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| 00:42.26 | ds2 | just wondering... what is currently more common among the people here when testing out new kernels - TFTP download or serial download then go or JTAG? |
| 00:44.21 | CosmicPenguin | back when I was doing ARM, it was nearly always serial download |
| 00:44.26 | CosmicPenguin | but that was with a working bootloader |
| 00:44.39 | CosmicPenguin | s/ARM/ARM and MIPS/ |
| 00:45.44 | CosmicPenguin | I take that back - now that I remember it, all our alchemy stuff was TFTP |
| 00:46.19 | ds2 | I see. guess it isn't that unreasonable for people to complain about not having TFTP downloads working |
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| 14:08.54 | sunrunner20|prom | so, lets see here |
| 14:08.56 | sunrunner20|prom | who makes diodes |
| 14:09.08 | sunrunner20 | fairchild, ST- who else? |
| 14:09.46 | sunrunner20 | linear technology, national semi |
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| 14:35.03 | chouimat|work | morning |
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| 15:04.26 | wmat | prpplague: new host is almost ready |
| 15:04.34 | prpplague | wmat: good deal |
| 15:05.01 | wmat | prpplague: I can't get the stupid pretty URL's to work though. Man, you'd think this crap would be easier. |
| 15:05.11 | wmat | prpplague: and I have to port over about 9 pages |
| 15:05.22 | prpplague | pretty urls? |
| 15:05.25 | wmat | prpplague: I see you and Robot Guy doing a lot of posting on the old site :/ |
| 15:05.44 | prpplague | wmat: for my stuff, i expected to redo them |
| 15:05.50 | prpplague | wmat: it was mainly for me to keep track of stuff |
| 15:05.55 | prpplague | wmat: no worries |
| 15:06.06 | prpplague | wmat: i warned robotguy |
| 15:06.10 | wmat | URLs without the crap in them |
| 15:06.38 | wmat | OK, my backup is to Feb. 14th |
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| 15:30.15 | RobotGuy | My USB WiFi B/G adapter works on my PC Linux, but uses a different module. |
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| 15:37.40 | prpplague | RobotGuy: oh? |
| 15:37.46 | prpplague | RobotGuy: whuich module does it use? |
| 15:37.51 | prpplague | ce_geek: greetings? |
| 15:37.58 | RobotGuy | Yes, I am using it right now. |
| 15:38.21 | RobotGuy | It uses the rt73usb module, which requires kernel 2.6.24 or later. |
| 15:38.34 | ce_geek | prpplague: Greetings indeed. |
| 15:38.46 | ce_geek | prpplague: I've been out of the office :-/ |
| 15:38.51 | prpplague | RobotGuy: ahh interesting |
| 15:38.57 | prpplague | ce_geek: np |
| 15:39.03 | prpplague | ce_geek: whats cookin? |
| 15:39.17 | RobotGuy | The rt73usb module is contained in the rt2x00 sources. |
| 15:39.51 | prpplague | RobotGuy: ahh interesting |
| 15:39.54 | RobotGuy | Actually, it is IN kernel 2.6.24 or later. |
| 15:41.29 | RobotGuy | It does not support WPA yet. I had to drop my router back to WEP to make it work. |
| 15:41.54 | RobotGuy | Well, more correctly, wireless-tools does not support WPA yet apparently, even in v29. |
| 15:43.38 | sjhill | RobotGuy: i assume you got my email |
| 15:44.01 | RobotGuy | sjhill: Yes, I got it, thanks. Those are all 12V? |
| 15:44.13 | sjhill | yes |
| 15:44.48 | RobotGuy | The F2 are heavier duty than the F1? |
| 15:44.55 | sjhill | omg, yes |
| 15:44.57 | sjhill | 3x |
| 15:45.11 | RobotGuy | Oh, wow, how much heavier weight wise? |
| 15:45.29 | sjhill | 3 to 4 times |
| 15:45.30 | ce_geek | prpplague: Not much. I've been occupied with other junk, haven't had any time to play with the hammer :( |
| 15:45.56 | RobotGuy | sjhill: Hmmmm, probably cost a bunch to ship then. |
| 15:46.01 | prpplague | ce_geek: np |
| 15:46.29 | sjhill | RobotGuy: well, send me your address and i'll get a shipping estimate for you |
| 15:46.42 | RobotGuy | sjhill: OK, will do. |
| 15:47.05 | CosmicPenguin | watch out for that sjhill guy - he's dangerous |
| 15:47.07 | sjhill | RobotGuy: i got them for free...so that means i'm going to give you a great price |
| 15:47.33 | sjhill | RobotGuy: if you can find a charging circuit or adapter for those, let me know |
| 15:49.29 | RobotGuy | sjhill: You've got mail. |
| 15:54.02 | sjhill | RobotGuy: so do you |
| 15:59.54 | ce_geek | prpplague: I need to set up a subversion repo for the documentation and such. |
| 16:02.43 | prpplague | ce_geek: yea, revsion control is a good thing |
| 16:03.03 | prpplague | ce_geek: so whats your overall impression of the hammer kit so far? |
| 16:03.16 | ce_geek | prpplague: i've got to go eat food, then I have class for an hour and a half (with Eason). Perhaps when I get back I'll see if you've got a few minutes to point me in some good directions. |
| 16:03.30 | prpplague | ce_geek: okie dokie |
| 16:03.37 | prpplague | ce_geek: i'll probably on line |
| 16:03.56 | prpplague | sjhill: did you get your arm buildroot working? |
| 16:04.00 | ce_geek | prpplague: Very impressed. Eason and another faculty member want to get some, they're anxious for me to get stuff going, but the time I have for this is a bit limited in the short term. |
| 16:04.22 | ce_geek | prpplague: I'll be surprised if they don't buy some kits. |
| 16:04.26 | prpplague | ce_geek: great |
| 16:04.47 | prpplague | ce_geek: well feel free to email or post questions here |
| 16:05.17 | ce_geek | prpplague: Will certainly do. I've also kept our previous conversations that have details in them that I'll parse out for the documentation too. Just a matter of getting some ducks in a row. |
