• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Recent content by rabbitholecomputing

  1. rabbitholecomputing

    Announcing ZuluSCSI Pico (Open Source Hardware)

    Unless you have a specific plan for wanting to route the USB signals elsewhere, connecting D- and D+ USB signals to the PCB from the Pico is not necessary, and leaving them as-is will not prevent anything from working properly.
  2. rabbitholecomputing

    Announcing ZuluSCSI Pico (Open Source Hardware)

    @crazyben There's no need to produce the gerbers yourself, and unless you're changing something, I would recommend not doing that. The ZuluSCSI Pico OSHW gerbers _and_ BOM + POS/CPL are at in the repository at...
  3. rabbitholecomputing

    Announcing QuokkADB, a marsupial-powered alternative to USB Wombat

    This sort of functionality can only be enabled with a revised hardware design, and is not possible to enable via a firmware upgrade. Since there are already products available in the marketplace that do what you want, we'd recommend those. There is nothing wrong with USB Wombat. Our design...
  4. rabbitholecomputing

    Announcing QuokkADB, a marsupial-powered alternative to USB Wombat

    Rabbit Hole Computing is pleased to announce general availability of QuokkADB, a small and easy-to-use peripheral that allows you to use modern USB keyboards and mice with ADB-equipped macintosh computers. It's available today via our web store at an affordably-priced $29.99. Over the past few...
  5. rabbitholecomputing

    68020 SBC on VME Can't use the .ini file

    Photos of the SCSI board would certainly be helpful. Preferably well-lit and with legible part numbers :)
  6. rabbitholecomputing

    Power Macintosh G4 Disk Drive Benchmark Roundup

    With respect, this is a not-entirely-accurate oversimplification. Not all SD cards are created equally, and the outdated claim that "SD cards aren't really designed for frequent re-writing of data" is nowhere near an accurate statement, in 2023/2024. Modern SD cards, which have their own caches...
  7. rabbitholecomputing

    ZuluSCSI RP2040 support for USB Mass Storage - access SD card contents via USB

    Thanks to a firmware contribution from @zigzagjoe, ZuluSCSI RP2040 owners have some experimental/preview firmware that enables USB MASS STORAGE support for ZuluSCSI RP2040, allowing you to access the contents of the SD card via USB. As this is limited to 11Mbit/second USB 1.1 speeds, it is not...
  8. rabbitholecomputing

    A high-quality SATA PCI 2.5" hard card, to celebrate SATA's 20th birthday

    The board has an AM29LV040 soldered down from the factory, so yes. While that's not one of the two ICs you cite, it will also work.
  9. rabbitholecomputing

    A high-quality SATA PCI 2.5" hard card, to celebrate SATA's 20th birthday

    As @Phipli already stated, that's not a practical possibility, because you'd need to create an 040 bus to PCI bridge, which would be an absurdly expensive thing to do, to say nothing of the engineering costs associated with bringing something like that into existence.
  10. rabbitholecomputing

    Announcing ZuluSCSI Pico (Open Source Hardware)

    There are indeed plans, and we've already produced a batch of boards, which we took delivery of yesterday. While we're still working out the logistics of creating kits from these, if you are interested, please contact us directly, or just stay tuned here. These are _not_ JLCPCB-produced or...
  11. rabbitholecomputing

    Announcing ZuluSCSI Pico (Open Source Hardware)

    Thanks! The RP2040 resources are in heavy use. In addition to having two Cortex-M0+ microcontroller cores, there are multiple PIO blocks (Programmable I/O), as well as state machines, all of which the ZuluSCSI firmware uses to accomplish its job. The microcontroller itself has 264 KB of static...
  12. rabbitholecomputing

    Announcing ZuluSCSI Pico (Open Source Hardware)

    Today, Rabbit Hole Computing has released a version of ZuluSCSI, derived from our full-size ZuluSCSI RP2040 board design, under an Open Source Hardware License, the CERN OHL-S. The KiCad 7 design files, as well as pre-prepared Gerber files, are available for download at...
  13. rabbitholecomputing

    JLCPCB seems too good to be true

    Isn't that Standard YouTuber behavior? Egocentrism run amok.
  14. rabbitholecomputing

    ZuluSCSI Compact Homebrew - A Smaller, Faster, and More Capable RP2040-based SCSI emulator

    Agreed. The product description for the full-sized ZuluSCSI RP2040 now includes the following: We'd be happy to, but without an explicitly-defined license, we can't and won't use anyone else's designs in a commercial context. There is a comparison table currently, but not on the product...
  15. rabbitholecomputing

    ZuluSCSI Compact Homebrew - A Smaller, Faster, and More Capable RP2040-based SCSI emulator

    Thanks for the contribution, and the feedback. The community would definitely benefit from you sharing the Gerbers. It should be noted that both the full-size ZuluSCSI (and SCSI2SD V5.1/V5.2, SCSI2SD V6) all are designed to with the standard bottom-facing 2.5" mounting holes, as specified in the...
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