| 00:06.37 | key2 | there is no channel on verilog ? |
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| 03:48.25 | cbpage_ | jacques - ka6sox asked me to ask what emulator you're using ;) |
| 03:49.15 | lennert | is ka6sox here? |
| 03:50.59 | cbpage_ | i'm in a room irl with him |
| 03:51.12 | cbpage_ | he's talking about slugs and debian and stuff - was on the phone so i misssed a bit |
| 03:51.55 | lennert | aaaaah |
| 03:52.12 | lennert | he asked me to be online because he'd have his talk |
| 03:52.21 | cbpage_ | cool |
| 03:52.31 | lennert | so i set my alarm clock for 4am, and ka6sox isn't here! |
| 03:52.35 | lennert | but he's still talking, that explains |
| 03:52.39 | cbpage_ | oops |
| 03:52.45 | cbpage_ | yeha, he's talking right now |
| 03:52.53 | lennert | he said the talk would be between 4am and 4:20am, and then there'd be time for questions from the audience |
| 03:52.58 | cbpage_ | ok :) |
| 03:52.59 | lennert | (4am and 4:20am my time) |
| 03:53.04 | lennert | but since it's 5am now.. |
| 03:53.07 | lennert | :) |
| 03:53.09 | cbpage_ | the talk's going long ;) |
| 03:53.21 | lennert | ok, good then |
| 03:54.26 | cbpage_ | cool |
| 03:57.12 | cbpage_ | <susan> what's the emulator for arm that jacques has been running? |
| 03:57.20 | cbpage_ | (i think that's on my behalf, heh) |
| 03:58.43 | lennert | hehe |
| 03:58.46 | cbpage_ | what kinds of build machines are you running? and tking wants to hear your take on the nfs story - and steph is asking about nbd |
| 03:58.59 | cbpage_ | steph's asking if you've had nbd crashes |
| 03:59.52 | cbpage_ | which version of nbd are you using? extended or in-kernel? |
| 04:01.41 | lennert | hang on |
| 04:01.55 | lennert | i'm using a radisys enp2611 card at home |
| 04:02.03 | lennert | that's a PCI board with a 600mhz ixp2400 and 256M of ram |
| 04:02.13 | cbpage_ | niiice :) |
| 04:02.25 | lennert | at the university, we have an intel ixdp2850, which is a dual 700mhz box, with 768M of triple-interleaved rambus ram per CPU |
| 04:02.34 | lennert | (oh, and it has 10 gigabit interfaces too :) |
| 04:02.44 | lennert | and two more enp2611 cards at the university |
| 04:02.46 | cbpage_ | wow |
| 04:02.57 | lennert | 'my take on the nfs story', how do you mean? |
| 04:03.02 | lennert | (i haven't been following the talk) |
| 04:03.03 | cbpage_ | <tking> can you say fast? |
| 04:03.17 | lennert | i'm using nbd that is in the standard kernel |
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| 04:03.20 | cbpage_ | specifically swap-related |
| 04:03.23 | lennert | i'm only using nbd for swap at this point |
| 04:03.36 | lennert | 256M is enough for most apps but some packages still run out of steam |
| 04:03.43 | lennert | so i have 4G of swap activated over an nbd device |
| 04:03.44 | dot | like gcc |
| 04:03.54 | lennert | it usually doesn't need it, but sometimes it does |
| 04:04.05 | dot | is it the extended nbd? |
| 04:04.08 | cbpage_ | man, what do those cards and that box cost? |
| 04:04.11 | lennert | i've heard a lot about nbd deadlocks, but i haven't encountered them so far, perhaps because i'm not pushing hard enough |
| 04:04.17 | lennert | dot: nope, the regular in-kernel one |
| 04:04.27 | lennert | the radisys card is about $4k, the intel box was $30k or so? |
| 04:04.30 | cbpage_ | wow |
| 04:04.31 | lennert | but it's devel hardware |
| 04:04.42 | lennert | 'retail' dual ixp2800 systems go for around $10 |
| 04:04.44 | lennert | $10k |
| 04:04.52 | lennert | still fairly specialised hardware |
| 04:04.55 | cbpage_ | yeah |
| 04:05.02 | cbpage_ | that rambus sounds expensive! |
