: cctalk on behalf of Chuck Guzis via
cctalk
Sent: Tuesday, February 6, 2018 7:28:38 AM
To: Tor Arntsen via cctalk
Subject: Re: [RESOLVED] Re: EPROM baking
On 02/06/2018 12:05 AM, Tor Arntsen via cctalk wrote:
> .. which led me to accidentally power a USB hub with 12V instead of
> 5V - the
On Mon, Feb 05, 2018 at 11:06:29AM -0800, Chuck Guzis via cctalk wrote:
> On 02/05/2018 10:20 AM, Mark G Thomas via cctalk wrote:
>
> > 2) Many of the chips were failing to program because my Batronix
> >programmer apparently requires more current than my USB port provides.
> >This surpr
On 02/06/2018 12:05 AM, Tor Arntsen via cctalk wrote:
> .. which led me to accidentally power a USB hub with 12V instead of
> 5V - the power supplies looked the same, had the same plug, and I
> couldn't read the tiny writing on the warts. That blew the nicest
> notebook PC I've ever found - I bo
On 5 February 2018 at 20:06, Chuck Guzis via cctalk
wrote:
> I have a similar gripe with barrel connectors,
> which don't seem to enforce any standard at all regarding polarity or AC
> vs. DC.
.. which led me to accidentally power a USB hub with 12V instead of 5V
- the power supplies looked the s
On Mon, Feb 5, 2018 at 12:06 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> You should be aware that many "thin" Far East USB cables will not pass
> the full USB 1.5A current without substantial voltage drop.
>
"Full USB current" is only 0.5A for USB 2, and 0.9A for USB 3. Any USB
d
On 02/05/2018 01:02 PM, Bill Degnan via cctalk wrote:
> I was going to say...I would not have thought any USB-powered prom
> programmer to be the best solution. I have two programmers both have their
> own wall power connectors and they're reliable. I am not saying that it
> would not be possibl
On 2018-02-05 8:00 PM, Chuck Guzis via cctalk wrote:
On 02/05/2018 01:02 PM, Bill Degnan via cctalk wrote:
I was going to say...I would not have thought any USB-powered prom
programmer to be the best solution. I have two programmers both have their
own wall power connectors and they're relia
>
>
>
> On 02/05/2018 02:06 PM, Chuck Guzis via cctalk wrote:
> > On 02/05/2018 10:20 AM, Mark G Thomas via cctalk wrote:
> >
> >> 2) Many of the chips were failing to program because my Batronix
> >> programmer apparently requires more current than my USB port
> provides.
> >> This surpris
My EPROM Programmers all have a connection foir external power
specifically because sometimes USB can't provide the needed current.
bill
On 02/05/2018 02:06 PM, Chuck Guzis via cctalk wrote:
> On 02/05/2018 10:20 AM, Mark G Thomas via cctalk wrote:
>
>> 2) Many of the chips were failing to pro
On 02/05/2018 10:20 AM, Mark G Thomas via cctalk wrote:
> 2) Many of the chips were failing to program because my Batronix
>programmer apparently requires more current than my USB port provides.
>This surprised me because I have been programming chips for years
>using this programme
Hi,
Please see resolution below, if you are curious about how this turned out.
On Wed, Dec 20, 2017 at 09:18:50PM -0500, Mark G Thomas via cctalk wrote:
> Hi,
>
> > On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
> > cctalk@classiccmp.org> wrote:
> >
> > > Hi,
> > >
> > > I am worki
All chips should have windows.
On Sat, Dec 23, 2017 at 11:04 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 12/23/2017 08:47 PM, Ethan Dicks via cctalk wrote:
>
> > I did that once and had the same experience - a glow from under the
> > lid, but no smoke... and put right-way-roun
On 12/23/2017 08:47 PM, Ethan Dicks via cctalk wrote:
> I did that once and had the same experience - a glow from under the
> lid, but no smoke... and put right-way-round, was still programmable
> and verifiable.
