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101090 discussions

Reading HP 16500 Logic analyzer firmware disks

by marc.verdiell＠gmail.com

Contacted you offline before I saw this. Thanks a lot. Marc > I'll see if I can get those disks imaged and uploaded somewhere in the next day or two. > -Glen

11 years, 11 months

Adjusting Horizontal & Vertical Hold on Sun 1 monitor

by earl＠baugh.org

Howdy, I've been having a good rescue year... earlier this year a PERQ, and now 2 Sun 1/100's (and yes, one is a 100, not a 100U). (details of the rescues are getting written up for my blog at http://www.vintagecomputerexpo.com... the first PERQ post is up already...) With the Sun 1's I also got two tape/disk drive units... the first one actually BOOTED the first Sun 1... first try (ok, 2nd try, after I unparked the heads). The second actually does the initial boot but has some hard read errors (so I'll have to give it a go with a reformat to see if that resolves things...) But the question I have is that the 2nd Sun 1 integrated monitor need to have the vertical/horizontal hold adjusted. It currently looks like someone tweaked the V-Hold and H-Hold dials that use to be at least on my TV's :-) On the outside there is only a brightness knob... so I'm going to have to open it... but I've not been able to find any details on what to look for... I'm assuming some potentiometers some place... does anyone know? Thanks. Earl

11 years, 11 months

Reading HP 16500 Logic analyzer firmware disks

by jws＠jwsss.com

I have a number of 16500 floppy disks I'd like to digitize, and am wondering what the best way is to image them. I will probably want to look at them if possible if they are FAT, as some are, so having a flat image would be nice. I'll look into the prior postings for software to image them for reproduction. I just tried a DD from one attached as an experiment in this way, and did not get a good result: Macbook Pro running Mavericks Vmware Fusion. Ubuntu 10 Teac USB floppy drive attached thru to the Ubuntu machine. The floppy drive showed up, but a DD only copied in about 1mb from a 1.44 format disk. Not sure what quirk that was from. It's been a long time, and even though I follow your discussions here, I'm not sure if this pile will work. I have a Linux Laptop and also a windows Laptop (XP) which I'm going to try. thanks JIm

11 years, 11 months

SUN Ultra-2 Enterprise big trouble

by supervinx＠libero.it

Well, it's not so retro :) I powered it up and seemed to work. Booted from CD and removed root password. While surfing in the HD, I got (console) a lot of ECC errors. I powered it down and swapped two SIMM modules. Then it refused to boot at all. CTRL-BREAK didn't respond in that phase. So I rebooted and hit CTRL-BREAK early, and set diag-switch? true, diag-level to max. Resetted. Got memory error, Ecache errors and RED state exception (may be I'm missing something else...). Did a lot of scrambling: memory modules, CPU modules (2). Memory errors seemed to disappear, but Ecache errors remained for both CPUs. I noticed faults increase with temp. Before I hit the wall multiple times with my head: shall I assume the MB is gone fishing? Ecache errors seems independent from CPU modules (I tried also 1-CPU configuration). I don't think a memory error (SIMM) could trigger and Ecache error (EDP) on both CPUs. Damn... Thanks! -- Vincenzo (aka Supervinx) --==ooOoo==-- My computer collection: http://www.supervinx.com/Retrocomputer --==ooOoo==-- You can reach me at: www.supervinx.com www.facebook.com/supervinx http://www.youtube.com/user/supervinx http://www.myspace.com/supervinx

11 years, 11 months

Reading HP 16500 Logic analyzer firmware disks (Glen Slick)

by marc.verdiell＠gmail.com

Glenn I am super interested in a copy of these if it were possible. UPS just dropped a package with an HP1670G on my doorsteps a few hours ago (yay!) and I have an HP-IB and a 8085 probe on the way - but no inverse assemblers for either. Can I contact you off line? Marc > > Message: 2 > Date: Wed, 10 Sep 2014 10:05:31 -0700 > From: Glen Slick <glen.slick at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Reading HP 16500 Logic analyzer firmware disks > Message-ID: > <CAM2UOwLM5YNFgi8qOeadJZXS6v0weXdhZwpMg7PPwcACacqR3g at mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > On Wed, Sep 10, 2014 at 9:53 AM, Sean Caron <scaron at umich.edu> wrote: >> Has anyone archived Inverse Assemblers for various HP LAs anywhere? I'd >> love to get the inverse assemblers for a few selected CPUs (68000, 6809, >> 6502, Z80, ...) for my 1662A. Just stuff I'd be fooling around with while >> breadboarding. >> > > I have Config/IA disks for at least the following pre-processor interfaces: > > 10300B Z-80 probe > 10304B 8085 probe > 10342B HPIB/RS-232 probe > > > ------------------------------

11 years, 11 months

Cauzin Softstrip Reader barcode creation?

