No FFB with DIY cable, at90usb1287, G27 (SOLVED)

[v800290]

throw away these "testcables" and solder the USB<>UART directly to the TEENSy with RXD/TXD

v800290

[paulodeleo]

Yeah, it is on my plans, but only after it is working perfectly. Wouldn't it be the problem, as even the guides recommend making sorderless DIY cables, right? But in the meanwhile, just to be sure, I will test with a different set of jumper cables. Thanks for pointing that out.

[Matlo]

The problem could be the Teensy board. I'm unsure anyone tested the at90usb1287 firmware.
Where did you buy it?

[paulodeleo]

I got it from a friend that used it for xbox 360 nand dumping related things a while ago. It worked fine for this purpose. He bought it from a local store here in Brazil, no idea from where the retailer imported it.

Is there something I could do to test if the firmware is working properly with this model?

[paulodeleo]

Got a new USB adapter, now CP2102 based:



Same results, no FFB.

I also bought Project Cars to test. No FFB with this game too.

Can I debug somehow if gimx is receiving any FFB command from the adapter? Otherwise my next step will be to buy a new teensy with a well known to be compatible processor. But that will be expensive and take some weeks. A much cheaper arduino pro micro based on ATmega32U4 like this would work as an alternative to the teensy? http://m.ebay.com/itm/Leonardo-Pro-Mini ... nav=SEARCH

[Matlo]

Do the controls (buttons, axes) work?
Are the PS4 firmware and the games up-to-date?

[paulodeleo]

Yes, every button and axis work as expected and all input is logged correctly. Ps4 and games updated to most recent versions available.

[yagey]

I think the weirdest part is that you say that FF worked once, but only once.

[paulodeleo]

I totally agree. But I remember it working once very clear. I was making my own config because, at that time, I have skipped installing the LGS and the button mappings were all wrong, so I couldn't handle the cars. I also had random disconnects at that time, like the ones described in other threads. This time the commands stoped being sent to the ps4 during a curve, the car crashed and the wheel kept moving alone caused by FFB, for some seconds until I closed gimx.

Since then I tried a lot to make the same scenario again: uninstall LGS, new configs, wiring... but nothing made FFB return. Bad wiring / solder could explain it but it is all sorderless and I checked the cables multiple times.

Thinking about it now, I remember seeing the leds working once too, and that is something is not working too. Sounds like the communication going from ps4 to the G27 is the problem.

I will try with other computer and maybe linux too, just to be sure.

[Matlo]

Did you check the FFB works on the PC? I think there is a test mode in the LGS.