#ifndef _ADS1220_H_
#define _ADS1220_H_

#include "stm32l4xx_hal.h"
#include "spi.h"
#include "main.h"
#include "timer.h"

#define ADS1220_RESET 		0X06
#define ADS1220_START 		0X08
#define ADS1220_POWERDOWN 	0X02
#define ADS1220_RDATA 		0X10
#define ADS1220_RREG 		0X20
#define ADS1220_WREG 		0X40

#define AIN0_AIN1 	0x01
#define AIN0_AIN2 	0x11
#define AIN0_AIN3 	0x21
#define AIN1_AIN2 	0x31
#define AIN1_AIN3 	0x41
#define AIN2_AIN3 	0x51
#define AIN1_AIN0 	0x61
#define AIN3_AIN2 	0x71
#define AIN0_AVSS 	0x81
#define AIN1_AVSS 	0x91
#define AIN2_AVSS 	0xA1
#define AIN3_AVSS 	0xB1

#define ADS1220_CS_LOW()  	HAL_GPIO_WritePin(ADS1220_CS_GPIO_Port,ADS1220_CS_Pin,GPIO_PIN_RESET)
#define ADS1220_CS_HIGH()  	HAL_GPIO_WritePin(ADS1220_CS_GPIO_Port,ADS1220_CS_Pin,GPIO_PIN_SET)

#define ADS1220_DRDY 		HAL_GPIO_ReadPin(ADS1220_DR_GPIO_Port, ADS1220_DR_Pin)

typedef struct
{
	long vol[1024];
	long loca[1024];
	int cnt;
}Point_Data;  

extern Point_Data point_data;

//extern uint32_t V_data;		//ÅÅÐòÖмä±äÁ¿
extern long ads1220_data;
extern int test_flag;
extern long maxv;
extern long minv;
extern long maxv_loca;
extern long minv_loca;

void ads1220_init(void);
void ads1220_write(uint8_t dat);
unsigned char ads1220_receivebyte(void);
void ads1220_writeregister(int StartAddress, int NumRegs, uint8_t * pData);
long ads1220_readdata(void);
void get_data(void);



#endif /* ADS1220_H_ */