Groups > alt.folklore.computers > #232620

Re: IEEE-488 Drivers For Linux

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From	Lars Poulsen <lars@beagle-ears.com>
Newsgroups	alt.folklore.computers
Subject	Re: IEEE-488 Drivers For Linux
Date	Tue, 16 Dec 2025 22:06:02 -0000 (UTC)
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On Tue, 16 Dec 2025 13:49:34 -0000 (UTC), Lars Poulsen wrote:
>> In my company, we use it in a test bench for our radio devices. When
>> the devices are built, the manufacturing line solders in an EEPROM
>> preloaded with (among others) a test program. On initial power-up it
>> boots into the test program, which fires up TCP/IP connections to
>> - the Windows PC on the test bench
>> - a "golden" unit permanetly installed on the test bed
>> - an ethernet/GPIB converter
>> (all with fixed IP addresses on the 192.168.12.* subnet)
>> Behind the GPIB converter is an RF power meter

On 2025-12-16, Lawrence D’Oliveiro <ldo@nz.invalid> wrote:
> Is this test EEPROM removed before the devices are sold?

No, the EEPROM lives with the unit forever. I wrote a primitive
filesystem for it, so we can download and update actual user firmware.
Generally, the test program is deleted after we load the user firmware
and tag THAT as "default boot program".

>> Modern RF lab equipment is mostly interfaced with USB, but the old
>> HP lab equipemnt (from before in was rebadged as Agilent and the
>> again as Keysight) is much less expensive (on eBay). And being a
>> small company ("4 guys in a garage") we have to be cheap!

> I have a client who is also fond of that old HP gear, under whichever
> brand.
> ...
> This same client also makes heavy use of wireless modems (previously
> 3G, now 4G) from companies like Sierra Wireless and Teltonika. These
> connect to a host PC via Ethernet or USB. On a Linux host, the USB
> connection appears as its own little virtual LAN -- no special drivers
> needed.

-- 
Lars Poulsen - an old geek in Santa Barbara, California

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Thread

IEEE-488 Drivers For Linux Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-12-15 23:49 +0000
  Re: IEEE-488 Drivers For Linux rbowman <bowman@montana.com> - 2025-12-16 08:27 +0000
    Re: IEEE-488 Drivers For Linux Lars Poulsen <lars@beagle-ears.com> - 2025-12-16 13:49 +0000
      Re: IEEE-488 Drivers For Linux Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-12-16 21:30 +0000
        Re: IEEE-488 Drivers For Linux Lars Poulsen <lars@beagle-ears.com> - 2025-12-16 22:06 +0000
    Re: IEEE-488 Drivers For Linux Beej Jorgensen <beej@beej.us> - 2025-12-17 02:07 +0000
      Re: IEEE-488 Drivers For Linux rbowman <bowman@montana.com> - 2025-12-17 07:49 +0000
  Re: IEEE-488 Drivers For Linux Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-12-16 12:33 -0500
    Re: IEEE-488 Drivers For Linux scott@slp53.sl.home (Scott Lurndal) - 2025-12-16 18:11 +0000
      Re: IEEE-488 Drivers For Linux Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-12-17 07:26 -0500
  Re: IEEE-488 Drivers For Linux never-you-mind@home.org - 2025-12-16 18:24 -0500
  Re: IEEE-488 Drivers For Linux Theo <theom+news@chiark.greenend.org.uk> - 2025-12-18 16:44 +0000
    Re: IEEE-488 Drivers For Linux rbowman <bowman@montana.com> - 2025-12-18 18:17 +0000

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