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Recommendations for an Eprom Emulator

Started by WYSIWYG November 25, 2005
Hello,

Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down load,
Win2k/XP compatible tools, <40nS access time. What's everyone using out
there? Anything to recommned/Avoid?

Bob


Hello !

"WYSIWYG" <nospam@bye.com> wrote in message 
news:0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net...
> Hello, > > Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down > load, > Win2k/XP compatible tools, <40nS access time. What's everyone using out > there? Anything to recommned/Avoid? > > Bob
What the ? An EPROM emulator ? Now I gotta admit that I've currently dropped off from what you're trying to achieve. As far as I know, emulators are pieces of software that emulate specific devices. From this description, I understand you want an embedded device which has a software code that can act as an EPROM emulator, right ? I don't think any such devices exist, but I'm not absolutely certain.. - Antti Keskinen
On Fri, 25 Nov 2005 20:23:57 +0200, the renowned "Antti Keskinen"
<antti.keskinen@ee.tpu.fi> wrote:

>Hello ! > >"WYSIWYG" <nospam@bye.com> wrote in message >news:0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net... >> Hello, >> >> Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down >> load, >> Win2k/XP compatible tools, <40nS access time. What's everyone using out >> there? Anything to recommned/Avoid? >> >> Bob > >What the ? An EPROM emulator ? Now I gotta admit that I've currently dropped >off from what you're trying to achieve. As far as I know, emulators are >pieces of software that emulate specific devices. From this description, I >understand you want an embedded device which has a software code that can >act as an EPROM emulator, right ? > >I don't think any such devices exist, but I'm not absolutely certain.. > >- Antti Keskinen
EPROM emulators are hardware. They are RAM with some logic, pretending to be an actual EPROM. You download the data into them through another port (such as USB), which is where his Win2K/XP comes in. The target system reads the data as if it was connected to an EPROM, which is where the size and access time specs come in. Here's one from a Taiwan-based company and sold by a UK-based company: http://www.gwmicros.com/public_html/pages/products/iproducts/EPROM_Emulators/Leap_ROM_Emulator/EPROM_Emulator_Leap_WICE-M4.htm (I hope the Denbighshire company knows more about supporting such products than they know about using apostrophes with possessive pronouns). Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
Thanks Chris,

Various CPUs. I like to "repurpose" older electronics I find at my local
surplus shop. I look for boards ideally with socketed EPROMs so I can easily
extract the code and make changes. This started a long time ago with a
Defender video game. I have recently worked with the 6809, 6502, Z80, 8085,
68HC11, HPC46003. The clock rates on these older processors are slow 1-20MHz
so the demands on the EPROM are not so great.

Bob

"Chris Hills" <chris@phaedsys.org> wrote in message
news:xMJ+gkAiD5hDFA45@phaedsys.demon.co.uk...
> In article <0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net>, WYSIWYG > <nospam@bye.com> writes > >Hello, > > > >Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down
load,
> >Win2k/XP compatible tools, <40nS access time. What's everyone using out > >there? Anything to recommned/Avoid? > > > >Bob > > What is the target MCU? > You make find and old second hand ICE for it rather than an EPROM > emulator. > -- > \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ > \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ > /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ > \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ > > >
Antti Keskinen wrote:
> Hello ! > > "WYSIWYG" <nospam@bye.com> wrote in message > news:0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net... > >>Hello, >> >>Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down >>load, >>Win2k/XP compatible tools, <40nS access time. What's everyone using out >>there? Anything to recommned/Avoid? >> >>Bob > > > What the ? An EPROM emulator ? Now I gotta admit that I've currently dropped > off from what you're trying to achieve. As far as I know, emulators are > pieces of software that emulate specific devices. From this description, I > understand you want an embedded device which has a software code that can > act as an EPROM emulator, right ? > > I don't think any such devices exist, but I'm not absolutely certain.. > > - Antti Keskinen
Here is one : http://www.eetools.com/index.cfm?fuseaction=product.display&Product_ID=9 -jg
On Fri, 25 Nov 2005 17:17:48 GMT, "WYSIWYG" <nospam@bye.com> wrote in
comp.arch.embedded:

