More about Himac HR42 48K

Hello Conan Con> availability: diagrams/installations/photo of the board/photo of the computer/descriptions/firmware Con> two BMK (PLM?) I185 +/+/+/+/-- Djoni already talked about the Himac HR42 in this thread, and I’m in the thread "Describe your reality(s)!" [http://www.zx.pk.ru/showpost.php?p=29675&postcount=35]. But I think the following additions will be interesting. The "Attachments" contains the manual that came with this computer; in it The principles of operation of the circuit, as well as I185, are briefly described. In 1992, Himac sold customized boards and kits for self-assembly (with subsequent adjustment at the company). In 1993 a store of this company appeared. There I first saw a finished computer in a case. It was very similar to the Delta computer case, which is shown in the photo: http://zx.pk.ru/attachment.php?attachmentid=718 in message #153 [http://zx.pk.ru/showpost.php?p=13502&postcount=153] of this topic. Since I purchased (at the very beginning of 1993) a customized board, then the original case I don’t have one, and my computer, like Djoni’s, is in a homemade case. Con> Is it possible to test (for the number of clock cycles between INTs) HIMAC48? Oberon 5 E-log test shows 71340 clock cycles per interrupt (101.91%), but this result can hardly be trusted: some games, for example,Elite or Star Pilot run noticeably slower on Himac than, say, Scorpion ZS 256. Horror Fastest V1.00 from Deadie is probably more accurate, result which is presented on "Miniatures". But he also did not correctly determine the type of muses. processor: I have AY-3-8910, and also no ZX Lprint III: instead - parallel port with address #FB. Con> И185 ... Con> I wonder who developed them? I185 was developed at the Special Design Bureau (OKB) at the Novosibirsk plant semiconductor devices (NSD) at the very beginning of the 1990s. On the Internet there is an OKB website: http://okbnzpp.ru/, but, unfortunately, there is not a word about I185... Maybe we can all ask the local administrator to post the information and about old developments? :v2_biggr: File: himaual.zip http://zx.pk.ru/attachment.php?attachmentid=2138 File: HIMHFT1A.gif http://zx.pk.ru/attachment.php?attachmentid=2139 File: HIMHFT1B.gif http://zx.pk.ru/attachment.php?attachmentid=2140