AnsweredAssumed Answered

USB bootloaser does not work

Question asked by vovk.dmitriy on Jul 17, 2016
Latest reply on Feb 18, 2018 by Matt Hollands
So, hello everyone. I have a problem with starting bootloader using USB cable.
I think i did all conditions to provide this mode. 

NUCLEO F070RB. Win10, Win7

HSE(crystall) 12 MHz works fine in Led-blink project. BOOT0=1, nBOOT1=1(Checked).
Windows have no any reaction after connecting USB (D+, D-, GND)!
If i add pull-up resistor on D+ or D-, windows can see "Unknown device" with wrong descriptor. 

Please halp me!