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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...

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...

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

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...

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...

Hi @flimshaw, as @3lectr1cPPC points out, the benefit of hard drive sleep is diminished to nearly zero when there isn't any mechanical spindle. At idle, ZuluSCSI RP2040 draws about 10-20 milliamps @ 5 volts DC. Therefore, it would be useful to know if this problem simply goes away if you disable...

@RV066 Your ZuluSCSI board is entering raw fallback mode. When it does this, the SCSI ID is hard-coded to ID1. If you observe the activity LED on your ZuluSCSI, you'll see it blink three times, which indicates it did not find any valid images on the SD card. In order for the ZuluSCSI firmware to...

You don't need to use the whole thing, just two lines in a plain-text .ini file with the following: [SCSI] ReinsertCDOnInquiry = 1

Posting this here for posterity, as I had a bit of difficulty finding this non-standard (thanks to the 28VDC needed for ADC) pinout.

@Ortho'sDeli Without knowing how you have it configured, it's impossible to help. How is it configured, currently? What model of ZuluSCSI is it? How isn't it being detected? Be as specific as possible.

@mloret try setting ReinsertCDOnInquiry = 1 in your zuluscsi.ini file.

Thanks, for the feedback, @Qed, however this claim is not entirely accurate. We've updated the documentation to more clearly state when quirks mode is necessary. Quirks mode only needs to be enabled if you need to initialize a blank disk/disk image using Apple's un-patched disk utilities (HD SC...

@mloret, this firmware is quite old. There have been eight firmware releases since version 1.1.1. Before you do anything else, do yourself a favor and get current, because it's entirely possible you're running up against bugs that are already fixed. For ZuluSCSI V1.1, you just need to download...

@joshc I certainly hope so, but if anyone else here would like to distribute kits in the UK, please contact via PM or e-mail.

@Garrett, You might want to check out the new ZuluSCSI Compact Homebrew kit, which may be of interest to you. We just released it yesterday! I've posted an announcement thread about it here...

@1200XL M.U.L.E. Apologies for the late reply. Without knowing which Macintosh machine and CPU you're using, there isn't enough information here to be able to answer definitively, but if it's a 68000-based compact Mac (which the screenshot seems to suggest it may be) then yes, those numbers are...

Following on from our full-sized ZuluSCSI RP2040, which we released back in November of last year (2022), we've got another entrant to the ZuluSCSI family, available for purchase today in kit form, starting at a mere $42, from...

Fixed! Thanks for pointing out the copypasta fail.

We've recently launched our 2.5" ZuluSCSI RP2040 Laptop edition, and we've placed the remaining inventory of 2.5" ZuluSCSI V1.1 Laptop/PowerBook boards on sale, at a price of $55 each. There are only about 45 left as of this writing.

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