| 16:05.38 | ce_geek | prpplague: Probably catch you later. gtg. |
| 16:05.41 | prpplague | ce_geek: hehe yea, time is a rare thing |
| 16:05.43 | prpplague | ce_geek: later |
| 16:07.07 | RobotGuy | sjhill: I'll check with my local Batteries Plus store. If anyone knows what it takes to charge those, they will. |
| 16:08.17 | prpplague | RobotGuy: to charge what? |
| 16:08.34 | RobotGuy | prpplague: The batteries sjhill has. |
| 16:08.45 | prpplague | RobotGuy: url? |
| 16:09.15 | RobotGuy | prpplague: http://www.power-sonic.com/index.php?id=31&gr_id=17 |
| 16:09.42 | RobotGuy | prpplague: Their PS-1270 battery. |
| 16:09.46 | prpplague | ahh lead acid |
| 16:10.40 | RobotGuy | http://www.power-sonic.com/site/doc/prod/88.pdf |
| 16:17.43 | RobotGuy | I'm out for now. I'll be back later if I feel up to it. |
| 16:21.36 | prpplague | SpeedEvil: ping |
| 16:32.54 | SpeedEvil | ong |
| 16:32.59 | SpeedEvil | s/o/po/ |
| 16:33.22 | prpplague | SpeedEvil: was it you i was discussing the p2p with yesterday? |
| 16:34.27 | SpeedEvil | What aspect of p2p |
| 16:34.43 | SpeedEvil | Oh - PSP |
| 16:34.44 | SpeedEvil | yes |
| 16:34.45 | prpplague | we were talking about the usb |
| 16:34.55 | prpplague | SpeedEvil: oops sorry typo |
| 16:35.04 | prpplague | SpeedEvil: did a test last night |
| 16:35.48 | prpplague | 2xAA + TPS63000 + hammer + 2gb thumb drive + usbhostfs + psp == works |
| 16:36.01 | SpeedEvil | as? |
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| 16:36.16 | SpeedEvil | you mean you can load programs off the hammer? |
| 16:36.17 | prpplague | SpeedEvil: 2gb thumb drive for the psp |
| 16:36.44 | prpplague | SpeedEvil: usbhostfs allows you to use a host pc as file system |
| 16:36.50 | prpplague | SpeedEvil: in this case the host pc is the hammer |
| 16:37.27 | prpplague | SpeedEvil: kind of like nfs over usb |
| 16:37.30 | chouimat|work | psp? |
| 16:37.38 | prpplague | play station portable |
| 16:38.18 | SpeedEvil | ah right, so it's a standard? |
| 16:38.21 | chouimat|work | prpplague: wasn't sure ... and thanks to remind me I need to get a new battery for mine so I can hack the one I have to be able to install linux and other custom made stuff on my psp |
| 16:38.25 | SpeedEvil | usbhostfs that the PSP uses |
| 16:38.33 | SpeedEvil | I thought PSP had no MMU |
| 16:38.55 | prpplague | SpeedEvil: i'm sure he meant uclinux |
| 16:38.57 | chouimat|work | SpeedEvil: http://jacksonm80.googlepages.com/linuxonpsp.htm |
| 16:39.03 | chouimat|work | it's uclinux :) |
| 16:39.11 | prpplague | SpeedEvil: no its not a standard, but the code is available |
| 16:39.48 | prpplague | chouimat|work: you used the usbhostfs yet? |
| 16:39.51 | CosmicPenguin | WE don't need no stinkin' MMUs |
| 16:40.05 | prpplague | hehe |
| 16:40.16 | chouimat|work | prpplague: I didn't knew such thing existed ... url |
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| 16:43.55 | prpplague | chouimat|work: http://www.psp-hacks.com/forums/about40419.html&p=1 |
| 16:44.54 | prpplague | chouimat|work: picture it this way, the psp plugs into the hammer, and a 2gb thumb drive plugged in to the hammer |
| 16:45.24 | prpplague | chouimat|work: the hammer is just a middle man and moves the data from the 2gb thumb drive to the psp when it is requested |
| 16:45.45 | chouimat|work | prpplague: cool |
| 16:46.01 | ce_geek | prpplague: Mind sending me the link to that .iso file? I have the CD, but I'd like to put the .iso in along with all the other stuff. |
| 16:46.02 | prpplague | chouimat|work: gonna try removing the UMD to see if i can fit everything in there |
| 16:46.19 | chouimat|work | prpplague: I have a slim psp so I need a lot of work to get hacks working on it |
| 16:46.34 | prpplague | ce_geek: http://www.tincantools.com/prpplague/hammer-kit.iso |
| 16:47.38 | ce_geek | prpplague: thx. Starting to get some things organized at least before I head off to class. I've got copies of some stuff you've already explained, gonna put it up in the repo for now. |
| 16:47.50 | prpplague | okie dokie |
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| 16:58.05 | ce_geek | prpplague: Would you call the CD included with the kit a "Board Support Package"? |
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| 18:01.26 | prpplague | ce_geek: yea i guess you would |
| 18:02.07 | CosmicPenguin | I'm not a huge fan of the BSP term - its very overloaded |
| 18:02.19 | CosmicPenguin | what you get from a Linux vendor isn't what you would get from a CE vendor, for example |
| 18:03.05 | prpplague | CosmicPenguin: true |
| 18:05.12 | prpplague | i guess it might be more accurately defined as a Board Developement Resource |
| 18:11.59 | ce_geek | prpplague: I've got hammer carrier REV-C, but the schematics I have say REV-B. What's the difference? |
| 18:20.28 | chouimat|work | the 'C' ? |
| 18:22.56 | CosmicPenguin | heh |
| 18:23.00 | CosmicPenguin | nicely done |
| 18:33.19 | prpplague | ce_geek: oops, let me double check |
| 18:33.46 | prpplague | ce_geek: you sure? |
| 18:34.11 | prpplague | ce_geek: there is a hammer schematic rev b, and the hamemr_carrier rev c |
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| 19:18.12 | ce_geek | prpplague: I lied to you, sorry about that. |
| 19:18.17 | prpplague | ce_geek: np |
| 19:24.09 | ce_geek | <PROTECTED> |
| 19:27.22 | prpplague | ce_geek: the nail board? |
| 19:27.35 | ce_geek | yuh |
| 19:27.56 | prpplague | ce_geek: end of march for $189 |