Well, that's one way to "bake" an EPROM!
--Chuck
On Sat, Dec 23, 2017 at 12:04 PM, Jon Elson via cctalk
wrote:
> I made my own 2716-2764 programmer MANY years ago. On a few occasions I put
> an EPROM in wrong and saw the bonding wires light up! I killed power and
> corrected the mistake, and the EPROM worked fine.
I did that once and had the
On 12/23/2017 10:00 AM, dwight via cctalk wrote:
When I had access to a wire bonder, we took EPROMs that had been plugged in
upside down and removed the lids. We'd see a blown wire and replace it.
On several of these parts we found that 100% worked. So it would seem that no
silicon damage was
t: Re: EPROM baking
I see the same things. Some chips just won't reprogram. Symptoms include
failure to program just like you, but also "chip backwards" errors. Can't
remember the chip brands, I just toss them out when that happens. I have not
found any way to resuscitate them
I see the same things. Some chips just won't reprogram. Symptoms include
failure to program just like you, but also "chip backwards" errors. Can't
remember the chip brands, I just toss them out when that happens. I have not
found any way to resuscitate them. Maybe ~10% of the chips I tried had t
AM
To: Mark G Thomas; General Discussion: On-Topic Posts
Cc: cctalk@classiccmp.org
Subject: Re: EPROM baking
> Hi,
>
>> On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
>> cctalk@classiccmp.org> wrote:
>>
>> > Hi,
>> >
>> > I am w
> Hi,
>
>> On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
>> cctalk@classiccmp.org> wrote:
>>
>> > Hi,
>> >
>> > I am working on several projects requiring 2708 and 2716 EPROMs, and
>> > am finding some of my chips will not erase, and some will not take
>> > a program. I've also learne
Hi,
> On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
> cctalk@classiccmp.org> wrote:
>
> > Hi,
> >
> > I am working on several projects requiring 2708 and 2716 EPROMs, and
> > am finding some of my chips will not erase, and some will not take
> > a program. I've also learned more in
tched to EEPROMs. I would also be
>> interested in hearing about whether or not baking would work and how to do
>> the baking, exactly. I have a bunch of old EPROMs, that I figured were
>> dead, but maybe not? Mike Zahorik
>>
>>
>> From: Holm Tiffe via cc
sted in hearing about whether or not baking would work and how to do
> the baking, exactly. I have a bunch of old EPROMs, that I figured were
> dead, but maybe not? Mike Zahorik
>
>
> From: Holm Tiffe via cctalk
> To: dwight via cctalk
> Sent: Wednesday, Decembe
baking, exactly. I
have a bunch of old EPROMs, that I figured were dead, but maybe not? Mike
Zahorik
From: Holm Tiffe via cctalk
To: dwight via cctalk
Sent: Wednesday, December 13, 2017 9:17 AM
Subject: Re: EPROM baking
Hmm..I've read about that baking in conjunction with
-Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mark G
> Thomas via cctalk
> Sent: 13 December 2017 14:09
> To: CCtalk
> Subject: EPROM baking
>
> Hi,
>
> I am working on several projects requiring 2708 and 2716 EPROMs, and am
> finding some of my c
Sent: Wednesday, December 13, 2017 6:18:16 AM
> To: Mark G Thomas; General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: EPROM baking
>
> On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
> cctalk@classiccmp.org> wrote:
>
> > Hi,
> >
> >
18:16 AM
To: Mark G Thomas; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: EPROM baking
On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
cctalk@classiccmp.org> wrote:
> Hi,
>
> I am working on several projects requiring 2708 and 2716 EPROMs, and
> am f
On Wed, Dec 13, 2017 at 9:08 AM, Mark G Thomas via cctalk <
cctalk@classiccmp.org> wrote:
> Hi,
>
> I am working on several projects requiring 2708 and 2716 EPROMs, and
> am finding some of my chips will not erase, and some will not take
> a program. I've also learned more in the past week than I
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