| 04:05.27 | lennert | i mean, you're supposed to be able to do 10 gigabit/second ipsec processing and deep packet classification with |
| 04:05.37 | cbpage_ | sweet |
| 04:05.37 | lennert | (which is really what the boxes are made for) |
| 04:05.48 | lennert | at my uni they do networking research with those boxes |
| 04:06.00 | lennert | i just make sure there's userland stuff and that the kernel keeps running |
| 04:06.03 | dot | how much swap on the UNi boxes have you used. |
| 04:06.13 | lennert | the uni boxes don't need swap |
| 04:06.23 | cbpage_ | we're all jaw-dropped about 10Gb ipsec |
| 04:06.24 | lennert | (the ixdp has 768M per cpu, so 1.5G total) |
| 04:06.32 | lennert | hehe |
| 04:06.54 | lennert | the built-in ixp2800 crypto unit is nice |
| 04:07.00 | cbpage_ | :) |
| 04:07.06 | lennert | btw, no, i haven't had nbd crashes |
| 04:07.10 | cbpage_ | cool |
| 04:07.12 | lennert | but i haven't really been pushing it |
| 04:07.29 | lennert | any other questions? |
| 04:07.42 | cbpage_ | not at the moment |
| 04:07.48 | cbpage_ | but hang on :) |
| 04:07.52 | cbpage_ | tom's talking about the role of the ixp's |
| 04:07.56 | lennert | okay |
| 04:09.21 | dot | how much swap on the small boxes? |
| 04:09.46 | lennert | i've configured all enp2611s with 4G swap-over-nbd |
| 04:09.53 | lennert | just to be on the safe side |
| 04:12.25 | dot | how much have you seen used? |
| 04:12.46 | lennert | during gcc build, ~300M-ish |
| 04:12.55 | lennert | but that has one big linking step |
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| 04:13.09 | dyoung-web | w00t |
| 04:13.09 | dot | cool |
| 04:13.13 | dot | w00t?: |
| 04:13.23 | lennert | dyoung-web: ka6sox is doing his talk |
| 04:13.39 | dyoung-web | yeah, tahts what I'm w00ting about. :-) |
| 04:13.48 | lennert | oh :) |
| 04:14.04 | lennert | dyoung-web: you're not there, are you? |
| 04:14.18 | dyoung-web | ixp's for everyday living! |
| 04:14.29 | dyoung-web | no' I'm like a few thousand miles away. |
| 04:14.51 | lennert | dyoung-web: but you're following the talk somehow? |
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| 04:15.38 | cbpage_ | time to pack up |
| 04:15.49 | lennert | 5:15am |
| 04:16.07 | dot | thanks for coming...we had a good turnout |
| 04:16.17 | lennert | you're welcome! |
| 04:16.23 | dot | and the questions I asked earlier were quite helpful |
| 04:16.29 | lennert | good to hear |
| 04:16.36 | lennert | spread the Debian love :) |
| 04:17.06 | dot | indeed :) |
| 04:17.32 | lennert | and i managed to find a key schedule bug in my des core |
| 04:17.39 | dot | oops |
| 04:17.53 | lennert | (i knew it was hiding in there somewhere, just didn't know where) |
| 04:18.05 | lennert | so this period of being awake at 4am was productive for me too |
| 04:18.07 | lennert | :) |
| 04:18.12 | lennert | great to hear it went well |
| 04:18.20 | lennert | any more questions before i go horizontal? |
| 04:18.29 | dyoung-web | lennert, I've been following the talk through telepahty. |
| 04:18.35 | lennert | dyoung-web: ah! |
| 04:18.39 | dot | I think that you answered all of them. |
| 04:18.41 | dyoung-web | That and reading interjections by cbpage earlier. |
| 04:18.58 | lennert | dot: cool |
| 04:19.12 | dyoung-web | I wish I could download lennerts brain. |
| 04:19.30 | dyoung-web | DES. |
| 04:19.36 | dyoung-web | oooh.... |
| 04:19.36 | dot | w00t |
| 04:20.01 | dyoung-web | Wow, Looks like I need to setup svn someday too eh |
| 04:20.18 | dyoung-web | dyoung's local repo |
| 04:20.26 | dot | me too |
| 04:20.28 | dot | :) |
| 04:20.28 | lennert | i keep most of my projects in svn repos |