| 19:28.18 | ce_geek | prpplague: Will there be a kit for it with the flyswatter and such? |
| 19:28.38 | prpplague | ce_geek: hehe the nail has a flyswatter built in |
| 19:29.18 | ce_geek | prpplague: oooooh. Mind sending the link for that again? Eason was asking about other products and I brought that up. He'll probably want to take a look at that as another option. |
| 19:29.41 | ce_geek | prpplague: I'd be interested in any feedback you have about which one would be best for teaching with. |
| 19:29.46 | ds2 | prpplague: http://www.dealextreme.com/details.dx/sku.3308 more expensive but might be easier to get going |
| 19:29.46 | prpplague | ce_geek: http://www.elinux.org/Nail_Board |
| 19:30.31 | ds2 | does the $189 price include the hammer board itself? |
| 19:30.36 | prpplague | ds2: yea |
| 19:30.50 | ds2 | Hmm |
| 19:31.00 | prpplague | ds2: i'm not sure but that one looks like it does charging not continuous |
| 19:31.18 | ds2 | so I could wait til march and get a nail and have a spare board lying around or I can just get the flyswatter.... so many choices |
| 19:31.32 | ds2 | prpplague: yes but that one I think is regulated and might have an onboard battery |
| 19:32.03 | prpplague | ds2: yea, thats not what i want |
| 19:32.08 | prpplague | ds2: i don't want a battery |
| 19:32.17 | prpplague | ds2: the ones i'm looking at have a coil |
| 19:32.25 | ds2 | ah okay you want a raw dymo/generator? |
| 19:32.54 | prpplague | ds2: yea with a coul |
| 19:32.55 | prpplague | coil |
| 19:33.32 | ds2 | there have been counterfeit versions of those shake lights with the coil where the coil doesn't work and is really a li battery powered LED light :/ |
| 19:33.48 | prpplague | ds2: i.e. you wind it up and it slowly unwinds producing around +4v |
| 19:33.48 | ds2 | makes me worried about find those too cheap |
| 19:34.01 | ds2 | I have not seen the ones like that |
| 19:34.07 | sunrunner20 | lol |
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| 19:35.09 | ce_geek | prpplague: My computer just locked up. That was less than awesome..... anyway, did I miss any thoughts about the nail board? |
| 19:36.29 | sunrunner20 | [13:32:09] <sunrunner20> lol |
| 19:36.40 | prpplague | ce_geek: http://www.elinux.org/Nail_Board |
| 19:36.48 | prpplague | ce_geek: the nail has a flyswatter built in |
| 19:36.52 | prpplague | ce_geek: its all usb powered |
| 19:37.03 | ce_geek | prpplague: Yup, got that. Sending the link to Eason so he can have a look. |
| 19:37.16 | prpplague | ce_geek: might not be the best for doing classes, but its pretty handy for portable dev |
| 19:37.44 | ce_geek | prpplague: Ok. Same access to I/O pins though, right? could solder some headers on the two sides? |
| 19:37.57 | ds2 | ce_geek: will the student own the unit or is it school property? |
| 19:38.14 | prpplague | ds2: http://sports-imports.stores.yahoo.net/suacgeforcep.html |
| 19:38.16 | ce_geek | prpplague: The school would probably buy it. |
| 19:38.31 | prpplague | ce_geek: yea, you could stick hack it |
| 19:38.54 | prpplague | ce_geek: basically its the same as the carrier board, just smaller |
| 19:39.19 | ce_geek | prpplague: And a flyswatter! |
| 19:39.29 | prpplague | ce_geek: indeed |
| 19:39.47 | ce_geek | prpplague: Rick wants to know the difference between the two USB ports on the hammer carrier. One is a master, one's a client? |
| 19:40.04 | ce_geek | prpplague: He's hanging over my shoulder wondering why I don't have this thing doing backflips yet. |
| 19:40.19 | ds2 | prpplague: in the Nail board if I strip off the hammer, is there anything i loose on there compared to the flyswatter? (this is in the context of using it as a JTAG tool) |
| 19:41.54 | prpplague | ce_geek: hehe, yes one is a usb device(slave), the other is a usb host |
| 19:41.59 | ce_geek | ds2: Oops. The school would probably own them. |
| 19:42.17 | ds2 | ce_geek: the nail might be easier to steel then the full size one |
| 19:42.44 | prpplague | ds2: other than it doesn't really make much sense to use it that way |
| 19:43.14 | prpplague | ds2: nail isn't really intended to be used without a hammer module |
| 19:43.21 | ds2 | prpplague: why? |
| 19:43.53 | ce_geek | ds2: I see what you're getting at. Generally, we've got a pretty tight knit student base and good student-faculty connections. This would be for a 4th year class, too. |
| 19:43.59 | prpplague | ds2: it just isn't |
| 19:43.59 | ds2 | i want to eventually play with a hammer board (no time at the moment) and the price of the nail is cheaper then hammer + flyswatter |
| 19:44.55 | prpplague | ds2: i mean you could replace the hammer 40-pin dip with breakout board i guess |
| 19:45.06 | prpplague | ds2: but that wasn't really the intended purpose |
| 19:46.28 | ds2 | prpplague: is the nail missing some of the voltage translations, etc? |
| 19:46.51 | prpplague | ds2: voltage for what? |
| 19:47.21 | ds2 | prpplague: other target voltages like the 1.2V support |
| 19:47.29 | ds2 | just for the jtag functionality |
| 19:47.41 | prpplague | ds2: yea, the jtag on the nail is specific to 3.3v |
| 19:47.53 | ds2 | prpplague: okay, that's what I wanted to find out |
| 19:48.02 | ds2 | so the nail combo is off the plate for me |
| 19:48.38 | prpplague | ds2: yea it wasn'r designed to be a stand alone device |
| 19:48.49 | prpplague | ds2: without the usage of a hammer module |
| 19:48.58 | ds2 | i wasn't sure why other then your words, now I know =) |
| 19:49.10 | prpplague | ds2: the flyswatter is independent of the hammer |
| 19:49.15 | ds2 | right |