> Hello, > > Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down load, > Win2k/XP compatible tools, <40nS access time. What's everyone using out > there? Anything to recommned/Avoid? > > Bob
It's been quite a while since I used this type of device, but I was very happy with Tech Tools, www.tech-tools.com. They had inexpensive devices that ran off a parallel port under MS-DOS, Windows 3.1, and Windows 95 (yeah, a long time!). They also provided excellent technical support. I damaged one of their emulators and their policy at the time was to turn it around within a very short time, 24 or 48 hours if I remember correctly. And if you managed to break one through your own fault, if they couldn't economically repair it, they'd sell you a new one for half the price. Of course I can't say if their policies are the same today, or whether they have USB, but I'd recommend you check their web site to see if they fit your needs. -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html comp.lang.c++ http://www.parashift.com/c++-faq-lite/ alt.comp.lang.learn.c-c++ http://www.contrib.andrew.cmu.edu/~ajo/docs/FAQ-acllc.html
In article <dm7ks2$a0q$1@news.cc.tut.fi>, Antti Keskinen
<antti.keskinen@ee.tpu.fi> writes
>Hello ! > >"WYSIWYG" <nospam@bye.com> wrote in message >news:0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net... >> Hello, >> >> Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down >> load, >> Win2k/XP compatible tools, <40nS access time. What's everyone using out >> there? Anything to recommned/Avoid? >> >> Bob > >What the ? An EPROM emulator ? Now I gotta admit that I've currently dropped >off from what you're trying to achieve. As far as I know, emulators are >pieces of software that emulate specific devices.
No. an Emulator (or an ICE) is hardware A simulator is software.
>From this description, I >understand you want an embedded device which has a software code that can >act as an EPROM emulator, right ? >I don't think any such devices exist, but I'm not absolutely certain.. >- Antti Keskinen
An Eprom Emulator is a piece of hardware that was popular in prehistoric times.... about 5 years or so ago and back. This is when Eproms were in DIL packages and took 40 minutes to erase. It was in many ways the JTAG of it's day. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
In article <0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net>, WYSIWYG
<nospam@bye.com> writes
>Hello, > >Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down load, >Win2k/XP compatible tools, <40nS access time. What's everyone using out >there? Anything to recommned/Avoid? > >Bob
What is the target MCU? You make find and old second hand ICE for it rather than an EPROM emulator. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
WYSIWYG wrote:

> Thanks Chris, > > Various CPUs. I like to "repurpose" older electronics I find at my local > surplus shop. I look for boards ideally with socketed EPROMs so I can > easily extract the code and make changes. This started a long time ago > with a Defender video game. I have recently worked with the 6809, 6502, > Z80, 8085, 68HC11, HPC46003. The clock rates on these older processors are > slow 1-20MHz so the demands on the EPROM are not so great. > > Bob
I looked into what one of my favourite Forth Vendor's was selling these days and found that they currently sell the PROME-ICE device. This is a more direct link. http://www.promice.com/ -- ******************************************************************** Paul E. Bennett ....................<email://peb@amleth.demon.co.uk> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/> Mob: +44 (0)7811-639972 Tel: +44 (0)1235-811095 Going Forth Safely ..... EBA. www.electric-boat-association.org.uk.. ********************************************************************
Chris Hills wrote:
> In article <dm7ks2$a0q$1@news.cc.tut.fi>, Antti Keskinen > <antti.keskinen@ee.tpu.fi> writes >> Hello ! >> >> "WYSIWYG" <nospam@bye.com> wrote in message >> news:0HHhf.1260$Zb2.213@newssvr23.news.prodigy.net... >>> Hello, >>> >>> Its time for an EPROM emulator. I would prefer USB, >1MBit, fast down >>> load, >>> Win2k/XP compatible tools, <40nS access time. What's everyone using out >>> there? Anything to recommned/Avoid? >>> >>> Bob >> What the ? An EPROM emulator ? Now I gotta admit that I've currently dropped >> off from what you're trying to achieve. As far as I know, emulators are >> pieces of software that emulate specific devices. > > No. an Emulator (or an ICE) is hardware > A simulator is software. > >>From this description, I >> understand you want an embedded device which has a software code that can >> act as an EPROM emulator, right ? >> I don't think any such devices exist, but I'm not absolutely certain.. >> - Antti Keskinen > > An Eprom Emulator is a piece of hardware that was popular in prehistoric > times.... about 5 years or so ago and back. This is when Eproms were in > DIL packages and took 40 minutes to erase. > > It was in many ways the JTAG of it's day. >
Although I used our real HPC emulator on occasion (until it died), I did a great deal of my HPC testing and debugging using a row of DIL eeproms and a UV erasor. Since I only ever need to make minor changes to old HPC programs these days, I use trial-and-error with that most oxymoronic of devices - the OTP EPROM.