CCS5 (5.0.1.00026) gives interrupt keyword as syntax error

Richard Burke

Expert 1910 points

This is a minor issue but CCS5 appears to report a syntax error on the interrupt keyword. The error is only shown in the editor and not in the Problems window during compilation.

For example in the following function definition the interrupt keyword is highlighted as a syntax error:

interrupt void Evh_ResetInt(void)

For information we are using the TMS570 processor running TMS470 Code Genration Tools 4.7.0B2.

Regards,

Richard

over 14 years ago

0 JohnS over 14 years ago

TI__Guru**** 162885 points

Richard,

This appears to be very similar to the problem reported here with other keywords: http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/88538/306519.aspx#306519

In that thread it only impacted .cpp files but with the interrupt keyword C files also show the problem. You can use the workaround described in the other thread if you want to get rid of the question marks. I will update the defect in the other thread to indicate that the interrupt keyword needs to be identified as well.

Regards,

John

0 Richard Burke over 14 years ago in reply to JohnS

Expert 1910 points

Hi John,

I can confirm that the fix suggested via the link that your post refers to (http://dev.eclipse.org/newslists/news.eclipse.tools.cdt/msg17873.html) resolves the problem.

In our case, I included the following text before the interrupt definition and the warning goes away:

#ifdef __CDT_PARSER__

#define interrupt

#endif

Regards,

Richard

0 Henri BRUSORIO over 14 years ago in reply to Richard Burke

Prodigy 170 points

Hi John,

I confirm too, but don't forget the two unserscores preceding interrupt key word.

#define __interrupt

Regards.

Henri

0 Harika Vemulapalli over 14 years ago in reply to Henri BRUSORIO

Intellectual 410 points

I am using CCS version 5.1.0.09000. I have a syntax error being reported for the interrupt written below:

#pragma vector = USCI_B1_VECTOR

__ interrupt void USCI_B1_ISR(void)

I have two underscores before the interrupt. Can anyone tell me the right syntax for interrupt.

Thank you!

0 AartiG over 14 years ago in reply to Harika Vemulapalli

TI__Guru**** 173310 points

Harika,

Did you make sure to use a new workspace whith CCS 5.1 or did you open a existing workspace created with an older version of CCS5 or CCSv4? The syntax errors may stil appear if you open an older workspace. Try opening a new workspace, and import your project into it and let us know if the syntax errors still persist.

0 Harika Vemulapalli over 14 years ago in reply to AartiG

Intellectual 410 points

Thanks Aarti, it cleared up my syntax errors!

0 Harika Vemulapalli over 14 years ago in reply to Harika Vemulapalli

Intellectual 410 points

I got the interrupt the 1^sttime through. It got lost after that but I tried some other sample code and they do the same thing.

#pragma vector = USCI_B0_VECTOR
__interrupt void USCI_B0_ISR(void)
{
switch(__even_in_range(UCB0IV,12))
{
case 0: break;                           // Vector 0: No interrupts
case 2: break;                           // Vector 2: ALIFG
case 4: break;                           // Vector 4: NACKIFG
case 6: break;                           // Vector 6: STTIFG
case 8: break;                           // Vector 8: STPIFG
case 10: break;                           // Vector 10: RXIFG
case 12:                                  // Vector 12: TXIFG
    if (TXByteCtr)                          // Check TX byte counter
    {
      UCB0TXBUF = *PTxData++;               // Load TX buffer
      TXByteCtr--;                          // Decrement TX byte counter
    }
    else
    {
      UCB0CTL1 |= UCTXSTP;                  // I2C stop condition
      UCB0IFG &= ~UCTXIFG;                  // Clear USCI_B0 TX int flag
      __bic_SR_register_on_exit(LPM0_bits); // Exit LPM0
    }
default: break;
}
}

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CCS5 (5.0.1.00026) gives interrupt keyword as syntax error