| 19:49.37 | ds2 | but you could have been and miniturized the full flyswatter for odd ball folks like me ;) |
| 19:49.48 | ds2 | been nice |
| 19:51.11 | ce_geek | prpplague: How unhappy is the hammer board if you just turn it off without 'halt'? |
| 19:51.35 | chouimat|work | prpplague: I was looking at the jtag interface for the avr32 and it's 325$ ... I think I won't order it :) |
| 19:51.40 | prpplague | ce_geek: no problem at all |
| 19:51.53 | agaffney | ce_geek: I can't imagine that the board itself would give a flying fsck :P |
| 19:52.09 | agaffney | but if you have anything actively writing to "disk", it'll be quite unhappy |
| 19:52.19 | chouimat|work | ;) |
| 19:52.24 | ce_geek | Makes sense. |
| 19:52.59 | agaffney | no different than any "normal" system running linux |
| 19:53.20 | ds2 | 325 for a jtag... ouch |
| 19:53.22 | prpplague | ce_geek: the default configuration for the hammer is to use a initrd |
| 19:53.33 | ce_geek | Wow, minicom is a hog. |
| 19:53.40 | ds2 | use c-kermit |
| 19:53.43 | prpplague | ce_geek: and a jffs2 flash partition for storage |
| 19:53.47 | ce_geek | Pegs one of my cpus. |
| 19:54.42 | ce_geek | Hmmn, doesn't peg for chocobo. Maybe I'm doing something different. |
| 19:56.04 | ce_geek | Heh, now i can't reproduce it. Great. |
| 19:56.42 | prpplague | hehe |
| 20:06.50 | ds2 | is minicom really that much easier to use then kermit? |
| 20:07.07 | ce_geek | I dunno, haven't played with it a whole lot. I'll have to try kermit sometime. |
| 20:07.18 | ce_geek | Chocobo recommends gtkterm |
| 20:07.34 | ds2 | but then you need a gooey running |
| 20:07.56 | ce_geek | I'm using that on my desktop machine. |
| 20:08.26 | ds2 | the thing with minicom that bugs the hell out of me is it doesn't always play nicely with 24 line vs 25 line displays |
| 20:08.26 | ce_geek | For OpenOCD, am I going to need the --enable-ft2232-libftdi option? |
| 20:11.46 | prpplague | <PROTECTED> |
| 20:12.20 | prpplague | ce_geek: you can use the open source libftdi with the flyswatter, but we ship libftd2xx |
| 20:12.25 | prpplague | ce_geek: since it is faster |
| 20:12.50 | ce_geek | prpplague: Do I need that if my system already has ftdi support? |
| 20:13.05 | ce_geek | prpplague: Or is this to make OpenOCD play nice with it? |
| 20:15.40 | ce_geek | *reading* |
| 20:19.09 | prpplague | ce_geek: sorry, kinda busy today |
| 20:19.24 | ce_geek | prpplague: No problem at all. |
| 20:19.24 | prpplague | ce_geek: yea, you'll need the libraries on your system |
| 20:19.34 | ce_geek | Why the usbfs stuff? |
| 20:19.58 | prpplague | ce_geek: openocd uses the usbfs to identify and pass info to the ftdi device |
| 20:20.08 | ce_geek | Ah ok |
| 20:20.46 | prpplague | ce_geek: there is alot of work going into making openocd alot more user friendly, but it's slow progress |
| 20:21.36 | ce_geek | prpplague: Doesn't look like it comes with much documentation, or manpages. |
| 20:21.51 | ce_geek | prpplague: I see doc/openocd.1 |
| 20:22.20 | prpplague | ce_geek: indeed it is sparse, but to be honest most jtag documenation is very vague if it exists |
| 20:22.30 | ce_geek | prpplague: Lovely. |
| 20:22.33 | prpplague | ce_geek: the openocd wiki does provide alot of info |
| 20:22.43 | prpplague | ce_geek: and there is a support forum on sparkfun |
| 20:22.48 | ce_geek | prpplague: I'll head there now. |
| 20:23.13 | prpplague | http://forum.sparkfun.com/viewforum.php?f=18&sid=52852b4a2f1509b7c9406883c42c5e2b |
| 20:24.02 | prpplague | ce_geek: http://openfacts.berlios.de/index-en.phtml?title=Open_On-Chip_Debugger |
| 20:24.29 | ce_geek | looks like it runs .ocd scripts that make stuff happen? Looking at the mww command, the flash, the dump_image, etc. |
| 20:24.53 | prpplague | ce_geek: yea the default config that is shipped is a script to reflash the hammer |
| 20:25.21 | ce_geek | prpplague: does that take care of _everything_, like if the hammer board was completely blank? |
| 20:25.47 | prpplague | ce_geek: correct |
| 20:25.58 | ce_geek | prpplague: Looks like one would have to have some intimate details to come up with that on their own. |
| 20:26.06 | ce_geek | prpplague: Lots of addresses.... |
| 20:26.12 | prpplague | ce_geek: you can use openocd interactively by using the hammer-noscript.cfg file, and then telnet to localhost 4444 |
| 20:26.38 | prpplague | ce_geek: we are working on a more robust flash script |
| 20:26.48 | prpplague | ce_geek: most of the addresses are to bringup the sdram |
| 20:26.49 | ce_geek | prpplague: What are the mww commands doing? |
| 20:26.57 | prpplague | ce_geek: sdram init |
| 20:27.03 | ce_geek | prpplague: Okay. |
| 20:27.19 | ce_geek | prpplague: At some point, I'd like to understand that piece more, but I'll just take it for what it is right now. |
| 20:27.35 | prpplague | ce_geek: hehe, indeed, the sdram is black magic |
| 20:27.52 | prpplague | ce_geek: when you have time, let me know we can go over the init process |
| 20:28.02 | prpplague | ce_geek: the sdram datasheets are in the hammer's docs dir |
| 20:28.31 | prpplague | ce_geek: our primary issue at the momment is the lack of detailed educational documentation |
| 20:28.49 | prpplague | ce_geek: the hammer and related devices are still documented in a form that appeals to EE's |
| 20:29.05 | prpplague | ce_geek: software folk aren't terrible comfortable with that |
| 20:29.08 | ce_geek | prpplague: Is all the stuff in the datasheets, and just not too friendly? |
| 20:29.14 | prpplague | ce_geek: indeed |
