On Tue, Mar 14, 2023 at 7:15 PM Fred Cisin via cctalk
wrote:
> On 3/14/2023 3:03 AM, Curious Marc via cctalk wrote:
> > The cafeteria is open, there is a Starbucks and even a nice Italian
> across
> > the street if you want to treat yourself. On Wednesdays we have a demo
> of
> > the IBM 1401 at
Awesome. Thank you! I will be there tomorrow Wednesday.
Regards,
Tarek Hoteit
> On Mar 14, 2023, at 12:03 AM, Curious Marc wrote:
>
> The cafeteria is open, there is a Starbucks and even a nice Italian across
> the street if you want to treat yourself. On Wednesdays we have a demo of the
>
I am working on an unknown status Persci 299 drive and one of the two
drives is locked closed. Is this a "park" of some kind or is the drive
broken? If it's a parked drive (only the drive 0 side) how do you unpark
the drive? I can't seem to find any info on this. If I find anything I
will post
Be careful about throwing stones if you are living in a glass house.
On Tue, 14 Mar 2023, 6:49 pm Peter Coghlan via cctalk, <
cctalk@classiccmp.org> wrote:
> >
> > There are some nice mixed signal oscilloscopes made by Rigol (Chinese)
> at a
> > very affordable price.
> >
>
> Until just over a
> If you posted your design as Open Source, someone else producing it isn't a
> knockoff, it's the system working as intended.
What is it when the design is open source, but they're not complying with the
terms of the license? That's what really bugs me, the "cost" of producing your
own from
On 3/14/2023 8:26 PM, Chris Hanson via cctalk wrote:
If you posted your design as Open Source, someone else producing it isn't a
knockoff, it's the system working as intended.
-- Chris
Yep, naive on my part. I would counter that if I had just published my
designs online with a commercial
On 3/14/2023 3:03 AM, Curious Marc via cctalk wrote:
The cafeteria is open, there is a Starbucks and even a nice Italian across
the street if you want to treat yourself. On Wednesdays we have a demo of
the IBM 1401 at 3 pm, and before that the restoration team works on it from
10:30 am on (it
On Mar 14, 2023, at 2:55 PM, Jim Brain via cctalk wrote:
>
> On 3/14/2023 4:16 PM, Jonathan Chapman wrote:
>> There are other things that we've chosen not to run for the same basic
>> reason, and others that won't get open sourced.
>
> I will admit I am trending in that direction. I put
On 3/14/2023 4:48 PM, Alexander Huemer via cctalk wrote:
* The main IC in a 16 channel Saleae LA is a Xilinx Spartan 6,
The clones are of the older pre 2015 Cypress FX2 design, which was not
easy to protect. I don't see any eBay listings for the newer stuff in
clone format. I do see
On 14 Mar 2023, at 23:23, Chuck Guzis via cctalk wrote:
>
> On 3/14/23 14:48, Alexander Huemer via cctalk wrote:
>
>> Let's face it, there is a sizable number of people who will never ever
>> buy a logic analyzer for north of $1000. Either because they can't
>> afford it or are too greedy.
On 3/14/2023 3:03 AM, Curious Marc via cctalk wrote:
The cafeteria is open, there is a Starbucks and even a nice Italian across the
street if you want to treat yourself. On Wednesdays we have a demo of the IBM
1401 at 3 pm, and before that the restoration team works on it from 10:30 am on
On 3/14/23 14:48, Alexander Huemer via cctalk wrote:
> Let's face it, there is a sizable number of people who will never ever
> buy a logic analyzer for north of $1000. Either because they can't
> afford it or are too greedy. That is not lost revenue for the company.
> Either those people buy
On 3/14/2023 4:16 PM, Jonathan Chapman wrote:
There are other things that we've chosen not to run for the same basic
reason, and others that won't get open sourced.
