SIMPLELINK-MSP432-SDK: Error transmitting I2C data after receiving using MSP432P401R

Part Number: SIMPLELINK-MSP432-SDK

Dear all,

We are creating a new product using MSP432P401R with I2C connection.

I created the project with CCS and check the sample code from TI.

It can transmit I2C data successfully but error after receive I2C data.

The figures of I2C signal are shown below.

 
Fig.1 Transmit successfully

Fig.2 Receive successfully and the data is same as the data I saved

Fig.3 Transmit fail after receiving

The codes are shown below.

Each operation,I'll call I2C_Set() for assigning slave address then call I2C_Receive() or I2C_Transmit()

void I2C_Set(unsigned char SlaveAddress)
{
	P1SEL0 |= (SDA + SCL);						// I2C pins
	NVIC->ISER[0] = 1 << ((EUSCIB0_IRQn) & 31);	// Enable eUSCIB0 interrupt in NVIC module
	EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_SWRST;		// put eUSCI_B in reset state
	EUSCI_B0->CTLW0 = EUSCI_B_CTLW0_SWRST |		// Remain eUSCI_B in reset state
			EUSCI_B_CTLW0_MODE_3 |				// I2C mode
			EUSCI_B_CTLW0_MST |					// I2C master mode
			EUSCI_B_CTLW0_SYNC |				// Sync mode
			EUSCI_B_CTLW0_SSEL__SMCLK;			// SMCLK
	EUSCI_B0->BRW = 480;						// baudrate = SMCLK / 480 = 1K
	EUSCI_B0->CTLW0 &= ~EUSCI_B_CTLW0_SWRST;	// clear reset register
	EUSCI_B0->I2CSA = SlaveAddress;				// configure slave address
}

void I2C_Transmit(unsigned char Address, unsigned char Data)
{
	I2C_Data[0]=Address;
	I2C_Data[1]=Data;
	I2C_Length=2;
	I2C_State=0;
	EUSCI_B0->IE |= EUSCI_B_IE_TXIE0 |			// Enable transmit interrupt
			EUSCI_B_IE_NACKIE;					// Enable NACK interrupt
	__enable_irq();								// Enable global interrupt
	while (EUSCI_B0->CTLW0 & EUSCI_B_CTLW0_TXSTP);	// Ensure stop condition got sent
	EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_TR | 			// I2C TX
			EUSCI_B_CTLW0_TXSTT;        			// Start condition
}

void I2C_Receive(unsigned char Address, unsigned short Number)
{
	//write address to slave
	I2C_Data[0]=Address;
	I2C_Length=1;
	I2C_State=0;
	EUSCI_B0->IE |= EUSCI_B_IE_TXIE0 |				// Enable transmit interrupt
			EUSCI_B_IE_NACKIE;						// Enable NACK interrupt
	__enable_irq();									// Enable global interrupt
	while (EUSCI_B0->CTLW0 & EUSCI_B_CTLW0_TXSTP);	// Ensure stop condition got sent
	EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_TR | 			// I2C TX
			EUSCI_B_CTLW0_TXSTT;        			// Start condition
	Delay(1);

	//read data from slave address for number data
	EUSCI_B0->CTLW1 |= EUSCI_B_CTLW1_ASTP_2;		// Automatic stop generated
	EUSCI_B0->TBCNT = Number;						// number of bytes to be received
	EUSCI_B0->IE |= EUSCI_A_IE_RXIE |       		// Enable receive interrupt
			EUSCI_B_IE_NACKIE |             		// Enable NACK interrupt
			EUSCI_B_IE_BCNTIE;              		// Enable byte counter interrupt
	__enable_irq();									// Enable global interrupt
	while (EUSCI_B0->CTLW0 & EUSCI_B_CTLW0_TXSTP);	// Ensure stop condition got sent
	EUSCI_B0->CTLW0 &= ~EUSCI_B_CTLW0_TR;			// I2C RX
	EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_TXSTT;			// I2C start condition
}

void EUSCIB0_IRQHandler(void)
{
	if (EUSCI_B0->IFG & EUSCI_B_IFG_NACKIFG)
	{
		EUSCI_B0->IFG &= ~EUSCI_B_IFG_NACKIFG;
		EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_TXSTT;// I2C start condition
		//UCB0CTL1 |= EUSCI_B_CTLW0_TXSTT;
	}

	if (EUSCI_B0->IFG & EUSCI_B_IFG_TXIFG0)
	{
		EUSCI_B0->IFG &= ~EUSCI_B_IFG_TXIFG0;

		if(I2C_Length)
		{
			EUSCI_B0->TXBUF = I2C_Data[I2C_State++];	// Load TX buffer
			I2C_Length--;
		}
		else
		{
			EUSCI_B0->CTLW0 |= EUSCI_B_CTLW0_TXSTP;			// I2C stop condition
			EUSCI_B0->IFG &= ~EUSCI_B_IFG_TXIFG;			// Clear USCI_B0 TX int flag
		}
    }
	else if(EUSCI_B0->IFG & EUSCI_B_IFG_RXIFG0)
	{
		EUSCI_B0->IFG &= ~ EUSCI_B_IFG_RXIFG0;

		I2C_Data[I2C_State++]=EUSCI_B0->RXBUF;
	}

    if (EUSCI_B0->IFG & EUSCI_B_IFG_BCNTIFG)
    {
        EUSCI_B0->IFG &= ~ EUSCI_B_IFG_BCNTIFG;
    }
}

How can I solve the trouble?

BR,

Norton