCR_WAIT_Set(FLS_RDCR_WAIT_2CYCLE);
        }
    } 
    else 
    {
        FLS_RDCR_WAIT_Set(FLS_RDCR_WAIT_0CYCLE);
    }	

    Init_RCHF();
    Init_RCLP();
    /*ϵͳʱÖÓÅäÖÃ*/
    Init_SysClk();	
}


void CMU_IRQHandler(void)
{
 uint8_t i = 0;
}

void SysWakeUp_ClockCfg(void)
{
	uint32_t i=0;
	CMU_SYSCLK_InitTypeDef SYSCLK_InitStruct;
	 //ʹÄÜXTHF
	CMU_XTHFCR_XTHFEN_Setable(ENABLE); //ʹÄÜXTHF
	CMU_XTHFCR_XTHF_CFG_Set(CMU_XTHFCR_XTHF_CFG_MAX); //Õñµ´Ç¿¶ÈÑ¡Ôñ×îÇ¿
	delay_ms(3);//ÆðÕñÐèҪʱ¼ä
	
//	/*ϵͳʱÖÓ³¬¹ý24MºóÐèÒª´ò¿ªwait*/
//	FLS_RDCR_WAIT_Set(FLS_RDCR_WAIT_2CYCLE);
//	IWDT_Clr();
	CMU_IER_HFDET_IE_Setable(ENABLE); //Æô¶¯XTHFÍ£Õ𱨾¯ÖжÏ
	//ϵͳʱÖÓÖ±½ÓʹÓÃXTHF
	while(!CMU_ISR_HFDETO_Chk())
	{
		if(i>=6400)   //³¬Ê±Éè¼Æ£¬¸ù¾ÝÖ÷ʱÖÓÑ¡Ôñ²»Í¬Öµ£¬Àý³ÌÊÇ8M
		{
			break;         
		}
		i++;			
	}
	
	SYSCLK_InitStruct.SYSCLKSEL =  CMU_SYSCLKCR_SYSCLKSEL_XTHF;	//Ñ¡ÔñXTHF×öÖ÷ʱÖÓ£¨Íⲿ¸ßËÙ12Mhz£©
	SYSCLK_InitStruct.AHBPRES =    CMU_SYSCLKCR_AHBPRES_DIV1;		//AHB²»·ÖƵ
	SYSCLK_InitStruct.APBPRES =   CMU_SYSCLKCR_APBPRES_DIV1;		//APB1²»·ÖƵ
	SYSCLK_InitStruct.SLP_ENEXTI = ENABLE;//ÐÝÃßģʽʹÄÜÍⲿÖжϲÉÑù	
	CMU_SysClk_Init(&SYSCLK_InitStruct);
	delay_init(SYSCLOCK_U);
}