| 04:20.42 | lennert | change tracking, even if it's just for yourself, is so darn useful |
| 04:21.07 | dyoung-web | Yeah, thats what i want. |
| 04:21.10 | dyoung-web | and need. |
| 04:21.25 | dyoung-web | I have a personal cvs right now; but its being a pita |
| 04:22.39 | dot | dyoung-web: will you be around tonight? |
| 04:22.42 | lennert | http://svn.wantstofly.org/uengine/ is my ixp2000 microengine stuff |
| 04:23.00 | lennert | and i have an svn tree somewhere for ivykis, but that's not in a public place (yet) |
| 04:23.12 | dyoung-web | can I anonymous svn co from you |
| 04:23.13 | dyoung-web | ? |
| 04:23.16 | dot | I have to pick up marina |
| 04:23.22 | dot | cya in a bit ;) |
| 04:23.26 | lennert | dot: ciao :) |
| 04:23.28 | dyoung-web | dot: I'll be around later. |
| 04:23.32 | dyoung-web | but like LATER later. |
| 04:23.35 | lennert | dyoung-web: should be, but maybe apache doesn't have enough permissions |
| 04:23.49 | lennert | dyoung-web: so by all means, try, and if it doesn't work, complain :) |
| 04:23.54 | dyoung-web | okie |
| 04:24.25 | lennert | dyoung-web: btw, i have access to a http://www.xilinx.com/products/boards/ml310/current/ now |
| 04:24.44 | dyoung-web | Wow |
| 04:24.46 | dyoung-web | Thats a big board |
| 04:25.02 | lennert | yeah |
| 04:25.04 | lennert | atx form factor |
| 04:25.14 | lennert | i'll be trying to get linux working on it |
| 04:25.21 | dyoung-web | It looks expensive. |
| 04:25.29 | dyoung-web | Linux using the PPC ? |
| 04:25.30 | lennert | if xilinx's "IP" is not free enough i might end up writing a pci core and a dram controller and stuff |
| 04:25.34 | lennert | yeah |
| 04:25.43 | dyoung-web | theres a mailing list for that someplace. |
| 04:25.50 | dyoung-web | I dotn know if offhand... |
| 04:25.56 | dot | thanks lennert and dyoung-web |
| 04:25.58 | lennert | linux on ppc, or linux on ppc on virtex? |
| 04:26.00 | lennert | dot: okay! |
| 04:26.04 | dyoung-web | I only know the microblaze one... |
| 04:26.10 | lennert | dot: go fetch your wife ;) |
| 04:26.13 | dyoung-web | linux on ppc on viertex. |
| 04:26.20 | lennert | dyoung-web: microblaze would in fact be good to reimplement Freely |
| 04:26.43 | dyoung-web | you know about opencores right? |
| 04:26.45 | lennert | yeah |
| 04:26.50 | dyoung-web | ok. |
| 04:26.54 | dyoung-web | Just making sure. |
| 04:27.08 | lennert | the vhdl counterpart of the crapheap that is sourceforge |
| 04:27.18 | lennert | there's some really good stuff there.. |
| 04:27.23 | lennert | ..and some excruciatingly bad stuff. |
| 04:27.25 | dyoung-web | Yeah, its pretty educational. |
| 04:27.33 | lennert | (just like sourceforge) |
| 04:27.47 | lennert | yeah, it always helps to read a lot of code. |
| 04:27.54 | lennert | that's basically how i learned vhdl |
| 04:28.06 | dyoung-web | Hmm, I didnt get around to my assignment yet. |
| 04:28.09 | lennert | i'm still not sure about 80% of the constructs, and what does exactly what. |
| 04:28.21 | lennert | hehe |
| 04:28.28 | dyoung-web | maybe thats why I'm not a VHDL haX0R |
| 04:28.50 | lennert | it's the 'holy grail' attitude |
| 04:28.58 | lennert | you build a castle, which sinks into the swamp |
| 04:29.04 | lennert | then you build another one, and that sinks into the swamp also |
| 04:29.07 | lennert | then a third one, etc. |
| 04:29.21 | dyoung-web | what happens when the swamp gets full. |
| 04:29.22 | lennert | and eventually you'll end up with a good one |
| 04:29.28 | dyoung-web | heh |
| 04:29.30 | dyoung-web | Yeah. |
| 04:29.36 | lennert | but the thought of stuff sinking into the swamp doesn't stop you from trying. |
