CAPTIVATE-FR2633: Correct Approach to Developing Captivate Application?

Hi All,

Just a quick question to see if I am doing this right. I've hooked up a button and generated the source code and flashed the project. Works fine. Tuning sensors is great. Next I'm switching over to the register_i2c method of communication and I'm essentially doing this:

#if CAPT_INTERFACE == __CAPT_REGISTERI2C_INTERFACE__
void callback(tSensor *s)
{
    // if touch I care about detected, raise IRQ
}
#endif

void main(void)
{
	WDTCTL = WDTPW | WDTHOLD;
	BSP_configureMCU();
	__bis_SR_register(GIE);

	//
	// Register callback
	//
    #if CAPT_INTERFACE == __CAPT_REGISTERI2C_INTERFACE__
	MAP_CAPT_registerCallback(&BTN00, &callback);
    #endif

	//
	// Start the CapTIvate application
	//
	CAPT_appStart();

	//
	// Background Loop
	//
	while(1)
	{
	    CAPT_appHandler();
		CAPT_appSleep();
		
	} // End background loop
} // End main()

Is this the right idea? Do I need to keep the CAPT_appHandler there? Do I need to modify it? Is registering a callback when in the i2c register mode a reasonable approach? I am doing this to enable sensor tuning. When you switch to UART mode this code breaks the integration with the design interface. 

Thanks!