I will admit I am trending in that direction. I put things as FLOSS
because I wanted the designs to outlast my involvement
On Tue, Mar 14, 2023 at 09:16:02PM +, Jonathan Chapman via cctalk wrote:
> > But, as some who worked
> > to bring a product to market only to see people on forums say "Skip
> > buying it from Jim for , you can build the same thing by yourself
> > for $ from AliExpress parts or buy this
On Tue, Mar 14, 2023 at 10:32:15AM +0800, Tom Hunter wrote:
> There are some nice mixed signal oscilloscopes made by Rigol (Chinese) at a
> very affordable price. They have a very deep capture buffer for both analog
> and digital signals. The build quality and capabilities of the MSO1104Z I
> have
> But, as some who worked
> to bring a product to market only to see people on forums say "Skip
> buying it from Jim for , you can build the same thing by yourself
> for $ from AliExpress parts or buy this eBay knockoff for 2X$", I will
> admit that is somewhat infuriating. If the hobby
That is a good question. I seem to recall that when it was compiled for
Next hardware that it used the DSP by default, but when compiled for
other platforms it used their libraries. My guess is the Intel library
used floating point.
It fits in with other narratives about the Pentium chip, one
On 3/14/2023 1:00 PM, Jonathan Chapman via cctalk wrote:
On HP: yes, perhaps. I used one of those back at DEC, in the mid 1980s. Nice
machine, but my suspicion is that I'd run into the small memory problem again
that plagues me with the Philips/Fluke analyzer I use right now.
We use several
Chris,
one question on the conclusion: was the Mandelbrot program set to use floating
point, or fixed-point arithmetic? I’m pretty sure the DSP version was
fixed-point (integer, scaled) arithmetic to make it run faster. The conclusion
might apply to the Pentium’s performance in integer tasks
> On Mar 14, 2023, at 2:00 PM, Jonathan Chapman via cctalk
> wrote:
>
>> On HP: yes, perhaps. I used one of those back at DEC, in the mid 1980s. Nice
>> machine, but my suspicion is that I'd run into the small memory problem
>> again that plagues me with the Philips/Fluke analyzer I use
> On HP: yes, perhaps. I used one of those back at DEC, in the mid 1980s. Nice
> machine, but my suspicion is that I'd run into the small memory problem again
> that plagues me with the Philips/Fluke analyzer I use right now.
We use several HP analyzers around here, all from the 80s. Even the
Yes, I've used sigrok and sat on their IRC channel for quite a while.
I've used the gpib analyser and extended a DMM driver to cover the hp34401A.
The logic analyser client is probably the best application and is
comparable with Saleae's own client. The streaming cli clients are also
good, but I
> On Mar 14, 2023, at 1:38 AM, Steve Lewis via cctalk
> wrote:
>
> ...
> Anyway, as an option slightly cheaper than the Saleae, I'm trying the
> 32-channel version of the DreamSourceLab U3Pro32. It's not horrible, I've
> 24 pins hooked up so far. I debated on if 2x16's would be better.
>
I also use the pctestinstruments. One of its strong points is that it plays
well with virtualbox - I run it in a W7 guest on my centos desktop. The buffer
depth is usually a bit limiting though, and triggering is also somewhat basic.
Another option that I haven't seen mentioned: use the
>
> There are some nice mixed signal oscilloscopes made by Rigol (Chinese) at a
> very affordable price.
>
Until just over a year ago, buying very afforadable Russian oil and gas also
seemed like a great idea with no downsides compared to getting these products
elsewhere.
Regards,
Peter Coghlan.
On Tue, 14 Mar 2023, Steve Lewis wrote:
I'm probing two DB25 connectors on the old IBM 5110 to figure out how to
programmatically jiggle some pins and get some serial IO going.I've
This is easy since it is an I/O bus. The instructions are GETB, PUTB, STAT
and CTRL. In any case the
On Mon, Mar 13, 2023 at 08:28:35PM -0500, Jim Brain via cctalk wrote:
> On 3/13/2023 8:12 PM, Paul Koning via cctalk wrote:
> > Gents,
> >
> > I've been doing logic debugging (on a fairly primitive software defined
> > radio I designed back in 1999) with an old Philips logic analyzer. It's
> >
Paul
Some options for consideration, not all meeting your specific requirement
https://www.pctestinstruments.com/index.asp 34b wide, sync (200 MS/s) or async
(500 MS/s) operation, fights with Win11 - driver upgrade required
Had one for ~15 years, now has a few dead channels, merits
The cafeteria is open, there is a Starbucks and even a nice Italian across the
street if you want to treat yourself. On Wednesdays we have a demo of the IBM
1401 at 3 pm, and before that the restoration team works on it from 10:30 am on
(it needs constant maintenance and repairs to keep it
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