Outbound Laptop repair/reverse engineering

[zigzagjoe]

Yeah 8 modules, I tried both 1MB and 4MB modules in the RAM disk slots, as well as none at all, the behavior is always the same.
I would open the control panel if the mouse worked. I think the EEPROMs are version 1.2.1, I can't remember if I updated them.

I also accidentally discovered that if you just give it 1MB of RAM at 0x600000 it will gladly make a 1MB RAM disk out of that, so I'll have to see exactly how that works, I would have thought it would be doing some sort of bank switching.

That is interesting - I expected the same. Especially as they supposedly support up to 16MB in the ramdisk. How are you giving it RAM, poking bytes with microbug? Supposedly there's a modified version of macsbug, but i doubt that will ever materialize...

Keeping forgetting your mouse is nonfunctional. Something that might be interesting to test wrt your mouse issues is if click works. In the boot position it'll at least click on the apple menu. You could also test this by sticking a jumper in the mouse port according to the pinout above.

 

[SuperSVGA]

How are you giving it RAM, poking bytes with microbug? Supposedly there's a modified version of macsbug, but i doubt that will ever materialize...

Just in an emulator. I think I got the RAM disk working in it now, looks like there's just a few registers for controlling the address lines on the RAM.

 

[zigzagjoe]

You're using an emulator to roughly fake up the docked outbound + se/plus address map then? Clever, I like it!
I've not done much probing of the address map other than identifying some IDE registers.

Incidentally, the shut-off-when-base-closed function is done by another reed switch buried in the power module, so you can take your NMI magnet and place it on top of the serial sticker for a hard shutdown. Or drop the NMI magnet.... guess how I figured that out.