Not rising stop condition interrupt or flag also not coming in I2C of TMS320C6748?

Hai,

Startware based on i am modified code and started but it is not coming to I2C_ISR routine function.Below code i am using

int main(void)
{
volatile uint16_t i=0,j=0,k;
EVMC6748_init();
// Initialization of Modules
PINMUX_init();
unsigned int num = 0;

ISTP = (unsigned int)intcVectorTable;
uint16_t *src3 = (uint16_t*)0x01800104;
*src3 = 0x0000024; //selecting interrupt 4 in intmux reg for IIC0ISR=36(0x24)
SETBIT(CSR ,0x14000010); //Disable Global Interrupt
SETBIT(IER,0x00000013) ; // enable INT4 as CPU interrupt(4-INT4,1-NMI,0-RST)
SETBIT(CSR ,0x14000003); //Global Interrupt enable
count = 0;
dataToSlave[0] = 0x06;
dataToSlave[1] = 0x3f;
i2c_init();
I2caRegs.ICMDR.bit.STP = 1;

while(flag1);

dataToSlave[0] = 0x02;
for (num = 100; num != 0; num--)
{
count = 0;
dataToSlave[1] = 0x00;

SetupI2CTransmit();

BlinkDelay();

count = 0;
dataToSlave[1] = 0xC0;/*data to OFF LED*/

SetupI2CTransmit();
BlinkDelay();
}

while(1);
}

void i2c_init(void)
{
I2caRegs.ICMDR.all = 0x0000;

I2caRegs.ICPSC.all = 0X02; // Prescaler - need 7-12 Mhz on module clk (90/9 = 10MHz)
I2caRegs.ICCLKL = 0x05; // NOTE: must be non zero
I2caRegs.ICCLKH = 0x05; // NOTE: must be non zero

I2caRegs.ICSAR = 0x42; // Slave address
I2caRegs.ICIMR.all = 0x34; // Enable SCD & ARDY interrupts
I2caRegs.ICCNT = 0x01;
// I2caRegs.ICMDR.bit.STP = 1;
I2caRegs.ICMDR.all = 0x6E20; // Take I2C ICXRDY

}
static void SetupI2CTransmit(void)
{
I2caRegs.ICCNT = 0x02;
I2caRegs.ICMDR.all = 0x6620; // Take I2C out of reset
I2caRegs.ICIMR.all = 0x34; // Enable SCD & ARDY interrupts
 I2caRegs.ICMDR.bit.STT = 1; // Take I2C out of reset
}

interrupt void i2c_isr(void) // I2C-0
{
uint16_t IntSource;
// Read interrupt source
IntSource = I2caRegs.ICIVR.all;
// Interrupt source = stop condition detected
if (IntSource == 0x00000005u)
{
/* Put data to data transmit register of i2c */
I2caRegs.ICDXR = dataToSlave[count++];
}

if (IntSource == I2C_SCD_ISRC)
{
/* Disable transmit data ready register */
I2caRegs.ICIMR.bit.ICXRDY = 0;
flag1 = 0;
}
if (IntSource == 0x00000003u)
{
/* Disable transmit data ready register */
if(I2caRegs.ICSTR.bit.NACK == 1)
{
UART_txString(UART1,"NACK");
I2caRegs.ICMDR.bit.STP = 1;
I2caRegs.ICSTR.all = I2C_CLR_NACK_BIT;
}
else if(CurrentMsgPtr->MsgStatus == I2C_MSGSTAT_SEND_NOSTOP_BUSY)
{
// send_string("Read1");
CurrentMsgPtr->MsgStatus = I2C_MSGSTAT_RESTART;
}
}
}