| 20:29.23 | prpplague | ce_geek: very unfriendly |
| 20:29.44 | ce_geek | prpplague: Ahh okay. Yeah, I'll want to talk about that at some point, but I can ignore that for now :) |
| 20:29.45 | prpplague | ce_geek: imho 90% of my job as an embedded engineer is to dig the correct info out of datasheets |
| 20:30.10 | ce_geek | prpplague: HAHA yup. And when you're done, many people don't understand "what's the big deal?" |
| 20:30.11 | prpplague | ce_geek: the other 10% is pretty easy after i have the correct info, hehe |
| 20:30.17 | prpplague | ce_geek: exactly |
| 20:31.20 | ce_geek | prpplague: Okay, moving on.... what's the arm7_9 stuff doing? Looks like some enables.... :) |
| 20:32.20 | prpplague | ce_geek: after the sdram is initialized, the arm7_9 enables some options in openocd that take advantage of some arm7 and arm9 data transmethods |
| 20:32.28 | prpplague | ce_geek: transfer methods |
| 20:32.48 | prpplague | ce_geek: basically a mini version of dcc is uploaded to sdram and is run |
| 20:32.57 | prpplague | ce_geek: just like you'd dcc a file to someone on irc |
| 20:33.13 | prpplague | ce_geek: this makes transfering something like a bootloader or kernel faster |
| 20:34.19 | ce_geek | prpplague: Hrm, not familiar with dcc. I'll have to check that out. |
| 20:34.38 | prpplague | ce_geek: think of dcc like a small version of something like xmodem |
| 20:34.52 | ce_geek | prpplague: ok |
| 20:35.06 | ce_geek | prpplague: So apex is the... bootloaderish? |
| 20:35.13 | prpplague | ce_geek: correct |
| 20:35.39 | prpplague | ce_geek: there are a number of bootloaders that will run on arm as well as the s3c2410 |
| 20:35.53 | ce_geek | prpplague: Okay so that is the code that the ARM automagically executes first (reset vector, or something like that?) and it's smart enough to go find the kernel on the filesystem and boot it? |
| 20:35.54 | prpplague | ce_geek: we like apex because of its size and ease of us |
| 20:35.55 | prpplague | use |
| 20:36.13 | prpplague | ce_geek: that is correct |
| 20:36.21 | ce_geek | prpplague: Good, good. |
| 20:37.24 | ce_geek | prpplague: Okay so, when I'm compiling a new kernel for this sucker, I'll basically change..... zImage.bk? |
| 20:37.27 | prpplague | ce_geek: in many ways, bootloaders on arm systems(as well as many other embedded devices) resembles the functionality that the BIOS performes on standard x86 pc |
| 20:38.00 | ce_geek | prpplague: I played with some on the PIC chips, they were handy for programming sometimes. Much cooler when you're using it to load an RTOS |
| 20:38.17 | prpplague | ce_geek: zImage , you might be looking at the backup script i have posted |
| 20:38.33 | ce_geek | Yeah. |
| 20:38.48 | ce_geek | prpplague: I saw the script on the CD, I'll take a look. |
| 20:39.37 | prpplague | ce_geek: the one on the cd is for flashing, the one posted on the wiki is for backing up the bootloader, kernel and ramdisk from a hammer module |
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| 20:39.57 | ce_geek | prpplague: Okay, so where does devmem come into play? Creating the rootfs.arm stuff? |
| 20:40.20 | prpplague | ce_geek: devmem is a small program that can be included in your root file system for the hammer module |
| 20:40.29 | prpplague | ce_geek: you can run it from the console command line |
| 20:40.30 | ce_geek | Ah! dump_image vs. flash erase vs. flash write_binary |
| 20:40.44 | ce_geek | prpplague: Oh. What would you use that for? |
| 20:41.16 | prpplague | ce_geek: for example if you needed to check the configuration of the GPIO ports B you can issue the command: devmem 0x56000010 |
| 20:41.28 | prpplague | ce_geek: which would check that memory location and respond with the value |
| 20:41.42 | prpplague | ce_geek: think of it as old school peek/poke in a single command |
| 20:41.49 | ds2 | software folks need to learn to read EE material ;) |
| 20:42.14 | prpplague | ce_geek: because the MMU for the arm is running you can't directly access a memory location |
| 20:42.29 | ce_geek | prpplague: Ahh, ok. |
| 20:42.31 | prpplague | ce_geek: you need an application to map the memory and provide you the information |
| 20:42.39 | ce_geek | So what creates the rootfs file? |
| 20:42.46 | prpplague | ce_geek: buildroot is what we use |
| 20:43.00 | ce_geek | prpplague: Ah ok. Starting to get a much better picture here. |
| 20:43.09 | prpplague | ce_geek: its a complete environment that generates the cross compiler along with the selected applications |
| 20:43.43 | prpplague | ce_geek: it uses a menu system similiar to the kernel |
| 20:43.49 | prpplague | ce_geek: if you do make menuconfig |
| 20:43.58 | prpplague | ce_geek: you'll be prompted with many options |
| 20:44.11 | prpplague | ce_geek: the buildroot on the cd is shipped with a default hammer configuration |
| 20:44.17 | ce_geek | prpplague: Yup I see the buildroot stuff. |
| 20:44.19 | prpplague | ce_geek: that will build a basic rootfs |
| 20:45.16 | prpplague | ce_geek: there are alot of different build systems |
| 20:45.24 | prpplague | ce_geek: including stuff like openembedded |
| 20:45.41 | ce_geek | prpplague: Slick. |
| 20:45.46 | prpplague | ce_geek: as well as commercial systems like what codesourcery, montavista, and timesys sell |
| 20:45.58 | ce_geek | prpplague: Where's the toolchain, is that part of buildroot? |
| 20:46.04 | prpplague | ce_geek: correct |
| 20:46.04 | ce_geek | prpplague: Or is that something else? |
| 20:46.13 | prpplague | ce_geek: as part of buildroot it generates the toolchain |
