[new issue] Wire: what's wrong with Wire.onReceive() ?

hi,
i'm trying configure arduino work i2c slave, don't understand i'm doing wrong:
(ide 1.5.6)

code: [select]


#define  slave_address 0x04
#define  msgsize  30
byte     recvarray[msgsize];
byte     sendarray[msgsize];


void setup() {
   serial.begin(115200);  
  
   // wire (i2c)
   wire.begin(slave_address);  //  start arduino i2c slave, addr=0x04 (7-bit coded)
   wire.onreceive(receivedata);
   wire.onrequest(senddata);

}


void receivedata() {
    int32_t i;
    byte val;
      
    while(wire.available()<msgsize) ; // wait 30  bytes complete
    i=0;  // init counter var
    while(wire.available()>0)    // read bytes
    {
      val=wire.read();
      recvarray[i++]=val;
    }

}


// callback sending data
void senddata()
{
  wire.write(sendarray, msgsize); // send 30 bytes master..
}




i compiler error msg:

quote

i2cev30001.ino: in function 'void setup()':
i2cev30001:368: error: invalid conversion 'void (*)()' 'void (*)(int)' [-fpermissive]
in file included i2cev30001.ino:2:0:
c:\programme\arduino\hardware\arduino\avr\libraries\wire/wire.h:67:10: error:   initializing argument 1 of 'void twowire::onreceive(void (*)(int))' [-fpermissive]
     void onreceive( void (*)(int) );
          ^
invalid conversion 'void (*)()' 'void (*)(int)' [-fpermissive]

edit:
resolved.

corrected function call


void receivedata(int16_t  bytecount) // although bytecount not used far

now code compiles fine on mega,
but same code due again error messages:

quote

arduino: 1.6.5 (windows xp), platine: "arduino due (programming port)"

i2cev30001.ino: in function 'void setup()':
i2cev30001:370: error: invalid conversion 'void (*)(int16_t) {aka void (*)(short int)}' 'void (*)(int)' [-fpermissive]
in file included i2cev30001.ino:2:0:
c:\dokumente und einstellungen\user1\anwendungsdaten\arduino15\packages\arduino\hardware\sam\1.6.4\libraries\wire/wire.h:53:7: error:   initializing argument 1 of 'void twowire::onreceive(void (*)(int))' [-fpermissive]
  void onreceive(void(*)(int));
       ^
invalid conversion 'void (*)(int16_t) {aka void (*)(short int)}' 'void (*)(int)' [-fpermissive]

edit: hmmmhm, changing 1nt16_t int seemed trick.....   

Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > [new issue] Wire: what's wrong with Wire.onReceive() ?

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