[Hackrf-dev] Hackrf One not detected and no usb led

[alex.dcaw at gmx.de]

Hi Martin,

I didn't try another USB cable, but I used the USB cable from the HackRF One for another USB device (RTLSDR stick) and it worked fine!
The DFU button probably is NOT broken, because pressing the button changes the LEDs.

Thanks,

Alex.

> Gesendet: Montag, 02. Mai 2016 um 17:07 Uhr
> Von: "Martin Smith" <martin_z_smith at yahoo.ie>
> An: "Aex Weiß" <alex.dcaw at gmx.de>
> Cc: hackrf-dev at greatscottgadgets.com
> Betreff: Re: [Hackrf-dev] Hackrf One not detected and no usb led
>
> That suggests one of three things to me. The CPU is dead, your DFU
> button is broken or your USB connection is bad. Have you tried a
> different USB cable ?
> 
> On 02/05/2016 10:11, "Aex Weiß" wrote:
> > Hi Martin,
> >
> > thank you for the reply!
> > Yes, I'm actually using DFU mode.
> > My Workflow is:
> >
> > 1) No USB Device is connected. Now I start "lsusb" for the first time.
> >
> > 2) Now I take the HackRF one, hold down the DFU button and plug it into a USB port. I release the DFU button.
> > Now I wait for approx. 30 seconds and then I run "lsusb" again. The list of entries is identical to the list of the first run, where no external USB device was connected.
> >
> > 3) I did another test using a RTLSDR USB with the USB cable of the HackRF and everything ("lsbsub" and the fm reveiver example of gnu radio) worked fine.
> >
> > thanks,
> >
> > Alex.
> >     
> >
> >> Are you actually entering DFU mode ?
> >> Hold down the HackRF's DFU button (the button closest to the antenna
> >> jack) and plug the HackRF into a USB port on your computer. After the
> >> HackRF is plugged in, you may release the DFU button.
> >>
> >> DFU mode is stored in a ROM within the CPU, created by NXP the
> >> manufacturer, of the LPC4320. DFU mode not working, would be unusual.
> >>
> >> In DFU mode you should see a green LED (and a dimly lit red and orange
> >> LED) and running "lsusb" on the Linux command line should show a device
> >> "ID 1fc9:000c NXP Semiconductors" connected to some USB port.
> >>
> >> On 30/04/2016 08:16, alex.dcaw at gmx.de wrote:
> >>> Using DFU mode doesn't change the output of dmesg or lsusb.
> >>
> >> _______________________________________________
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> >> HackRF-dev at greatscottgadgets.com
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> >>
> 
>