Re: [Simulavr-devel] Support for atmega2560 in the future?

[ThomasK]

Hi Martin,

> I hope other people will find time to support you, and I hope I will do 
> so, in the future!

Maybe that this could become my job ... ;-) If you have some experience 
with the code, it's not really hard work. But to insert some code is one 
part, to test it the other. It's not really nice to get a program which 
should support a feature and you step in a error, seeking, what's the 
bug in YOUR code and a few days later (from your precious free time!) 
you'll understand, that this was a bug in this program. Really not nice. ;-)

By the way, you're not save, that there are no bugs. Michael has found 
out a few weeks before such bug, (write PIN to toggle PORT) and I'm 
sure, that he was also seeking a lot of hours before. Hold it in mind!

And we are lucky about every good description from a found bug in 
simulavr, the best would be with a piece of code to get this bug. Or 
some code to test something in simulavr.

For my interest: which hardware components you want to use in your 
Atmega2560 code, eg. timer, uart and so one. To get the full blown 
device working with one shot takes much more time as to start with a few 
components and to accept, that this isn't a full functional simulation 
for this device.

> [1] In the README it's noticed "./configure 
> --enable-bfd=DIRECTORY_TO_BINUTILS/BFD" but correct would be 
> "./configure --with-bfd=/DIR-TO-AVR-TOOLKIT-ROOT

Hm, the first one is right, but also the second in some cases. :-) I 
know, that there are sometimes problems with the original binutils-bfd-lib!

Normally you don't need the AVR cross variant from bfd library, the 
variant from system is enough, we don't use any AVR specific part. I'm 
not sure, what's the reason, (I have a theory, but not tested) but I 
know, that, if you use the systems bfd library, it can end in a 
segfault. It happens on loading elf file in avrdevice.cpp. In this case 
you can fix it by pointing to AVR specific bfd library. In documentation 
on GIT repo I wrote something about that.

cu, Thomas