Howard Feindel
2015-05-24 21:28:38 UTC
Well, folks, itâs been almost a year since the postings in June 2014
(thread started by Ed Snider in May) in which John solicited comments on a
68K CPU board with minor revisions from the V3 board, a reworked board, or
a 68020 board. The last posting was by Josh Bensadon on 04 June.
Then, in January of this year, Rick Bromagen started another thread,
which petered out in February after Johnâs final posting.
The 68K CPU board was my main reason for getting involved with this group
in June of last year. Unfortunately, since then, I havenât seen anything
definite regarding another production run for this board.
So I contacted John this morning regarding the current status of the board,
and here are his comments:
Unfortunately the 68K board has kind of fallen off the wagon. There were
some timing issues above 6-8MHz that really need a deep study of the
signals. Iâm so rusty on the 68K signals/CPU it would need an extensive
time commitment to debug.
Somebody else had problems trying to get the current board working with the
V2 IDE board. I think it was Yoda, (traveling so I cannot check). This
was one of the reasons for doing the V3 IDE board. On a V3 prototype he
seem to feel it now worked.
My suggestion would be to put up a post on the Googleâs Group and see what
the interest and consensus going forward would be.
I certainly can do another board if there are just small changes. For
example 4 boards by PCBCart run about $170 + FedEx.
John
Personally, I want two 68000/68010 boards, either V3 (with the updates) or
a new GAL-based version, and preferably with 68K-master/Z80-slave
capability. And I'd like very much to be able to run them at higher speeds
than 6-8MHz. I'm more than willing to wait a while to give John time
to wave his trusty magic wand and give us a stable 68K CPU board that will
run above 6-8MHz and work well with other boards. Going forward, Iâd also
be interested in a 68020 board, but that will, of course, require lots of
work.
Iâd also be interested in finding out from someone (Yoda/Dave, perhaps?) if
the new production V3 Dual IDE/CF board definitely alleviates any of
the issues with the V3 68K board. Iâm not sure whether or not there are
problems with the 68K and the Propeller I/O board. Comments, anyone?
In line with Johnâs suggestion that we see what interest currently exists
for the 68K CPU boards, letâs see where everyone currently stands. Hereâs
an update to the latest list that Ed Snider posted last year (I added Jack,
Josh, Rick, and myself to the original list):
1. Fabio Battaglia - 3
2. Paul Birkel - 1
3. Todd Goodman - 3
4. Brian Marstella - 1
5. Jerry Brumble - 2
6. Gary Kaufman - 2
7. Andrew Bingham - 1
8. Matt Turner - 2
9. Yoda - 1
10. Andrew Kwan - 1
11. Ian May - 2
12. Jack Rubin - 1
13. Josh Bensadon - 1
14. Rick Bromagen - 2
15. Howard Feindel - 2
Total: 25
(I assume that everyone would prefer an updated V3 board rather than just
another run of the current V3 board. If not, sound off, please.)
If youâre not listed but are interested, or if your interest or quantity
have changed, please post and so state.
Thanks,
HWF
(thread started by Ed Snider in May) in which John solicited comments on a
68K CPU board with minor revisions from the V3 board, a reworked board, or
a 68020 board. The last posting was by Josh Bensadon on 04 June.
Then, in January of this year, Rick Bromagen started another thread,
which petered out in February after Johnâs final posting.
The 68K CPU board was my main reason for getting involved with this group
in June of last year. Unfortunately, since then, I havenât seen anything
definite regarding another production run for this board.
So I contacted John this morning regarding the current status of the board,
and here are his comments:
Unfortunately the 68K board has kind of fallen off the wagon. There were
some timing issues above 6-8MHz that really need a deep study of the
signals. Iâm so rusty on the 68K signals/CPU it would need an extensive
time commitment to debug.
Somebody else had problems trying to get the current board working with the
V2 IDE board. I think it was Yoda, (traveling so I cannot check). This
was one of the reasons for doing the V3 IDE board. On a V3 prototype he
seem to feel it now worked.
My suggestion would be to put up a post on the Googleâs Group and see what
the interest and consensus going forward would be.
I certainly can do another board if there are just small changes. For
example 4 boards by PCBCart run about $170 + FedEx.
John
Personally, I want two 68000/68010 boards, either V3 (with the updates) or
a new GAL-based version, and preferably with 68K-master/Z80-slave
capability. And I'd like very much to be able to run them at higher speeds
than 6-8MHz. I'm more than willing to wait a while to give John time
to wave his trusty magic wand and give us a stable 68K CPU board that will
run above 6-8MHz and work well with other boards. Going forward, Iâd also
be interested in a 68020 board, but that will, of course, require lots of
work.
Iâd also be interested in finding out from someone (Yoda/Dave, perhaps?) if
the new production V3 Dual IDE/CF board definitely alleviates any of
the issues with the V3 68K board. Iâm not sure whether or not there are
problems with the 68K and the Propeller I/O board. Comments, anyone?
In line with Johnâs suggestion that we see what interest currently exists
for the 68K CPU boards, letâs see where everyone currently stands. Hereâs
an update to the latest list that Ed Snider posted last year (I added Jack,
Josh, Rick, and myself to the original list):
1. Fabio Battaglia - 3
2. Paul Birkel - 1
3. Todd Goodman - 3
4. Brian Marstella - 1
5. Jerry Brumble - 2
6. Gary Kaufman - 2
7. Andrew Bingham - 1
8. Matt Turner - 2
9. Yoda - 1
10. Andrew Kwan - 1
11. Ian May - 2
12. Jack Rubin - 1
13. Josh Bensadon - 1
14. Rick Bromagen - 2
15. Howard Feindel - 2
Total: 25
(I assume that everyone would prefer an updated V3 board rather than just
another run of the current V3 board. If not, sound off, please.)
If youâre not listed but are interested, or if your interest or quantity
have changed, please post and so state.
Thanks,
HWF
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