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[TorZidan]

We are completely off topic, but I want to share this:
Code for a SCSI driver for early Macintosh computers, written in 1985:
https://github.com/SuperSVGA/MacSCSI/tree/main
Unfortunately, the full code is not present, only parts of it.

[sigma7]

AI has done what they usually do when they don't know what they're talking about, which is to give you an attractive-looking lie.

I'm intrigued by the potential to train some AI thing by feeding it valid Lisa documents and known-working code. Much easier done by those who (think they) control the AI, but I think the possibility is there for those of us on the outside to influence its learning.

I tried to get Chat-GPT to help me with some 6504 code for BLU; after I managed to correct some misunderstanding it had about the 6504, it could make an improvement, but it would soon revert to its misunderstanding when I tried to get back to the original objective. So as far as I'm concerned, it wasn't ready to learn something new, but I can see how a Chat-GPT expert could make much better progress than I.

[sigma7]

Code for a SCSI driver ... the full code is not present, only parts of it.

The LSAC (and the QuickBoot derivative) has basic bare-metal SCSI functionality for the Lisa SCSI. I hope to open-source the code at some point, but am currently dealing with another's effort to "open-source" another piece of my work before I'm ready to do so, which isn't encouraging for the time-line.

Regardless, I may be happy to help someone else if they take on the LOS SCSI driver project.

[ChiTownMike]

Here is my ESProfile case for the external board that I created for my Lisa ESProfile card.     The inside has slots to hold the board in place I can post more pictures if anyone is interested.

[Verault]

Thats pretty nice. Will you post the STL files?

[AlexTheCat123]

I'm on vacation right now, but I'm planning on adding it to the ESProFile GitHub repo once I get back!

[ried]

Has anyone used the ESProFile with LOS 1 or 1.2? I'm having an issue with an ESProFile connected to a Lisa 1 running LOS 1.2. On cold boot, it starts up and loads Selector just fine, from which I can choose my LOS 1.2 install and boot as normal. When I shut down the Lisa using the normal means, all seems fine.

However, when powering up for the second time (5v power remains constantly applied to the ESProFile), I get an Error 85 that reads "PROFILE READ FAILED." It seems the ESProFile is not resetting itself in a way that the Lisa likes and it's unprepared to support the next boot cycle.

Removing and reapplying power to the ESProFile fixes this.

[AlexTheCat123]

Interesting! I didn't know that LOS printed out error messages; I thought all the error codes were numerical at that point in the boot process. Either I somehow completely missed that when compiling the source code, or it's just an LOS 1 thing.

I don't have a Lisa 1 or any way to install LOS 1 from Twiggies, but can anyone else who does have one reproduce this?

[ried]

It's not an LOS error. It happens right after the power-on self-test, when it tries to load LOS.

[AlexTheCat123]

It's not an LOS error. It happens right after the power-on self-test, when it tries to load LOS.

I know it's not something that you're getting once you're properly booted into LOS, but the LOS bootloader is what's displaying it, right? I know the boot ROM doesn't display textual error messages like that.

[sigma7]

the LOS bootloader is what's displaying it, right? I know the boot ROM doesn't display textual error messages like that.

I believe he is saying the ROM gives error 85 (displayed on the screen), and when he looked up what that means in a document, he found "PROFILE READ FAILED"

[AlexTheCat123]

I believe he is saying the ROM gives error 85 (displayed on the screen), and when he looked up what that means in a document, he found "PROFILE READ FAILED"

Oh, gotchya. Can you connect to your ESProFile over serial and see if it prints any sort of error/debug message when the Lisa tries and fails to read the boot block?

[ried]

A video is probably worth a thousand words in this case. Here's the full sequence:

https://www.youtube.com/watch?v=qxloH3KK0hg

I haven't connected the ESProFile to serial for diagnostic purposes yet, but will give that a whirl at some point.

[sigma7]

the LOS bootloader is what's displaying it, right? I know the boot ROM doesn't display textual error messages like that.

I believe he is saying the ROM gives error 85 (displayed on the screen), and when he looked up what that means in a document, he found "PROFILE READ FAILED"

Clearly I was wrong... is the error text coming from "The Selector"?

[ried]

Well, first Error 85 appears and when prompted to CONTINUE or STARTUP FROM... choosing CONTINUE results in "PROFILE READ FAILED" and the prompts change to RESTART and STARTUP FROM...