Setting up Mame / Mala with rotating CRT (Mrotate4)

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DaOld Man:
Ok, here are instructions for setting up mrotate4.
There is also pics of how to set up start com in mala to run mrotate4.
Sorry if I made any typing mistakes, its late.
I have laid them out in the order that you need to go by to set it up.

Main menu:

Comport connections:

Comport settings (mscomm32.ocx)

Outputs and Inputs:

Time limits:

Options:

Sounds:

Test panel:

About:

Mala plugin options:

Mala startcom:

Good luck, and holler if you need help, and let us know how it turns out.

Ropi Jo:
That is fantastic and so kind of you to take the time and trouble.

I'm off out with the family for a 90th birthday meal so will try to implement all this when we get back and update.

BTW... it's not my 90th!

DaOld Man:
Safe travels and tell them Happy Birthday from DaOld Man.

Ropi Jo:
Today I installed the serial card and mrotate4. Followed your step-by-step to the letter...... and it worked exactly as you described. Used a couple of LEDs with 1K resistors and could see the outputs doing their thing.

As you also said, there is quite a bit of activity during windows boot so need to block the outputs for about 30 seconds, which is no problem. Also will add some blocking diodes for the -ve voltages you mentioned.

Salvaged a couple of optos, transistors and relays from some old boards and started with the interfaces.

Getting real close now!

Ropi Jo:
Built the interfaces today. One of the 2 didn't work straight off and while investigating I blew up the opto, the back emf diode and the switching transistor. Decided I was doing it the hard way with pnp switching so redesigned and built both with npn. Much simpler and both worked 1st go. Using a 10K current limiter into the opto I only draw 0.45mA from the 5v test supply so very pleased with that. When I add the blocking diode I may need to drop the 10K a bit lower. Then just got to add the 30 second lockout timer and it'll be ready to hook up

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