TMS320F28035: C2000 Serial Port Problem Out of Debug Mode

Hi,

I'm using F28035 ISO Controlcard for application that reads data from sensor and sending me back from serial port. I have to set some values via serial port with sending characters. 

I'm programming card from flash. Problem is that when i programmed card and just run it (debug mode without any breakpoints ) it is working like its expected meaning that serial port is receiving and sending data back without any issue. But when i cut the power of controlcard and re-powering it i'm still able to get data from serial port ( i can see from ZoC terminal) but when i send a byte it is not receiving it at all. I dont know what is the problem in here. I'm attaching my serial code init and isr functions. 

My considerations : 

Is there any settings i'm missing about running from flash. Because program is running in debug mode but after unpower and power it , it is not receiving any bytes. Is this about any settings XDS100v2 debug port ?

Hope you can help me.

Here my sci init function : 

	  SciaRegs.SCICCR.all =0x0007;   // 1 stop bit,  No loopback
	                                 // No parity,8 char bits,
	                                 // async mode, idle-line protocol
	  SciaRegs.SCICTL1.all =0x0001;  // enable RX, internal SCICLK,
	                                 // Disable RX ERR, SLEEP, TXWAKE
	  SciaRegs.SCICTL2.bit.TXINTENA = 1;
	  SciaRegs.SCICTL2.bit.RXBKINTENA = 1;
	  SciaRegs.SCIHBAUD = 0x0000; // BAUDRATE Set to
	  SciaRegs.SCILBAUD = 0x000F; // 115200
	  SciaRegs.SCICCR.bit.LOOPBKENA = 0; // Disable Loopback
	  SciaRegs.SCIFFRX.all = 0x0021;
	  SciaRegs.SCIFFCT.all = 0x00;

	  SciaRegs.SCICTL1.all =0x0023;     // Relinquish SCI from Reset
//	  SciaRegs.SCIFFTX.bit.TXFIFOXRESET=1;
	  SciaRegs.SCIFFRX.bit.RXFIFORESET=1;
	  SciaRegs.SCIFFTX.bit.SCIFFENA = 1;
	  SciaRegs.SCIFFRX.bit.RXFFIENA = 1;

	  SciaRegs.SCIFFTX.all = 0xE040;

}

Here is my sci rx isr function : 

__interrupt void sciaRxFifoIsr(void)
{

    while(SciaRegs.SCIFFRX.bit.RXFFST != 0)
    {
        sciRXData = SciaRegs.SCIRXBUF.all;

        SciaRegs.SCITXBUF = sciRXData;

        if(sciRXData == 'C')
        {
        	reCalibrate = 1;
        }
        else if(sciRXData == 'R')
        {
        	reCalibrate = 0;
        }
        else
        {
        	ser_rec = 1;
        	reCalibrate = 10;
        }
    }

    SciaRegs.SCIFFRX.bit.RXFFOVRCLR=1;   // Clear Overflow flag
    SciaRegs.SCIFFRX.bit.RXFFINTCLR=1;   // Clear Interrupt flag

    PieCtrlRegs.PIEACK.all|=0x100;       // Issue PIE ack
}