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

[Per Arnold Blåsmo]

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 :-)

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)

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?

If someone has be able to tun AVRstudio under wine or otherwise on 
Linux, I would like to know how ;-)

Anyhow, I just wanted you to know that is works and is possible.
If any one else has an NDA with Atmel for these chips and Atmel approves 
of if it, we might share that info.

Regards
Per A.

--
Per Arnold Blåsmo
e-mail: Per.A.Blaasmo-at-norbit.no

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