Programmer for HC705P6A

[EnigmaPaul]

Hi Guys,

I am using a lot of old HC705P6A devices but my programmer died and
its not available any longer. Does anyone have, or know where I can
get a cost effective programmer for this microcontroller?

Thanks,

Paul

 

[John Fields]

Hi Guys,

I am using a lot of old HC705P6A devices but my programmer died and
its not available any longer. Does anyone have, or know where I can
get a cost effective programmer for this microcontroller?

---
Depends on what you consider cost-effective, but here's a start:

http://www.google.com/search?hl=en&q=MC68HC705P6A+programmer&btnG=Search

There's also a pretty good definition of the programming algorithm
in the data book, so if push comes to shove and you have to build
one, and you don't have the data book, it's here:

http://www.freescale.com/webapp/sps...d=01624684498633&fpsp=1&tab=Documentation_Tab

as is:

AN499 Let the MC68HC705 Program Itself.

 

[Jim Granville]

Hi Guys,

I am using a lot of old HC705P6A devices but my programmer died and
its not available any longer. Does anyone have, or know where I can
get a cost effective programmer for this microcontroller?

It's on the menu of my eetools ChipMAX2.
-jg

 

[Piglit]

Hi Guys,

I am using a lot of old HC705P6A devices but my programmer died and
its not available any longer. Does anyone have, or know where I can
get a cost effective programmer for this microcontroller?

Thanks,

Paul

A Needhams EMP20 (with a #9 family board) will do it, and these are
fairly
cheap on the secondhand market (Ebay etc).
M

 

[EnigmaPaul]

Thanks,

Does anyone know where I might find an EMP20 programmer and adapter? I
looked on ebay and there is none there now.

Cheers,

Paul

 

[John Fields]

Thanks,

Does anyone know where I might find an EMP20 programmer and adapter? I
looked on ebay and there is none there now.

---
???

http://cgi.ebay.com/Needhams-EMP-20-Device-Programmer_W0QQitemZ300170129493QQcmdZViewItem

Also, from:

http://groups.google.com/support/bin/answer.py?answer=12348&topic=250

"Summarize what you're following up.

When you click "Reply" under "show options" to follow up an existing
article, Google Groups includes the full article in quotes, with the
cursor at the top of the article. Tempting though it is to just
start
typing your message, please STOP and do two things first.
Look at the quoted text and remove parts that are irrelevant.
Then, go to the BOTTOM of the article and start typing there.
Doing this makes it much easier for your readers to get through your
post. They'll have a reminder of the relevant text before your
comment, but won't have to re-read the entire article.
And if your reply appears on a site before the original article
does,
they'll get the gist of what you're talking about."

 

[CBFalconer]

EnigmaPaul wrote: ** and top-posted. Fixed **

Does anyone know where I might find an EMP20 programmer and
adapter? I looked on ebay and there is none there now.

Ebay is not a fixed menu. Keep looking.

Please do not top-post. Your answer belongs after (or intermixed
with) the quoted material to which you reply, after snipping all
irrelevant material. I fixed this one. See the following links:

--
<http://www.catb.org/~esr/faqs/smart-questions.html>
<http://www.caliburn.nl/topposting.html>
<http://www.netmeister.org/news/learn2quote.html>
<http://cfaj.freeshell.org/google/> (taming google)
<http://members.fortunecity.com/nnqweb/> (newusers)

 

[JosephKK]

EnigmaPaul [email protected] posted to sci.electronics.design:

Thanks,

Does anyone know where I might find an EMP20 programmer and adapter?
I looked on ebay and there is none there now.

Cheers,

Paul

I suppose that you could go to the vendor Needham's Electronics.

 

[John Fields]

EnigmaPaul [email protected] posted to sci.electronics.design:


I suppose that you could go to the vendor Needham's Electronics.

 

[Piglit]

They still sell the family boards and have downloads for the software.
The OP wants cheap. If that constraint was not there, Needhams sell
the successor device, the EMP30 which I'm sure is up to the job.
Needhams are an impressive company - when I bought an EMP20
(around 15 years ago) and found a chip that it wouldn't burn, I
contacted
them and a few days later they sent me revised software. If you phone
them you get someone who KNOWS what you are talking about. *RARE*
M

 

[Rafael Deliano]

I am using a lot of old HC705P6A devices but my programmer died and

its not available any longer. Does anyone have, or know where I can
get a cost effective programmer for this microcontroller?

Datasheet 1996, chapter 10:
they have a circuit 68HC705P6A + 2764 EPROM + 74HC4040 Counter
that boots from the master-2764.
It does program/verify or only verify.
Using several manual switches its awkward and certainly not intended
for production. But with relays and some external controller one could
get it more comfortable.

MfG JRD