Fw: [avr-gcc-list] Butterfly code ported to gcc with bugs...

[Larry Barello]

----- Original Message ----- 
From: "Larry Barello" <address@hidden>
To: "Desi" <address@hidden>
Sent: Tuesday, July 01, 2003 12:53 PM
Subject: Re: [avr-gcc-list] Butterfly code ported to gcc with bugs...


> Just delete all IAR interrupt stuff and replace with the GCC SIGNAL/INTERRUPT 
> macros.
>
> e.g. From:
>
> #pragma vector = PCINT0_vect
> __interrupt void PCINT0_interrupt(void)
> {
> }
>
> To:
>
> SIGNAL(SIG_INTERRUPT0)
> {
> }
>
> and you are done.  You will need to add a couple include files at the top, 
> but I'll
let
> you figure out which ones.
>
> Cheers!
>
> ----- Original Message ----- 
> From: "Desi" <address@hidden>
> To: <address@hidden>
> Sent: Tuesday, July 01, 2003 12:20 PM
> Subject: Re: [avr-gcc-list] Butterfly code ported to gcc with bugs...
>
>
> > Thanks Joerg,
> >
> > your comments was very useful, but
> > but now I need to know how to translate,
> > this:
> >
> > #pragma vector = PCINT0_vect
> > __interrupt void PCINT0_interrupt(void)
> >
> > or better this kind of code, I'm looking arround
> > and there is not to much info, and sorry for the
> > comments of the code (in spanish), was some kind
> > of dark joke because avery thing is in english,
> > in the future, I'll put all the comments in english...
> >
> > Thanks for all, and if somebody else
> > want to join in this efford I will appreciate.
> >
> > Regards...
> >
> > Desi.
> > CICESE
> > Ensenada, Baja California, Mexico.
> >
> >
> > > "Desi" <address@hidden> wrote:
> > >
> > > > I did port the butterfly code to GCC,
> > > > but Still have a lot of warnings, no
> > > > errors, and need help to debug this code
> > > > may be if some one of you are interested,
> > > > let me know, here is attached the code
> > > > with the make file, to run just do make or
> > > > make all
> > >
> > > Sigh, i wish these Atmel folks were less sloppy about upper/lowercase
> > > filenames.  It took me quite some time to get the various #include
> > > statements match the actual filenames.
> > >
> > > I think most of the work will be to convert the interrupt handlers
> > > from IAR style to avr-gcc style.
> > >
> > > The »array subscript has type `char'« can certainly be ignored, though
> > > it might be worth the while to research whether the default signedness
> > > of the gcc "char" type is OK (i guess gcc will promote them to a
> > > signed int before actually applying them as an array index).
> > >
> > > The »comparison is always false due to limited range of data type«
> > > warnings are more serious.  Perhaps this as well as the integer
> > > promotion mentioned before can be worked around using -funsigned-char
> > > in the gcc CFLAGS.  The clean solution though would be to explicitly
> > > use "signed char" vs. "unsigned char" in the code (resp. to use the
> > > appropriate types from the C standard header <inttypes.h>).
> > >
> > > »built-in function `index' declared as non-function« could only be
> > > fixed in the gcc sources; `index' should not be a built-in function
> > > for avr-gcc.
> > >
> > > Finally, the linker warning »size of symbol `LCD_character_table'
> > > changed from 2 to 108 in LCD_driver.o« should be resolved, but given
> > > that it's a single warning, this will probably be the last one.  This
> > > most likely corresponds to the compiler warning »array
> > > `LCD_character_table' assumed to have one element« which is just an
> > > indication of sloppy programming style.  Hmm, given that the comment
> > > on that variable in demo.c is in Spanish (which i can only partially
> > > understand), my guess is that you're missing an "extern" keyword
> > > there.
> > > -- 
> > > J"org Wunsch        Unix support
> > engineer
> > > address@hidden        http://www.interface-
> > systems.de/~j/
> > >
> > > _______________________________________________
> > > avr-gcc-list mailing list
> > > address@hidden
> > > http://www.avr1.org/mailman/listinfo/avr-gcc-list
> > >
> > >
> >
> > -- 
> >
> >
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