[Hackrf-dev] HackRF-dev Digest, Vol 27, Issue 9

[Tony Hagen]

Is there any one who can tell me where the bootloader file is stored in hack 
rf if it’s a fresh hack rf with no firmware loaded

Like to know which which Chip in the Schematics


73s
Tony
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Sent: Wednesday, February 18, 2015 12:01 PM
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Subject: HackRF-dev Digest, Vol 27, Issue 9

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Today's Topics:

   1. External Clock (James Brown)
   2. Re: bricked hackrf (Robert Feldner)
   3. Re: External Clock (Michael Ossmann)


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Message: 1
Date: Tue, 17 Feb 2015 08:09:40 -0800
From: "James Brown" <Jim at SETI.Net>
To: <hackrf-dev at greatscottgadgets.com>
Subject: [Hackrf-dev] External Clock
Message-ID: <0F35FB1056214C3D97AC57CA942310BA at Zeke>
Content-Type: text/plain; charset="iso-8859-1"

I would like to lock my HackRf One to a GPS disciplined 10 MHz clock. Its 
output is a +/- 500 mV signal.
Must this be conditioned to drive my HackRf?
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Message: 2
Date: Tue, 17 Feb 2015 20:21:40 +0100
From: Robert Feldner <robert.feldner at gmail.com>
To: Dominic Spill <dominicgs at gmail.com>
Cc: hackrf-dev <hackrf-dev at greatscottgadgets.com>
Subject: Re: [Hackrf-dev] bricked hackrf
Message-ID:
<CAFU+DCrs3+aNoZBKMn0N8ajoyJha9y_FzMBC83FZpxDEUAAs0Q at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

hi dominic!
thanks for helping -)

it does not show up in lsusb, neither with dfu pressed or without:

Bus 002 Device 005: ID 1690:0741 Askey Computer Corp. [hex]
Bus 002 Device 004: ID 1fea:0022
Bus 002 Device 003: ID 08ff:2550 AuthenTec, Inc. AES2550 Fingerprint Sensor
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f3:01a4 Elan Microelectronics Corp. Wireless
Keyboard
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

and with dmesg i cant see any difference if i plug it in or out :-(

any ideas?

2015-02-15 23:21 GMT+01:00 Dominic Spill <dominicgs at gmail.com>:

> Hi Robert,
>
> On 15 February 2015 at 18:52, Robert Feldner <robert.feldner at gmail.com>
> wrote:
> >
> > after finishing the update and rebooting the hackrf it suddenly went
> dead -
> > that means no leds, just a barely heareble buzzing from somewhere in the
> > near of the lpc4320!
> >
> > i tried with different cables, different computers, pressing dfu-button
> when
> > powering up, pressing boot and dfu and releasing dfu first -
> > no success!
> >
> > do you have any idea what i could do now?
>
> When you connect the device while pressing the DFU button, does it
> appear to the host at all? Does it show up in lsusb?
>
> If it enumerates to the host then you can use the recovery process
> here:
> https://github.com/mossmann/hackrf/wiki/Updating-Firmware#recovering-the-spi-flash-firmware
>
> Thanks,
>   Dominic
>
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Message: 3
Date: Tue, 17 Feb 2015 15:32:28 -0700
From: Michael Ossmann <mike at ossmann.com>
To: James Brown <Jim at SETI.Net>
Cc: hackrf-dev at greatscottgadgets.com
Subject: Re: [Hackrf-dev] External Clock
Message-ID: <20150217223228.GA3629 at ossmann.com>
Content-Type: text/plain; charset=us-ascii

On Tue, Feb 17, 2015 at 08:09:40AM -0800, James Brown wrote:
>
> I would like to lock my HackRf One to a GPS disciplined 10 MHz clock.
> Its output is a +/- 500 mV signal.
> Must this be conditioned to drive my HackRf?

Yes, you'll need to convert it to be 0 to 3 V.  See:

https://github.com/mossmann/hackrf/wiki/HackRF-One#external-clock-interface-clkin-and-clkout

Mike


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End of HackRF-dev Digest, Vol 27, Issue 9
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