+Ksarul Posted February 11, 2020 Author Share Posted February 11, 2020 I won't have the production boards in hand for a few more weeks, Beery. I prefer not to take payment from folks until the board(s) they want are ready to ship. Quote Link to comment Share on other sites More sharing options...
+9640News Posted February 11, 2020 Share Posted February 11, 2020 1 minute ago, Ksarul said: I won't have the production boards in hand for a few more weeks, Beery. I prefer not to take payment from folks until the board(s) they want are ready to ship. OK, no problem. 1 Quote Link to comment Share on other sites More sharing options...
GDMike Posted February 11, 2020 Share Posted February 11, 2020 We're getting closer 1 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted February 16, 2020 Author Share Posted February 16, 2020 (edited) This is for those of you interested in seeing the required modifications for one of the prototype boards. It actually has a lot less flying wires than most of the original Horizon variants did. . . Edited February 16, 2020 by Ksarul 9 Quote Link to comment Share on other sites More sharing options...
Gary from OPA Posted February 17, 2020 Share Posted February 17, 2020 Ksarul been kind enough to send to me one of the prototype boards. I am looking forward to building it up, and helping out on the project. 1 1 Quote Link to comment Share on other sites More sharing options...
Gary from OPA Posted February 17, 2020 Share Posted February 17, 2020 On 11/23/2019 at 7:11 PM, FALCOR4 said: The RAMBO configuration is very interesting. Did anyone actually write software to take advantage of it? Also, can someone tell me how the >6000->7FFF cartridge ROM space is disabled so that the RAMBO memory can reside there? I found that to be very interesting. It is not. -- Its just power of first to the bus wins. -- The PEB flexcable has strong drivers, and the memory on even original horzion is fast, and the cartridge roms are slow -- so it wins over. Now I am not sure if today's new cartridges like flashrom99 or finalgrom can be overdriven like the current setup, but i have recently bought both and once my horzion 4000b prototype comes i will be testing everything out to see. there is few pieces of software out there, but not many, i plan to release the few programs that have been designed for it later on this year on my website or here, once i can test them out again on real iron hardware, i only been using emulators the last couple of years, and now in process of rebuilding my ti99 real iron setup, my previous one got totally destoried during hurricane matthew couple of years ago. 5 Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted February 22, 2020 Share Posted February 22, 2020 Playing around with a little TI Artist splash-screen program for the Horizon 4000B. Image converted by Tursi's 9918 converter 11 2 Quote Link to comment Share on other sites More sharing options...
Tursi Posted February 23, 2020 Share Posted February 23, 2020 I really love the patterns that filter produces. It's not /always/ the best answer, but I often think it looks better than random dots - more like intentional shading. 4 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted February 24, 2020 Author Share Posted February 24, 2020 I now have four of the prototypes ready for the smoke test/final component insertion, so they should be ready by next weekend. . . 6 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted March 1, 2020 Author Share Posted March 1, 2020 I have smoke tested seven of the prototype boards and inserted the logic chips into all of them. I may actually be able to finish the group tomorrow. . .if the honey-do list doesn't get me first. 9 1 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted March 7, 2020 Author Share Posted March 7, 2020 (edited) I will soon know if I successfully quashed all issues with the HRD4000B layout. Production boards had an extra via in a really bad place (connected 5V to GND), but look to be correct in all other respects--and this one is a super-easy fix. Now to build a test board to complete the verification. Edited March 7, 2020 by Ksarul 2 1 Quote Link to comment Share on other sites More sharing options...
GDMike Posted March 8, 2020 Share Posted March 8, 2020 (edited) Take your time..I got bad news..my tax refund is held up..omg...sniff..there goes all the ramdisks...poof Edited March 8, 2020 by GDMike 1 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted March 9, 2020 Author Share Posted March 9, 2020 (edited) I have been running HRD4000B production board #4350 though its paces this evening. Everything works exactly as expected. I am really happy with this board. Many thanks to @FALCOR4 and @InsaneMultitasker for all of their help to bring this project to fruition. Now I just have to build a few more boards to have stock on-hand (although I do have a few completed prototype boards on-hand now). Note, the serial numbers mean something too: HRD4000 boards ran from #4000 to #4250 or so; HRD4000B prototype boards run from #4300 to #4349, although not all of those numbers may end up in circulation; and HRD4000B production boards start at #4350. I wouldn't worry about all the boards being gone that quickly, @GDMike. I have lots of parts. . . Edited March 9, 2020 by Ksarul 6 1 Quote Link to comment Share on other sites More sharing options...
aftyde Posted March 9, 2020 Share Posted March 9, 2020 Sign me up for 2 assembled 8mb boards - my 32K cards need to go back into storage and this looks like much more fun! 1 Quote Link to comment Share on other sites More sharing options...
