MameHooker wip (2013)

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Howard_Casto:
Yeah I've figured out the speed as well, it's in there.

I don't have my notes with me, but it's something like 128 for left direction and 145 for right and then +1 to +8 on top of either value for speed.

They always send left+1 then right+1 whenever in idle. The only thing I can think of is that it's actually a 7 speed system and +1 means no speed. But there is a value for no movement as well, so I dunno.

Xiaou2:
Well, 'off' and 'broken' may be the difference.

By sending a signal constantly in a certain frequency.. it can establish weather theres a
response, of if something mechanical has stopped working.

At least, thats the logic that makes most sense to me.

I also wouldnt doubt that theres several speeds also.

Howard_Casto:
No in Mame I've got the limit switches hooked up and the game passes the startup test if the limit switches are pressed at the appropriate times. Passes the i/o board test as well.

Definately not broken.

Xiaou2:
I didnt mean that.

I meant, that if you were riding in the games seat... and the motor was seizing up, or failed completely, the game would realize that there was a problem.

Pots and Switches can fail as well... But a motor issue, if not taken care, could overheat and cause a fire. Also, motor brushes that wear too far down, can cause sputtering effects. Such an effect would be unwanted... so the games designers may have anticipated that, and had a shut down system in place.

It may have also to do with someone body part getting trapped inside the mechanism, and crushed.

It also could have been to make sure the motor board was working properly. No problems with communications... or any other issues.

Also, remember that standup motor only goes in one direction. So a left to right signal wouldnt make sense... nor would any slow motor movements of the sliding plate wheel mount, while playing. You certainly would notice it.

And finally, it may be that the signal was a sort of motor test, that wasnt powerful enough to actually move the motor... but just send enough current to form a completes measurable circuit. By measuring the returned resistance, able to tell if there were any issues.

Edit 3:

Also, do you have the magnetic centering switch also hooked up? So, it should be 3 switches.. Furthest Left, Furthest Right (turn worm gear forwards and backwards), and Centered Sensor.

If the cabinet does not read centered, it may try to center it, by vollying left to right. The analog pot also has to be in the proper range.

80h seems to be the value that is mentioned as the standard default.
The picture shows 7ch to 84h in a box, but outside the box, it lists the Min= 3c, max C1.

Howard_Casto:
The upright cabinet uses a totally different output system. It's just off/on.

All of this talk is irrelevant barring somebody taking a real outrun machine and hooking up a logic analyzer to the i/o board.

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