| 20:46.19 | ce_geek | prpplague: Okay so that will be used when I write C programs for the hammer, for example? |
| 20:46.28 | prpplague | ce_geek: and all the nessary libraries to cross compile an application |
| 20:46.34 | prpplague | ce_geek: that is correct |
| 20:47.04 | ce_geek | prpplague: What C functions will allow writing to GPIO pins? It's not calls to devmem, is it? |
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| 20:47.27 | prpplague | ce_geek: it depends on where in the system you are |
| 20:47.40 | prpplague | ce_geek: the kernel allows direct access to those devices |
| 20:47.58 | ce_geek | prpplague: Hmmn. Okay. One of the first things I hope to do is drive some stepper motors for example, so I'll need control of 8 pins. |
| 20:48.02 | prpplague | ce_geek: for user land you'll either need to go thru a driver or memory map something similiar to devmem |
| 20:48.25 | ce_geek | prpplague: so on a PC I usually use outb |
| 20:48.47 | prpplague | ce_geek: you are doing that from user land or as a kernel driver? |
| 20:48.50 | ce_geek | prpplague: That kind of stuff work? |
| 20:49.12 | ce_geek | prpplague: user land, as root I guess. |
| 20:49.33 | prpplague | ce_geek: yea, in that aspect you'll use a method similiar to the devmem |
| 20:50.05 | prpplague | ce_geek: basically you'll map a specific memory location and then you can read/write to that location, controlling the i/o |
| 20:50.18 | prpplague | ce_geek: if i have time tomorrow i'll write up and example |
| 20:50.27 | prpplague | ce_geek: other wise it will be monday |
| 20:50.52 | ce_geek | prpplague: Okay, no problem. Just curious how different the programming environment will be. |
| 20:51.19 | ce_geek | prpplague: Where should I be looking for some literature on programming in this environment? Someone's gotta have some C code written to do stuff. |
| 20:51.23 | prpplague | ce_geek: yea there are some similarities between pc and embedded linux |
| 20:51.37 | prpplague | ce_geek: well....... |
| 20:51.54 | prpplague | ce_geek: imho embedded stuff tends to be a "sub-culture" |
| 20:52.07 | prpplague | ce_geek: and there are plenty of examples, you just have to dig |
| 20:52.24 | ce_geek | prpplague: Basically, wondering how difficult it will be to write code on the PC, cross-compile it, copy it over ethernet to the hammer board, and execute it as a user, to test stuff. |
| 20:52.28 | prpplague | ce_geek: the handhelds.org guys have lots of great apps and hacks for working with handhelds that don't ship with linux |
| 20:52.34 | ce_geek | prpplague: That would be _super_ huge if I could do that. |
| 20:52.42 | ce_geek | prpplague: Ah, coo.l |
| 20:53.16 | prpplague | ce_geek: written properly that is doable, however, in most cases people do alot of short cuts that make that not very realistic |
| 20:53.58 | ce_geek | prpplague: Ahh, see, this is exactly why I want Eason to teach this stuff. I have no clue. |
| 20:54.22 | prpplague | ce_geek: what you are talking about doing is very close to the hardware, which means that there isn't much of an abstraction layer to protect you from the device |
| 20:54.23 | ce_geek | prpplague: So I'm learning by teaching him..... which is backwards, but it's fine with me if everyone wins :) |
| 20:54.24 | ds2 | isn't there /dev/rmem to let you memmap and do *(foo) in userland for stuff like GPIOs? not polite but quick and effective |
| 20:55.08 | prpplague | ds2: thats not generally accepted as a good method, imho |
| 20:55.19 | ce_geek | prpplague: so, these "shortcuts" won't work in userland? |
| 20:55.21 | ds2 | I did say it was not polite |
| 20:55.24 | ds2 | =) |
| 20:55.50 | prpplague | ce_geek: lets take a rs-232 port as an example |
| 20:56.07 | ds2 | ce_geek: they can be made to work but as prpplague put it... it is not generally accepted |
| 20:56.16 | prpplague | ce_geek: on the hammer when linux is running, the rs-232 port acts just like any other rs-232 port under linux |
| 20:56.27 | prpplague | ce_geek: you use the same commands to set the baud rate |
| 20:56.40 | prpplague | ce_geek: you can use the same application to access it |
| 20:56.46 | prpplague | ce_geek: no different than on a pc |
| 20:56.51 | prpplague | ce_geek: however.... |
| 20:57.20 | prpplague | ce_geek: the underlying code that makes that serial port on the hammer work is totally different that the code that makes the serial port on a pc work |
| 20:57.32 | ce_geek | prpplague: I see what you're saying. |
| 20:58.03 | prpplague | ce_geek: if you have the same abstration on both the pc and the hammer you can write code that works on either no matter what the hardware is |
| 20:58.15 | ce_geek | prpplague: So, could one create their own outb_hammer() version to write to make it easy for students to write to general purpose IO pins, fore xample? |
| 20:58.20 | prpplague | ce_geek: problem is, what you are talking about doing is on such a low level, that the abstraction isn't there |
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| 20:58.29 | prpplague | ce_geek: exactly |
| 20:58.32 | ce_geek | prpplague: Ok |
| 20:58.40 | prpplague | ce_geek: or even a driver for the kernel |
| 20:58.45 | ce_geek | prpplague: I'll probably have to do that. |
| 20:58.57 | ds2 | does the hammer code have /proc/gpioXXX? |
| 20:59.09 | prpplague | ds2: no i didn't include those entries |
| 20:59.10 | ce_geek | prpplague: or learn about other methods for talking to general purpose IO pins and such. |
| 20:59.36 | prpplague | ce_geek: yep |
