# include<SFR8032.H>
# include <stdio.h>

# define READ 0x01         // 0x03                      // changed from c0
# define WRITE 0x01          //0x02                     // changed from a0  //AGAIN CHANGE FROM 05

# define ERASE 0x03
//# define ERAL  0x90
//# define WRAL  0x88
//# define EWDS  0x80
unsigned char spi_insert( unsigned char data1);
void init_spi();
void delay_ms1(unsigned int Delval_ms);
void delay1(unsigned char Delval);
void write_spi(unsigned int dat , unsigned char address);  //change from unsigned char dat
void erase_spi(unsigned char address);
unsigned char read_spi(unsigned char address);
void erasewriteenable_spi();
void eraseall_spi();
void writeall_spi(unsigned int );  //change from unsignedc char
unsigned char read_data = 0x00;  
unsigned char read_data1 = 0x00;

 



void init_spi()
{  
   P11 = 1;
   P15 = 1;
   P16 = 1;
   SPCTL = 0xDD;
   SPCFG = 0x00;
   delay_ms1(10);
   P11 = 0;
   
} 
//DELAY FUNCTIONS
//delay(10) = 200usec.


void erasewriteenable_spi()
{       // P22 = 1;
	  P11 = 1;	
spi_insert(0x01);
spi_insert(0x30);        // Make sure CS is high
//spi_insert( 0x02);
        
}

void delay1(unsigned char Delval)
{
 unsigned char i=25;
 for(;Delval!=0;Delval--)
  for(;i!=0;i--);
}
 

void delay_ms1(unsigned int Delval_ms)
{
 for(;Delval_ms!=0;Delval_ms--)
 {
  delay1(250);
  delay1(250);
  delay1(250);
  delay1(250);
 }
}

  
unsigned char spi_insert( unsigned char data1)
{     
  SPDAT = data1;
   while(!(SPCFG & 0x80));
   SPCFG = 0x00;
   read_data = SPDAT;
   

   return(read_data);
}





 void write_spi(unsigned int dat , unsigned char address)                //changed from unsigned char dat 
 {   unsigned char cat;
P11 = 1;
   spi_insert(WRITE);
   /* address /= 0x80;      //added     use this for 8 bit mode
   spi_insert(address);
   spi_insert(dat);*/
  address &=0x7f;
  address |=0x40;
   spi_insert(address);
   cat = dat & 0x00FF;
    spi_insert(cat);
    dat = dat >> 8;
cat = dat & 0x00FF;
    spi_insert(cat); 
P11=0;

delay_ms1(10);

P11 = 1;
while(P16!= 1);
  P11=0;
/*
 delay_ms1(15);
 P11 = 1;
 while(P16 != 1); */                                                                                                          }


unsigned char read_spi(unsigned char address)
{  
    P11 = 1;
    spi_insert(READ);
      address |=0x80;
    address &=0xBF;
    read_data1=spi_insert(address);
     read_data1=spi_insert(0x00);
     
    P11 = 0;
  return(read_data1);
}
   


 void erase_spi(unsigned char address)
{   P11 = 1;
    spi_insert(ERASE);
    address /= 0x80;
    spi_insert(address);
    P11 = 0;
     delay_ms1(10);
}    


       

void eraseall_spi()
{ 
P11 = 1;
  spi_insert(0x01);
   spi_insert(0x20);
 P11 = 0;
delay_ms1(10);
} 


void writeall_spi(unsigned int dat)
{   unsigned char cat;
  P11 = 1;
   spi_insert(0x01);
   spi_insert(0x10);
   cat = dat & 0x00FF;
   spi_insert(cat);
  dat = dat>>8;
 cat = dat & 0xFF00;
  spi_insert(cat); 
P11 =0;
delay_ms1(15);
  P11 = 1;
while(P16 !=1);
  P11 = 0;
} 
//delay_ms1(10);
 


void erasewritedisable_spi()
{    P11 = 1;
     spi_insert(EWDS);
     P11 = 0;
 delay_ms1(10);
}