by fozztexx＠fozztexx.com

I just received a couple of the Cauzin Softstrip Readers, and after looking through everything included, there's no software to *create* my own barcodes! Does anyone have software that will let you print your own? I'm about to do a type-in BASIC contest starting tomorrow, and I thought it would be fun to offer the program in the softstrip format. -- Follow me on twitter: @FozzTexx Check out my blog: http://insentricity.com

11 years, 11 months

Questions - Setting up a SRAM board in S-100 / Altair system? Banks vs. Blocks?

by drlegendre＠gmail.com

I've been trying to familiarize myself with the soon-to-arrive SRAM board, reading through the documentation, googling this & that, etc. But I'm having trouble understanding a couple of concepts.. (You can d/l the manual for the board at http://nerp.net/~legendre/altair/ - "California Computer Systems 2016B". There's a pic there as well.) I get that the S-100 memory space is organized into 16 blocks of 4096 (8-bit) bytes, with the high-order digit in the memory address denoting the block number (0XXX-FXXX). This would correspond to address lines A12-A15. Likewise, I get that the SRAM board is organized into 4 blocks of 4096 bytes per block, and that with the corresponding DIP switches, I can individually map each 4K block into any of the 16 blocks in the memory space. Great, I know how to configure the memory blocks.. But now what is this about 'banks'? On p.33, section 3.3 the manual states "The 2016B is bank-selectable by bank port address and bank byte. Thus it is fully compatible with Cromemco, Alpha Micro and other port-bank-select systems. IT IS NOT COMPATIBLE WITH ADDRESS-SELECT SYSTEMS SUCH AS IMSAI." So what does that mean to me? There are apparently two parameters, Bank Byte and Bank Port Address - and I just can't get what they're about. How does a bank differ from a block, and why do I need to configure those settings? And is this card even compatible with the Altair - I don't know if it uses the former or latter (IMSAI) scheme.. As ever, thanks for your help!

11 years, 11 months

Alphastation 300 questions.

by wlewisiii＠gmail.com

>You don't get any sort of beep code out of it? I gather these 255/300s are >supposed to beep at you like a PC does, given certain states where it can't >produce a display (or, I guess, console output). It cycles through the lights then stops there. Based on your comments I pulled the NVRAM battery and then I get a 1-2-1 beep code that the manual calls "Real-time clock (BQ3287) failure, or the real-time clock interrupt did not occur." and the LED cycle stops at XX0X 0XX0 which it calls "Interrupts test failed" Still no output on Com 1 or on the video card (an S3 based VGA card). My next thought is a new CR2032 and see if it get past that in the startup sequence. Any other ideas? >Best, > >Sean > > > >>On Wed, Sep 10, 2014 at 3:59 PM, Sean Caron <scaron at umich.edu> wrote: >> >> Hi William, >> Does it cycle through other LED states before it reaches 0xD1? Or does it >> just start there at power-on and sit forever? That is pretty odd; not quite >> sure what to make of that. You tried the console with and without a >> null-modem? No null modem at hand. Just have a straight through cable and an Esprit 350C terminal. Thanks, William -- Live like you will never die, love like you've never been hurt, dance like no-one is watching. Alex White l

11 years, 11 months

TU56 Motor Run Capacitors.

by bob＠theadamsons.co.uk

> On Wed, 10 Sep 2014 08:56:52 -0700 Chuck Guzis wrote > > Indeed, if one looks carefully at the nonpolar crossover caps, they > appear to be nothing more than back-to-back electrolytics. On the other > hand, I note that motor run capacitors have gotten a lot smaller over > the years, so a higher-voltage unit just might fit. > No one seemed inclined to recommend intermittent duty start capacitors so I've gone with high voltage run capacitors, all that seem available in the UK anyway. As Chuck notes, things have got smaller. The originals (100uF, 60V) were 100mm long and 50mm diameter. The ones I have used (450V) are approx 120mm long plus a 12mm stud mounting and 60mm diameter. The TU56 has plenty of space although mounting them neatly without butchering the drive was a bit of a chore. Working satisfactorily - just the electronics to sort out now ;o).

11 years, 11 months

Replacement NiCd Rechargeable Batteries for SemiDisk Card

by cctalk＠fahimi.net

Hello All: I have a battery backed ISA RAM card by SemiDisk. It currently has a number of Panasonic P-25AA 1.2V 250MAh rechargeable Nickel Cadmium batteries. Given the card date backs from 1990 I am guessing the batteries are a bit dead and I'd like to replace them. However, my Googlefu did not turn up anything. Does anyone know if Panasonic still makes these batteries and if so where I can purchase some in the USA? I did find some Chinese generic batteries: http://www.amazon.com/Size-Rechargeable-Battery-250mAh-NiCd/dp/B005NRSQS8# but I am not sure as to the quality of said battery. Any help is appreciated in sourcing some batteries. Thank you. -Ali

11 years, 11 months

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