On Thu, September 3, 2009 10:56 am, Russell Senior wrote: >>>>>> "m0gely" == m0gely <m0g...@gmail.com> writes: > > m0gely> Well as I mentioned, the Linksys TFTP app indicates nothing no > m0gely> router is there to communicate with. I successfully used this > m0gely> app on the router when getting rid of the VXWorks OS. So I > m0gely> know how that part works unless there are some additional > m0gely> sneaky techniques. > > m0gely> As for the serial idea, are you referring to soldering on a > m0gely> serial port? That looks no less invasive than the JTAG > m0gely> approach. > > If there is a header on the board, you don't need to solder. I don't > remember if the WRT54GL has populated the header or not. That might > go for the JTAG as well though. From your description, it sounds like > you do need JTAG. If the CFE (the bootloader that Broadcom uses on > the board) isn't coming up correctly, and isn't able to accept TFTP, > then serial probably isn't going to help. Serial could let you watch > it fail though, which could be informative. > > As it happens, I just purchased a USB JTAG adapter (an Olimex > ARM-USB-OCD from Sparkfun), but the software I am using with it > (OpenOCD) does not support Broadcom MIPS boards (I got it for an > ARM-based board, which is working ... yay!). > > I also have a parallel port "Wiggler" style adapter that someone > loaned me, but I don't have any documentation for it and it isn't > labelled with any identifying information that would let me find > some. I would loan it to you, but it isn't really mine to loan. > > There are lots of instructions online for making your own adapter. If > you've got a machine with a parallel port, some old cables and a > soldering iron, you just need a few resistors and some elbow grease.
To some extent I can understand the fixation on not spending any money (I have it too), but at this point I think if you went back in time, dressed in your rattiest clothing, and stood outside of Powell's Technical Books or Free Geek and begged passers-by for spare change for a JTAG adapter you'd find that you'd get enough to buy one from Olimex for the time you've spent digging for information here. -- Tim Wescott Control systems and communications consulting http://www.wescottdesign.com Land line: 503.631.7815 Cell: 503.349.8432 _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
