Well, a PIC programmer for a serial port is nothing more than 4 or 5 resistors, some connectors and a power supply. At least for legacy serial ports. A programmer for AVRs is a little more complex, it requires an IC as far as I read. I never had an AVR, too, but I'm pretty used to fiddling around with PICs.
mat h schrieb: > I tried to build a programmer for a pic i failed miserably and in the > process destroyed 3 pics at 9.95 each! Never again. Ill stick to the > software side thanks > > On 10/5/07, * MsTiFtS* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: > > Come on, building programmers is a lot easier than building that JTAG > finder and these Mega32s aren't that expensive... > > mat h schrieb: > > If I had an ATMega32 and a prgrammer for it I would attempt building > > one but since I dont I wont. ;( > > > > On 10/5/07, *MsTiFtS* < [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>> wrote: > > > > Sorry, I have neither a dissected iPod nor an ATMega32 lying > > around here :( > > In the presentation they stated that they found the JTAG > ones out > > of 30 > > pads in a few hours using that finder. With 15 pins it will take > > 1/8 of > > the time. If can rule out a bunch of pads because they are > tightly > > connected to ground or VCC (not pullable through 330R > resistors), you > > can probably reduce the pad count to about 10 pads. That's > 1/27 of the > > time they needed for their 30 pins. So I think it's worth a > try, > > but as > > I said, I won't open my nano to do that. If I manage to get > one with a > > broken display/battery/etc. I'll do it. > > > > JD schrieb: > > > I read the paper long ago and I continue to think it's too > > difficult > > > but if you want to try... be my guest :) > > > > > > JD. > > > > > > On 05/10/2007, MsTiFtS <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>>> > > wrote: > > > > > >> You only need to find the first 3 pins, if you have got these > > you'll see > > >> what the 4th is. > > >> And with level tests, you can simply rule out all these > VCC and > > GND pins > > >> and further reduce the number of pins you need to test. > > >> Have a closer look at the PDF presentation of the JTAG finder > > site, it's > > >> all described there. > > >> > > >> JD schrieb: > > >> > > >>> I take a look on that JTAG finder, it's a good tool to find > > out JTAG > > >>> pins when you know where the pins are (but you don't > know pin > > order). > > >>> The problem with level test is other chips may got the > same level > > >>> characteristcs than a JTAG signal. > > >>> And there a permutation of 4 pins in 15 pads is more around > > 30000 possibilities. > > >>> > > >>> JD. > > >>> > > >>> On 05/10/2007, MsTiFtS <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > <mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>> wrote: > > >>> > > >>> > > >>>> Well, IF there are ONLY 15 pads (I could not make out > any on > > the scans, > > >>>> where the heck are they?), you can probably reduce them to > > about 10 with > > >>>> signal level tests, so there are only about 110 or 1000 > > possibilities to > > >>>> go, depending what scheme you use. That's done withing > a few > > seconds > > >>>> using that JTAG finder. Who has a dissected nano to try it > > out? ;) > > >>>> > > >>>> JD schrieb: > > >>>> > > >>>> > > >>>>> Of course there is a way to put binaries on the > devices but > > I don't > > >>>>> think we can find how without the original > documentation, mainly > > >>>>> because: > > >>>>> > > >>>>> 1. There is no proof that JTAG is used here. > > >>>>> Only the ARM got a JTAG interface on our board and the > main > > JTAG > > >>>>> feature is daisy chaining multiple chips on a single bus. > > Maybe the > > >>>>> in2g is initially programmed by an other protocol / bus, > > even by an > > >>>>> homemade simple serial bus. > > >>>>> But okay if I have to bet I choose JTAG. > > >>>>> > > >>>>> 2. The JTAG pins aren't clearly defined, that doesn't mean > > there are > > >>>>> no pins on our board but maybe the pins are one of the > many > > board pads > > >>>>> ( approximatly 15 pads and 4 JTAG pins -> impossible to > > guess even > > >>>>> with signal level tests (maybe I'm wrong but even if it's > > possible > > >>>>> this will take a very very long time)). > > >>>>> > > >>>>> I really think there is no hope about JTAG without proper > > schematics / > > >>>>> boards layout. > > >>>>> > > >>>>> JD. > > >>>>> > > >>>>> On 04/10/2007, MsTiFtS < [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>> wrote: > > >>>>> > > >>>>> > > >>>>> > > >>>>>> I doubt there are JTAG pins anywhere accessible on the > > board. I am > > >>>>>> wondering how they loaded the initial code to these > > devices, but I can't > > >>>>>> see any way to do this except before the chips where > > soldered to the > > >>>>>> boards. There is simply nothing on this board you > cold make > > a quick > > >>>>>> connection to except the dock port, but I doubt that > JTAG > > is in there > > >>>>>> somewhere. That JTAG finder just helps to get the > pinout if > > you have a > > >>>>>> dozen touchpoints on the board. Whe have the exact > opposite > > problem: > > >>>>>> Nothing to hook up to. (Well, at least nothing I can > see on > > the various > > >>>>>> PCB scans, I didn't get my fingers on a dissected > iPod yet.) > > >>>>>> > > >>>>>> mat h schrieb: > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>>>> http://www.c3a.de/wiki/index.php/JTAG_Finder > > <http://www.c3a.de/wiki/index.php/JTAG_Finder> ? > > >>>>>>> > > >>>>>>> On 9/28/07, *mat h* < [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > <mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>>> wrote: > > >>>>>>> > > >>>>>>> just an idea what chip is the ram? Alot of chips > have > > debugging > > >>>>>>> pins on them ( JTAG etc) does the ram chip? > > >>>>>>> > > >>>>>>> > > >>>>>>> On 9/28/07, *Jeremy Prater* < > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > >>>>>>> <mailto: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>>>> wrote: > > >>>>>>> > > >>>>>>> Hmmm, im going to stop my hunt then, I searched > > 19% of the > > >>>>>>> keyspace, but it sounds like im wasting time > here. > > Has anyone > > >>>>>>> had any luck or ideas on how to dump the > 256mbit/ > > 8meg ram? > > >>>>>>> Ive got no ideas on even trying to get the > ram out > > of there. > > >>>>>>> Hehe except with a hammer... ok later im > going to > > keep at it. > > >>>>>>> -- Jeremy > > >>>>>>> > > >>>>>>> -----Original Message----- > > >>>>>>> From: Emmanuel Fleury [mailto: > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > >>>>>>> <mailto: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>>>] > > >>>>>>> Sent: Thursday, September 27, 2007 10:20 PM > > >>>>>>> To: Hardware and developpement mailing list. > > >>>>>>> Subject: Re: [Linux4nano-dev] Update to rc4 > key search > > >>>>>>> (optimized) > > >>>>>>> > > >>>>>>> mat h wrote: > > >>>>>>> > ok, just give me a bell if you need cpu power. > > >>>>>>> > > > >>>>>>> > Anyway what makes you so sure that the key > is RC4? > > >>>>>>> > > >>>>>>> It's not. We have some good clues against it. > > >>>>>>> > > >>>>>>> Comparing several consecutive encrypted > firmwares > > show us that > > >>>>>>> the same > > >>>>>>> key is used each time. > > >>>>>>> > > >>>>>>> In the case of an RC4 (or any stream cipher > > scheme), it would > > >>>>>>> mean that > > >>>>>>> we could have some statistical properties poping > > out when > > >>>>>>> XORing of two > > >>>>>>> encrypted firmwares (namely we should see > > something similar to > > >>>>>>> the > > >>>>>>> statistical property of an ARM binary... As > > Serpilliere did > > >>>>>>> mention it, > > >>>>>>> ARM binaries have very specific statistical > > properties (on the > > >>>>>>> 'command' > > >>>>>>> part)). > > >>>>>>> > > >>>>>>> We tried and nothing came out from this, which > > means that it's > > >>>>>>> very > > >>>>>>> likely a block cipher scheme (with a fixed key). > > >>>>>>> > > >>>>>>> Regards > > >>>>>>> -- > > >>>>>>> Emmanuel Fleury > > >>>>>>> > > >>>>>>> I do not fear computers. I fear the lack of > them. > > >>>>>>> -- Isaac Asimov > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> _______________________________________________ > > >>>>>>> Linux4nano-dev mailing list > > >>>>>>> [email protected] > <mailto:[email