I2C without interrupts, simplest Tx

Hi Folks

(F28027 ControlSTICK)

I am trying to implement a very simple I2C transmit via I2C, currently with the following code execution hangs forever waiting for I2CSTR.bit.XSMT to become 0.

The spec says I2CSTR.bit.XSMT should become 0 after the byte in the I2CDXR has been sent, is this correct usage to pass data to I2CDXR and wait for I2CSTR.bit.XSMT after each byte in a 2-byte message??

Thanks

void main(void)
{
	DeviceInit();				// Device Life support & GPIO mux settings 
	i2caInit();				// I2C settings
	data1 = foo;
	data2 = bar;
	i2cTx(data1);
	i2cTx(data2);
}

void i2cTx(Uint16 txData) 
{
	I2caRegs.I2CMDR.bit.TRX = 1;		// Turn on Tx mode
	I2caRegs.I2CDXR = txData;		// Copy data to Tx buffer
	while (I2caRegs.I2CSTR.bit.XSMT != 0) {}// Wait until Tx buffer is empty again
}

void i2caInit(void)
{
	I2caRegs.I2CMDR.all = 0x6E00;		// Reset on, master transmitter S-A(7)&W-D(8)-P
	I2caRegs.I2CIER.all = 0;		// Disable all I2C interrupt sources
	I2caRegs.I2CPSC.all = 5;		// Prescalar - Module clock must be 7-12 MHz
						// Module clk = SYSCLKOUT/(5+1) = 10MHz
	I2caRegs.I2CCLKL = 0x0037;		// SCL runs at 83.333 kHz 50% duty
	I2caRegs.I2CCLKH = 0x0037;		// SCL runs at 83.333 kHz 50% duty
	I2caRegs.I2CSAR = 0x0017;		// LTC6904 address is 0000010111
	I2caRegs.I2COAR = 0x007F;		// This device address is 1111111
	I2caRegs.I2CCNT = 2;			// LTC6904 sends 2 bytes of info after the address + WR byte
	I2caRegs.I2CFFTX.all = 0;		// Disable Tx FIFO
	I2caRegs.I2CFFRX.all = 0;		// Disable Rx FIFO
	I2caRegs.I2CMDR.bit.IRS = 1;		// Reliquish I2C from reset
}