I am sharing these visions, strangely to the exact same detail :D
We could compile the improvements here:
https://github.com/izne/DOOM-for-Macintosh/
On my LC630 (68LC040 at 33MHz) there is not much change after the applied patches here. It shouldn't be the lack of the FPU, I guess.
There are...
I happen to have a Macintosh LC630 (68LC040 at 33MHz) and just got the Ultimate Doom 1.0.2 compiled from source on it.
Really interested now to apply your patches and post back the numbers.
I am not yet familiar with CW, but can a profiler of some sort there help see whats going on?
What...
And of course - it works! Thanks a lot! Your support is much appreciated!
I am drafting a small KiCad file in addition for your firmware. Going to transfer the latest updates from the protoboard into it.
Alright, it is good news then - more or less the mistery is clear now!
As this is my first ever exposure to PIC(12), I have misread the sheet that the micro *requires* LVP, so I naively went for that.
I see now what you say that MCLRE has to be OFF in order to have RA3 not be reset only...
Oh, no... I programmed it in a DIY way, using FT232R adapter and PICPgm software with properly mapped pins.
At least the PICPgm verified it after recording and I also checked it at least once again after recording.
It seemded fine, but maybe I have to check this once again. Would it make any...
Yes, I have tried plugging only the keyboard and start. Its lights blink once (gets powered up), and then nothing.
I read in the Microchip AN591 that ADB is open collector and needs a pullup resistor on the other side on its I/O line. I somehow missed that and did not have a pullup there, so I...
On a very brief test, I could not see anything.
First, I tested the board without chip, connected to ADB for power and only the keyboard.
Connected the logic analzer to PS2 CLK and PS2-Keyboard DAT pins (RA2, RA3).
Inside the logic analyzer software, I set a decoder for PS/2 protocol and I...
The keyboard is a good old Cherry "MY 3000 R/M" (G81-3000LRNDE) that is native PS/2. I use it on another computer and it is working. It looks it gets powered up (three lights blink for a second) and the cursor freeze on keypress might mean it is trying to talk back. No other PS/2 keyboard around...
Finally, I took a crack at it!
Programmed the PIC12 and dropped up a minimal circuit board for it.
Mouse is cruising along perfectly, but the keyboard does not work.
I noticed every time I'm jiggling the PS2 mouse and hitting a key on the keyboard simultaneously, the mouse pointer freezes for...
I discovered that the OEM keyboard and mouse are increasingly expensive to obtain.
tishtrio firmware seems great PS/2 to ADB convertor and I am now making a PCB for it.
Happiy
The hard drive sounded like damaged but during power-cycles it continuously improved.
Connected to another machine, the drive looked quite alive and with every next test its performance improved magically.
Working on this beauty Macintosh LC 630 now. Just got the PSU to run and finally was able to test the main board that I recapped with tantalum capacitors.
Hello Gentlemen!
Here is my report of another successful LC 630 PSU (ASTEC AA19300) recap.
Thanks to the original author Fizzbinn for making it easy for us!
It looked like the typical problem that many friends here describe - C8 leaking on top of hot components, C40 also looks compromised...