**** BEGIN LOGGING AT Mon Aug 03 02:59:57 2009 Aug 03 22:56:19 Hello - Where can I lookup ARM product ID codes to see if my JTAG interface is properly reading my chip? Aug 03 22:56:46 JTAG device found: 0x0000b2fb (Manufacturer: 0x17d, Part: 0x000b, Version: 0x0) Aug 03 22:56:57 Target is NetSilicon ns9215 Aug 03 22:58:06 too many zeroes i think Aug 03 22:58:19 Yeah. Followed by Aug 03 22:58:24 Error validating JTAG scan chain, IR mismatch, scan returned 0x01 Aug 03 23:00:40 Unfortunately, that indicates problems with the config that I'm not sure how to deal with. Aug 03 23:01:35 roxfan: Know anything about getting scan chains figured out? Aug 03 23:01:55 barely Aug 03 23:02:54 Well, Openocd is only finding one device on the scan chain, but the standard ARM9 jtag_device line gives me a scan chain validation error. Aug 03 23:03:49 you have any other tools? Aug 03 23:04:03 You mean Hardware or Software? Aug 03 23:04:26 sw Aug 03 23:04:39 Well, I intend to eventually use GDB... Aug 03 23:04:50 But I figured I needed to get OpenOCD working first. Aug 03 23:05:19 I'm on Debian Lenny Aug 03 23:05:28 well looks like you need something low-level to figure out the chain Aug 03 23:05:34 maybe try urjtag Aug 03 23:10:05 urjtag sees an IR length of 23. Aug 03 23:10:09 Is that reasonable? Aug 03 23:13:36 hmm kinda long... Aug 03 23:13:40 what's the id? Aug 03 23:13:53 0x000000000000B2FB Aug 03 23:14:38 hmm so it sees the same Aug 03 23:15:13 i'm afraid i'm out of ideas :/ Aug 03 23:18:57 Well, Thanks. Aug 03 23:19:11 You gave me more avenues to pursue. Aug 03 23:24:57 Now, I feel dumb. Aug 03 23:25:05 I just found a switch on the board labeled "Enable OCD" Aug 03 23:25:09 Turned it on. Aug 03 23:25:19 Now, I get "Warning: TDO seems to be stuck at 1" Aug 03 23:26:01 Any ideas, roxfan? Aug 03 23:26:33 could be wrong wiring Aug 03 23:27:04 Can't imagine. The board has a 20-pin jtag header, and this dev board has been in use for years. Aug 03 23:27:42 I just measured VRef, got 3.2v, which is quite within the 2.0-5.0v range supported by my adapter. Aug 03 23:27:45 what adapter are you using? Aug 03 23:27:57 Olimex ARM-USB-OCD Aug 03 23:28:17 hmm that should be supported pretty well... Aug 03 23:28:33 maybe try older or newer version of ocd.... Aug 03 23:29:10 It's urjtag that's reporting TDO being stuck. Aug 03 23:29:13 Haven't tried OCD yet. Aug 03 23:30:36 OpenOCD finds a "0x27926031 (Manufacturer: 0x018, Part: 0x7926, Version: 0x2)" Aug 03 23:30:47 then repeats that line, then seems to freeze Aug 03 23:32:13 Actually, it seems to be working. Aug 03 23:32:28 this is looking better... i think 7926 is an arm926 Aug 03 23:33:04 And, I think the target is an arm926ejs, so... Aug 03 23:37:05 http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/3843.html **** ENDING LOGGING AT Tue Aug 04 02:59:57 2009