| 00:17.39 | flyback | double owned at work this week, first build a nas out of junk in a few hrs to replace one temporary that crashed and burned, and then did some hacking and figured out the raid card has a header for a serial port for monitorig :) |
| 00:20.26 | flyback | was up till 4am at work that night building that energency nas btw 7pm-4am |
| 05:54.41 | *** join/#openjtag dirk2 (n=dirk@p5B040076.dip0.t-ipconnect.de) |
| 06:58.12 | *** join/#openjtag moi1234 (n=moi@ip70-179-18-67.sd.sd.cox.net) |
| 07:29.12 | flyback | is tired of these MOTHERCANUCKING SNAKES in his mothercanucking dream |
| 08:09.18 | *** join/#openjtag L_Deluxe (n=lou@c-68-53-134-58.hsd1.tn.comcast.net) |
| 08:13.14 | flyback | just got a null pointer deference error on the server he brought home from work to test the drives on but the cdrom for the live linux cd hit a read error so that might just be the cause |
| 08:14.59 | flyback | I always like to explain null pointer deference errors as the scene in indiana jones III where has to spell out and walk on the stones that say "jehova" and he thinks it starts with a "j" |
| 09:01.22 | *** join/#openjtag pleemans (n=toi@d54C2AAB7.access.telenet.be) |
| 09:14.28 | flyback | was in shock how well this old pII 300 64 meg ram played video via vnc last n ight and if only he had sound :P |
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| 16:44.59 | flyback | ponders what flash drive to carry with him to the party and some other stuff, bbl |
| 17:33.30 | *** join/#openjtag dinomight (n=dnglaze@209.0.51.23) |
| 17:52.05 | flyback | bbl has to get some medical supplies so he can try to enjoy a company party with as little pain as possible |
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| 21:28.19 | *** join/#openjtag sgh_ (n=sgh@0x4dd5bf76.adsl.cybercity.dk) |
| 21:28.28 | sgh_ | Hi ! |
| 21:29.02 | sgh_ | How do I extract and appropriate tap-definition from my hardware ? |
| 21:48.52 | noz | You'll need to know something about the hardware... How long is the instruction register, what the manufacturer ID is, if any... |
| 21:49.09 | noz | What's the board? |
| 22:35.00 | sgh_ | noz: it is a hitex lpc3250-comstick |
| 22:36.59 | sgh_ | http://www.ehitex.de/p_info.php?products_id=373&xID=8b4e13ddb743ee9bea9237adc1693aca |
| 22:44.29 | noz | Nice board. https://lists.berlios.de/pipermail/openocd-development/2008-November/003666.html (first Google hit on the CPU part) suggests that the IR is 4 bits long |
| 22:46.30 | noz | So something like 'jtag newtap arm926 cpu -irlen 4 -ircapture 0x01 -irmask 0xf -expected-id (something - start with 0xFFFFFFFF and work it out from debug) |
| 22:48.49 | noz | Possibly 0x07926f0f |
| 22:56.23 | sgh_ | noz: ok, it then gives me this: Error: Could not validate JTAG scan chain, IR mismatch, scan returned 0x3f. tap=arm926.cpu pos=0 expected 0x1 got 3 |
| 22:57.12 | sgh_ | noz: I really don't know what to do with it mostly because I don't fully understand how it all works. |
| 22:57.55 | noz | Hmm. One thing a lot of the tools lack is auto-detection. It's a shame, because it should be perfectly possible with the JTAG spec... |
| 22:58.54 | sgh_ | noz: ... basically I know what type of tage I have, so fitting the cfg-file to the actual read of the IR would be possible right ? |
| 22:59.00 | noz | I found an excellent tutorial on JTAG - search for "Boundary-Scan Tutorial" from Asset |
| 23:00.12 | noz | I would have thought so |
| 23:00.24 | sgh_ | noz: thanks ..... |
| 23:01.19 | noz | You could try with an older version, and the older style configuration line of "jtag_device 4 0x1 0xf 0xe", in case I got the translation to new style config wrong |
| 23:06.53 | sgh_ | noz: I allready tried that yesterday. Actually the 0.1.0 release iss better since specifying somthin completely wrong as ft2232_device_desc gives me an error saying "LPC3250-Stick A" "LPC3250-Stick B" which is comforting for me becaus that informatin I guess is read from the device. |
| 23:08.14 | noz | Sadly this channel is a little quiet (unless you're interested in flyback's life ;) |
| 23:09.23 | sgh_ | "flyback's life" ? |
| 23:09.27 | noz | Have you tried with -d3? Do you want to pastebin a little more of the context around the error? |
| 23:09.43 | sgh_ | noz: sure ... 2 sec |
| 23:10.27 | noz | (Sorry - just a little dig - there's been nothing here for days except occasional posts from him telling us all what he's up to!) |
| 23:11.15 | sgh_ | noz: config-file : http://pastebin.ca/1311201 |
| 23:11.58 | noz | k |
| 23:12.16 | sgh_ | noz: -d 3 output: http://pastebin.ca/1311203 |
| 23:15.03 | noz | Can you compile openocd? Try again with 'make CFLAGS="-g -O2 -D_DEBUG_JTAG_IO_"' - gives more info about what's going on at a very low level |
| 23:15.39 | sgh_ | noz: sure |
| 23:15.57 | sgh_ | noz: version 0.1.0 is okay? |
| 23:16.05 | noz | The other thign you could try is slowing everything down with a jtag_speed 20 or similar |
| 23:16.26 | sgh_ | noz: will that give different output? |
| 23:16.46 | noz | It may give the device a better chance, if it's a timing issue |
| 23:17.06 | noz | (not very scientific I know, but hey) |
| 23:17.47 | sgh_ | noz: as low as 1 gives no difference... but it was worth the try |
| 23:18.13 | noz | Hang on a mo - you've got "JTAG communication failure, check connection, JTAG interface, targetpower etc." in the log. |
| 23:18.55 | noz | Nothing's going to work until you can get beyond that |
| 23:19.12 | noz | (speed is inverse - the higher the number, the slower it goes) |
| 23:19.51 | noz | Presumably it's all powered from the USB? |
| 23:25.24 | sgh_ | noz: yes |
| 23:26.34 | noz | Then I'm stuck. Sorry. The basic comms to the JTAG adapter part aren't working. |
| 23:26.43 | noz | ... let alone the CPU |
| 23:27.00 | sgh_ | noz: -d 3 with jtag_io_debug_flag: http://pastebin.ca/1311218 lesser informatin that before. |
| 23:27.08 | sgh_ | noz: .... hmmm ok. |
| 23:27.37 | sgh_ | noz: but how am I able to read out "LPC3250-stick" ? |
| 23:28.03 | noz | See. Line 52 - it's reading in all 1's |
| 23:28.49 | noz | Sorry - I don't have a ft2232-based interface, so I don't really know the things you might tweak. |
| 23:29.31 | sgh_ | noz: hold on the jtag_speed in inversed ... that is 1 is faster that 60 ? |
| 23:29.46 | noz | Yes. It's a divisor |
| 23:30.02 | noz | Try 20 to start with |
| 23:30.18 | sgh_ | hmm ... then 1 is problably a bad value ;D I had is set to 60. |