Hi All,

I'm developing an application using TMS320F2808 eZdsp.
I'm using three capture inputs. I'm facing an
ILLEGAL_ISR TRAP interrupt whenever I execute my code
from SARAM. Howver, when i do not have the signals
coming into my capture pins, I do not have any
ILLEGAL_ISR interrupt. 

I know that it is diffcult to understnad my problem
with the very limited information that I have given
here. But what I'm looking for is some similar
experiences come across by the members of this group
during their develoment stage. I've seen this link in
TI website
http://www-k.ext.ti.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=106,E=0000000000007153942,K=4707,Sxi=15,C
ase=obj(13634)
which discusses thi issue but haven't been able to
solve my problem with the inputs given there. 

If anyone has come across this issue, Please share it
with me.

Thanks ad regards,
Vishal.
You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

 

Hi,

Did you find any solution for your problem?
I am also facing similar problem, please let me know if you solved yours.
Thanks

Hi All,
>
>I'm developing an application using TMS320F2808 eZdsp.
>I'm using three capture inputs. I'm facing an
>ILLEGAL_ISR TRAP interrupt whenever I execute my code
>from SARAM. Howver, when i do not have the signals
>coming into my capture pins, I do not have any
>ILLEGAL_ISR interrupt. 
>
>I know that it is diffcult to understnad my problem
>with the very limited information that I have given
>here. But what I'm looking for is some similar
>experiences come across by the members of this group
>during their develoment stage. I've seen this link in
>TI website
>http://www-k.ext.ti.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=106,E=0000000000007153942,K=4707,Sxi=
15,Case=obj(13634)
>which discusses thi issue but haven't been able to
>solve my problem with the inputs given there. 
>
>If anyone has come across this issue, Please share it
>with me.
>
>Thanks ad regards,
>Vishal.
You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

 

Maybe not the solution, but be warned that if the system overflowed, this=20
can conduct to a ILLEGAL_ISR trap.
In this case, just have a look to the return address (RPC) where this trap=
=20
come from, maybe you will find an interresting thing.

Good luck !

Veuillez r=E9pondre =E0 v...@yahoo.com
Envoy=E9 par :    c...@yahoogroups.com
Pour :  c...@yahoogroups.com
cc :=20=20=20=20=20

Objet : [c28x] Re: ILLEGAL_ISR problem in TMS320F2808 eZdsp

Hi,

Did you find any solution for your problem?
I am also facing similar problem, please let me know if you solved yours.
Thanks

Hi All,
>
>I'm developing an application using TMS320F2808 eZdsp.
>I'm using three capture inputs. I'm facing an
>ILLEGAL_ISR TRAP interrupt whenever I execute my code
>from SARAM. Howver, when i do not have the signals
>coming into my capture pins, I do not have any
>ILLEGAL_ISR interrupt.=20
>
>I know that it is diffcult to understnad my problem
>with the very limited information that I have given
>here. But what I'm looking for is some similar
>experiences come across by the members of this group
>during their develoment stage. I've seen this link in
>TI website
>http://www-k.ext.ti.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=3D106,E=3D0000000000=
007153942,K=3D4707,Sxi=3D15,Case=3Dobj(13634)
>which discusses thi issue but haven't been able to
>solve my problem with the inputs given there.=20
>
>If anyone has come across this issue, Please share it
>with me.
>
>Thanks ad regards,
>Vishal.

You can post a message or access and search the archives of this group on D=
SPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

=20

Hi,

I've solved my problem long back. Here's what I did.

The problem was arising beacue of the following 
reason. I was accessing a wrong portion of the memory
(due to some bad pointer assignments) which was not to
be accessed. This results in an ILLEGAL_ISR. After I
changed my code so that the correct memory portion is
only getting accessed, the ILLEGAL_ISR did not come.

As mentioned in the link that I had sent in my earlier
mail, look into the stack. For more information on the
same, please look into the TMS320C28x DSP CPU and
Instruction set and reference guide (spru430d.pdf).
The section 3.5.2 discusses these issues.

Hope this helps.

Thanks,
Vishal

--- v...@yahoo.com wrote:

> Hi,
> 
> Did you find any solution for your problem?
> I am also facing similar problem, please let me know
> if you solved yours.
> Thanks
> 
> Hi All,
> >
> >I'm developing an application using TMS320F2808
> eZdsp.
> >I'm using three capture inputs. I'm facing an
> >ILLEGAL_ISR TRAP interrupt whenever I execute my
> code
> >from SARAM. Howver, when i do not have the signals
> >coming into my capture pins, I do not have any
> >ILLEGAL_ISR interrupt. 
> >
> >I know that it is diffcult to understnad my problem
> >with the very limited information that I have given
> >here. But what I'm looking for is some similar
> >experiences come across by the members of this
> group
> >during their develoment stage. I've seen this link
> in
> >TI website
>
>http://www-k.ext.ti.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=106,E=0000000000007153942,K=4707,Sxi=
15,Case=obj(13634)
> >which discusses thi issue but haven't been able to
> >solve my problem with the inputs given there. 
> >
> >If anyone has come across this issue, Please share
> it
> >with me.
> >
> >Thanks ad regards,
> >Vishal.
>

You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________