[PIC] Spi commiication use in two PIC18f452

[AmmarAkhlaq]

I am try to communicate b/w two pic18f452:
I am sending package of data from master. slave should receive it properly. and send back data according to the received one:
here problem is I am getting data for some value like when I call the function:
sent_data(10,20,30);
I received it correctly but when I sent:
sent_data(150,180,180);
I am not receiving it communication is not establishing.
I need to received data correctly all the time.
PLZZZZZ help me out I extreme need plzzzz
plzz tell me what iam doing wrong I am using MicroC for coding

here is my master:

unsigned char theta1,theta2,theta3,Count2,Count3,datain,intiCom,ready,Thetax=0,Thetay,Thetaz,x,y,z1,reset;
unsigned char Write(char dataout);
void mapInput();
void SysInit();
void sent_data(unsigned char Theta1 ,unsigned char Theta2 , unsigned char Theta3 );
void main(){
      SysInit();
      intiCom=0;
      PORTB=0xFF;
      delay_ms(1000);
      PORTB=0x00;
      intiCom=Write(0x0F); // inititalize the communication:    1
      //Send 0x0F if reviced is F0 the Communication line is stablish
      PORTB = intiCom;
      Delay_ms(500);
      if(intiCom==0xF0)
      {
         while(1)
         {
             sent_data(150,180,180);
         }
      }


}
unsigned char Write(unsigned char dataout)
{
      PORTD = dataout;
      PORTC.B2=0;          // SS select low  slave is selected  port C pin 2
      delay_ms(10);        // wait
      SPI1_Write(dataout); // transmit the dataout
      //while(SSPSTAT.BF);   // wait till end of data transmission
      delay_ms(50);        // wait.
      PORTC.B2=1;
      return  SSPBUF;
}
void SysInit()
{
     TRISA=0xFF; // configure Port A as input
     ADCON1=0x06;// disable ADC and make all the pins of Port A as digital input.
     TRISD=0x00; // configure Port D as output
     PORTD=0x00; // Clear all pin of Port D
     TRISB=0x00; // configure Port B as output
     PORTB=0x00; // Clear all pin of Port B
     TRISC.B2=0; // Output for Slave select
     TRISC.B3=0; // SCK output
     TRISC.B4=1; // SDI input
     TRISC.B5=0; // SDO output
     PORTC.B2=1; // SS select high no slave is select
     //Set SPI1 module to master mode, clock = Fosc/4, data sampled at the middle of interval,
     //clock idle state low and data transmitted at low to high edge:
     SPI1_Init_Advanced(_SPI_MASTER_OSC_DIV4, _SPI_DATA_SAMPLE_MIDDLE, _SPI_CLK_IDLE_LOW, _SPI_LOW_2_HIGH); // Setup the spi
}

void sent_data(unsigned char Theta1 ,unsigned char Theta2 , unsigned char Theta3 )
{

          ready=Write(0x10);            //2
          Delay_ms(50);
          if(ready==0x70)
          {
              Thetax=Write(Theta1);     //3
             // PORTB=Thetax;
              Delay_ms(50);
          }
          if(Thetax==0x30)
          {
                x=Write(0x05);          //4
                //PORTB=x;
                Delay_ms(50);
          }
          if(x==0x40)
          {
            Thetay=Write(Theta2);       //5
            //PORTB=Thetay;
            Delay_ms(50);
          }
          if(Thetay==0x50)
          {
             y=Write(0x06);             //6
             //PORTB=y;
             Delay_ms(50);
          }
          if(y==0x60)
         {
            Thetaz=Write(Theta3);       //7
            //PORTB=Thetaz;
            Delay_ms(50);
         }
         if(Thetaz==0x80)
         {
                z1=Write(0x08);         //8
                //PORTB=z1;
                Delay_ms(50);
         }
         if((z1==0x90)&&(y==0x60)&&(x==0x40))
         {
             reset= Write(0x09);       //9
             z1=0;
             y=0;
             x=0;
             Thetaz=0;
             Thetay=0;
             Thetax=0;
             ready=0;
             PORTB=Theta3;
              
         }

}

here is salve code:

unsigned char Received(unsigned short dataout);
unsigned short datain,dataout;
unsigned char intiCom=0,ready=0,Thetax=0,x,Thetay,y,Thetaz,z1,update;
void SysInit();
void InitTimer1();
void Interrupt();
void mydelay_10us(long int a);
unsigned long int total,high1,high2,high3,low,theta1,Required_delay1=0,theta2;
unsigned long int Required_delay2=0,theta3,Required_delay3=0;
void main() {
  //InitTimer1();
  SysInit();
  intiCom=0;
  intiCom=Received(0xF0);                   //1
  // inititalize the communication:
  // Send 0x0F if reviced is F0 the Communication line is stablish

  while(1)
  {
      ready=Received(0x70);                //2  Ready for communication
      //PORTB=ready;
      if(ready==0x10)
      {
          Thetax= Received(0x30);          //3 recive theta 1 is ready
          //PORTB=Thetax;
          delay_ms(30);
          x = Received(0x40);              //4 conform that Theta 1 has been recived
      }
      if(x==0x05)
       {
           Thetay=Received(0x50);          //5 recive theta2 if reception of theta 1 is conformed
           // PORTB=Thetay;
           delay_ms(30);
           y= Received(0x60);              //6  conform that Theta 2 has been recived
       }
      if(y==0x06)
      {
            Thetaz=Received(0x80);         //7  recive theta3 if reception of theta 2 is conformed
            //PORTB=Thetaz;
            delay_ms(30);
            z1 = Received(0x90);           // 8  conform that Theta 3 has been recived
      }
      if((z1==0x08)&&(y==0x06)&&(x==0x05)) // after conformation of all the theta 1 2 3
        {
            update=Received(0xA0);         //9 if update comand is revieced the chage the value of angles.
            delay_ms(30);
            if(update==0x09)
            {
                theta1=(long int)Thetax;
                theta2=(long int)Thetay;
                theta3=(long int)Thetaz;
                update=0;
                z1=0;
                y=0;
                x=0;
                ready=0;
                PORTB=theta3;
            }
       }
  }
 }

unsigned char Received(unsigned short dataout)
{
     while(SSPSTAT.BF);
     datain= SPI1_Read(dataout);
     delay_ms(60);
     //PORTD=dataout;
     //PORTB=datain;
     return datain;
}
void SysInit()
{
  ADCON1=0x06;   // disable ADC and make all the pins of Port A as digital input
  TRISA=0xFF;
  PORTA=0x00;
  TRISB=0x00;
  PORTB=0x00;
  TRISD=0x00;
  PORTD=0x00;
  TRISC.B6=0;
  TRISC.B7=0;
  TRISC.B4=1;    //SDI input
  TRISC.B3=1;    //SCK input from master
  TRISC.B5=0;    //SDO output
  SSPSTAT.SMP=0; //input data sampled at middle
  SSPSTAT.CKE=0; // transition from idle to active
  SPI1_Init_Advanced(_SPI_SLAVE_SS_ENABLE, _SPI_DATA_SAMPLE_MIDDLE, _SPI_CLK_IDLE_LOW, _SPI_LOW_2_HIGH);
 }

 

[milan.rajik]

It will be better if you zip and post mikroC project files and also use syntax tags to post the code.

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Code C - [expand]
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your code [/syntax ] (remove the space before bracket close).

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