PT68K5

[tdur...@mlode.com]

Hi,

Has anyone gotten a PT68k5 (CD68020) to boot and run with a 68030 CPU,
any info would be great.

Thanks Tony

[Eric Smith]

tdur...@mlode.com writes:
> Has anyone gotten a PT68k5 (CD68020) to boot and run with a 68030 CPU,
> any info would be great.

I don't know anything about the PT68K5, but since it is designed for an
MC68020, how do you propose to plug an MC68030 into it? They're not pin
compatible.

[tdur...@mlode.com]

On Feb 28, 8:47 pm, Eric Smith <e...@brouhaha.com> wrote:

By making an adapter board and pluging it into the 68020 socket.
The 68030 data book has circuit buy I have not gotten it to work on
The K5.

[tdur...@mlode.com]

On Feb 28, 8:47 pm, Eric Smith <e...@brouhaha.com> wrote:

By making an adapter board and pluging it into the 68020 socket.

[Martin Gregorie]

The CPU and boot ROM are on a daughter board, so (in theory) its should
be possible to replace the daughter board with one carrying a 68030 or
68040.

I have a CD68020, but am (very slowly) migrating off it and on to
os9exec, which is many times faster than the 68020 hardware when run on
an IBM NetVista (766 MHz) running Fedora Core 6.

--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

[Eric Smith]

tdur...@mlode.com writes:
> By making an adapter board and pluging it into the 68020 socket.
> The 68030 data book has circuit buy I have not gotten it to work on
> The K5.

Have you used a logic analyzer to look at the first bus cycles coming
out of reset? That would be the first place I'd look.

[Jack Crenshaw]

Just so I'm clear: We're talking about the Peripheral Technology
system, right?

Jack