| 04:29.50 | lennert | i read vhdl i wrote a month ago and i think "jeeeeeeeeezzz..." |
| 04:30.45 | lennert | anyway |
| 04:30.52 | lennert | dyoung-web: feel free to look around in the svn repo |
| 04:31.00 | dyoung-web | I will. :-) |
| 04:31.04 | lennert | dyoung-web: and feel free to rip off stuff :) |
| 04:31.10 | dyoung-web | I will :-) |
| 04:31.16 | lennert | dyoung-web: (extra points for plagiarism :) |
| 04:31.20 | dyoung-web | har har |
| 04:31.27 | dyoung-web | "Hey, that stanza looks famliar...." |
| 04:31.43 | lennert | everything in vhdl looks familiar, there are only 5 or so basic constructs that you use |
| 04:32.37 | lennert | (either that or i'm really crap :) |
| 04:33.09 | lennert | what i just mean is, even if you just copy code somewhere else, it still gives you more exposure, and exposure is basically the only thing that matters in advancing yourself |
| 04:33.19 | dyoung-web | Yep., |
| 04:33.21 | lennert | doesn't matter much how you get exposed to it, really |
| 04:33.22 | dyoung-web | I agree. |
| 04:33.53 | lennert | okay, so, i'm off |
| 04:34.01 | lennert | nite all |
| 04:34.02 | dyoung-web | ok have a great.. morning ! |
| 04:34.08 | lennert | thanks :) |
| 05:36.52 | key2 | anyone has some knowledge on verilog ? |
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| 06:32.33 | ka6sox-away | morning |
| 06:39.10 | ep1220 | ka6sox-away: hi |
| 06:39.37 | ep1220 | ka6sox-away: Ibb in 20 minutes |
| 06:39.39 | ka6sox-away | hi there... |
| 06:39.42 | ka6sox-away | cya then. |
| 06:52.16 | cbpage_ | cool re the pong |
| 06:56.37 | ka6sox-away | lennert is cranking it out! |
| 06:57.03 | ka6sox-away | I'm impatiently awaiting the s3e board. |
| 07:02.45 | ep1220 | ka6sox-away: back |
| 07:07.35 | ka6sox-away | ep1220, wb |
| 07:07.47 | ka6sox-away | sorry I was off reading vhdl. |
| 07:07.54 | ep1220 | np |
| 07:08.13 | ep1220 | just reading yesterdays archive of this channel |
| 07:08.29 | ka6sox-away | nice to have the logs. |
| 07:08.35 | ep1220 | agree |
| 07:09.17 | ka6sox-away | do you play with FPGA/CPLD's? |
| 07:09.37 | ep1220 | not that much |
| 07:09.50 | ep1220 | looked into the spartans for JTAG some time ago |
| 07:10.37 | ka6sox-away | I'm playing with my S3 board and looking into using that for handling speedup. |
| 07:10.51 | ep1220 | i too have the S3 board |
| 07:11.05 | ka6sox-away | the Digilent one? |
| 07:11.09 | ep1220 | yes |
| 07:11.23 | ka6sox-away | good then 5 of us on channel have it. |
| 07:11.35 | ka6sox-away | I still think that is the best "engine" that we could use. |
| 07:11.51 | ep1220 | i saw you guys have caught FPGA fever :-) |
| 07:11.59 | ka6sox-away | yes. |
| 07:12.02 | cbpage_ | :) |
| 07:12.25 | ka6sox-away | cbpage_, is about 10kms from me. |
| 07:13.09 | ep1220 | Ah, in the US this is neighbours, right :-) |
| 07:13.35 | ka6sox-away | yes...we met tonight. |
| 07:14.16 | ep1220 | great |
| 07:14.26 | ka6sox-away | I need to setup the subversion server tommorrow so that we can start sharing code. |
| 07:14.49 | ep1220 | k |
| 07:15.18 | ep1220 | i'll package up what i have and mail to You |
| 07:15.26 | ka6sox-away | thanks |
| 07:16.02 | ep1220 | IIRC vmaster said the latest Linux FTD2x driver now works OK |
| 07:17.10 | ka6sox-away | that should help |
| 07:17.28 | ep1220 | i use that driver on Win as well, so we could give it a try on linux too |
| 07:17.29 | ka6sox-away | the S3E board might be nice for BDM type applications. |
| 07:18.07 | ep1220 | with BDM You refer to Motorola debug IF ? |
| 07:18.14 | ka6sox-away | yes. |
| 07:18.33 | ka6sox-away | we use an abatron but that is very expensive. |
