#ifndef AD7794_H
#define AD7794_H

#include "STM32Lib\\stm32f10x.h"
#include "main.h"

#define ADS1220_VALUE_MUL 125
#define ADS1220_VALUE_DIV 16384

//电压V=(N*ads1220_VALUE_MUL)/ads1220_VALUE_DIV  单位uV,基准电压1.17V

#define ADS1220_COMMAND_RESET				0x06
#define ADS1220_COMMAND_START				0x08
#define ADS1220_COMMAND_POWERDOWN		0x02
#define ADS1220_COMMAND_RDATA				0x10
#define ADS1220_COMMAND_RREG				0x20
#define ADS1220_COMMAND_WREG				0x40

//----------------------
//Function declarations
//----------------------

//SPI读写函数
u8 ads1220_SendByte(u8 byte);

//芯片复位初始化
void ads1220_Initialization(void);

//读取转换结果
u32 ads1220_read_data (void);

#endif