chose/extra/Fraise/fruit/examples/exampleFruit/main.c

/*********************************************************************
 *               Test Fraise on Versa1.0 
 *********************************************************************/

#define BOARD Versa1

#include <fruit.h>

unsigned char period = 200; // number of 5 ms time slices between prints of "Hello"
unsigned char t = 0, t2 = 0;
t_delay mainDelay;

void setup(void) {		
//----------- Setup ----------------
	fruitInit();
			
	pinModeDigitalOut(LED); 	// set the LED pin mode to digital out
	digitalClear(LED);		// clear the LED
	delayStart(mainDelay, 5000); 	// init the mainDelay to 5 ms
	
	pinModeDigitalIn(K1);
}

void loop() {
// ---------- Main loop ------------
	fraiseService();	// listen to Fraise events

	if(delayFinished(mainDelay)) // when mainDelay triggers :
	{
		delayStart(mainDelay, 5000); 	// re-init mainDelay
		t = t + 1;			// increment period counter	
		if(t >= period){		// if counter overflows :
			t = 0;				 // clear counter
			t2 = t2 + 1;			 // increment aux counter 
			printf("CHello! t2= %d K1= %d\n", t2, digitalRead(K1));// print Hello + aux counter value
		}
	}
}

// Receiving

void fraiseReceiveChar() // receive text
{
	unsigned char c;
	
	c=fraiseGetChar();
	if(c=='L'){		//switch LED on/off 
		c=fraiseGetChar();
		digitalWrite(LED, c!='0');		
	}
	else if(c=='E') { 	// echo text (send it back to host)
		printf("C");
		c = fraiseGetLen(); 			// get length of current packet
		while(c--) printf("%c",fraiseGetChar());// send each received byte
		putchar('\n');				// end of line
	}	
}

void fraiseReceive() // receive raw bytes
{
	unsigned char c;
	
	c=fraiseGetChar();	// get the first byte

	switch(c) {
		PARAM_CHAR(1,period); break; 	// if the first byte is 1 then set period 
						//to the value of the next byte
	}
}