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Late here but I've got a prototype ESP that converts the video from Omaha running in black and white to MIPI-DSI (so PowerBook 140-145 to a modern screen) Can confirm the timing findings above. It's basically 2 640x200 screens Unfortunately the ESP revision I'm using is broken (many DMA issues...

Got it, make sense. Tried to do something similar with Sonnet 4.6 (CC harness as well), it was stuck sometimes on some function calls. (My use case was trying to make it rename a ghidra disassembly output, I managed to have it off by giving it three different disassembly sources), otherwise the...

What model did you use ?

Has anything used it ? I've got the impression it was always some sort of tech demo. By the way the feature has been merged into Snow, it will be available in the next version :)

How wide are the 1400cs ROMs ? We were assuming 8bit wide ROMs

Hmmmm... The VIA cannot generate an interrupt on click and you checked the connectivity and the VIA so it isn't a VIA issue. Random idea: the mouse click is probably polled @ VSYNC. Do you have a pulse on pin 40 (CA1) ? Does the IRQ line kinda follow on pin 21 ? If yes follow the IRQ to TSG...

My man hoarding again! Welcome back :p

Thank you! It was worth it. People are already working with it There is a Snow PR as well. Thanks! KB030514 is the one I remembered. Plenty of other info at this archive... like this driver was created for System 4.3. Might explain some of the spaghetti code

Thank you, very much appreciated I've tested three of them for this work just to double there isn't any obvious differences: - LaserWriter IISC, (from a 6.0.5) - Personal LW SC 7.0.1, which is a standalone floppy - Personal LaserWriter SC, from 7.5.0 (actual version 7.0.1 as well) Starting...

Repo is giving me a 404. Was that moved somewhere or is it GitHub aiming for 80% uptime ?

Adding more info. Typical sequence A typical printing sequence will look like below. Here is a the driver printing a SimpleText file with the following content: INQUIRY [12 00 00 00 05 00] INQUIRY ⇾ DataIn [02 00 … FE 20 27 20 FF] INQUIRY [12 00 00 00 24 00] INQUIRY ⇾ DataIn [02 00 … FE 20 27...

They did try at some point with the NT board, but it was by emulating the controller board. Both boards differs in significant ways (IISC being SCSI + "QuickDraw", NT being Serial + Postscript for a start), but will share unsorted hardware notes if needed. (I'm stuck at recreating the HAL...

Looks like you did a lot of testing. Do you have OG ROMs ?

Hello everyone, Got sidetracked since a few month, ended up doing this... Decoded most of the LaserWriter IISC SCSI protocol and figured I should post it here, it's probably interesting for the Snow or PiSCSI team (poke @slipperygrey) I do have a complete Snow implementation as well, please...

Offtopic, now I kinda understand why you made 5 Design68s :) Anyway, nice job, looks very useful

Offtopic but very useful writeup!

Just as a note if other people end up there: You cannot select a IIsc or Personal LaserWriter SC in the chooser list (on the right, where AppleShare servers pops up) The list doesn't work and is unused. What the driver will to is actually scan your SCSI bus and use the first compatible printer...

Hello, This is a far shot but: Got three IIsc logic boards, and I'm unable to select the printer on the chooser. I think I got the right driver (LaserWriter IIsc from early system 6, Personal LW SC for late versions and System 7). What's happening: the boards do boot up and after about 10...

Yes that's what's finicky about this board. That RC circuit. I mean it's Voodoo level: in a couple of boards I had to "pair" the ATFs as well (like you do on audio amps), in order to have the correct sink/source capabilities so the RC circuit would do the correct timing. The orignal EP320 were...

Well they are part of the SCSI termination circuit. You are supposed to have termination on both ends (the host and the last device). However they are specific cases where you can commit one of them, and have only one device do all the work (usually an active terminator does work fine with short...