(Topic ID: 278401)

Big Bang Bar Pal chip???


By Astill

3 months ago



Topic Stats

  • 14 posts
  • 6 Pinsiders participating
  • Latest reply 3 months ago by megadeth2600
  • Topic is favorited by 1 Pinsider

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#7 3 months ago

We need someone with a BBB to try to read out the chip.
If the chip fails the aliens will not work properly.
I do not have the code but would also be intrested.

Here is the pcb we are talking about, with the TIBPAL16L8-15CN in the middle.

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#9 3 months ago

The function is as follows:

IN on the pcb:

12 Volt (for the motors I guess)
5 Volt (for the PAL I guess)
GROUND
Coildriver S30 motor forward
Coildriver S31 motor revers

ON on the pcb
Motor +
Motor -

On switching the game on:
Aliens make 1 round and sit in position

In Testmenu Justage Alien Motor
Motor goes one direction on one speed, according optos check position

In Testmenu Coils
S30 motor moves forward
S31 motor moves backward

In Game , watched this on youtube in slow motion:
Motor works powerfull 1/2 round and stopps apruptly ... balls fall out of the mouth.

If I use a pindora motor emi board:
Switching on the game is okay.
Alien Motor justage works
In test menu *ONLY" move forward works

Could not test in gameplay.

So I guess zje backward and stop function are triggered by this chip.

#13 3 months ago

Very intresting informations ! Thank you all !!

On friday a friend comes with a oscilloscope and a homemade motor emi board with test buttons for the directions.
I am sure that he also is reading here and, unlike me, he understands what you write !
Maybe we find a way to pimp up his board with the needet functions !

But I am sure, the code would be helpfull and good to have for the future.

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