**** BEGIN LOGGING AT Mon Jun 04 02:59:56 2007 Jun 04 13:50:02 Hello there Jun 04 14:15:15 Hi goug Jun 04 18:43:50 hi there Jun 04 18:43:58 Sory drath Jun 04 18:44:13 was droning in screen mode while cycling home (15 miles) Jun 04 18:46:05 heh, no problem Jun 04 18:46:20 anything you wanted to ask/say/...? Jun 04 18:54:59 well Jun 04 18:55:07 I just crashed a RV042 today Jun 04 18:55:10 I mean Jun 04 18:55:12 badly crashed Jun 04 18:55:27 most probably erased the booloader from flash Jun 04 18:55:44 So I guess JTAG is my only chace to recover from this Jun 04 18:55:52 * drath googles for RV042 Jun 04 18:56:13 linksys router? Jun 04 18:56:48 do you know a site that has some technical details on this router? Jun 04 18:56:59 well Jun 04 18:57:03 really hard to fing Jun 04 18:57:05 find Jun 04 18:57:06 sorry Jun 04 18:57:15 in the end, the most complet I ever found Jun 04 18:57:43 is seattlewireless Jun 04 18:58:03 when it comes that RV042 & WRT54GL uses very similar hardware Jun 04 18:58:07 let me fetch the link Jun 04 18:58:27 http://www.seattlewireless.net/LinksysWrv54g Jun 04 18:58:46 looks like HRI collected interresting stuff as well Jun 04 18:59:45 http://hri.sourceforge.net/ Jun 04 19:01:32 uhm - is it similar to the wr_t_54g, or to the wr_v_54g? Jun 04 19:01:43 couldn't find a reference to rv042 on seattlewireless Jun 04 19:02:03 those two are quite different - one uses a mips core, the other has an intel xscale core Jun 04 19:03:40 that's th one using ixp425 Jun 04 19:04:58 is there a JTAG port on the board? or do you know on which testpads the jtag signals are? Jun 04 19:09:04 found on post on linksysinfo.org that says J2 might be JTAG Jun 04 19:19:30 well JP2 on my RV042 looks pretty much like the one on wr_v_54g Jun 04 19:20:39 ok, you should be able to access your flash using a Wiggler and the openwine jtag tools Jun 04 19:20:50 s/openwine/openwince/ Jun 04 19:21:02 drath meant: ok, you should be able to access your flash using a Wiggler and the openwince jtag tools Jun 04 19:49:55 well Jun 04 19:50:06 thanks for the tip! Jun 04 19:52:08 any convenient way I could check the pinout? Jun 04 19:52:18 befroehad? Jun 04 19:52:21 beforehand Jun 04 20:05:12 not really Jun 04 20:05:27 but if it's a 2x10 connector chances are it's the JTAG port Jun 04 20:06:00 you could measure the reset lines against GND, they should be 3.3V Jun 04 20:26:21 oki Jun 04 20:26:27 that's quite easy Jun 04 20:26:37 gonnapick hardware tomorrow at retailer Jun 04 20:27:34 I mean connector Jun 04 20:27:46 I just don't know which wiggler to pick Jun 04 20:28:03 on the seattlewireless site, there is a really simple one Jun 04 20:28:21 juste a coupla resistors and a parallel port Jun 04 20:28:47 dya think it would be suitable? Jun 04 20:30:35 you should use a buffered interface Jun 04 20:31:28 so you mean the other drawing Jun 04 20:31:38 with a chip and som circuitry Jun 04 20:31:52 not too sure my local retailer has it on the shelf Jun 04 20:32:10 i'll see Jun 04 20:33:03 finally if I ever come to the point JTAG works, I just don't know how to boot linux on this unit... Jun 04 20:33:16 I may need a bootloader? Jun 04 20:33:41 many clues indeed for such a newbie as me ;-) Jun 04 20:33:44 goug: usually unless you are really interested in building a jtag wiggler yourself, its easier to jsut purchase a off-the-shelf item Jun 04 20:34:35 well, you'll need a bootloader, a linux kernel image, and a root filesystem Jun 04 20:34:36 thanks prpplague, I'll check what my local guy has, hoping he has anything supported with KNX Jun 04 20:34:38 LNX Jun 04 20:34:43 goug: http://www.elinux.org/JTAG Jun 04 20:35:03 <... browsing...> Jun 04 20:36:02 http://www.achiestdragon.org/index.php?title=Jtag_wiggler&oldid=403 Jun 04 20:36:22 Funny thing is that I actuammy live in the middle of the French Sylicon Vallye Jun 04 20:36:41 with the highest conectration in the country of people knowing such things Jun 04 20:36:49 but I don't have any link to them Jun 04 20:37:00 Hopefully you guys can help Jun 04 20:37:07 I really appreciate this Jun 04 20:37:11 manhy thanks Jun 04 20:39:57 it worries me that a lot of the jtag wigglers that are based on 74hc244 buffers that they only work at 5v jtag voltages , ok for some of hte microcontrolers , but a lot of the xilinx fpga's use 2.5v jtag voltages Jun 04 20:42:41 AchiestDragon: yea Jun 04 20:43:37 your auto-adapatative one looks fine from this prospective Jun 04 20:44:22 AchiestDragon: we use the ft2232 now days, but we generally have it fixed for 3.3v since all of our projects are 3.3v based Jun 04 20:44:58 yes it will just need the pinouts for the dio bits correctly matched to what lines on a lpt port the software uses Jun 04 20:45:16 it may need some of the signals inverted in software also Jun 04 20:46:14 its also shown with a 14 pin arm jtag format output , but easaly changed to other formats **** ENDING LOGGING AT Tue Jun 05 02:59:57 2007