HP Forum Archive 21

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DM-15CC family is available to order Message #1 Posted by Jeff Johnson on 3 July 2012, 7:52 a.m. For those interested, the DM-15CC is available to order again, and it looks like you can order the entire Voyager family now, not just the -15. I ordered a -15 this morning. Web site is http://www.rpn-calc.ch/ Edited: 3 July 2012, 7:53 a.m.

Re: DM-15CC family is available to order Message #2 Posted by Walter B on 3 July 2012, 8:01 a.m., in response to message #1 by Jeff Johnson I can confirm your observations. Got an email this morning.

Re: DM-15CC family is available to order Message #3 Posted by Jamil (Brazil) on 3 July 2012, 8:49 a.m., in response to message #1 by Jeff Johnson I just ordered mine (DM-15CC)... But the link to order doesn't work using "internet explorer" ... I had to use "Mozilla Firefox"... Perhaps this may help someone here in Brazil.

Re: DM-15CC family is available to order Message #4 Posted by Gerson W. Barbosa on 3 July 2012, 10:05 a.m., in response to message #3 by Jamil (Brazil) Olá Jamil, I've just ordered mine (using Chrome here). Thank you all!

Re: DM-15CC family is available to order Message #5 Posted by Michael de Estrada on 3 July 2012, 10:18 a.m., in response to message #4 by Gerson W. Barbosa It won't work with IE and I don't have other browsers, so I just paid Michael Steinmann directly.

Re: DM-15CC family is available to order Message #6 Posted by Derek Walker (UK) on 3 July 2012, 10:31 a.m., in response to message #5 by Michael de Estrada The first couple of tries earlier today (using IE8) would not move on from the order page, but third attempt just now worked OK. Not sure if something has been fixed in the meantime or some other cause.

Re: DM-15CC family is available to order Message #7 Posted by Luiz C. Vieira (Brazil) on 7 July 2012, 5:06 p.m., in response to message #3 by Jamil (Brazil) Hi, Jamil. Did you receive my e-mail, 41CL related? Cheers. Luiz

Re: DM-15CC family is available to order Message #8 Posted by Jamil (Brazil) on 9 July 2012, 9:26 a.m., in response to message #7 by Luiz C. Vieira (Brazil) Hello, Luiz. Yes, and I returned to adress I received, .....[at]rerigueri[dot]com[dot]br, I'll try this l/i/n/u/x _ l/c/v (at) y a h o o DOT c\o\m.br just right now, Abraço Jamil

Re: DM-15CC family is available to order Message #9 Posted by Namir on 3 July 2012, 10:38 a.m., in response to message #1 by Jeff Johnson Cool! I ordered an HP-10C and an HP-11C. Namir

Re: DM-15CC family is available to order Message #10 Posted by Jeff Johnson on 3 July 2012, 11:16 a.m., in response to message #9 by Namir I chuckled when I saw that you can actually order a "DM-XXCC", which gives you one of each of the 5 types of calculators. It appears we have been tagged for what we truly are - a bunch of techno-geeks. We climb that technical mountain simply because it is there (my apologies to Petrarch).

Re: DM-15CC ROM version Message #11 Posted by Jeff Johnson on 3 July 2012, 11:07 a.m., in response to message #1 by Jeff Johnson Also, in case anyone besides me is curious, I emailed Michael about which version of the V6 ROM is loaded into the -15. He confirmed that it is the standard V6 ROM, not the MEM80 or MEM1B. So if you are interested in accessing the expanded memory, you will need to load the MEM80 or MEM1B ROM version yourself via the USB port.

Re: DM-15CC ROM version Message #12 Posted by michael steinmann on 4 July 2012, 2:46 p.m., in response to message #11 by Jeff Johnson Jeff, you got me wrong. I wrote you the dm-15cc comes with the MEM80 V6 version installed.

Re: DM-15CC ROM version Message #13 Posted by Michael de Estrada on 4 July 2012, 7:38 p.m., in response to message #12 by michael steinmann So, is that the same as what I received in the first DM-15CC release ? Edited: 4 July 2012, 7:38 p.m.

Re: DM-15CC ROM version Message #14 Posted by Jeff Johnson on 5 July 2012, 8:28 a.m., in response to message #12 by michael steinmann Michael, I went back and re-read your email. My apologies - I got that totally backwards. Thank you for setting the record straight.