GDMike Posted March 9, 2020 Share Posted March 9, 2020 Ill try to find a way to get a fully loaded board. Are you going to make one for the NanoPeb? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted March 9, 2020 Share Posted March 9, 2020 Ill try to find a way to get a fully loaded board. Are you going to make one for the NanoPeb?The nanopeb is not expandableThese are peb cardsSent from my LM-G820 using Tapatalk Quote Link to comment Share on other sites More sharing options...
GDMike Posted March 9, 2020 Share Posted March 9, 2020 Is there any formal board naming, other than 4000b etc.. like Rambo.. but, other than Rambo. Quote Link to comment Share on other sites More sharing options...
Shift838 Posted March 9, 2020 Share Posted March 9, 2020 (edited) i got my 4000B in today... Feels like Christmas! Going to put it in my Geneve. Edited March 9, 2020 by Shift838 3 1 Quote Link to comment Share on other sites More sharing options...
Gary from OPA Posted March 10, 2020 Share Posted March 10, 2020 mine sitting in dominican customs waiting for clearance, hope to see it in my hands by wednesday, just bare prototype, now i need to get all parts to build it up. 2 Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted March 10, 2020 Share Posted March 10, 2020 7 hours ago, GDMike said: Is there any formal board naming, other than 4000b etc.. like Rambo.. but, other than Rambo. We could name it the "Jimbo" (runs and ducks for cover) 2 2 Quote Link to comment Share on other sites More sharing options...
GDMike Posted March 10, 2020 Share Posted March 10, 2020 Oh.my..theres not a big enough smiley for that one.. Quote Link to comment Share on other sites More sharing options...
GDMike Posted March 10, 2020 Share Posted March 10, 2020 Maybe I'll name mine, big gulp 1 Quote Link to comment Share on other sites More sharing options...
MikeV Posted March 13, 2020 Share Posted March 13, 2020 On 3/8/2020 at 8:05 PM, Ksarul said: Now I just have to build a few more boards to have stock on-hand (although I do have a few completed prototype boards on-hand now). Note, the serial numbers mean something too: HRD4000 boards ran from #4000 to #4250 or so; HRD4000B prototype boards run from #4300 to #4349, although not all of those numbers may end up in circulation; and HRD4000B production boards start at #4350. Is there a difference between the prototype boards and the production boards except for the serial# sequence? Can you still have a SAMS card in the PE Box with the HRD? Thank you. MikeV. Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted March 13, 2020 Author Share Posted March 13, 2020 2 minutes ago, MikeV said: Is there a difference between the prototype boards and the production boards except for the serial# sequence? Can you still have a SAMS card in the PE Box with the HRD? Thank you. MikeV. The HRD lives fine in a PEB with a SAMS card, so long as you don't implement the 32K option on the HRD (two chips that you don't put into the sockets if you don't want the HRD to also be your 32K card). On the differences between the prototype boards and the production boards, they are minimal. There were a couple of traces that needed to be repositioned on the prototypes (there are ten flying wires to accomplish this) and we made the command decision to eliminate the option for an 8K DSR RAM chip on the production boards (in favor of a 32K chip at all times, so that every board could always be split into two RAM Disks if desired). Note that the prototype would work with either 8K or 32K of DSR RAM, so it is a minor difference. I don't build them using the 8K option though, so in practical use, there are no differences (just a few flying wires that aren't present on the production boards). 2 Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted April 6, 2020 Share Posted April 6, 2020 As we get closer to more hardware being released and more interest in the ramdisk, there is now a Github site in process for the source code and other materials. A Wiki has also been created to cover things at a high level. I'll post this into the ROS/CFG development topic as well. https://github.com/horizonramdisk/Horizon-Ramdisk-ti994a/wiki 3 Quote Link to comment Share on other sites More sharing options...
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