[vmips] vtech helio

[Brian R. Gaeke]

Hi,

I'm unable to locate any documentation specific to the Philips R3912, so I'm
unable to say how well VMIPS would be able to model it. VMIPS models the
original MIPS R3000/R3000A.

On the other hand, have you looked at
http://vhl-tools.sourceforge.net/emu.html ? They claim to have a Helio
emulator "complete enough to run Linux".

/opt/mips is just the default directory where VMIPS expects to find your
MIPS cross toolchain. You can use configure's --with-mips option to specify
whichever directory you installed your MIPS toolchain into.

-Brian

> Hi;
> 
> I have a vtech helio that i wish to ultimately use as a midi 'controller' and
> patch repository and whatnot.
> 
> toward that end, i wish to get the teensiest, tiniest linux kernel running on
> it.
> 
> the problem is that flashing a helio is a raging pain in the ass (among other
> things, it wants very fresh batteries or it runs out of voltage to drive the
> write cycle on the flash).
> 
> so, since we all know that programming tends to be Compile, Fiddle, Compile,
> and that embedded programming tends to be Compile, Flash, Reboot, Fiddle,
> Compile, it behooves me to invest the cycles in accurate emulation up front so
> that i only play with the hardware when i am confident that i have somethng
> that works.
> 
> so how accurately does vmips model a phillips r3912? if it's missing stuff,
> how does one go about defining what's missing and then implementing it?
> 
> and how does one map /opt/mips in configure to whatever toolchain one is
> using? i am currently using crosstool to build a mipsel chain, but i am unsure
> what portion of that chain equates to /opt/mips ( is this an SGI-ism?  we
> dont have /opt's on freebsd filesystems...)
> 
> tnx for any answers you can provide!
> 
> johnu


-- 
Brian R. Gaeke, brg at dgate.org -- GnuPG encrypted mail gleefully accepted