WTB: Heathkit ID-4801 EPROM Programmer

[Rich Grise]

On Thu, 28 Oct 2010 09:56:52 -0400, Michael A. Terrell wrote:

Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi" <TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

Look who's talking. I'll bet you hit the local food bank quite
often.

What's with this personal hardon for me? Am I really _that_ important to
you?

Thanks,
Rich

 

[Rich Grise]

On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:

On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?

Thanks,
Rich

 

[TXMarsh]

F. Bertolazzi - I have found a source for the old parallax eprom
emulator software. I won't mention anything about "buying" on here
but please send me an email if you would still be willing to part with
one or more of them. I've tried sending you email but it keeps
bouncing.

Thanks!
Tim
tim at utlaw dot net

 

[Michael A. Terrell]

Rich Grise wrote:

On Thu, 28 Oct 2010 09:56:52 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi" <TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

Look who's talking. I'll bet you hit the local food bank quite
often.

What's with this personal hardon for me? Am I really _that_ important to
you?

You overestimate your value to anyone, including me. I don't care if
you drop dead.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[Rich Grise]

On Thu, 28 Oct 2010 19:29:02 -0400, Michael A. Terrell wrote:

Rich Grise wrote:
On Thu, 28 Oct 2010 09:56:52 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi" <TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

Look who's talking. I'll bet you hit the local food bank quite
often.

What's with this personal hardon for me? Am I really _that_ important to
you?

You overestimate your value to anyone, including me. I don't care if
you drop dead.

For someone who doesn't care, you certainly do put a lot of energy into
trying to insult me.

Oh, well. Hatred has no effect on the hated one, but eats up the one doing
the hating.

Good Luck!
RIch

 

[Michael A. Terrell]

Rich Grise wrote:

On Thu, 28 Oct 2010 19:29:02 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Thu, 28 Oct 2010 09:56:52 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi" <TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

Look who's talking. I'll bet you hit the local food bank quite
often.

What's with this personal hardon for me? Am I really _that_ important to
you?

You overestimate your value to anyone, including me. I don't care if
you drop dead.

For someone who doesn't care, you certainly do put a lot of energy into
trying to insult me.

Oh, well. Hatred has no effect on the hated one, but eats up the one doing
the hating.

Then drop it, for your own good.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[David Brown]

On 28/10/2010 19:22, Rich Grise wrote:

On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:
On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?

I know that's what you meant - maybe I wasn't clear. Some memory bank
switching is evil, but some is just incompetent.

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.

It's always the risk when someone cross-posts to c.a.e. and s.e.b (or
s.e.d - don't know much about a.f.c), as they have such a very different
atmosphere and community.

 

[Jasen Betts]

On 2010-10-26, Rich Grise <richgrise@example.net> wrote:

On Tue, 26 Oct 2010 16:53:13 +0100, Ahem A Rivet's Shot wrote:
Morten Reistad <first@last.name> wrote:
F. Bertolazzi <TOGLIeset@MAIUSCOLEtdd.it> wrote:
TXMarsh:

I haven't found any other simulators that support the older 2716 and
2732 eproms... heck, it isn't easy finding any simulators these
days.

I built a number of those. 4 x 2116 stacked on top with three pins
bent out, a 74H138 to demux the next bits + enable, a 7404 and a switch
to set rw/ro mode, and a little 6V alkaline battery assebly and a diode
with 0.85V drop to feed it while not connected to power, all assembled
into a DIP cradle.

These days you could probably add a set of ports to a PC, wire them
to a DIP plug and emulate the EPROM in software complete with the timing
characteristics.

Not in Windows, you won't. Maybe DOS, or Linux in single-user mode.

linux single user mode is just an administrative convenience.
so probably not.

dos maybe, if the DRAM refresh, clock interrupt, etc...
don't cause problems.

--
ɹǝpun uʍop ɯoɹɟ sƃuıʇǝǝɹ⅁

 

[Michael A. Terrell]

David Brown wrote:

On 28/10/2010 19:22, Rich Grise wrote:
On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:
On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?


I know that's what you meant - maybe I wasn't clear. Some memory bank
switching is evil, but some is just incompetent.

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.

Some people have no sense of humor.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[jmfbahciv]

Michael A. Terrell wrote:

Rich Grise wrote:

<snip dick war disintegraion>

If you really want to impress us (a.f.c), the first one
who can zero all of memory will win.

/BAH

 

[jmfbahciv]

David Brown wrote:

On 28/10/2010 19:22, Rich Grise wrote:
On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:
On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down
the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and
in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?


I know that's what you meant - maybe I wasn't clear. Some memory bank
switching is evil, but some is just incompetent.

You can always interleave memory.

<snip>

/BAH

 

[Joe Pfeiffer]

"Michael A. Terrell" <mike.terrell@earthlink.net> writes:

David Brown wrote:

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.


Some people have no sense of humor.

Your obnoxious remarks are intended as humor? Wow.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)

 

[Scott Lurndal]

Jasen Betts <jasen@xnet.co.nz> writes:

On 2010-10-26, Rich Grise <richgrise@example.net> wrote:
On Tue, 26 Oct 2010 16:53:13 +0100, Ahem A Rivet's Shot wrote:
Morten Reistad <first@last.name> wrote:
F. Bertolazzi <TOGLIeset@MAIUSCOLEtdd.it> wrote:
TXMarsh:

I haven't found any other simulators that support the older 2716 and
2732 eproms... heck, it isn't easy finding any simulators these
days.

I built a number of those. 4 x 2116 stacked on top with three pins
bent out, a 74H138 to demux the next bits + enable, a 7404 and a switch
to set rw/ro mode, and a little 6V alkaline battery assebly and a diode
with 0.85V drop to feed it while not connected to power, all assembled
into a DIP cradle.

These days you could probably add a set of ports to a PC, wire them
to a DIP plug and emulate the EPROM in software complete with the timing
characteristics.

Not in Windows, you won't. Maybe DOS, or Linux in single-user mode.

linux single user mode is just an administrative convenience.
so probably not.

dos maybe, if the DRAM refresh, clock interrupt, etc...
don't cause problems.

DRAM refresh is only an issue on a 8086,8088, 80186 or 80286. Modern
systems don't involve the interrupt subsystem in DRAM operations (other
than to signal corrected events (such as Intel's CMCI or AMD's equivalent).

There are several modern real-time capable code bases such as VxWorks
or WindRiver that can be licensed and would support EPROM emulation
on an x86 based system.

scott

 

[Vladimir Vassilevsky]

Scott Lurndal wrote:

DRAM refresh is only an issue on a 8086,8088, 80186 or 80286.

Huh? DRAM refresh is the issue whenever a DRAM is involved.

Modern
systems don't involve the interrupt subsystem in DRAM operations

Neither PC/XT or PC/AT did. On original PCs, the refresh was
accomplished by DMA channel. In our days, refresh is the function of the
north bridge and it indeed creates random access latencies.

(other
than to signal corrected events (such as Intel's CMCI or AMD's equivalent).

WTF are you talking about?

There are several modern real-time capable code bases such as VxWorks
or WindRiver that can be licensed and would support EPROM emulation
on an x86 based system.

Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com

 

[Michael A. Terrell]

Joe Pfeiffer wrote:

"Michael A. Terrell" <mike.terrell@earthlink.net> writes:

David Brown wrote:

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.


Some people have no sense of humor.

Your obnoxious remarks are intended as humor? Wow.

What were yours intended as?


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[krw@att.bizzzzzzzzzzzz]

On Fri, 29 Oct 2010 05:32:00 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:

David Brown wrote:

On 28/10/2010 19:22, Rich Grise wrote:
On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:
On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?


I know that's what you meant - maybe I wasn't clear. Some memory bank
switching is evil, but some is just incompetent.

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.


Some people have no sense of humor.

Humor requires a brain.

 

[Michael A. Terrell]

"krw@att.bizzzzzzzzzzzz" wrote:

On Fri, 29 Oct 2010 05:32:00 -0400, "Michael A. Terrell"
mike.terrell@earthlink.net> wrote:


David Brown wrote:

On 28/10/2010 19:22, Rich Grise wrote:
On Thu, 28 Oct 2010 10:12:11 +0200, David Brown wrote:
On 28/10/2010 07:47, Rich Grise wrote:
On Wed, 27 Oct 2010 19:40:03 -0400, Michael A. Terrell wrote:
Rich Grise wrote:
On Wed, 27 Oct 2010 10:37:30 -0600, Joe Pfeiffer wrote:
"F. Bertolazzi"<TOGLIeset@MAIUSCOLEtdd.it> writes:
Joe Pfeiffer:

No, I haven't -- I don't quite remember why I wound up going down the
PIC path....

I did because, at the time, were the best ones in their class.
But with AVRs it's a completely different life, both in assembly and in C.

How is the AVR programmed? PIC's in-circuit programming (three pins
plus power and ground need to come to some standard male header strip)
is really convenient.

But bank switching is Evil. ;-)

Not always. Some banks are evil, others are just incompetent.

Memory banks, you nincompoop.

On the PIC, the same thing applies to memory banks...

Yes, that's what I was talking about in the first place. Geez, doesn't
anybody pay any attention any more?


I know that's what you meant - maybe I wasn't clear. Some memory bank
switching is evil, but some is just incompetent.

As for Michael A. Terrell's comments - well, I guess you've come across
him often enough in the sci.electronics groups and know how seriously to
treat him.


Some people have no sense of humor.

Humor requires a brain.

It's no wonder they call that group 'Folklore'. AKA: Lies no one
will bother to expose.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[F. Bertolazzi]

krw@att.bizzzzzzzzzzzz:

Humor requires a brain.

For quoting decently half a brain would suffice.

 

[Michael A. Terrell]

"F. Bertolazzi" wrote:

krw@att.bizzzzzzzzzzzz:

Humor requires a brain.

For quoting decently half a brain would suffice.

No, it doesn't. There are a lot of posters with half a brain, and
they are destroying Usenet.


--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

 

[krw@att.bizzzzzzzzzzzz]

On Sat, 30 Oct 2010 02:05:24 +0200, "F. Bertolazzi"
<TOGLIeset@MAIUSCOLEtdd.it> wrote:

krw@att.bizzzzzzzzzzzz:

Humor requires a brain.

For quoting decently half a brain would suffice.

You certainly don't qualify.