14 Mar
2023
14 Mar
'23
12:32 p.m.
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 built-in logic analyzers that
the fpga tool chains come with - you'd have to wire up an fpga and sample the signals
you need, but all the complexity of triggering, buffering and displaying would be done by
the tool chain.
--
Sytse
On 14 Mar 2023, at 08:50, Martin Bishop via cctalk
<cctalk(a)classiccmp.org> wrote:
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 consideration
https://telonic.co.uk/product/siglent-sds1104x-e-4ch-100mhz-1gsa-s-super-ph…
https://telonic.co.uk/product/siglent-sla1016-mixed-signal-option/
https://telonic.co.uk/product/siglent-sds1000x-e-16la/
4 ch CRO + 16 ch digits : OK as a basic scope and logic capture device
My standard CRO these past few years, rarely used above 4 + 8 configuration
"100 MHz" means this is not a signal characterisation scope - definitely
challenged above 50 MHz
Note Based on bench experience I dont rate the equivalent Rigol boxes, e.g. DS1074, the
GUI is challenged and the HCI processor very sluggish. The Siglent is much more
responsive and rather less clunky to drive.
https://digilent.com/shop/digital-discovery-portable-usb-logic-analyzer-and…
32 ch at 200 MS/s and pleasantly inexpensive
If I was buying, I would consider trying one
Martin
From: Paul Koning via cctalk [mailto:cctalk@classiccmp.org]
Sent: 14 March 2023 01:13
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 not bad, certainly
fast enough (I need 100 Msamples/s, it can do twice that) and it's more than wide
enough (I need 32 channels). But its capture memory is microscopic so I struggle to see
more than one or two transactions, and I need to see more than that.
Some poking around shows various USB-connected logic analyzers for quite low prices, and
a number of them seem to have suitable specs. I also ran across sigrok.org which seems to
be an open source logic analysis framework that can drive a bunch of those devices. Nice
given that too many of them only come with Windows software.
I suspect there are others that have not too expensive logic analyzers and might be able
to offer up suggestions or product reviews.
paul