protected]> > > <mailto:[email protected] > <mailto:[email protected]>> <mailto:[email protected] > <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>> > > >>>>>>> https://mail.gna.org/listinfo/linux4nano-dev > <https://mail.gna.org/listinfo/linux4nano-dev> > > >>>>>>> http://www.linux4nano.org > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> -- > > >>>>>>> We explore... and you call us criminals. > > >>>>>>> We seek after knowledge... and you call us > criminals. > > >>>>>>> We exist without skin color, without > nationality, without > > >>>>>>> religious bias... and you call us criminals. > > >>>>>>> You build atomic bombs, you wage wars, you murder, > > cheat, and lie > > >>>>>>> to us and try to make us believe it's for our > own good... > > >>>>>>> ....yet we're the criminals. > > >>>>>>> > > >>>>>>> ____________WAUSHARE ROX ______________ > > >>>>>>> Join the dark side we've got cheese > > >>>>>>> Annoying people since 1992 > > >>>>>>> If you hate me, I love you too. It ain't my > fault I'm > > better than you > > >>>>>>> Save Water, Drink Beer > > >>>>>>> God Made Women First, Then He Had A Better Idea. > > >>>>>>> If Barbie is soo popular...how come you have to buy > > her friends? > > >>>>>>> Don't play stupid with me... I'm better at it! > > >>>>>>> You were so cute when you were a baby...What > happened? > > >>>>>>> My folks were always asking me to wear underpants. > > What am I, the > > >>>>>>> pope? > > >>>>>>> I'm calling the police!... Right after I flush > some tings. > > >>>>>>> Join the army, see the world, meet interesting > people, > > and kill them. > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>>> -- > > >>>>>>> We explore... and you call us criminals. > > >>>>>>> We seek after knowledge... and you call us criminals. > > >>>>>>> We exist without skin color, without nationality, > without > > religious > > >>>>>>> bias... and you call us criminals. > > >>>>>>> You build atomic bombs, you wage wars, you murder, > cheat, > > and lie to > > >>>>>>> us and try to make us believe it's for our own good... > > >>>>>>> ....yet we're the criminals. > > >>>>>>> > > >>>>>>> ____________WAUSHARE ROX ______________ > > >>>>>>> Join the dark side we've got cheese > > >>>>>>> Annoying people since 1992 > > >>>>>>> If you hate me, I love you too. It ain't my fault I'm > > better than you > > >>>>>>> Save Water, Drink Beer > > >>>>>>> God Made Women First, Then He Had A Better Idea. > > >>>>>>> If Barbie is soo popular...how come you have to buy her > > friends? > > >>>>>>> Don't play stupid with me... I'm better at it! > > >>>>>>> You were so cute when you were a baby...What happened? > > >>>>>>> My folks were always asking me to wear underpants. > What am > > I, the pope? > > >>>>>>> I'm calling the police!... Right after I flush some > tings. > > >>>>>>> Join the army, see the world, meet interesting > people, and > > kill them. > > >>>>>>> > > > ------------------------------------------------------------------------ > > >>>>>>> > > >>>>>>> _______________________________________________ > > >>>>>>> Linux4nano-dev mailing list > > >>>>>>> [email protected] > <mailto:[email protected]> <mailto: [email protected] > <mailto:[email protected]>> > > >>>>>>> https://mail.gna.org/listinfo/linux4nano-dev > > >>>>>>> http://www.linux4nano.org > > >>>>>>> > > >>>>>>> > > >>>>>>> > > >>>>>> _______________________________________________ > > >>>>>> Linux4nano-dev mailing list > > >>>>>> [email protected] > <mailto:[email protected]> <mailto: [email protected] > <mailto:[email protected]>> > > >>>>>> https://mail.gna.org/listinfo/linux4nano-dev > > >>>>>> http://www.linux4nano.org <http://www.linux4nano.org> > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>>> > > >>>>> _______________________________________________ > > >>>>> Linux4nano-dev mailing list > > >>>>> [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > >>>>> https://mail.gna.org/listinfo/linux4nano-dev > > >>>>> http://www.linux4nano.org > > >>>>> > > >>>>> > > >>>>> > > >>>>> > > >>>> _______________________________________________ > > >>>> Linux4nano-dev mailing list > > >>>> [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > >>>> https://mail.gna.org/listinfo/linux4nano-dev > > <https://mail.gna.org/listinfo/linux4nano-dev> > > >>>> http://www.linux4nano.org > > >>>> > > >>>> > > >>>> > > >>> _______________________________________________ > > >>> Linux4nano-dev mailing list > > >>> [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > >>> https://mail.gna.org/listinfo/linux4nano-dev > <https://mail.gna.org/listinfo/linux4nano-dev> > > >>> http://www.linux4nano.org > > >>> > > >>> > > >>> > > >> _______________________________________________ > > >> Linux4nano-dev mailing list > > >> [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > >> https://mail.gna.org/listinfo/linux4nano-dev > > >> http://www.linux4nano.org > > >> > > >> > > > > > > _______________________________________________ > > > Linux4nano-dev mailing list > > > [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > > https://mail.gna.org/listinfo/linux4nano-dev > > > http://www.linux4nano.org > > > > > > > > > > > > _______________________________________________ > > Linux4nano-dev mailing list > > [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > https://mail.gna.org/listinfo/linux4nano-dev > <https://mail.gna.org/listinfo/linux4nano-dev> > > http://www.linux4nano.org <http://www.linux4nano.org> > > > > > > > > > > -- > > We explore... and you call us criminals. > > We seek after knowledge... and you call us criminals. > > We exist without skin color, without nationality, without religious > > bias... and you call us criminals. > > You build atomic bombs, you wage wars, you murder, cheat, and > lie to > > us and try to make us believe it's for our own good... > > ....yet we're the criminals. > > > > ____________WAUSHARE ROX ______________ > > Join the dark side we've got cheese > > Annoying people since 1992 > > If you hate me, I love you too. It ain't my fault I'm better > than you > > Save Water, Drink Beer > > God Made Women First, Then He Had A Better Idea. > > If Barbie is soo popular...how come you have to buy her friends? > > Don't play stupid with me... I'm better at it! > > You were so cute when you were a baby...What happened? > > My folks were always asking me to wear underpants. What am I, > the pope? > > I'm calling the police!... Right after I flush some tings. > > Join the army, see the world, meet interesting people, and kill > them. > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Linux4nano-dev mailing list > > [email protected] <mailto:[email protected]> > > https://mail.gna.org/listinfo/linux4nano-dev > > http://www.linux4nano.org > > > _______________________________________________ > Linux4nano-dev mailing list > [email protected] <mailto:[email protected]> > https://mail.gna.org/listinfo/linux4nano-dev > http://www.linux4nano.org > > > > > -- > We explore... and you call us criminals. > We seek after knowledge... and you call us criminals. > We exist without skin color, without nationality, without religious > bias... and you call us criminals. > You build atomic bombs, you wage wars, you murder, cheat, and lie to > us and try to make us believe it's for our own good... > ....yet we're the criminals. > > ____________WAUSHARE ROX ______________ > Join the dark side we've got cheese > Annoying people since 1992 > If you hate me, I love you too. It ain't my fault I'm better than you > Save Water, Drink Beer > God Made Women First, Then He Had A Better Idea. > If Barbie is soo popular...how come you have to buy her friends? > Don't play stupid with me... I'm better at it! > You were so cute when you were a baby...What happened? > My folks were always asking me to wear underpants. What am I, the pope? > I'm calling the police!... Right after I flush some tings. > Join the army, see the world, meet interesting people, and kill them. > ------------------------------------------------------------------------ > > _______________________________________________ > Linux4nano-dev mailing list > [email protected] > https://mail.gna.org/listinfo/linux4nano-dev > http://www.linux4nano.org _______________________________________________ Linux4nano-dev mailing list [email protected] https://mail.gna.org/listinfo/linux4nano-dev http://www.linux4nano.org