| 07:19.08 | ep1220 | i know these, but they are also fast |
| 07:19.14 | ka6sox-away | very fast |
| 07:19.28 | ep1220 | Do you know the Windriver USB probe ? |
| 07:19.36 | ka6sox-away | yes |
| 07:20.01 | ep1220 | also fast, but still more expensve than the abatron |
| 07:20.05 | ka6sox-away | I would love to make a system for a lot less than the Abatron which would simulate. |
| 07:20.19 | ka6sox-away | (or have a lot of the same functions. |
| 07:20.20 | ep1220 | Yu mean simulate an Abatron ? |
| 07:20.23 | ka6sox-away | yes |
| 07:20.37 | ka6sox-away | we use it for developing on PPC. |
| 07:20.43 | ep1220 | IIRC Abtron is on ethernet (?) |
| 07:20.48 | ka6sox-away | yes |
| 07:21.41 | ep1220 | they also load target-specifc modules onto the probe -i guess |
| 07:21.52 | ka6sox-away | yes...expensive too. |
| 07:22.04 | ka6sox-away | very nice box. |
| 07:22.12 | ep1220 | basically getting this performance at a lower price is my goal too |
| 07:22.36 | ep1220 | i am confident that an S3 can do it. |
| 07:22.41 | ka6sox-away | I agree. |
| 07:22.56 | ka6sox-away | okay looks like we have a common goal. |
| 07:23.10 | ka6sox-away | this is why I started this project. |
| 07:23.20 | ep1220 | however my calculations showed that is hardly possible under 200USD |
| 07:23.37 | ka6sox-away | abatron is more like $2000 |
| 07:23.51 | ka6sox-away | so anything under $300 would be much joy for me. |
| 07:23.53 | ep1220 | and if you have to pay for the needed SW you come a lot closer to these $2000 |
| 07:24.08 | ep1220 | i.e pay people to code |
| 07:24.14 | ka6sox-away | I figure to use some form of gdb |
| 07:24.25 | ep1220 | gdb is not all |
| 07:24.30 | ka6sox-away | true. |
| 07:24.40 | ep1220 | Yu need debugginfg stubs to run on the probe and the target CPU |
| 07:24.47 | ep1220 | and You need to test these. |
| 07:24.56 | ka6sox-away | long term goal :) |
| 07:25.15 | ep1220 | to me it is not much worth to safe 1700$ and then waste days/weeks on debugging my debugger :-) |
| 07:25.38 | ka6sox-away | true...but at least some functionality would be good. |
| 07:25.46 | ka6sox-away | not everything may work 100% |
| 07:26.00 | ka6sox-away | but programming at better speed would be good. |
| 07:26.07 | ka6sox-away | and also some debugging. |
| 07:27.14 | ka6sox-away | tommorrow I will have time (some) to play with the board. today I was busy on work stuffs :( |
| 07:27.26 | ep1220 | this is why i did the FTDI. |
| 07:28.03 | ep1220 | i hope it is fast enough to attract users and coders |
| 07:28.09 | ka6sox-away | I think it will. |
| 07:28.30 | ka6sox-away | the 2232 is a good chip to use. |
| 07:29.12 | ep1220 | they just should have addes a uP-core ;-) |
| 07:29.16 | ep1220 | added |
| 07:29.22 | ka6sox-away | ya |
| 07:29.38 | ka6sox-away | the uP interface of the 2232 is interesting to me. |
| 07:29.57 | ka6sox-away | with a CPLD or FPGA it would make a nice interface. |
| 07:30.41 | ep1220 | yes. |
| 07:31.16 | ep1220 | i was also looking into chips with onboard Ethernet but all were too slow |
| 07:31.43 | ka6sox-away | that is why I think that the FPGA is the solution. |
| 07:32.05 | ka6sox-away | the S3e board might give us what we need to finish this (at a reasonable price) |
| 07:32.23 | ka6sox-away | but we can start developing with the S3 board. |
| 07:33.04 | ep1220 | agree. |
| 07:33.52 | ep1220 | for the 5V IF: I thought about using a LVC125 |
| 07:34.15 | ka6sox-away | I've used them too...(on a CPLD project i'm doing now) |
| 07:34.33 | ep1220 | there are 4 gates and I have 4 inputs .. |
| 07:34.46 | ka6sox-away | that should work nicely and cheap too. |
