Years ago, in 1983 or so, I built a small Forth computer on a
Rockwell development board, with R65F11 CPU and R65FR1
Forth ROM. It would be nice to play with the system again, but
the ROM has gone bad. The CPU and its internal Forth core
still work but I get a "NO ROM" message.
Does anybody know where I could find an image of the 8 kB
R65FR1 ROM ? Searching with Google does not help.
--
Tuukka
http://flipperit.net/tkalliok/
Does the 65F11 need a ROM? I don't think my HorneForth system has one.
Jerry
--
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
ISTR the Forth kernel was/is in an on-chip ROM.
Cheers,
Elizabeth
--
==================================================
Elizabeth D. Rather (US & Canada) 800-55-FORTH
FORTH Inc. +1 310-491-3356
5155 W. Rosecrans Ave. #1018 Fax: +1 310-978-9454
Hawthorne, CA 90250
http://www.forth.com
"Forth-based products and Services for real-time
applications since 1973."
==================================================
Perhaps you may be able to read the ROM on a more forgiving
bus and then make a new copy that can be read by the old
system. It is something to consider.
Best Wishes,
Jeff Fox
P.S. cool pinball site and information
>Jerry Avins wrote:
>>
>>
>> Does the 65F11 need a ROM? I don't think my HorneForth system has one.
>
>ISTR the Forth kernel was/is in an on-chip ROM.
>
Yes, the 65F11 contains an 3 kB on-chip ROM (that is OK on my system)
but the Rockwell development board came with an extra 8 kB ROM with
the complete fig-FORTH vocabulary, and that is now bad in my board
even though the CPU with it's on-chip kernel still boots.
--
Tuukka
http://flipperit.net/tkalliok/
>Perhaps you may be able to read the ROM on a more forgiving
>bus and then make a new copy that can be read by the old
>system. It is something to consider.
I already tried two different prom programmers, with no luck.
Maybe I could try reading with lower/higher Vcc voltage.
>
>P.S. cool pinball site and information
Thanks !
--
Tuukka
http://flipperit.net/tkalliok/
By "ROM", I meant a socketed one. Tuukka: I might be able to find a 1Mhz
65F11 board in my CCH (computer compost heap). Do you want me to look?
Hi
You are, of course, aware that mask ROM's usually have
an inverted select line, as compared with EPROM's?
Dwight
> On Mon, 14 Oct 2002 20:12:12 GMT, Jeff Fox <f...@ultratechnology.com>
> >Perhaps you may be able to read the ROM on a more forgiving
> >bus and then make a new copy that can be read by the old
> >system. It is something to consider.
> I already tried two different prom programmers, with no luck.
> Maybe I could try reading with lower/higher Vcc voltage.
> Thanks Tuukka
> http://flipperit.net/tkalliok/
If it don t work
You can get a copy (Image) from me from my own
Rockwell RSC - System.
U7 - R 65FRI P 1.7
R 2952 - 13
Only one Question :
What is the correct Type to read out the ROM ?
In other Words : What is the nearest Equivalent
EPROM - Type ?
Bye from Germany
Tschüss aus Eberbach / Odenwald
** Höchster Berg im Odenwald : Katzenbuckel 636 m **
## CrossPoint v3.11 R ##
>You can get a copy (Image) from me from my own
>Rockwell RSC - System.
>
> U7 - R 65FRI P 1.7
> R 2952 - 13
>
>Only one Question :
> What is the correct Type to read out the ROM ?
> In other Words : What is the nearest Equivalent
> EPROM - Type ?
Thank you very much, Thomas ! I would be very happy
if you sent me the image. Please use mail address:
tkal...@flipperit.net
My board has an ordinary 2764 eprom, with label
R65FR1 V1.5, so I think your chip can be read as
well by setting the eprom type as 2764.
--
Tuukka
http://flipperit.net/tkalliok/
>By "ROM", I meant a socketed one. Tuukka: I might be able to find a 1Mhz
>65F11 board in my CCH (computer compost heap). Do you want me to look?
Thanks, Jerry, but I need a ROM specifically for the Rockwell
RSC Forth development board. If your board is some other
R65F11 application, it might not have the correct ROM/EPROM.
--
Tuukka
http://flipperit.net/tkalliok/
> On 15 Oct 2002 22:17:00 +0100, top...@rng.forth-ev.de (Thomas Prinz)
Well , let me have first a look into the Rockwell Datasheets
because someone say there is a inverted Line on the ROM
The second way is to write it to disk (720 k)
and trnasfer it to the PC
I try it out in the weekend
bye from Germany.
>Well , let me have first a look into the Rockwell Datasheets
>because someone say there is a inverted Line on the ROM
I think the chip is pin compatible with 2764 eprom, because
that is what used to work fine in my board.
>The second way is to write it to disk (720 k)
>and trnasfer it to the PC
>
>I try it out in the weekend
I don't remember if the RSC-Forth had a DUMP word,
but assuming so, you could read the rom with
HEX 2000 3FFF DUMP
and capture output to file. That would be just fine
for me.
