Five Rockets and interface card for a six-slot NuBus expansion chassis = five dedicated VidCards for the Rockets and room for a NIC? Six VidCards if you wanna share the IIfx MoBo on a sixth display and go with SCSI Networking. Gaaaaah! 🤪
Didn't notice you show DB-25 on that card? Sub-standard Mac connectors/cables for SCSI aren't even close to connectors/cables rated for Fast/Narrow as on the Radius Daughtercard. Alternating ground, 50 pin IDC ribbon cables for internal use are standard for Fast/Narrow.
May not even need the PicoPSU? Offer accepted on LCD/Controller with a 12V input, same as CM4!
Might a very simple Capacitor/Resistor board do the trick? If I go with the PicoPSU all I'd need would be current limiting resistors on two of the 12V lines.
Looking good for a setup running off the...
Very, very nice. Gotta love that internal SCSI II connector. ;)
edit: if external connector is unimplemented can you use a blank metal cover plate behind it and the Rocket. No printed bracket required?
That's what I meant, I've typed PDS so many times DSP just wouldn't roll off my fingertips! 🤣
Card above is minus, the DSP connector:
Gotta run TattleTech to find out what model it is, guessing Futura II SX, but w/o provision for DSP. I've never seen one like that.
Both my cards lack the...
🤣 The OEM brick is a great example, thanks! PicoPSU 12V input jack replaces the Duo's power input jack, no brick inside.
Only the PicoPSU is enclosed within the Duo case. Don't have power requirements of all components or the peripherals in hand as yet.
Duo is worst case scenario and a handy...
I've got a high output model/power brick on hand and a 160W PicoPSU on the way. Using the 160W unit inside a Duo case to power:
RPi Compute Module 4
RPi Pico KBD Matrix to USB Converter
Duo TrackBall (ADB)
ATmega32u4 based TrackBall to USB Converter
10.1" 1920x1200 LCD/Controller
Assumption...
Knowing < jack, I'm curious about your image. Is it set up with Mac emulation as shown? If so, what System is up and running out of the box?
Installing I/O Board/Compute Module 4 in a dead Duo 280, not so worried about networking. If not, are there any images with Mac emulation/Linux ready to...
What was the transfer rate of SCSI Slow/Narrow on Sun workstations, others? SCSI on the Mac was an abomination.
Indeed, it also sits on the Rocket's 33MHz PDS. Fast/Narrow SCSI isn't 5MB/s, the spec is 10MB/s for the Rocket's SCSI II Daughtercard, no? Got a link to that LEM Gem? They got...
Fabulous work, can't believe I missed it! Thanks for reviving the project as it opens up some very interesting possibilities.
Off label use of Rocket supplement:
Haven't played with my IIsi/Rocket hack in quite some time as it only works under RocketShare. Wondering if ROM modification might...
OK, it's Friday night in my world, so whilst partaking in adult beverages, I've pieced together the clearest diagram I can manage at this point:
All connections from edge card to Slot_A are 1:1. Reserved pins of PCI spec hijacked for nefarious purposes by Apple for additional slots are...
Aha! Thanks for that reality check. Hadn't noticed that. 😳
The only DOM drives I've bought so far are untried, but because the do not have that "standard" DOM interface. I need to build adapter PCBs to use them flipped over atop the Tempo-trio card setup in the top position of the proposed...
Spotted what might be confusing in the ancient Buzz-Lines-020-710 diagram and in the detail pic above. Resistive connections to Init Device Select of Slot_B and Slot_C are tied to address lines on the 1:1 connections of the address bus. Ignore the "tails" pointing down toward the Logic Board...
For R1 and R2 values I'll have to get back to you. It's somewhere in the threads, likely over on TD. Original sketch for MechanicalDoodle shows the resistive connection setup for Init Device Select clearly. Neglected to put that detail in the AI file. Resistive connection for Slot_A is made on...
Been trying to get Slot_B clearly documented. You can probably figure the schematic out from This file, which I think is more akin to a KiCAD schematic than my plumbing:
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