| 07:35.09 | ep1220 | 2 of my inputs actually are in/out. |
| 07:35.40 | ep1220 | i can add a jumper to disable 2 of th 125 gates, so we would not loose output functionality |
| 07:35.53 | ka6sox-away | yes. |
| 07:36.26 | ep1220 | and there would be no speed issues as with an open-drain |
| 07:36.53 | ka6sox-away | '125s should be plenty fast. |
| 07:37.08 | ep1220 | yep |
| 07:37.40 | ep1220 | soic14 is not hard to solder, too |
| 07:38.01 | ka6sox-away | okay what do you think about putting the adapter boards attached to the JTAG-F? |
| 07:38.10 | ka6sox-away | and then using cables? |
| 07:38.31 | ep1220 | the 5V yes. |
| 07:38.37 | ka6sox-away | k |
| 07:38.57 | ep1220 | for the others i favour having the 20pin cable and the adaptor close to the target. |
| 07:39.06 | ka6sox-away | k |
| 07:39.12 | ep1220 | however the layout is so You can use them other way. |
| 07:39.21 | ka6sox-away | nice. |
| 07:39.41 | ep1220 | either install a right-angle receptacle (to plug directly into the Jtag-F) |
| 07:40.03 | ep1220 | or a straight or rA header for an IDC connector. |
| 07:40.33 | ka6sox-away | either one would work well. |
| 07:40.49 | ep1220 | at 6MHz yes, |
| 07:41.10 | ka6sox-away | signal is not going to jump off the wire. |
| 07:41.21 | ka6sox-away | too short. |
| 07:41.34 | ep1220 | in the 40-100MHz range I see people moving to impedance-controlled connectors |
| 07:41.45 | ep1220 | so i guess some found problems there |
| 07:41.51 | ka6sox-away | yes. |
| 07:42.09 | ka6sox-away | I have seen plenty of problems with unterminated connectors. |
| 07:44.14 | ka6sox-away | time for me to sleep. |
| 07:44.26 | ka6sox-away | I'll be up in about 7hrs. |
| 07:44.27 | ep1220 | and for me to do some work ;-) |
| 07:44.30 | ep1220 | good night |
| 07:44.38 | ka6sox-away | cya later... |
| 07:44.41 | ka6sox-away | thanks |
| 07:44.51 | ep1220 | i thank You |
| 07:45.04 | ka6sox-away | anytime. |
| 07:45.15 | ka6sox-away | ~weather klft |
| 07:45.50 | *** join/#openjtag jacques (n=username@nslu2-linux/jacques) |
| 07:45.51 | ka6sox-away | ~weather klft |
| 07:46.10 | ka6sox-away | ~weather ksba |
| 07:46.10 | jacques | cool |
| 07:46.28 | jacques | :-( |
| 07:46.30 | ka6sox-away | ~weather ksba |
| 07:46.49 | jacques | purl, please join #debonaras |
| 07:46.51 | ka6sox-away | no fog tongiht! |
| 07:47.22 | jacques | purl, do you even know what debonaras is? |
| 07:47.27 | ka6sox-away | nope |
| 07:47.38 | ka6sox-away | ~status |
| 07:47.38 | purl | Since Tue Nov 1 20:44:51 2005, there have been 22 modifications, 229 questions, 0 dunnos, 0 morons and 234 commands. I have been awake for 2d 11h 2m 47s this session, and currently reference 0 factoids. I'm using about 19580 kB of memory. With 0 active forks. Process time user/system 6374.11/358.02 child 0.04/0.01 |
| 07:48.09 | ka6sox-away | ~slugtime |
| 07:48.10 | purl | rumour has it, slugtime is 40 hour days 10 hours in 4 timezones with overlap |
| 07:48.23 | ka6sox-away | ~jacques |
| 07:48.24 | purl | from memory, jacques is running rxvt quite well on the tux, tho it requires a bit of mucking with ptys, or the master of NWS station codes |
| 07:48.33 | jacques | that's from 2002 |
| 07:48.37 | jacques | good memory |
| 07:48.46 | jacques | ~softgun |
| 07:49.14 | ka6sox-away | thats a big fat DUNNO |
| 07:49.25 | ka6sox-away | time for me to sleep...catch you later. |
| 07:49.54 | jacques | later ka6sox-zzzz |
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| 14:22.13 | vmaster | you guys discuss the interesting stuff at the worst time possible: 5am to 9am |
| 14:28.20 | [g2] | 5am to 9am where ? :) |
| 14:29.11 | vmaster | Germany, GMT+1 |
