Connecting the mini-USB cable to a comp. my Papilio DUO board powers up (Power LED lits up and a green 'LED' blinks), but no USB device appears in my Device Manager nor try even to connect a new one. I checked several cables (one I use in my LPC-Link IDE successfully) and several computers with Windows 7, 8, 10. When I switch to micro-USB, I get a port for AVR. Papilio-loader reports: 'Could not access USB device 0403:6010'. Of course .
I see a couple of similar publications in Forum but a total miss of reaction to plugging USB cable didn't match.
I will appreciate any help.
P.S. 12MHz osc. of FTDI does not work.
pin 36 SUSPEND# = 3,3V (active low when USB is in suspend mode)
pin 60 PWREN# = 2,5V ( =1 USB SUSPEND mode or device has not been configured)