psmmacker Posted February 25, 2017 Share Posted February 25, 2017 Has anyone thought of a usb that only send data The reasons why the stm32 discovery gobe nosie is because If the pc gnd is connected to the stm discovery and the power pack Interference issue can happen as the gnd os feed back to the computer I would rewire the usb or bry a cable with no gnd or 5volts just pure Pc data only one white and green no gnd - black or 5volt + red Thanks paul Link to comment Share on other sites More sharing options...
psmmacker Posted February 26, 2017 Author Share Posted February 26, 2017 Tryit dont work but what if we powered the usb 5volts and - from the power pack form the mini usb port and have a data + and - go to the pc usb only Dont know if that would help with interference Thanks Paul Link to comment Share on other sites More sharing options...
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