Switch module

Automates the use of digital input pins. More...

Automates the use of digital input pins.

Example :

/*********************************************************************
 *               switch example for Versa1.0
 *  Switch capture on connectors K1, K2, K3 and K4. 
 *********************************************************************/
 
#define BOARD Versa1
 
#include <fruit.h>
#include <switch.h>
 
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
 
//----------- Switch setup ----------------
    switchInit();       // init switch module
    switchSelect(0,K1); // assign connector K1 to switch channel 0
    switchSelect(1,K2);
    switchSelect(2,K3);
    switchSelect(3,K4);
}
 
void loop() {
// ---------- Main loop ------------
    fraiseService();    // listen to Fraise events
    switchService();    // switch management routine
 
    if(delayFinished(mainDelay)) // when mainDelay triggers :
    {
        delayStart(mainDelay, 5000);    // reinit the mainDelay to 5 ms
        switchSend();           // send switch channels that changed
    }
}
 
// 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
    }   
}
 

Initialization functions
void	switchInit ()
	Call it once in setup()
#define	switchSelect(num, conn)
	Select a pin for a switch channel. Assign the pin to the switch channel. More...

Loop functions
void	switchService (void)
	Call in loop().
char	switchSend (void)
	Call at the maximum rate you want to report switches. More...

Utilities
void	switchDeselect (unsigned char channel)
	Deselect a channel.
char	switchGet (unsigned char chan)
	Get the state of a channel. More...

Function Documentation

switchSend()

char switchSend

(

void

)

Call at the maximum rate you want to report switches.

Returns

Number of channels sent.

switchGet()

char switchGet

(

unsigned char

chan

)

Get the state of a channel.

Parameters

chan	Channel to read.

Returns

State of the channel.

Macro Definition Documentation

switchSelect

#define switchSelect	(		num,
			conn
	)

Select a pin for a switch channel. Assign the pin to the switch channel.

Parameters

num	Number of the channel (first channel = 0).
conn	Symbol of the pin (example : K1 for connector 1).