Bonjour,
Normalement, tu n'as pas besoin de drivers pour le j-pac.
Il est considéré comme un clavier usb et traité directement par les drivers de Windows.
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Sur le site d'Ultimarc, ils donnent ces manipulations à tester:
- Problem: In USB mode, the J-PAC was not detected properly once before and now I can't get it out of this state.
You will need to remove it from Windows and let it re-detect. Go into Control Panel, System, Device Manager, Hardware. Open up the USB controller by clicking on the plus sign next to it. Under this heading will be displayed all the USB devices. Right click on all devices one by one except the controller itself and Root Hubs and select "uninstall". Now unplug and re-plug the I-PAC. It should be re-detected.
- Problem: In USB mode, it is only detected as "Unknown Device" or "device has a problem".
Under certain conditions, shorted inputs can cause this, or inputs that are held at 5 volts. This may happen either because of a wiring error (see steps for checking this, above) or the I-PAC inputs being connected to something other than an open-circuit switch. If you need to connect non-switch devices please email for advice.
[EDIT OFF]
A+
Stéphane