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  • Please can you read through and vote on the following proposition for changes to the board structure by clicking here.
  1. Androda

    PS/2 to ADB Adapter PCB design for tashtrio by Tashtari

    The PIC12F1840 which is targeted by Tashtrio does not have USB hardware. I understand that this limits the usability somewhat, but it's still useful to have a reference PCB design.
  2. Androda

    PS/2 to ADB Adapter PCB design for tashtrio by Tashtari

    This is a reference PCB design for the "tashtrio" project my lampmerchant / @Tashtari . PCB is licensed Creative Commons Non-Commercial, and Tashtrio is licensed GPL V3. Tashtrio allows you to use PS/2 keyboards and mice with your Macs. PS/2 peripherals may or may not be more available or...
  3. Androda

    Recreating Macintosh Portable Hybrid Module

    Production has started on the hybrid recreation PCBs, version 2 (adjustable A/D line output). Once these are done and tested I plan to open up the listing. I'm using this version in one of my Portables, and the previous version (without adjustable A/D line) in another one.
  4. Androda

    HP/Agilent 16702B Logic Analyzer Display Backlight Fix

    Currently no plans to use a Gotek or similar floppy to SD device, because this natively has Ethernet. Makes it much easier to move around the text-file versions of the analysis output.
  5. Androda

    Strive not to be a success, but rather to be of value.

    Having re-watched the Tinker Different launch video, transparency and a lack of bullying are the main messages I see. In terms of transparency, I will agree that we are lacking some things that could be expected. * Board meeting dates should be posted publicly and the minutes of those meetings...
  6. Androda

    HP/Agilent 16702B Logic Analyzer Display Backlight Fix

    Sure. Here are some stock photos: https://www.artisantg.com/TestMeasurement/56270-18/Keysight-Agilent-16702B-Logic-Analyzer-Mainframe Attached are the unit with the cover removed (had to take that off to get to the display), and front.
  7. Androda

    HP/Agilent 16702B Logic Analyzer Display Backlight Fix

    Quite some time ago I picked up an HP 16702B logic analyzer frame, and have used it for a variety of projects. But all this time, it has had one very annoying fault: the built-in display was not working. That's why it was priced so low, the used equipment wholesaler thought it was irreparably...
  8. Androda

    eMate 300 / N2 Platform memory initialization

    Wow, this is great information. I've never used any of these tools before (other than Ghidra) so it might take me a bit to get set up and understand them. It also sounds like we'll need a dev rom board to try and increase these settings, I would guess that ROM patches can't do it?
  9. Androda

    Help please - MAC Classic refuses to boot from BlueSCSI (DB25 form)

    This is the core problem: a repeated 5-flash (pause) 5-flash means BlueSCSI cannot communicate with the SD card. It's a little odd that a log.txt is created at all if you're getting 5-flash. Did you try this SD card in a different BlueSCSI in a different system before the Classic? If the...
  10. Androda

    eMate 300 / N2 Platform memory initialization

    DRAM chips on the eMate 300 motherboard are 2x TC51V4260. These are 256k x 16 chips, likely wired as two banks of 256k at 16 bits wide. This doesn't exactly explain the 900k of DRAM reported by the eMate in base configuration. My guess is that they are calculating it not based on bus width...
  11. Androda

    Apple eMate 300 Expansion Module (Open Source / Open Hardware Project)

    This time while testing the production modules, I measured the wait time. Varies between about 50 seconds and 1 minute 30.
  12. Androda

    Recreating Macintosh Portable Hybrid Module

    Here's the documentation I mentioned, which runs through checking resistance to things around the hybrid and doing some voltage checks with the battery connected (but the system otherwise turned off). If some people could read this and tell me how terrible it is, I would very much appreciate...
  13. Androda

    eMate ROM question

    If this makes me a hoarder, then yes. https://tinkerdifferent.com/threads/androdas-finds.893/post-7170 Plan is to fix them all up with new display ribbons, upgrade with DRAM+Flash cards, and then resell. Would rebuild the batteries too if I had a good printable design for that (or a battery...
  14. Androda

    Recreating Macintosh Portable Hybrid Module

    Say hello to the 'integrated hybrid tester platform'. Includes three dedicated little voltage meters for (top to bottom) battery, A/D line, and the main 5.2v rail. Three switches are also on there for enabling/disabling 12v, -5v, and the "hichg" line. All hybrids will be tested on this for...
  15. Androda

    Apple eMate 300 Expansion Module (Open Source / Open Hardware Project)

    Yeah, what could an eMate do with 16 megabytes of DRAM? I really have no idea, mostly just want to enable other people to do things which I am not thinking of. :) Production will start on the DRAM+Flash upgrades probably a little later this week. And I'll update the product page to mention...
  16. Androda

    Apple eMate 300 Expansion Module (Open Source / Open Hardware Project)

    Main Update: The DRAM and Flash chips have now arrived, so I can start production of the upgrades again. Very long secondary update: I also ordered some of a different DRAM chip to try out and the results are interesting. These other chips are 8k refresh, 13x9 row and column arrangement, self...
  17. Androda

    Recreating Macintosh Portable Hybrid Module

    Pogo pin tester assembly is in progress, might be able to start testing some boards with it on Monday.
  18. Androda

    F4 BlueSCSI, a BlueSCSI Fork By Androda

    https://github.com/androda/F4_BlueSCSI/releases/tag/1.1-2022-09-20 Thanks to @jokker we now have CD/DVD image support in a full release! This release also improves Atari support, among other things. See the release notes. This brings F4 up to date with the upstream release v1.1-20220917.
  19. Androda

    SCSI to USB adapter reverse engineering

    At a guess, this is a rebadged SCSI controller chip plus microcontroller. Having the ROM dumped is a step toward figuring out which architecture the CPU is.
  20. Androda

    Recreating Macintosh Portable Hybrid Module

    Also, a status update. I have redesigned my "downstream" tester board a bit, and hope to have the updated version by the end of next week. This will be set up with pogo pins as a fixture for use in starting production of these hybrid recreation boards. The pogo pin tester will allow me to run...