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Another EPROM question.
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et...@whidbey.com
Mar 31, 2017, 1:26:00 PM3/31/17
to
I would like to read what is in the old EPROMs in my machine. They
contain the ladder programming for the machine. I cannot get a copy of
this ladder from Miyano, who made the lathe and wrote the ladder. Is
there a way to read what is programmed in these EPROMs? I guess I
should ask if there is a way I can read what is in them. I know what a
ladder looks like and can read one but I don't know if one can be read
from a device just by downloading and using a text reader to see what
is there.
Eric
contain the ladder programming for the machine. I cannot get a copy of
this ladder from Miyano, who made the lathe and wrote the ladder. Is
there a way to read what is programmed in these EPROMs? I guess I
should ask if there is a way I can read what is in them. I know what a
ladder looks like and can read one but I don't know if one can be read
from a device just by downloading and using a text reader to see what
is there.
Eric
Ralph Mowery
Mar 31, 2017, 1:35:55 PM3/31/17
to
In article <fa4tdc53qq04k2jcp...@4ax.com>,
et...@whidbey.com says...
It would be doubtful if you could. The eprom will give a bunch of
hexidecimal numbers. You would need a program that could convert that
to the ladder.
et...@whidbey.com says...
hexidecimal numbers. You would need a program that could convert that
to the ladder.
John Robertson
Mar 31, 2017, 2:07:22 PM3/31/17
to
to learn or find a code disassembler. Not for the faint of heart!
If there is a service shop like mine in your area and they have classic
tools such as a Fluke 9010 or 9100 then they can read the EPROM(s) by
simply pulling the CPU and exercising the motherboard under proper power.
Probably...
John :-#)#
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
et...@whidbey.com
Mar 31, 2017, 8:23:10 PM3/31/17
to
EPROMs and provide me with a ladder printout if I send the devices to
them.
Eric
et...@whidbey.com
Mar 31, 2017, 8:29:42 PM3/31/17
to
On Fri, 31 Mar 2017 11:07:16 -0700, John Robertson <sp...@flippers.com>
wrote:
>On 2017/03/31 10:35 AM, Ralph Mowery wrote:
>> In article <fa4tdc53qq04k2jcp...@4ax.com>,
>> et...@whidbey.com says...
>>>
>>> I would like to read what is in the old EPROMs in my machine. They
>>> contain the ladder programming for the machine. I cannot get a copy of
>>> this ladder from Miyano, who made the lathe and wrote the ladder. Is
>>> there a way to read what is programmed in these EPROMs? I guess I
>>> should ask if there is a way I can read what is in them. I know what a
>>> ladder looks like and can read one but I don't know if one can be read
>>> from a device just by downloading and using a text reader to see what
>>> is there.
>>> Eric
>>
>> It would be doubtful if you could. The eprom will give a bunch of
>> hexidecimal numbers. You would need a program that could convert that
>> to the ladder.
>>
>>
>
>Not to mention there is likely CPU operating code which you would need
>to learn or find a code disassembler. Not for the faint of heart!
>
>If there is a service shop like mine in your area and they have classic
>tools such as a Fluke 9010 or 9100 then they can read the EPROM(s) by
>simply pulling the CPU and exercising the motherboard under proper power.
>
>Probably...
>
>John :-#)#
The whole problem is that there is only one company in the Puget Sound
area that I could find that can work on my machine. There used to be
several but so many shops went out of business because of Boeing
boom/bust cycles that CNC services companies also went out of
business. And since I'm on an island that makes service calls even
harder to get.
Eric
wrote:
>On 2017/03/31 10:35 AM, Ralph Mowery wrote:
>> In article <fa4tdc53qq04k2jcp...@4ax.com>,
>> et...@whidbey.com says...
>>>
>>> I would like to read what is in the old EPROMs in my machine. They
>>> contain the ladder programming for the machine. I cannot get a copy of
>>> this ladder from Miyano, who made the lathe and wrote the ladder. Is
>>> there a way to read what is programmed in these EPROMs? I guess I
>>> should ask if there is a way I can read what is in them. I know what a
>>> ladder looks like and can read one but I don't know if one can be read
>>> from a device just by downloading and using a text reader to see what
>>> is there.
>>> Eric
>>
>> It would be doubtful if you could. The eprom will give a bunch of
>> hexidecimal numbers. You would need a program that could convert that
>> to the ladder.
>>
>>
>
>Not to mention there is likely CPU operating code which you would need
>to learn or find a code disassembler. Not for the faint of heart!
>
>If there is a service shop like mine in your area and they have classic
>tools such as a Fluke 9010 or 9100 then they can read the EPROM(s) by
>simply pulling the CPU and exercising the motherboard under proper power.
>
>Probably...
>
>John :-#)#
area that I could find that can work on my machine. There used to be
several but so many shops went out of business because of Boeing
boom/bust cycles that CNC services companies also went out of
business. And since I'm on an island that makes service calls even
harder to get.
Eric
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