Logic Analyser Died

Help & news on accelerators from TF, Amiga, Atari, CD32 etc

Moderators: terriblefire, Terriblefire Moderator

terriblefire
Moderator Team
Moderator Team
Posts: 5368
Joined: Mon Aug 28, 2017 10:56 pm
Location: Glasgow, UK

Logic Analyser Died

Post by terriblefire »

So my beloved logic analyser with the network card died yesterday.

Looks like the DS1387 chips battery has failed.
Removed
Removed
ECDA62EF-D3F8-4DA1-9EB0-FF7D56A9410A.jpeg (615.59 KiB) Viewed 6389 times
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
User avatar
stephen_usher
Posts: 5580
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
Contact:

Re: Logic Analyser Died

Post by stephen_usher »

That's annoying. How easy are those particular DS units to find? Some of the older ones are still available but the newer ones discontinued (a problem for those trying to keep Sun Ultra workstations running, but older SPARCstations are just fine as the 42T02 is still in manufacture).

Given how often these units run out of battery I'd put a socket in it. (But generally I always do if I'm desoldering a chip.)
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
terriblefire
Moderator Team
Moderator Team
Posts: 5368
Joined: Mon Aug 28, 2017 10:56 pm
Location: Glasgow, UK

Re: Logic Analyser Died

Post by terriblefire »

I’m not a fan of sockets. They’re v unreliable but in this case it’s warranted. Usually I just solder a new one in.

I’m planning to rework the DS1387 and install a coin battery then reflash with an arduino nano
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
alenppc
Moderator Team
Moderator Team
Posts: 906
Joined: Thu Nov 08, 2018 12:59 pm

Re: Logic Analyser Died

Post by alenppc »

Those Dallas battery packs are horrible, they were used in the old cheap PC motherboards also. I am surprised they cheaped out on something like that. Your logic analyzer is running on 68030? Amazing.
terriblefire
Moderator Team
Moderator Team
Posts: 5368
Joined: Mon Aug 28, 2017 10:56 pm
Location: Glasgow, UK

Re: Logic Analyser Died

Post by terriblefire »

It’s a 68EC020RP25...

Yeah I’d like a more robust solution long term
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
terriblefire
Moderator Team
Moderator Team
Posts: 5368
Joined: Mon Aug 28, 2017 10:56 pm
Location: Glasgow, UK

Re: Logic Analyser Died

Post by terriblefire »

A bit of tidy drilling if I do say so myself
0BAC30B3-FBF8-4CB7-BC6B-4D2F1D83B98C.jpeg
0BAC30B3-FBF8-4CB7-BC6B-4D2F1D83B98C.jpeg (471.49 KiB) Viewed 6306 times
Oddly the voltage is still about 3.0V but the current date/time was lost
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
terriblefire
Moderator Team
Moderator Team
Posts: 5368
Joined: Mon Aug 28, 2017 10:56 pm
Location: Glasgow, UK

Re: Logic Analyser Died

Post by terriblefire »

And i managed to kill the arduino that i was using to reprogram the chip.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
User avatar
stephen_usher
Posts: 5580
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
Contact:

Re: Logic Analyser Died

Post by stephen_usher »

OK, so what's the third thing to go wrong?
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
User avatar
kludge
Posts: 393
Joined: Thu Nov 08, 2018 2:05 pm
Location: Sweden

Re: Logic Analyser Died

Post by kludge »

stephen_usher wrote: Sun May 12, 2019 11:00 am OK, so what's the third thing to go wrong?
A terrible fire, of course.
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
User avatar
arf
Posts: 74
Joined: Sun Oct 29, 2017 9:30 am

Re: Logic Analyser Died

Post by arf »

kludge wrote: Sun May 12, 2019 1:51 pm
stephen_usher wrote: Sun May 12, 2019 11:00 am OK, so what's the third thing to go wrong?
A terrible fire, of course.
--
Against signature spam!
Post Reply

Return to “Terriblefire's channel”