/*--------------------------------------------------------------------------------------
*  @file     ADS1110Setup.c
*  @author   ZhangJing
*  @version  base on stm32f0x   
*  @date     2015.09.11
*  @brief    ADS1110驱动
---------------------------------------------------------------------------------------*/
#include "stm32f10x_gpio.h"
#include "ADS1110Setup.h"
#include "IIC2Setup.h"
#include "ADS1110ASetup.h"

/*************************************************************************************
*  Function:	ADS1110Config						                                                           
*  Object:		配置ADS1110
*  输入:			无
*  输出:			无                                    
*  备注:			1、uint8_t tempState = 0;返回状态             
**************************************************************************************/
void ADS1110AConfig(void)
{
	uint8_t tempState = 0;
	TWI2_START();
	tempState = TWI2_SendByte(ADS1110_WR_ADDRESS);
	if( 1 != tempState )
  {	    

    //发送终止IIC标志
    TWI2_STOP(); 

    return;
  }
	TWI2_SendNACK();
	tempState = TWI2_SendByte(ADS1110_CONFIG_REG);
	if( 1 != tempState )
  {	    

    //发送终止IIC标志
    TWI2_STOP(); 

    return;
  }
	TWI2_SendNACK();
	TWI2_STOP();
}

/*************************************************************************************
*  Function:	RD_ADS						                                                           
*  Object:		读ADS1110数据
*  输入:			无
*  输出:			转换后数据                                   
*  备注:			1、u16 W_B1byte_high, W_B1byte_low, W_B1_word;读取数据高低字节并由W_B1_word变量做组合计算             
**************************************************************************************/
uint16_t RD2_ADS(void)
{
	// u8 temp;
	u16 W_B1byte_high, W_B1byte_low, W_B1_word;
	TWI2_START();
	TWI2_SendByte(ADS1110_RD_ADDRESS);//0x90
	TWI2_SendNACK();
	//
	// if(!temp)
	// {
	W_B1byte_high /*= TMR_H*/ = TWI2_ReceiveByte();
	TWI2_SendACK();
	W_B1byte_low /*= TMR_L*/ = TWI2_ReceiveByte();
	TWI2_SendACK();
	W_B1_word = TWI2_ReceiveByte();
	TWI2_STOP();
	W_B1_word = (W_B1byte_high << 8)+ W_B1byte_low;
	// if (W_B1_word > 0x7fff)
	// W_B1_word = 0;
	return W_B1_word;
	// }
	// else
	// return 0x0000;
}