ADS1243 reading max scale

void init_ADC24(void)
{
	uint8_t i,temp;
	uint8_t regValue[10];
	char *ptr;

	ptr = (char *)&Adc24;

	// Config Pins: DRDY, PDWN
	P2SEL &=  ~b11000000;
	P2DIR |=   b10000000;

	// Turn IC On, PDWN
	P2OUT |=   b10000000;
	for(i=0;i<5;i++) _NOP(); // Delay

	// Reset
	P3OUT &= ~P0;            // CS
	while(!(IFG2&UCB0TXIFG));
	UCB0TXBUF = 0xFE;
	while(UCB0STAT&UCBUSY);
	temp = UCB0RXBUF;
	P3OUT |= P0;             // CS
	while(!(P2IN&BIT6));     // DRDY goes high
	while(P2IN&BIT6);        // DRDY

	for(i=0;i<10;i++) _NOP(); // Delay

	// Calibration
	P3OUT &= ~P0;            // CS
	while(!(IFG2&UCB0TXIFG));
	UCB0TXBUF = 0xF0;
	while(UCB0STAT&UCBUSY);
	temp = UCB0RXBUF;
	P3OUT |= P0;             // CS
	while(!(P2IN&BIT6));     // DRDY goes high
	while(P2IN&BIT6);        // DRDY

	for(i=0;i<10;i++) _NOP(); // Delay

	// Write Config Registers
	regValue[0] = 0x50; //  Write
	regValue[1] = 0x08; // Registers count 8 + 1
	regValue[2] = 0x00; // Setup
	regValue[3] = 0x04; // Mux
	regValue[4] = 0x04; // ACR
	regValue[5] = 0x00; // ODAC
	regValue[6] = 0x00; // DIO
	regValue[7] = 0xFF; // DIR
	regValue[8] = 0x00; // IOCON
	P3OUT &= ~P0; // CS
	for(i=0;i<9;i++)
	{
		while(!(IFG2&UCB0TXIFG));
		UCB0TXBUF = regValue[i];
	}
	while(UCB0STAT&UCBUSY);
	temp = UCB0RXBUF;
	P3OUT |= P0; // CS
//while(!(P2IN&BIT6));     // DRDY goes high
	while(P2IN&BIT6);        // DRDY

	for(i=0;i<10;i++) _NOP(); // Delay

	// Read back all registers
	regValue[0] = 0x10;
	regValue[1] = 0x0F;
	P3OUT &= ~P0;            // CS
	while(!(IFG2&UCB0TXIFG));
	UCB0TXBUF = regValue[0];
	while(!(IFG2&UCB0RXIFG));
	temp = UCB0RXBUF;
	while(!(IFG2&UCB0TXIFG));
	UCB0TXBUF = regValue[1];
	while(!(IFG2&UCB0RXIFG));
	temp = UCB0RXBUF;
	for(i=0;i<5;i++) _NOP();

	for(i=0;i<16;i++)
	{
		while(!(IFG2&UCB0TXIFG));
		UCB0TXBUF = 0x00;
		while(!(IFG2&UCB0RXIFG));
		*ptr++ = UCB0RXBUF;
	}
	while(UCB0STAT&UCBUSY);
	P3OUT |= P0;             // CS

	temp++;
}






void read_ADC24(void)
{
	uint8_t i,j,temp;
	uint32_t value=0;
	uint8_t regValue[5];
//	int32_t convValue=0;

	for(j=0;j<4;j++)
	{
		// Wait for DRDRY to go low to minimizes settling error
		while(!(P2IN&BIT6));     // DRDY goes high
		while(P2IN&BIT6);        // DRDY

		// Change Channel
		regValue[0] = b01010000;
		regValue[1] = 0x00;
		switch(j)
		{
		case 0:
			regValue[2] = 0x04; // Mux CH0	pri-volt (V+)
			break;
		case 1:
			regValue[2] = 0x14; // Mux CH1	sec-volt (VSEC)
			break;
		case 2:
			regValue[2] = 0x24; // Mux CH2	sec-sw1  (VSEC_SW1)
			break;
		case 3:
			regValue[2] = 0x34; // Mux CH3	sec-sw2  (VSEC-SW2)
			break;
		}
		P3OUT &= ~P0; // CS
		for(i=0;i<3;i++)
		{
			while(!(IFG2&UCB0TXIFG));
			UCB0TXBUF = regValue[i];
		}
		while(UCB0STAT&UCBUSY);
		temp = UCB0RXBUF;
		P3OUT |= P0; // CS

		// Wait for data conversion
		while(!(P2IN&BIT6));     // DRDY goes high
		while(P2IN&BIT6);        // DRDY


		// Read Data
		value=0;
		regValue[0] = b00000001;
		P3OUT &= ~P0; // CS
		while(!(IFG2&UCB0TXIFG));
		UCB0TXBUF = regValue[0];
		while(UCB0STAT&UCBUSY);
		temp = UCB0RXBUF;
		for(i=0;i<15;i++) _NOP(); // Delay
		for(i=0;i<3;i++)
		{
			while(!(IFG2&UCB0TXIFG));
			UCB0TXBUF = 0x00;
			while(!(IFG2&UCB0RXIFG));
			temp = UCB0RXBUF;
			value <<= 8;
			value += temp;
		}
		while(UCB0STAT&UCBUSY);
		P3OUT |= P0; // CS

		if(value>0x007FFFFF)
			value += 0xFF000000;

		switch(j)
		{
		case 0:
			Adc24.priCnt = value; // Mux CH0	pri-volt (V+)
//			convValue = ((Adc24.priCnt*149)/100*3831)/100000;
//			Data.priVolt = (int16_t)convValue;  // mV
			Data.priVolt = Adc24.priCnt;
			break;
		case 1:
			Adc24.secCnt = value; // Mux CH1	sec-volt (VSEC)
			Data.secVolt = Adc24.secCnt; // mV
			break;
		case 2:
			Adc24.secSw1Cnt = value; // Mux CH2	sec-sw1  (VSEC_SW1)
			Data.secSw1Volt = Adc24.secSw1Cnt; // mV
			break;
		case 3:
			Adc24.secSw2Cnt = value; // Mux CH3	sec-sw2  (VSEC-SW2)
			Data.secSw2Volt = Adc24.secSw2Cnt; // mV
			break;
		}
		_NOP();
	}
	_NOP();
}