[nas-2000] Re: Bootloader - cheap JTAG here..
- From: "Alfred Bruckner" <alfred.bruckner@xxxxxx>
- To: <nas-2000@xxxxxxxxxxxxx>
- Date: Thu, 3 Jan 2008 12:36:52 +0100
Hi everybody,
there is a solution to recover the bootloader!
Pls have a look at http://nas2000.homeunix.com
Good luck,
HWguru
> -----Original Message-----
> From: Alfred Bruckner [mailto:alfred.bruckner@xxxxxx]
> Sent: Sunday, November 25, 2007 4:42 PM
> To: 'nas-2000@xxxxxxxxxxxxx'
> Subject: RE: [nas-2000] Re: Bootloader - cheap JTAG here..
>
> Hi,
> if you cannot access the JTAG port with some commercial SW like OCdemon
> there is maybe the connection of Pin 8 and 15 on the parallel port
> connector missing.
> You can find a wiggler schematic here:
> http://wiki.openwrt.org/OpenWrtDocs/Customizing/Hardware/JTAG_Cable
>
> Alfred
>
> -----Original Message-----
> From: Alfred Bruckner [mailto:alfred.bruckner@xxxxxx]
> Sent: Tuesday, November 20, 2007 7:31 PM
> To: 'alfred.bruckner@xxxxxx'
> Subject: RE: [nas-2000] Re: Bootloader - cheap JTAG here..
>
>
>
> -----Original Message-----
> From: Alfred Bruckner [mailto:alfred.bruckner@xxxxxx]
> Sent: Tuesday, November 20, 2007 1:05 AM
> To: 'nas-2000@xxxxxxxxxxxxx'
> Subject: RE: [nas-2000] Re: Bootloader - cheap JTAG here..
>
>
> -----Original Message-----
> From: nas-2000-bounce@xxxxxxxxxxxxx [mailto:nas-2000-bounce@xxxxxxxxxxxxx]
> On Behalf Of philipp Wehrheim
> Sent: Tuesday, November 20, 2007 12:54 AM
> To: nas-2000@xxxxxxxxxxxxx
> Subject: [nas-2000] Re: Bootloader - cheap JTAG here..
>
>
>
> Asure wrote:
> >>
> >> Default User schrieb:
> >>> Where i can find that product, can you gimme any image of JTAG adapter
> >>> i need to reflash bootloader?
> >>>
> >>> On Nov 19, 2007 9:18 PM, flipstar@xxxxxxx <flipstar@xxxxxxx> wrote:
> >>>> Hey Default User / Kenshin
> >>>>
> >>
> >> Please reread the next line:
> >>
> >>>> the only way to reflash the bootloader is via a JTAG Adapter ...
> >>>> Alfred and Jerkball are working on this ... so stay tuned!
> >>
> >> END
> >>
> >> You'll have to build the JTAG adpater yourself.
> >> BUT IT IS NOT FINISH YET
> >>
> >> --
> >
> > Ok ok.. here's one for ~9 euro's ex shipping.
> > http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItem&item=120185102114
> > With a decent length of printercable you can go a long way, and no
> > worries about
> > the resistor-based wiggler type cables.. This is the real thing.
> >
> > I have bought from this guy before, he's ok & fast. Haven't used the
> > adapter yet, i
> > bought it for some realtek device, that i need to solder wires to the
> > cpu.. bah..
> >
> > So, where's the unsoldered JTAG port exactly on the board, and what's
> > the pinout ?
>
> It's called "J5" next to the (unsoldert) USB-Port.
>
> http://nas-2000.org/mwiki/index.php?title=Image:Board_port.png
>
> No idea about the Pinout -> Alfred, Jerkball?
>
> --
> flip
>
> >
> > - Alex
> >
> >
> >
>
> Hi,
>
> pinout should be like ARM-JTAG Wiggler compatible port.
>
> 3V3 1 2 3V3
> NTRST 3 4 GND
> TDI 5 6 GND
> TMS 7 8 GND
> TCK 9 10 GND
> 11 12 GND
> TDO 13 14 GND
> 15 16 GND
> DBGRQ 17 18 GND
> DBGAC 19 20 GND
>
> I could not get useful communication through JTAG till now,
> Alfred
>
> --------
>
> Hi,
> for being able to access the CPU through ARM compatible JTAG you need to
> short the two pins where R160 is missing.
>
> But be very careful when soldering on the board!
> ESD may damage the board.
> http://en.wikipedia.org/wiki/Electrostatic_discharge
>
> Good luck,
> Alfred
Other related posts:
