SPI code C with pic16f887

hello
i want to send a data (a simple value ) from pic 16f887 to another pic 16f887
this code doesn't give me any result when i do the verification with ISIS
after calling the spi write function the value of the data displaying in the LEDs it is not the value wanted and the result in the slave pic is not the data that i have send it :-x
would you please help me
thnx

there is the code master and slave and the isis verification :

It will be helpful if you post the master and slave project files and the Proteus file in a zip file.

Master


slave

https://www.edaboard.com/threads/261292/

jayanth.devarayanadurga said:

It will be helpful if you post the master and slave project files and the Proteus file in a zip file.

Click to expand...

you're right :wink: there is the projects :

Where is the Proteus file. Justin has showed that you have to use isr for slave.

Jestin_cubetech said:

Master

Code:

////////////////////////////////////////////
unsigned int spi_write_hw(unsigned char val)
 {
    unsigned char ctrl;
    SS=0;
    SSPBUF=val;    while(!SSPIF);
    while(!BF);    ctrl=SSPBUF;
    SS=1;
    return ctrl; 
 }

slave

Code:

//////////////////////////////////
  void interrupt isr()
{
  if(SSPIF)
 {
   SSPIF=0;
   rcv=SSPBUF;  
   SSPBUF=snd;
 }
}

https://www.edaboard.com/threads/261292/

Click to expand...

finally it works :-D thank you so much Jestin_cubetech