Re: [avr-gcc-list] secureAVR processors from Atmel working with avr-gcc

[Per Arnold Blåsmo]

E. Weddington wrote:

> Per Arnold Blåsmo wrote:
>
> > Hi All!
> >
> > I just wants to share some information about using the avr-gcc and 
> > avr-libc on the secureAVR chips from Atmel.
> >
> > In a project I am working on we decided to us Atmel secure chip 
> > AT90SC3232CS instead of an ordinary Atmel chip.
> > As most of you knows, info about the chips are under NDA. Therefor I 
> > can not give any information about the chips them self.
> >
> > But, I can share info about that I have made it possible to compile a 
> > program using avr-gcc and avr-libc and run it successfully on 
> > AT90SC3232CS. It should work for other secureAVR chips also. I will 
> > do it for the AT90SC144144CT in the near future.
> >
> > I translated the header file and modified avr-libc, avr-gcc and 
> > avr-binutils to accept the new processor. The patches I made was only 
> > the one that is suggested on avr-libc's home page for adding another 
> > processor.
> >
> > The reason for doing this is that in my company we run all servers 
> > and workstations on Linux. Our working environment is Linux. Since 
> > Atmel only supports the IAR compiler on these chips and IAR only 
> > works on MS-windows, I had a problem. I did not want to convert to 
> > MS-windows so I had to try modyfing the avr-gcc toolchain.
> >
> > So far I have only compiled a simple program, but it worked. I am now 
> > aiming for some more heavy stuff :-)
>
>
>
> This is great!

Thanks :-)

> > I edit my program using Eclipse.
> > Compile it using avr-gcc and avr-libc.
> > Convert the compiled .elf file to extended .coff for debugging
> > I am using the Voyager emulator system from Atmel to do debugging of 
> > my code.
> > Since I do not have the spec. of the communication protocol with the 
> > Voyager I have to use AVRStudio (on a windows PC :-( to debug.
> > (I read somewhere that AVRstudio 4.10 can read .elf files, but have 
> > not tested that yet)
> Correct, but only ELF files that contain DWARF2 debugging info. So 
> you'll have to rebuild your toolset to contain that configure option.
OK, I tried to use the option -gdwarf-2 instead of -g in my makefile, 
but got an error when compiling.
"secureAVR_test.c:1: error: target system does not support the "dwarf-2" 
debug format"

Is there any info on how to set the parameters to get this debug format.

> > Atmel supplies an windows-dll file for communication with the 
> > Voyager, but I do not know any way to use a windows-dll in a Linux 
> > program. Maybe usage of wine and winelib might do it? Perhaps make a 
> > Linux program as a connection between simul-avr and Voyager?
>
>
>
> You'll have to contact Atmel about this. This is the first I've heard 
> about the Voyager emulation system from Atmel.
Have a look at http://www.atmel.com/dyn/resources/prod_documents/1553S.PDF
Its a big and expensive beast :-)

I have the API spec for the windows dll file, but not any code. I have 
contacted Atmel and asked if they can supply the windows-dll as a Linux 
library or as source code. I am sure they don want to give me the source 
code, but it cant hurt to ask :-)

> > If someone has be able to tun AVRstudio under wine or otherwise on 
> > Linux, I would like to know how ;-)
>
> I think I heard that it's possible, but I don't know how. Some other 
> Linux people would have to comment on this.
I will do some more research on this and see if I find any info on some 
wine forums.

> Eric
Per A.