Modificar Unamiga para tener 6 botones+ Start + Menú (norma megadrive 6 buttons)

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benitoss
PLA
Mensajes: 37
Registrado: 07 Oct 2018, 04:53

Re: Modificar Unamiga para tener 6 botones+ Start + Menú (norma megadrive 6 buttons)

Mensaje por benitoss » 30 Oct 2019, 15:38

Monstronio escribió:
29 Oct 2019, 21:33
With AMIGA layout, the outputs are also in a high level state.
Ok, may the internal pull-up of all joysticks pins inside the FPGA avoid the problem.
What is the solution that you propose ?
We can use 3.3 volt instead 5 volt and we solve the problem

benitoss
PLA
Mensajes: 37
Registrado: 07 Oct 2018, 04:53

Re: Modificar Unamiga para tener 6 botones+ Start + Menú (norma megadrive 6 buttons)

Mensaje por benitoss » 30 Oct 2019, 18:39

Eventually, if we use 3.3 volts instead 5 volt in the pin 5, the Joystick works. So, We are going to recommend that solution.
Mostronio, you are totally right and thanks for the warning !!!

We have already modified the mod and change the power to 3.3 volt.
Thanks again !!!

Monstronio
Veroboard
Mensajes: 14
Registrado: 01 Sep 2019, 21:59

Re: Modificar Unamiga para tener 6 botones+ Start + Menú (norma megadrive 6 buttons)

Mensaje por Monstronio » 30 Oct 2019, 21:07

So. I checked the six-button joysticks for work from three volts. Everyone is working.
I also checked the old original four-button joystick, it also works.
(I checked both with AMIGA layout and with megadrive layout.)

Monstronio
Veroboard
Mensajes: 14
Registrado: 01 Sep 2019, 21:59

Re: Modificar Unamiga para tener 6 botones+ Start + Menú (norma megadrive 6 buttons)

Mensaje por Monstronio » 30 Oct 2019, 21:48

3.3 volts can be taken near the connector.
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