--
Tuukka
http://flipperit.net/tkalliok/
tuukka.ka...@nospam.nokia.com.invalid (Tuukka Kalliokoski) wrote in message news:<3dae7d1e....@news.europe.nokia.com>...
Bye from Germany
> I don't recall when but I think many programmers leave the
> VPP line high ( 12.5 to 21 volts ) during reads, since there
> is a separate programming signal. Before sticking a regular
> ROM in a programmer, always rewire the VPP pin to the static
> level that it normally is in the system it comes from ( normally
> +5V ). If you don't do this it may blow the ROM.
Thank you , I checked it out
> Better quality programmers switch the VPP but cheap ones don't.
Don t know about my programmer GALEPIII (www.conitec.de)
I think it is not really "cheap" anyway. ;-) (app. 350 EURO)
> I always make up simple socket adapters to read ROM's.
That s a very good Idea
> This is how I know that the select line is often inverted
> for mask ROM's relative to EPROM's ( but not always ).
> !!!! Still, don't put a mask ROM in a programmer without
> bypassing the VPP pin!!!!
> Dwight
Tschüss aus Eberbach / Odenwald
>> and capture output to file. That would be just fine
>> for me.
>I work on it , feedback in a few day s
Thanks. Take yor time, no hurry !
--
Tuukka
http://flipperit.net/tkalliok/
Okay , here I am back again.
Something awful things hapen I can t tell you %-(
the RSC run the last time, 2 Years ago
> > >The second way is to write it to disk (720 k)
> > >and trnasfer it to the PC
> > >I try it out in the weekend
> Sorry , no time in the weekend :-((
Yeah !
> > I don't remember if the RSC-Forth had a DUMP word,
> > but assuming so, you could read the rom with
> > HEX 2000 3FFF DUMP
> > and capture output to file. That would be just fine
> > for me.
> I work on it , feedback in a few day s
I will send you two Files via E-MAIL
the First made with DUMP and the Second with ADUMP
I Hope, this will help you
May the FORTH with you 8-)
>I will send you two Files via E-MAIL
>the First made with DUMP and the Second with ADUMP
>
>I Hope, this will help you
>
>May the FORTH with you 8-)
Thank you _very_ much ! I will burn a new ROM in
weekend, and see if my RSC system then works.
Take care.
--
Tuukka
http://flipperit.net/tkalliok/
-------------------------------------------------------------------------
RSC-FORTH Errata
RSC-FORTH V1.5
The RSC-FORTH 1.5 described in this manual is contained in
the following parts:
R65F11 FORTH Microcomputer (R1100-11 or R1100-14, 1MHz)
or
R65F12 FORTH Microcomputer (R1200-11, 1 MHz)
or
R65FR1 Development ROM (R2592-12, 1 MHz)
Errors in this version can be corrected as follows:
1. ADMP leaves two undefined bytes on the stack
Redefine the word as:
: ADMP ADMP 2drop ;
2. FORMAT is inoperative.
Redefine the word as:
: FORMAT 2 *SWAP 0 do dup 1+ SELECT I SEEK 1 I FMTRK DUP
SELECT 0 I FMTRK LOOP DROP ;
3. IRQVEC returns the value for INTVEC.
Redefine the word as:
HEX
: IRQVEC 0040 ;
4. I contains a reference to the development ROM and can not tp be used
in standalone code.
Solution is tu use R instead.
5. NOT contains a refernce to the development ROM an can not to be used
in standalone code.
Solution is to use 0= instead.
6. CREATE has anerror which cause the CFA of a word to straddle
a page boundary, which is an error condition for the 6502 CPU.
Solution is to test suspected word with:
HEX NAME CFA .
and verify that the adress is not "XXFF". If the adress is
"XXFF" the word should be forg#otten and a "1 ALLOT" inserted
before redefinig the word.
RSC-FORTH V1.6
The RSC-FORTH 1.6 corrects the ADMP and FORMAT errors mentioned above in
V1.5. RSC-FORTH V1.6 is implemented in ROM devices for use with either the
R6501Q or R6511Q ROM-less microcomputer. The R65FK3 is the Kernel ROM that
operates in conjunction with the R6501Q or R6511Q and funktions like the
R65F11 or R65F12 FORTH microcomputer (with internal ROM). The F65FR3
Development ROM operates with the R6501Q/R6511Q microcomputer and R65FK3
Kernel ROM in a similar manner as the R65FR1 Development ROM operates with
the R65F11/R65F12 FORTH Microcomputer. The parts are indentified as:
R65FK3 Kernel ROM (R327H-11, 1 or 2 MHz)
and
R65FR3 Development ROM (R2592-11, 1 or 2 MHz)
RSC-FORTH V1.7
RSC-FORTH 1.7 corrrects all the error mentioned above in V1.5
RSC-FORTH 1.7 is implemented in the following parts:
R65F11 FORTH Microcomputer (R1100-15, 1 MHz or R1100-16, 2 MHz)
or
R65F12 FORTH Microcomputer (R1200-13, 1 MHz or R1200-14, 2 MHz)
or
R65FR1 Development ROM (R2592-13, 1 or 2 MHz)
-------------------------------------------------------------------------