| 20:59.43 | ce_geek | prpplague: This is all great stuff. I really hope they change stuff up a bit and talk about it in the undergrad classes. |
| 21:00.01 | RobotGuy | prpplague: Any more news on the bot board?? |
| 21:00.19 | prpplague | ce_geek: indeed, using MC11 and 68k for your dev work is a little out dated |
| 21:00.35 | prpplague | RobotGuy: scheduled to beta around april or may |
| 21:01.16 | prpplague | brb |
| 21:02.00 | RobotGuy | ce_geek: I was almost wireless with hammer. Just waiting for a 2.6.24 kernel. The WiFi adapter I have works great on my PC Linux. |
| 21:03.24 | ce_geek | RobotGuy: What about ethernet based wireless rigs? |
| 21:03.59 | RobotGuy | prpplague: If I were going to do that, I would just get a LinkSys WRT54GL router and put it right on the robot. |
| 21:05.23 | RobotGuy | ce_geek: I have four decks for W.A.L.T.E.R. 2.0, so will have plently of room to put stuff. The decks are 11 1/2" diameter octagon shaped. |
| 21:19.24 | ce_geek | We have one of those routers driving a roomba. Wrote an app to connect to a socket on the router so we can drive it with a joystick. The pan+tilt camera is also fun :) |
| 21:22.26 | RobotGuy | ce_geek: Very nice. I have done a bit of socket programming in Python. |
| 21:23.09 | ce_geek | RobotGuy: I can't take credit for that, that was chocobo. Not quite sure what he wrote it in, but I'd have to guess it was C. |
| 21:23.17 | RobotGuy | I've never programmed an arm before, so making the arm do things will be interesting. |
| 21:23.46 | ce_geek | RobotGuy: Uh, ya. I'm hoping I can get a stepper motor driver working for our robot. |
| 21:23.53 | RobotGuy | I have a 3DOF arm mounted on the front of W.A.L.T.E.R. 2.0, but no servos for it. |
| 21:24.29 | ce_geek | RobotGuy: Oh slick. Where did the arm come from? |
| 21:24.33 | RobotGuy | Making the servos do things will be easy because I use a servo controller for that. |
| 21:24.44 | RobotGuy | ce_geek: I built the arm using Lynxmotion SES brackets. |
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| 21:27.18 | chouimat|work | prpplague 2: The Return ... Let's kick some A* |
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| 21:30.17 | RobotGuy | I need some new .1 spaced connectors for power connectors. They can be screw terminals, of course, but finding a source for them seems to be difficult for some reason. |
| 21:30.34 | RobotGuy | 0.1" spaced, of course. |
| 21:34.45 | ce_geek | RobotGuy: I buy a lot of junk from digikey. |
| 21:37.15 | RobotGuy | ce_geek: Nothing came up on a search for "screw terminals" |
| 21:37.26 | RobotGuy | Well, nothing useful. |
| 21:37.59 | ce_geek | RobotGuy: Their website sucks pretty bad, almost have to have the catalog. So you want a header with 0.1" spacing that you can stick a wire in and secure it by turning a tiny screw? |
| 21:38.17 | RobotGuy | ce_geek: That's what I need. :) |
| 21:38.58 | RobotGuy | ce_geek: 2 and 4 terminal blocks are what I am looking for. I want to replace the flimsy screw terminals Lynxmotion uses with something stronger. |
| 21:39.07 | ce_geek | RobotGuy: Lemme go find a catalog. |
| 21:39.22 | RobotGuy | ce_geek: Thanks. |
| 21:40.44 | RobotGuy | I've broken almost all the screw terminals off my Lynxmotion bot boards now. :( Had to resort to soldering the power wires (16 awg) to the board directly so I could continue working on my BRAT biped project. |
| 21:45.34 | ce_geek | RobotGuy: See also: http://www.powerwerx.com/ |
| 21:45.37 | ce_geek | RobotGuy: still looking |
| 21:48.17 | RobotGuy | Interesting. Actually, I can use any 0.1" spaced pcb type connector as long as it has a locking mechanism for the connection. I don't want my power connections coming unhooked without effort. :) I'll be using these on the hammer bot board also. |
| 21:48.43 | RobotGuy | s/bot/carrier/ |
| 21:50.58 | ce_geek | I've got the right page, just checking spacing stuff. It's given in mm. |
| 21:51.15 | ce_geek | I have some in my hands. They use every other pin in a 0.1" environment. |
| 21:51.27 | RobotGuy | I think it is 3.5 mm I am looking for, but not sure. |
| 21:51.54 | ce_geek | <PROTECTED> |
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| 21:52.27 | RobotGuy | Nope, it would be 2.54 mm spacing on the contacts. |
| 21:52.36 | RobotGuy | ce_geek: OK |
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| 21:53.24 | ce_geek | 309 |
| 21:55.02 | ce_geek | Oops their catalog changed. 1 sec |
| 21:55.03 | RobotGuy | I'm downloading the current DigiKey catalog now. |
| 21:55.13 | ce_geek | Nono, use the online catalog thing. |
| 21:56.58 | ce_geek | Crap I think my catalog is old. |
| 21:57.17 | RobotGuy | I can't read the small print. |
| 21:58.27 | RobotGuy | Ah, found the magnifier. :D |
| 21:58.46 | ce_geek | part#: 277-1273-ND |
| 21:59.25 | ce_geek | Page 331 |
| 21:59.59 | ce_geek | The problem is their $5 handling fee for orders under $25 or something like that. :( |
| 22:00.05 | ce_geek | I never have a problem though. |
| 22:00.36 | ce_geek | Catalog is like a candy store. |
| 22:00.49 | RobotGuy | Their interactive catalog must have different page numbering. :( |
| 22:01.01 | ce_geek | Hrm. |
| 22:01.12 | RobotGuy | I will search for the part number |
| 22:01.22 | ce_geek | Search for the part number. |
| 22:03.22 | RobotGuy | That be what I need! There is other stuff I need to order from DigiKey also, so it won't be hard to meet the $25.00 minimum. I need standoffs for between the decks on W.A.L.T.E.R. |
