ForoFPGA

Hi ALL!!! Has anyone already tried the configuration - https://github.com/benitoss/CycloneV_UnAmiga_v2 ? (( Actual Scheme is now available in the post antoniovillena )) I found some problems. The joysticks ports not work correctly. The main problem is that the “load” and “shift” signals are mixed up...

3.3 volts can be taken near the connector.

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.)

With AMIGA layout, the outputs are also in a high level state.

It is passive !!! NoOoOoOoOoOoOp! After applying voltage, the joystick has a high level of outputs. More than 4.6 volts !!! I just checked it on three different joysticks (of course, Chinese ;) ). And I remember exactly that the original four button joysticks have a multiplexer without a Z state.

works in a passive way The Chinese guys may have their own vision on this subject ;) I would not connect the SEGA joystick without checking. For the first start, I still recommend connecting a joystick up to three volts. I think this is not a problem for the joystick. My keyboard and mouse work fro...

I meant that if we connect the joystick to five volts, then the level of the logical unit at the output of the joystick will be five volts. I do not think that at the output of the joystick, instead of a logical unit, there will be a state Z. Especially if it's a Chinese joystick.

I think it's a bad idea to use a SEGA joystick without a buffer.
Cyclone IV is not tolerant to five-volt signal levels.

If you have saved .SOP file, please attach to this topic. It is needed to convert to .RBF file.

OK