LPC2103 I2C problem...

Development Boards MicroMod
1

Hi,

I have a LPC2103 board. I need to read lis3lv02dq accelerometer by I2C.

I read the samples, I applied it in Keil and simulate with proteus but it isn’t working.

The I2C0Stat always 0xF8…

The sample is that; (Application notes.)

http://www.standardics.nxp.com/support/ … n10369.pdf

My circuit;

http://img440.imageshack.us/my.php?image=i2cfl1.jpg

But i2c is not working I can’t send the data to expander.

#include <LPC2103.h>


void I2C_ISR(void)		 __irq; 

void ISR_8(void);
void ISR_18(void);
void ISR_28(void);

int main(){

MEMMAP = 0x02; 

VICIntSelect = 0x00;	
VICIntEnable  = 0x200;	
VICVectCntl0  = 0x29;	
VICVectAddr0 = (unsigned long) I2C_ISR;


PINSEL0 = 0x50; 

IODIR=0xF00000F0; 
//IOSET=0xF0; 


//
//I2C ayarlari
//
I2C0CONCLR = 0x6C; 

I2C0CONSET = 0x40; 

I2C0SCLH = 0xC;
I2C0SCLL = 0xD;


I2C0CONSET = 0x60;


while(1);
}



void I2C_ISR()	  __irq 
{

int temp=0;

IOSET = 0xF0000000; //Never I see that!
  
  
temp=I2C0STAT; 
    
switch(temp) 
   { 
    case 8: 
      ISR_8(); 
      break; 
         
    case 24: 
      ISR_18();
      break; 
         
    case 40: 
      ISR_28();
      break; 
    
    default : 
      break; 
}    
VICVectAddr=0xFF; 
}



void ISR_8(){

// Port Indicator 
IOCLR=0x10;    
// Slave address + write   
I2C0ADR=0x74;    
// Clear SI and Start flag 
I2C0CONCLR=0x28;      
// Port Indicator 
IOSET=0x10; 

}

void ISR_18(){

// Port Indicator 
IOCLR=0x20;    
// Data to be transmitted 
I2C0DAT=0x55;        
// clear SI 
I2C0CONCLR=0x8; 
// Port Indicator      
//IOSET=0x20; 

}


void ISR_28(){

// Port Indicator 
IOCLR=0x80; 
//Transmit stop c
I2C0CONSET=0x10;   
//clear SI
I2C0CONCLR=0x8;   
//Port Indicator 
//IOSET=0x80; 

}