Software Support > Automated Projects
Setting up Mame / Mala with rotating CRT (Mrotate4)
DaOld Man:
One problem I see is that when the PC boots up, the comport outputs blink a few times.
I cant solve this through the software. I had the same problem with the printer port, I solved it with hardware.
I found one printer port output that always came on and stayed on when the PC booted. I used a transistor triggered by this output to kill the other outputs paths to the drive until that one output was turned off.
MRotate always turns off all outputs when it starts, so that removed the kill when Mrotate was called.
Cant do that here since I only have two outputs.
So if it is a problem for you, you may be able to use a on delay timer that kills your current drive setup until enough time for the PC to fully boot.
You will just have to experiment to see what you can come up with.
On your setup now, what happens if you press both buttons at the same time?
A schematic drawing of what you have now would be nice, plus it might help others who want to go the rotation route.
Ropi Jo:
I can deal with any lockout delays required. Currently each rotate button is one touch. The system latches the button through relays and locks out the other button. As an added safety, in case the end stops fail, a timer cuts out the rotate 2 seconds after the end stop should have done it's job. Rotate takes around 12 seconds. 1st test took about 5 seconds but that was too fast and couldn't stop quick enough, so would have needed a slowdown. It was simpler to drop the motor voltage from 12V to 7.5V.
When this is all working I will do a write up with as much useful info as possible. It's the least I can do in return for all the great help here.
I'm on a few other furums which are great, but if you mention a mame cab there they all many will hold their noses in disgust.
I think mame is the greatest piece of software ever written, and anything that helps make the experience even greater is awesome.
DaOld Man:
This project resurrection has me thinking about finishing up the mrotate I was working on that used a USB pic chip to control the motor drive.
But what you are doing, I think the db9 version will work just fine, so I dont have to be in a hurry with the USB version.
The drawback to the usb one is that you must buy a pic chip board to get the real world I/O.
Ropi Jo:
Got a bit further with the auto degaus this evening.
Still waiting for the serial board.
But going really crazy trying to get mala to show snaps in vertical orientation. :banghead: :banghead: :banghead:
I've checked and changed every option in the mala config trying to make this work.
I've even reinstalled my old setup mame 151 32bit with mala 174 and I get exactly the same.
I'm using the standard layout that comes with mala.
DaOld Man:
Use malalayout app in the mala folder, open your vertical layout and make sure you have a snap window placed on it.
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