Re: DM-15CC family is available to order Message #15 Posted by Mark Hardman on 3 July 2012, 11:12 a.m., in response to message #1 by Jeff Johnson You save CHF46 if you buy all five for CHF299! I could not resist--I'm so weak. I do have to brag a little. I provided the donor calculator that Michael used to extract the HP10C ROM. Mark Hardman Houston, TX

Re: DM-15CC family is available to order Message #16 Posted by Harald on 3 July 2012, 3:47 p.m., in response to message #15 by Mark Hardman I nearly did that too. And then decided to go for a 15C only. . . . I can still go for the set later and have a second 15c ;)

Re: DM-15CC family is available to order Message #17 Posted by Mark Scheuern on 3 July 2012, 6:19 p.m., in response to message #16 by Harald I was tempted to order a 10C since I don't have a "real" one--I do have a 15C--but I was unable to convince myself of the logic of that and ended up ordering a 15C instead. But yet, somehow I still want one of those, too... .

Re: DM-15CC family is available to order Message #18 Posted by Pete Wilson on 5 July 2012, 6:18 p.m., in response to message #17 by Mark Scheuern I managed to keep it at the HP-15C and HP-16C, even though I have an original of both, and a 15C LE I haven't had the heart to take out of the box (might have to get another for throwdown). I don't have an HP-10C or 11C, but I think I can get buy with getting just the originals of those. :)

Re: DM-15CC family is available to order Message #19 Posted by michael steinmann on 4 July 2012, 3:10 p.m., in response to message #15 by Mark Hardman Mark, thanks again for the 10C. In fact your donation made us extract all the ROMs (except for the 16C which we don't have yet). I would like to offer you a free calc of your choice, please let me know which one you'd like. If anyone is willing to lend me a 16C for ROM extraction I would really appreciate it. BTW, check out this picture of how David captured the ROM: http://www.rpn-calc.ch/photos/david_captures_10C.jpg The additional capacitors seen were used to slow it down.

Re: DM-15CC family is available to order Message #20 Posted by Mark Hardman on 4 July 2012, 5:13 p.m., in response to message #19 by michael steinmann I'm sure that others would be interested in the technical details of how you dumped the ROMs. Did you use the self-test method similar to what Eric Smith described in this thread? I've already bought and paid for the full DM-XXCC set. I'll send an email requesting another DM-15CC. I'll donate that unit to HHC as a door prize at this year's conference in (fingers crossed) Houston. Mark Hardman

Re: DM-15CC family is available to order Message #21 Posted by uhmgawa on 4 July 2012, 10:08 p.m., in response to message #20 by Mark Hardman Quote: I'm sure that others would be interested in the technical details of how you dumped the ROMs. It is fairly trivial given the available documentation of the NUT ISA protocol. The reason I held off releasing my notes/schematics/code was out of concern of voyager rom copyright status from HP's perspective, where effectively doing so would enable unauthorized image distribution. Although I'd been led to believe otherwise in my discussions with HP, that concern may have been exaggerated. Empirically HP doesn't seem particularly motivated to assert nor defend a copyright claim. That possibly could change w/r/t a 12C clone as that version remains in production. Disclaimer: IANAL nor have any affiliation with HP.

Re: DM-15CC family is available to order Message #22 Posted by David Jedelsky on 5 July 2012, 8:42 a.m., in response to message #20 by Mark Hardman Hi, I'm on holidays just now ... so, I will respond with some possibly interesting details of our ROM scanning later. Stay tuned :) David

Re: DM-15CC family is available to order Message #23 Posted by uhmgawa on 4 July 2012, 9:50 p.m., in response to message #19 by michael steinmann Quote: The additional capacitors seen were used to slow it down. You shouldn't necessarily need to lower the LC tank resonance of a self clocked NUT, or intrude beyond three strategically placed needle probes. The raw ISA rate is relatively lethargic and I recall acquiring images from self-clocked voyagers using a 20Mhz SoC. As the CXISA image scan is cyclic, it is possible to dump an incrementally acquired segment and then retrigger on the next CXISA sweep at the point where the prior acquisition left off. Moreover the NUT is a fully static design which can be clocked at whatever frequency is convenient for the task at hand. This characteristic was particularly useful when creating a poor man's ICE of sorts to puzzle through emulation of NUT rotate-22 semantics in KEMU.

