#include "comp.h"

#include "gpio.h"
#include "uart.h"


void COMP_IRQHandler(void)
{
	//×¢Òâ¶ÔÊäÈëÐźŵÄÂ˲¨£¬·ñÔòÈÝÒ×Îó´¥·¢ÖжÏ
	if(SET == COMP_ISR_CMP1IF_Chk())
	{
		COMP_ISR_CMP1IF_Clr();	                                //Çå³ýCOMP1ÖжϱêÖ¾
		if(SET == COMP_CR1_CMP1OR_Chk())	                    //±È½ÏÆ÷1 V+µçѹ¸ßÓÚV-
		{
			printf("1\r\n");
		}
		else								                    //±È½ÏÆ÷1 V+µçѹµÍÓÚV-
		{
			printf("2\r\n");
		}
	}
}

void Comp1_IO_PF6_Init(void)
{
	CMU_PERCLK_SetableEx(PADCLK, ENABLE);               //PADʱÖÓʹÄÜ
	//COMP1
	//Õý¶Ë	
	AnalogIO( LIT_PWR_UNDER_PORT, LIT_PWR_UNDER_PIN );	//ANAC_COMP1CR_V1PSEL_PF6
	GPIOx_ANEN_Setable(LIT_PWR_UNDER_PORT, LIT_PWR_UNDER_PIN, ENABLE);
}


void Comp1_Init(void)
{
	CMU_PERCLK_SetableEx(ANACCLK, ENABLE);              //Ä£Äâµç·×ÜÏßʱÖÓʹÄÜ
	CMU_PERCLK_SetableEx(COMPCLK, ENABLE);              //COMP×ÜÏßʱÖÓʹÄÜ
	
	//buffer½öÔÚNÊäÈëvref/2ʱÐèÒª´ò¿ª
	//´ò¿ªºó»áÔö¼Ó0.6uAµÄ¹¦ºÄ
	//±È½ÏÆ÷1±È½ÏÆ÷2¹«ÓÃÒ»¸öbuffer£¨×îÎÈÍ׵ķ½·¨ÊÇ´ò¿ª buffer£©
	//´ò¿ªbuffer
	COMP_ICR_BUFBYP_Setable(DISABLE);//¹Ø±Õbufferbypass
	COMP_ICR_BUF_OFF_Setable(DISABLE);//´ò¿ªbuffer
	
	COMP_PCR_HSCMP1_EN_Set(COMP_PCR_HSCMP1_EN_SLOW);	// µÍ¹¦ºÄģʽ 
	COMP_PCR_HSCMPBUF_EN_Set(COMP_PCR_HSCMPBUF_EN_SLOW);// µÍ¹¦ºÄģʽ 
	COMP_CR1_WINMODE_Setable(DISABLE);                  //½ûÖ¹´°¿Úģʽ 
	COMP_CR1_POLAR_Set(COMP_CR1_POLAR_POS);             //ÕýÏòÊä³ö
	COMP_CR1_DFEN_Setable(DISABLE);                     //½ûÖ¹Êä³öÂ˲¨
	
	COMP_CR1_V1PSEL_Set(COMP_CR1_V1PSEL_COMP1_INP1);    //PF6
	COMP_CR1_V1NSEL_Set(COMP_CR1_V1NSEL_VREF);
	//±È½ÏÆ÷ÖжÏÔ´Ñ¡ÔñÉÏÉýÑغÍϽµÑØ
	COMP_ICR_CMP1SEL_Set(COMP_ICR_CMP1SEL_BOTH);
	
	COMP_ICR_CMP1IE_Setable(ENABLE);                            //´ò¿ªÖжÏ
	
	//NVICÖжÏÅäÖÃ
	NVIC_DisableIRQ(COMP_IRQn);
	NVIC_SetPriority(COMP_IRQn,2);                              //ÖжÏÓÅÏȼ¶ÅäÖÃ
	NVIC_EnableIRQ(COMP_IRQn);
	
	COMP_CR1_CMP1EN_Setable(ENABLE);                    //Æô¶¯±È½ÏÆ÷1
}