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| 03:50.28 | dyoung-web | test |
| 03:51.16 | dyoung-web | This channel is now logged http://www.loglibrary.com/show_page/latest/187 . |
| 03:51.18 | dyoung-web | FYI. |
| 03:51.42 | dyoung-web | paid for by the generous donations of nslu2-linux users. |
| 03:57.58 | dyoung-web | I have my boatload of MCP120-450's too |
| 03:58.05 | dyoung-web | whoops. |
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| 14:13.07 | prpplague | morning folks |
| 14:13.12 | prpplague | anyone alive today? |
| 14:24.37 | prpplague | hehe dead dead dead |
| 14:42.24 | prpplague | hehe |
| 14:42.49 | prpplague | either of you done any code from linux to monitor the core logic registers from jtag? |
| 14:44.11 | Jacmet | nope |
| 14:47.23 | prpplague | i see |
| 15:15.31 | ep1220 | prpplague: I can access the XScale JTAG registers from Linux using the FTDI chip |
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| 15:33.02 | prpplague | ep1220: cool |
| 15:33.12 | prpplague | ep1220: using a custom app of course |
| 15:33.24 | prpplague | ep1220: are you able to set break points? |
| 15:33.49 | ep1220 | prpplague: I be back in 10 minutes |
| 15:33.50 | prpplague | ep1220: i'd like to set a break point, and then dump registers when it reaches that point |
| 15:33.53 | prpplague | ep1220: ok |
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| 15:49.16 | ep1220 | prpplague: So far I only loaded code into the cache. |
| 15:49.36 | ep1220 | A breakpoint can not be set thru a JTAG register |
| 15:49.55 | ep1220 | You need a stub on the CPU which sets the breakpoint |
| 15:50.30 | ep1220 | handles the exception and then dumps registers to the JTAG trasnfer registers |
| 15:57.57 | prpplague | ep1220: hmm, that doesn't sound correct, as i am able to do that now |
| 15:58.29 | ep1220 | Set a breakpoint using JTAG ? |
| 15:58.34 | prpplague | ep1220: yea |
| 15:58.46 | prpplague | ep1220: i'm using armtool |
| 15:58.55 | ep1220 | What JTAG IF ? |
| 15:59.46 | ep1220 | Your target is an XScale CPU ? |
| 16:00.19 | prpplague | ep1220: no samsung s3c44B0X with a wiggler style |
| 16:00.33 | ep1220 | This is ARM7 or ARM 9 ? |
| 16:04.40 | ep1220 | I found it is ARM7TDMI |
| 16:04.42 | ep1220 | <PROTECTED> |
| 16:05.59 | ep1220 | You know JMunakra's JTagPack ? Is on Source Forge. It supports ARM7TDMI |
| 16:25.01 | prpplague | sorry boss on the phone |
| 16:25.32 | prpplague | jtagpack? hmm, not heard of that one |
| 16:25.50 | prpplague | ep1220: ahh, i've not done much with xscale |
| 16:29.27 | prpplague | ep1220: interesting, i'll have a look |
| 16:34.53 | prpplague | ep1220: the xscale jtag interface isn't standard arm? |
| 16:52.27 | ep1220 | prpplague: For debugging Intel has its own way |
| 16:52.53 | ep1220 | e.g Xscale has a mini-cache were You can load the debugging stub |
| 16:53.14 | prpplague | ahh |
| 16:53.23 | ep1220 | ARM7 only allows You to insert an instruction into the execution register |
| 16:53.52 | ep1220 | MIPS has still another way, as do have most DSPs |
| 16:54.22 | ep1220 | There is no standard JTAG debugging IF |
| 16:54.55 | ep1220 | ARM9 also has some differences |
| 16:55.02 | ep1220 | Do You have the ARM debugging docs ? |
| 16:58.48 | prpplague | no, i do not |
| 16:58.56 | prpplague | url? |
| 16:59.32 | ep1220 | I found info on JTAG debuggin in the following ARM DOCs: |
| 16:59.42 | ep1220 | DDI0210C_7tdmi_r4p1_trm.pdf |
| 16:59.49 | ep1220 | DDI0210B_7TDMI_R4.pdf |
| 16:59.56 | ep1220 | DDI0029G_7TDMI_R3_trm.pdf |
| 17:00.05 | ep1220 | I downloaded them from the ARM website |
| 17:00.25 | ep1220 | Sorry, have no "direct click" URL. |
| 17:00.29 | prpplague | ahh lovely, i'll have a look |
| 17:00.41 | prpplague | hehe |
| 17:00.46 | prpplague | ep1220: can get them from arm |
| 17:00.52 | prpplague | ep1220: just didn't know they existed |
| 17:01.08 | ep1220 | bascially all 3 are jsut different versions of the same doc. |
| 17:03.44 | ep1220 | If You have more questions I'll be around in 2 hours. |
| 17:03.45 | ep1220 | (not that I would call me _the_ ARM JTAG debugging expert) |
| 17:05.25 | ep1220 | but would be interested what You are missing from armtools |
| 17:13.07 | prpplague | ep1220: ok thanks |
| 19:06.33 | ep1220 | prpplague: I am back |
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