Re: DM-15CC family is available to order Message #24 Posted by Pete Wilson on 5 July 2012, 6:12 p.m., in response to message #19 by michael steinmann Sent you an email re: HP-16C extraction.

Re: DM-15CC family is available to order Message #25 Posted by Massimo Gnerucci (Italy) on 4 July 2012, 3:24 p.m., in response to message #15 by Mark Hardman I was so weak, too! ;-) The waiting begins. Massimo

Re: DM-15CC family is available to order Message #26 Posted by hpnut on 3 July 2012, 11:56 a.m., in response to message #1 by Jeff Johnson I wonder if the bug in the 15cc where sometimes it just loses power and resets all data - has it been fixed? I plan to order an 16CC soon.

Re: DM-15CC family is available to order Message #27 Posted by michael steinmann on 4 July 2012, 2:49 p.m., in response to message #26 by hpnut yes, that has been fixed. A capacitor parallel to the pullup resistor on the reset wire does it - anything bigger than 0.1nF is fine. Adding it to those of the first batch is fairly easy.

Re: DM-15CC family is available to order Message #28 Posted by Neil Hamilton (Ottawa) on 4 July 2012, 3:31 p.m., in response to message #27 by michael steinmann Can you supply details of the fix? Would that be R1 or R8? Either a component number or a picture with the resistor location circled would be sufficient. A picture of a modified 1st batch machine would be even better. Many thanks...

Re: DM-15CC family is available to order Message #29 Posted by Thomas Radtke on 5 July 2012, 2:53 a.m., in response to message #27 by michael steinmann Hallo Michael! Was this fixed somewhere in the first batch already? I've never faced this problem, but maybe we have enough moisture in Germany to not develop static charges ;-). Nonetheless, I second Neils request for a picture. Another question: Were you able to improve the keyboard? Best, Thomas Edited: 5 July 2012, 2:54 a.m.

Re: DM-15CC family is available to order Message #30 Posted by Reth on 5 July 2012, 9:50 p.m., in response to message #29 by Thomas Radtke Quote: Another question: Were you able to improve the keyboard? I'm interested in the answer to this question. I've got one from the very first batch with completely useless keyboard. Is there a way those to be fixed or replaced? Edit: cleaning my paypal account I found a message from Michael from the time of first release offering ways to fix the keyboard which I have missed. Edited: 7 July 2012, 6:31 p.m. after one or more responses were posted

Re: DM-15CC family is available to order Message #31 Posted by Thomas Radtke on 6 July 2012, 2:52 a.m., in response to message #30 by Reth Quote: I've got one from the very first batch with completely useless keyboard. Same here. As much as I admire what those guys did, this is what makes the difference between a usable calculator and decoration :-/.

Re: DM-15CC family is available to order Message #32 Posted by michael steinmann on 6 July 2012, 2:30 p.m., in response to message #29 by Thomas Radtke no, this "body capacitor discharge problem" was not fixed in the first batch. It seems to happen to some devices more often than on others. Edited: 6 July 2012, 2:32 p.m.

Re: DM-15CC family is available to order Message #33 Posted by bill platt on 3 July 2012, 5:29 p.m., in response to message #1 by Jeff Johnson And the exchange rate to the dollar is more favorable than it had been.

Re: DM-15CC family is available to order Message #34 Posted by db (martinez, ca.) on 3 July 2012, 9:06 p.m., in response to message #1 by Jeff Johnson ordered a 15. looking forward to installing a larger memory version if it will work with ubuntu.

Re: DM-15CC family is available to order Message #35 Posted by Lincoln R. on 3 July 2012, 11:09 p.m., in response to message #1 by Jeff Johnson I ordered a 16CC and look forward to getting it. I own 2 15C LEs and a 32s so I think I'm set on scientific calcs for a long time to come.

I received my DM-15cc ! Message #36 Posted by Pascal on 7 July 2012, 5:20 a.m., in response to message #1 by Jeff Johnson I just received my DM-15cc and I was impressed by the keyboard. I was expecting the kind of keyboard that you find in those credit card calculator, with imprecise keying. But they managed to reproduce a kind of click effect that you find with the original series and it it rather precise. You have to press a little too hard on the keys in my opinion in order to get the contact, but I prefer this to the imprecise feeling with other credit card calculator. The leather pouch is nice and does not look cheap at all.

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