| 14:29.39 | [g2] | oh so you mean 11AM to 3PM :) |
| 14:30.22 | [g2] | as it's 9:30AM here :) |
| 14:31.58 | vmaster | mhh, 11PM to 3AM then for you |
| 14:32.37 | prpplague | hehe |
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| 18:38.05 | ka6sox | vmaster, too early for Uni students? |
| 18:44.27 | vmaster | heh, yeah, got up one hour after you went to bed |
| 19:07.27 | lennert | tonight is hacking night! |
| 19:11.24 | ka6sox-office | lennert, do you have a S3 board? |
| 19:11.35 | ka6sox-office | never mind...You must have. |
| 19:11.36 | lennert | ka6sox-office: yes, the digilent one |
| 19:11.40 | lennert | yeah, for pong :) |
| 19:12.25 | ka6sox-office | lets see about putting together something that we can use to make the JTAG faster. |
| 19:12.34 | ka6sox-office | (and do some COMP stuffs. |
| 19:12.46 | lennert | yes |
| 19:12.50 | lennert | that's one of the things 'on the list' |
| 19:13.15 | lennert | i have to look into how to build the interface circuitry |
| 19:13.24 | ka6sox-office | okay since there are several of us we should work together on it. |
| 19:13.30 | lennert | i have another xilinx CPLD board with jtag, so i could in theory use the s3 board to jtag the cpld board |
| 19:15.42 | lennert | i've thought about vmaster's idea, and i can't poke any holes into it |
| 19:15.47 | vmaster | i have working code to program coolrunner devices with xilinx xsvf files |
| 19:15.58 | lennert | i.e. either you scan into IR, or you scan into DR, and other cases are 'exceptional |
| 19:16.22 | lennert | vmaster: programming sp3 is trivial, see http://svn.wantstofly.org/vhdl/utils/ |
| 19:18.59 | vmaster | yeah, xcr is almost as easy, it's just a few command types that tell you what to do, like irscan, drscan, move the statemachine |
| 19:19.12 | lennert | yeah |
| 19:19.20 | lennert | i was looking at it too generally |
| 19:19.33 | lennert | i.e. when you clock a sequence of bits, you want to be able to control tdi/tms and store tdo somewhere |
| 19:19.44 | vmaster | yep |
| 19:19.55 | lennert | but indeed, you're mostly either 1/ clocking tms to get into another state; or 2/ clocking tdi in shift-ir or shift-dr. |
| 19:20.02 | lennert | that observation alone makes it a bunch simpler. |
| 19:24.15 | ka6sox-office | yes I agree. |
| 19:24.28 | ka6sox-office | we need to be able to use the onboard memory for that job. |
| 19:24.54 | ka6sox-office | I was thinking of working on the memory code today/this weekend. |
| 19:25.16 | vmaster | the low-level stuff is trivial - but to achieve high performance, you'll have to define a higher-level interface |
| 19:25.46 | ka6sox-office | I wonder if we use the picoblaze we might get some performance help. |
| 19:25.56 | vmaster | http://www.digilentinc.com/info/S3Board.cfm <- that's the board you have? |
| 19:26.00 | ka6sox-office | (high lev el stuff) |
| 19:26.07 | ka6sox-office | vmaster: yes |
| 19:26.08 | lennert | vmaster: yup |
| 19:27.37 | lennert | vmaster: it can do 180mhz des 8) |
| 19:27.52 | ka6sox-office | lennert: what size S3 is on your board? |
| 19:27.55 | vmaster | heh, yeah, saw your vhdl code |
| 19:28.00 | lennert | xc3s200 :( |
| 19:28.10 | lennert | i'd love an xc3s1000 |
| 19:29.32 | ka6sox-office | okay so I think we all have the same size box. |
| 19:29.51 | ka6sox-office | I forget how many slices a Picoblaze takes. |
| 19:29.57 | vmaster | i'll talk to my professor to get me one of these... there should be some money left for toys to play with |
| 19:30.17 | ka6sox-office | vmaster: the 1000 or 200? |
| 19:31.04 | vmaster | how much $$$ is the difference between the two? |
