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FWIW, I just got 2 of these in my big haul of compacts. That "connector" is TERRIBLE. Don't touch it. It's incredibly delicate. Just inserting and removing the board from the case can cause contacts to come out of alignment and the machine to not boot. It's kind of unthinkable that was...

Serial disk working at 57.6kbps for System 3.3 on 512KE. 57.6kbps is actually pretty snappy on these machines.

For anyone else who happens to be doing development for these really old systems, CodeWarrior's application glue (the stuff between double clicking and when main() is entered) unconditionally calls StripAddress on the pointer to your code resource before jumping into it. These older systems...

For future reference, that's "the Mac OS serial driver". When you say you want to access something "directly", that typically means you want to bypass the driver and talk to the hardware directly. In your original post, you explicitly said you didn't want to use the driver mentioned in all the...

Baby steps towards doing something interesting: I've got an appletalk server that broadcasts out events (mouse location, mousedown/mouseup, keydown/keyup, etc) and a client that listens to it. The mouse tracks ok, and key commands to manipulate menus work. I have learned something neat about...

The DB9 video connector goes to a passthrough adapter that sits between the analog board connector and the logic board. There's also a clip that goes off to the LS04 chip next to the ROM. It is labeled N^2 Products, I believe. There are no Platinum 512k's AFAIK, and all the 512KEs are...

Final tally: 128k: 1, working 512k: 6, 3 of which have dim/nonfunctional displays 512ke: 9, working Plus: 9, 1 of which has nonfunctional display Other notables: 3 of the 512k's have MacRescue's on them with DB25 SCSI ports in the battery bay. 1 of them isn't booting, probably because of...

25 compacts of varying configurations from stock 512k's through Plus, including several 512k's with SCSI and one with what I'll assume is an external display adapter of some sort. None are in all that great of condition, no keyboards or mice. I'm thinking I first need to do some nifty...

dougg3: for the timing, this is my understanding: The memory controller (GLUE/OSS/MDU/whatever) will terminate the bus read/write with a /BERR at the end of the 4th clock cycle (68k read/write operations take 4 cycles) if it hasn't already been terminated with a /DSACK{0,1} or /STERM or...

Thanks for the information Gorgonops. I'm going to mull this over a bit. I'll be picking up a mixed lot of 20 compacts in the 512ke/Plus vintage tomorrow and will try experimenting with software for that era of machines. System6 changed a lot of the interfaces and possibilities, and I'll have...

Some semi-focus notes on the subject of peripherals: The SE makes a pretty decent prototyping machine. It has a connector for ease of accessing the signals, it's slow, but most important, the entire 24bit address space is valid (the peripheral bus is only 24 address lines). For all Nubus and...

Huh, I hadn't seen those before. Is this what you're describing? I'm trying to sort out some of the details of the interface. It'll probably need some changes to show up in the right place for the Mac's address space. Still, very interesting, thanks for the pointer. I'll read some more...

Short version is: there's an abundance of people that want this or have ideas on how it could/should be done, and a shortage of people doing something about it. It doesn't help that every time someone does do something, someone else helpfully says you should have used an FPGA and then doesn't...

Who cares? says the one complaining of LEM inaccuracy and everymac ambiguity when just trying to compile a list of LCDs for two models of PowerBook! :lol:

It would be interesting to just have a list of what constitutes "complete". It seems like there are a lot of region/channel specific variants, along with changes made during the production of a given model. The two different Mac II ROM variants, the 3 different Plus ROM variants, beige vs...

I've got a 9600 I use as my primary System 7 dev machine, and I use the Radeon 7000 w/64MB of RAM to be able to use 1920x1600 DVI. Does your Radeon 9200 work from ROM? Or does it only work after the driver loads? I'm also using the Sonnet SATA card with an SSD. It's a nice upgrade from SCSI IMO.

Alright, it was eating at me knowing this is such a simple control panel and wasn't working on System 6. Fixed.

SetDateTime() takes a 32bit quantity specifying the number of seconds since January 1, 1904. I'll just assume that's 2040 like previously mentioned. :) That's what this technote seems to say too.

I somehow missed this. FWIW, user adh1197 asked me for this back in February. Anyway, I hacked up this control panel that works on System 7, but probably not System 6. If there's interest in System 6, I can fix it. adh1197 did the icon. It looks terrible (I suck at UI), but should be...

Heh thanks, I'll take the compliment but appearances can be deceiving. Specific knowledge from reading the datasheet shouldn't be mistaken as actual understanding. :)