RE: [ECOS] Threading on EDB7211

[Rene dot Affourtit at pemstar dot nl]

I modified the code to let ecos cooperate with the angel debugger.
this dates back to the time gdb, cygwin and angel didn't cooperate (problem
is fixed in cygwin 1.1, I haven't tested it, but I haven't heard complaints
either).
What I do in the interrupt handler is I check for interupts from uart2 (and
some checks to see if angel is currently running) and let these be handled
by angel.

It turns out angel doesn't acknowledge a transmit interrupt for uart2. So,
once a Tx interupt was set all interupts got handled by angel including the
timer interrupts. Solution? don't let angel handle this interupt or make
sure it is acknowleged.



                                                                                                                     
                    Gary Thomas                                                                                      
                    <gthomas@redhat        To:     Rene.Affourtit@pemstar.nl                                         
                    .com>                  cc:     ecos-discuss@sourceware.cygnus.com                                
                    Sent by:               Subject:     RE: [ECOS] Threading on EDB7211                              
                    gary@ares.chez-                                                                                  
                    thomas.org                                                                                       
                                                                                                                     
                                                                                                                     
                    06/19/00 02:06                                                                                   
                    PM                                                                                               
                                                                                                                     
                                                                                                                     




On 19-Jun-00 Rene.Affourtit@pemstar.nl wrote:
>
> Thanks for the hint,
>
> but as it turned out my problem was caused by a modification I made in
> vectors.s which caused that no interupts were handled by ecos at all.
> It's strange how two very different problems can have the same symptoms.
> Sorry to have bothered you all with something that was entirely my own
> fault.
>

No need to apologize (just don't do it again :-)

This mailing list is supposed to be a forum where ideas and questions can
be posted and hopefully resolved.  Even if the problem was your fault,
asking it here let's everyone who uses eCos about it.  When a solution
is found, we all hear about it as well and can benefit from the experience.

Just for grins - what did you change in vectors.S, why did you do it and
what did you do wrong?  [Just for pedagogic enlightment :-) ]