| 19:31.09 | lennert | vmaster: $50 |
| 19:31.39 | vmaster | mhh, guess the S1000 then |
| 19:31.51 | ka6sox-office | makes sense. |
| 19:32.12 | ka6sox-office | okay I still think with the 200 we should be able to make this go. |
| 19:32.34 | vmaster | yeah, of course |
| 19:32.44 | lennert | you don't need much logic for jtag |
| 19:33.15 | vmaster | not for low-level stuff |
| 19:33.15 | ka6sox-office | its mostly about cranking up the memory bandwidth. |
| 19:34.03 | ka6sox-office | I would like to see something that has a pattern matching system so that we can program things with the S3 doing all the heavy lifting. |
| 19:34.14 | lennert | even if you define higher-level primitives (such as "read the word at xscale memory location X using icache jtag"), you still don't need much logic |
| 19:34.42 | vmaster | mhh, that's probably too high - would be very target specific |
| 19:34.56 | lennert | vmaster: yes, it's just for illustration |
| 19:34.57 | ka6sox-office | that is what I would like to do but use some of the RAM for that kind of matching. |
| 19:35.10 | ka6sox-office | so that the box would be "universal |
| 19:42.10 | vmaster | what host interface do you want to use? usb 2.0? |
| 19:44.45 | lennert | the digilent sp3 doesn't really have any suitable interface |
| 19:45.44 | ka6sox-office | I was thinking about using the usb2.0 interface with the uC interface. |
| 19:45.51 | ka6sox-office | (not serial but parallel) |
| 19:45.54 | vmaster | the new xilinx board is going to have usb 2.0, iirc? |
| 19:46.03 | ka6sox-office | the new one will yes. |
| 19:46.34 | ka6sox-office | so for now what I intend to do is do development on the S3 and eventually switch to the S3e |
| 19:47.03 | ka6sox-office | I can't remember if its going to be Dram or Sram. |
| 19:47.05 | lennert | i guess i should sell my s3 and get an s3e too |
| 19:47.17 | lennert | (but i have a v2pro board on order as well..) |
| 19:47.20 | ka6sox-office | lennert, that is a good choice. |
| 19:47.31 | ka6sox-office | the v2pro can have the PPC cores. |
| 19:48.23 | lennert | yeah |
| 19:48.27 | lennert | i also have an ml310 to work with now |
| 19:50.41 | ka6sox-office | lennert, do we have armeb gnat? |
| 19:50.47 | lennert | ka6sox-office: nope |
| 19:50.53 | lennert | ka6sox-office: regular arm doesn't have gnat either |
| 19:50.57 | lennert | ka6sox-office: gnat needs gnat to build, apparently |
| 19:51.07 | lennert | ka6sox-office: but drow said there's no reason why arm doesn't have gnat |
| 19:51.13 | lennert | ka6sox-office: so it shouldn't be that hard to add |
| 19:51.34 | ka6sox-office | that would be useful to me. |
| 19:52.40 | ka6sox-office | the S3e board with 32mb of RAM would be quite a good box to look at using for a debugger. |
| 19:53.10 | lennert | i'd have to take [g2] up on his offer :) |
| 20:03.50 | [g2] | heh :) |
| 20:05.03 | lennert | [g2]: for you :) |
| 20:05.29 | [g2] | hey I'd love to have you on my team |
| 20:05.44 | [g2] | but I think you are already doing work |
| 20:06.06 | lennert | i'm doing lots of stuff all over the place |
| 20:06.17 | lennert | the current day job isn't too bad |
| 20:06.22 | [g2] | I know :) I can barely keep up |
| 20:06.28 | lennert | hehe |
| 20:07.17 | [g2] | so you've got the UART going right ? |
| 20:07.31 | lennert | yeah |
| 20:07.59 | [g2] | you guys know of any modem chips ? |
| 20:08.40 | lennert | nope, sorry |
| 20:09.11 | ka6sox-office | not anymore..all the ones I know are obsolete. |
| 20:09.34 | [g2] | are there current gen ones ? |
| 20:10.04 | ka6sox-office | winmodems only now :P |
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