Re-Post on INT

Hello linq ,

Like you told I have declared the global variable as "volatile" and followed setting up the NACK bit before setting the stop bit like this ,

case 0x50:

MasterBuff[Index] = I21DAT ;

if(Index != READ_SIZE)
{

 I21CONSET = SET_ACK_BIT;
 Index++;

}

else
{
  Index = 0;
  I21CONCLR = SEND_NACK_BIT;
  I21CONCLR = STOP_BIT;
  I21CONCLR = CLEAR_INTERRUPT_BIT;

}

but still I am not able to get the desired result .

Looking forward,

Sam

Hello linq ,

Like you told I have declared the global variable as "volatile" and followed setting up the NACK bit before setting the stop bit like this ,

case 0x50:

MasterBuff[Index] = I21DAT ;

if(Index != READ_SIZE)
{

 I21CONSET = SET_ACK_BIT;
 Index++;

}

else
{
  Index = 0;
  I21CONCLR = SEND_NACK_BIT;
  I21CONCLR = STOP_BIT;
  I21CONCLR = CLEAR_INTERRUPT_BIT;

}

but still I am not able to get the desired result .

Looking forward,

Sam

1. Please provide the source code of your main().

2. Please re-read the manual, re-write your code.

3. Please trace your code step by step.

I have used the Debugging tool and simulated it to see I2C interrupt ; all the status are getting updated , it is entering into case 0x50 . This is my main ,

void main()
{
  I2C_init();

   while(True)

  {

    I2C_SET_START_BIT ;

  }

}

I have used the Debugging tool and simulated it to see I2C interrupt ; all the status are getting updated , it is entering into case 0x50 . This is my main ,

void main()
{
  I2C_init();

   while(True)

  {

    I2C_SET_START_BIT ;

    if(MasterBuffer[0] == 1)
     Disp (1);

    else if (MasterBuffer[1] == 2)
     Disp (2);

    Similarly upto MasterBuffer[23]...

  }

}

What is the result you expect?

What is the result you get?

What is "I2C_SET_START_BIT"?

What is "Disp (x)"?

Is Salihu Aliyu your classmate?

Hey Linq ,

Surprisingly , when I checked under case 0x50 I came to know even after exceeding my Read Index my ACK bit was set,When I cleared that bit once for all , I couldn't beleive myself that I got the desired result .

Sir about Salihu Aliyu , Could i Know whose that person ???

Thanks for all your Inputs and support Linq ,

Regards,
Samjith.

but his name is John, not Linq...

Hi Samjith Wasim,

You still need to:

1. Please re-read the manual, re-write your code.

2. Please trace your code step by step.

I believe that, there are some other bugs in your code.

Hey John ,

Since the application which I am working on is a real-time appn . I modified the code as told by you and checked for all the test cases , its working fine ...

Thanks for your Support !!!

Regards,
Samjith