Re: "Free" emulator?

[Chris Johns <ccj at acm dot org>]

"Aaron J. Grier" wrote:
> 
> On Mon, Jan 24, 2000 at 12:34:31PM -0500, Quality Quorum wrote:
> 
> > I am sick an tired of various BDMs to the extent that I am going to
> > put together BDM interface implemented by FPGA/CPLD which will work
> > over standard EPP port, and I am going to make verilog/vhdl code for
> > the thing available along with gdb target code supporting it.
> 
> Don't reinvent the wheel...  There's already a plethora of BDM
> interfaces out there including, but not limited to
> 
> - motorola two-chip PD interface
> - public five chip interface
> - P&E ICD interface
> - Pavel Pisa's(?) P&E clone(?) (16v8 PAL based)
> - various other commercial solutions from EST, softaid, and god knows
>   who else...
> 
> and this is just CPU32...  I have no idea if any of these work with
> Coldfire or PowerPC.
> 

I added Coldfire support to Eric's driver.

> [2] of the two linux BDM drivers sets I've seen, the Chris Johns / Eric
>     Norum driver appears to be the cleanest.  I'd suggest using it as
>     the base from which to hack on...
> 

It is structured to allow new interface hardware to be added without the
need to rewrite the driver or change GDB. It has been ported to SCO
Unix, and NT.

-- 
 Chris Johns, mailto:ccj@acm.org

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