static int Dev_ads1120_Config(void)
{
	struct ADS1120_REGS regs;
	
	memset(&regs, 0, sizeof(regs));
	
	/* 系统复位 */
	Dev_ads1120_Reset();

	regs.R0.PGA_BYPASS = 0x0;	//0: PGA enabled (fault) 			1: PGA disenabled and bypassed
	regs.R0.GAIN = 0x0;			//0: Gain = 1 (default)
	regs.R0.MUX = 0x0;			//0: AINP = AIN0, AINN = AIN1 (default)
	
	regs.R1.DR = 0x0;			//0: 20 SPS
	regs.R1.MODE = 0x0;		//0: Normal Mode (256kHz default)
	regs.R1.CM = 0x1;			//0: Signal-shot mode (default) 	1: Continuous conversion mode
	regs.R1.TS = 0x0;			//0: Disable temperature sensor		1: Enable temperature sensor
	regs.R1.BCS = 0x1;			//0: Current sources off (derfault)	1: Current sources open
	
	regs.R2.VREF = 0x1;			//1: External reference selected using dedicated REFP0 and REFN0 inputs
	regs.R2.RES_5060 = 0x0;
	regs.R2.PSW = 0x0;
	regs.R2.IDAC = 2;			//0: OFF(default)
	
	regs.R3.I1MUX = 0X4;		//0: IDAC1 disabled (default)
	regs.R3.I2MUX = 0x0;		//0: IDAC2 disabled (default)
	regs.R3.DRDYM = 0x0;
	regs.R3.RES_0 = 0x0;
	
	Dev_ads1120_WriteReg(ADDR_REG_0, (uint8_t *)&regs, 4);
	memset(&regs, 0, sizeof(regs));
	Dev_ads1120_ReadReg(ADDR_REG_0, (uint8_t *)&regs, 4);
	return 0;
}

static int Dev_ads1120_WriteReg(uint8_t addr, uint8_t *buf, uint8_t lens)
{
	uint8_t cmd[5] = {0};
	
	cmd[0] = CMD_WREG | (addr << 2) | (lens - 1);
	memcpy(cmd + 1, buf, lens);
	
	Spi_SetCS(M0P_SPI0, FALSE);
	Spi_SendBuf(M0P_SPI0, cmd, lens + 1);
	delay1us(1);
	Spi_SetCS(M0P_SPI0, TRUE);
	
	return 0;
}
static int Dev_ads1120_ReadReg(uint8_t addr, uint8_t *buf, uint8_t lens)
{
	uint8_t cmd[4] = {0};
	
	cmd[0] = CMD_RREG | (addr << 2) | (lens - 1);

	Spi_SetCS(M0P_SPI0, FALSE);
	Spi_SendData(M0P_SPI0, cmd[0]);
	Spi_ReceiveBuf(M0P_SPI0, buf, lens);
	delay1us(1);
	Spi_SetCS(M0P_SPI0, TRUE);
	
	return 0;
}

static int Dev_ads1120_Reset(void)
{
	uint8_t cmd[2] = {CMD_RESET};

	Spi_SetCS(M0P_SPI0, FALSE);
	Spi_SendBuf(M0P_SPI0, cmd, 1);
	Spi_SetCS(M0P_SPI0, TRUE);
	delay1us(100);
	return 0;
}