I am one of those that is trying to figure this stuff out as I go and have run into a snag that I cant get past.
I am building a MAME machine and am using a GGG GPWizMax USB as my encoder. My CP has in it the following:
2 8-way JS with 6 buttons ea
1 and 2 player buttons
1 and 2 player coin buttons
Trackball
Spinner
2 buttons for the trackball and spinner to share
I have the GPWizMax and the Opti-Wiz boards to help me connect this stuff. I have so far successfully wired and use player 1 JS and 6 buttons. I have wired JS#2 and buttons also but cannot figure out how to get MAME or my FE software (GameEx) to recognize them. Additionally I need help figuring out how to get the P1 and P2 and the 2 coin buttons to be recognized. I have wired the JS#2 as buttons 9-12 and the 6 buttons on JS#2 as 13-18. PLayer 1 and Coin #1 buttons are buttons #8 and 9 and player #2 button and coin are buttons 19 and 20.
For the Opti-Wiz, I have only wired up the Right and Left buttons and they seem to work well as I use the left button to fire in Tempest while using my mouse to move in the game. I am still trying to figure out how to wire up the trackball and spinner to the Opti-Wiz so help here would be appreciated too.
I have to warn you all that I do not really understand all the axis and cfg file stuff, as I said, I am a ntotal novice and probably should not have taken on such a project but I have jumped in with both feet and there si no turning back at this point. GameEx seems to work well. I am running MAME32.
Anyone able to help me?