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prwatCCS
Joined: 10 Dec 2003
Posts: 67
Location: West Sussex, UK
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 Posted: Tue May 11, 2004 2:21 am |
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further to my last post, I do not have 3.187 to try it with.
I cannot see anything obvious in the devices file (using device editor) which switches this on or off - what have I missed ?
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Peter Willis
Development Director
Howard Eaton Lighting Ltd UK |
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ckielstra
Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands
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| Posted: Tue May 11, 2004 6:12 am |
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Congratulations! You have found another bug in v3.190!
I do have v3.190 here, but never tried it because several people reported errors in it and the features changed from v3.187 are not important to me.
Just to prove you are right I installed v3.190, and guess what, now my RETFIE 1 changed into an RETFIE 0 too!!!!
So in the change from 3.187 to 3.188 this functionality has broken. Even when this is due to some new (undocumented) options you would suspect the compiler to be backwards compatible.
Please report this to CCS so they can fix it in the next release. |
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prwatCCS
Joined: 10 Dec 2003
Posts: 67
Location: West Sussex, UK
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| Posted: Tue May 11, 2004 7:39 am |
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I have posted it to CCS (twice) - once as a query and once as a bug report after the various posts here.
I have even had a response 
| Quote: |
This message is a reply to CCS e-mail id: 4E2298
The FAST ISR should always use "RETFIE 1" however there is a bug in 3.190 that
prevents this. This will be fixed in the next release.
> Is there a way of telling the FAST interrupt handler to return with a
> RETFIE 1 rather than RETFIE 0 ?
>
> Obviously, my interim workaround is (for a Timer2 Fast irq)
> Code:
>
> #int_TIMER2 FAST
> TIMER2_isr()
> {
>
> .....
>
> CLEAR_INTERRUPT(INT_TIMER2);
> #asm
> RETFIE 1
> #endasm
> }
>
> I am proposing to rely on the processors ability (for the 18Fxx2) to
> context save and restore W and STATUS, which is why I want the RETFIE 1.
>
> Earlier posts to the CCS use forum suggested that use of the keyword FAST
> would result in the RETFIE 1 but in my .lst file it is RETFIE 0, hence the
> apparent need for my workaround.
>
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Remember this problem is also observed in 3.188 as far as I can tell.
you have been warned 
_________________
Peter Willis
Development Director
Howard Eaton Lighting Ltd UK |
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