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@David Cook We just fixed a long-standing bug in the ZuluSCSI code base related to this, and I've cut a development preview release. Now, if you set the read-only permission flag on an image, it is properly exposed as read-only when the MODE SENSE command is issued by a host machine. This will...

Nope, it absolutely does not mean that. The operating system on the computer still has to be able to understand the filesystem to be able to read/write to it. It isn't magic. That said, with a utility such as HFSExplorer or FuseHFS, you can use the two in tandem to achieve this sort of goal.

Just over two and a half years ago, Rabbit Hole Computing developed and brought to market the first RP2040-based SCSI emulator, which represented our second-generation ZuluSCSI. Since then, we've been hard at work, implementing support for the new Raspberry Pi Pico 2 and Pico 2 Wireless, which...

I'm pleased to report that in the days since this initial announcement, this new functionality has been improved upon significantly, and has now been incorporated into the v2025.01.09 firmware release, the first ZuluSCSI firmware release of 2025. This release supersedes the previous preview release.

There's also an operational USB serial console that logs some basic information about what is going on, which you can connect to using any terminal emulation app. The output will show you the device it detects, as well as quasi-real-time calculated transfer/throughput rates, and any errors it...

For anyone who might have a use case or interest in the ability to read and write to SCSI HDDs on "modern" machines/operating systems (any OS that supports USB Mass Storage Devices/flash drives), check out the latest ZuluSCSI firmware preview release, which enables most ZuluSCSI RP2040 boards to...

@Shyzah FWIW, all you need to do is set System=MacPlus. All of the other parameters are set by the first key/value pair, and are therefore not necessary.

Rabbit Hole Computing is proud to announce ZuluSCSI Pico Slim, the smallest SCSI emulator in the world* (that we know of). Inspired by @zigzagjoe's original SillyTinySCSI, we wanted something that would have fewer clearance issues on the largest variety of Macs. The ZuluSCSI Pico Slim enclosure...

I figured. No worries! We all have our strengths and weaknesses. Thank you for your contribution!

@stormy For what it's worth, GBSCSI2 is a hardware design that's derived from ZuluSCSI Pico OSHW board design, which is Open Source Hardware. Rabbit Hole Computing released ZuluSCSI Pico under the CERN Open Hardware License (Strict variant) version 2.0 back in October of last year. GBSCSI2 runs...

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.

@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...

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...

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...

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

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...

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...

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.

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.

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...