| 22:04.04 | ce_geek | 2212k-ND |
| 22:04.15 | ce_geek | ish |
| 22:05.39 | RobotGuy | I have the parts I need for the standoffs. :) I have to get 2 1/2" clearance between decks. |
| 22:06.19 | RobotGuy | I mean Digikey part numbers |
| 22:06.33 | RobotGuy | ce_geek: Thanks for the help. :) |
| 22:06.40 | ce_geek | RobotGuy: sure thing. |
| 22:07.31 | RobotGuy | If I could use 6-32 hardware, I could get 2 1/2" hex standoffs, but they will not fit my design. |
| 22:07.53 | ce_geek | I had to order 4-40 stuff for the hammer stuff |
| 22:08.20 | RobotGuy | ce_geek: I use 4-40 for my robots also, at least for W.A.L.T.E.R. |
| 22:08.56 | RobotGuy | I need to get some standoffs and hardware to mount the hammer carrier board on W.A.L.T.E.R. also. |
| 22:09.31 | RobotGuy | As soon as we get a 2.6.24 or later kernel for Hammer, I will be able to use my USB WiFi adapter. :) |
| 22:11.30 | RobotGuy | I already have the configuration commands for the WiFi adapter. |
| 22:18.31 | RobotGuy | Wow, $80.00 to get the standoffs for 4 decks. |
| 22:18.59 | ce_geek | Jeez! How many? |
| 22:19.26 | RobotGuy | 32 of the 2" and 32 of the 1/2" - had to order 40 of each to meet their multiple. |
| 22:19.35 | RobotGuy | Wel, I have not placed the order yet. |
| 22:19.44 | ce_geek | Why so many standoffs?? |
| 22:20.04 | RobotGuy | 8 in between each two decks. |
| 22:20.46 | RobotGuy | Octagonal shaped decks. You can see them on the website for W.A.L.T.E.R. |
| 22:21.13 | RobotGuy | I need to add my 3D CAD model to the website also - it shows things much clearer. |
| 22:22.08 | ce_geek | Ah. Octagon. Robots are expensive :) |
| 22:22.11 | ce_geek | Did I post a link to mine? |
| 22:22.37 | RobotGuy | Yes, they can be expensive. I don't remember if you posted your robot link. |
| 22:23.04 | ce_geek | http://www.eece.maine.edu/research/irl/gog/dscn2338.jpg |
| 22:23.20 | RobotGuy | That increases the cost to complete W.A.L.T.E.R. 2.0 to $340.00 not including hardware to mount the carrier board. |
| 22:24.03 | RobotGuy | Cool! How big is that robot? |
| 22:24.25 | ce_geek | Well that's a wheelchair battery. |
| 22:26.01 | RobotGuy | ce_geek: Way bigger than W.A.L.T.E.R. then. He will be about 12" tall and 11 1/2" diameter with all four decks. |
| 22:26.25 | ce_geek | RobotGuy: -> #robotics |
| 22:26.48 | prpplague | that an itx mobo? |
| 22:27.11 | ce_geek | prpplague: Yup. Epia M-10,000 |
| 22:27.21 | prpplague | ce_geek: ahh |
| 22:27.28 | ce_geek | prpplague: I'm hoping to replace that whole computer with the hammer board :) |
| 22:27.55 | prpplague | ce_geek: cute settup, yea, you should be able to replace that |
| 22:27.59 | RobotGuy | Robert Sheer wants to replace the mini-itx on his Tarzan robot with Hammer. |
| 22:28.03 | prpplague | ce_geek: how big is that bat? |
| 22:28.39 | *** join/#edev lyakh (n=lyakh@p57BD2EB6.dip0.t-ipconnect.de) |
| 22:28.54 | prpplague | ce_geek: 12v? |
| 22:29.08 | RobotGuy | I know we will be able to do WiFi once we get a 2.6.24 kernel. I already proved that. |
| 22:29.20 | ce_geek | prpplague: Yup. |
| 22:29.29 | ce_geek | See also: http://www.eece.maine.edu/research/irl/gog/robot_pictures/dscn2004.jpg |
| 22:29.37 | ce_geek | That's the ANCIENT stepper motor driver. |
| 22:29.52 | prpplague | <RobotGuy> I know we will be able to do <insert> ralink</insert> WiFi once we get a 2.6.24 kernel. I already proved that. |
| 22:30.19 | RobotGuy | prpplague: :P OK, OK. ;) |
| 22:30.50 | RobotGuy | I mean, I proved the WiFi adapter I have will work with Linux. ;) |
| 22:30.51 | prpplague | ce_geek: you ought to be able to get a ton of life out that battery running with the hammer |
| 22:30.56 | prpplague | RobotGuy: yea |
| 22:31.12 | ce_geek | prpplague: Yeah, well, the stepper motors are pretty horrible too. |
| 22:31.12 | prpplague | RobotGuy: there are plenty of others that work |
| 22:31.24 | ce_geek | Better link of the backside of the robot: http://www.eece.maine.edu/research/irl/gog/robot_pictures/dscn2190.jpg |
| 22:31.28 | RobotGuy | prpplague: Hrm. |
| 22:31.31 | prpplague | ce_geek: but that itx-mobo must be drawing a bunch |
| 22:31.42 | ce_geek | prpplague: Hmmn, I forget, but it isn't too bad. |
| 22:31.59 | RobotGuy | I didn't see any docs on WiFi adapters that work on the Wiki. |
| 22:32.03 | ce_geek | prpplague: Maybe a few amps, I can't remember. |
| 22:32.16 | prpplague | *cough* a few Amps? |
| 22:32.37 | ce_geek | prpplague: I should measure it, I have no idea really. |
| 22:32.48 | prpplague | RobotGuy: hehe, just because they aren't listed doesn't mean they don't work, hehe |
| 22:33.26 | ce_geek | It is a 33Ah battery |
| 22:34.27 | RobotGuy | prpplague: I realize that, but it would be nice to have a list of what is already known to work. I am sure it would have influenced which adapter I bought. |
| 22:34.42 | prpplague | RobotGuy: linux-usb.org |
| 22:34.48 | prpplague | ce_geek: wow |
| 22:35.36 | ce_geek | prpplague: I wanted to convert it to DC motors because they'd be a lot smoother and not so hungry, but it was goign to cost like $300 for good motors with shaft encoders and a controller. The department wasn't interested. |
| 22:36.49 | RobotGuy | prpplague: That site is not real useful and it is extremely out of date. |
| 22:37.05 | ce_geek | prpplague: Anyway, not sure if you had a chance to look at the stepper driver, but it's ridiculous. I want to just replace that whole board with a ribbon cable right to the hammer :) |
| 22:37.13 | prpplague | RobotGuy: seems to be for me, what part isn't useful? |
| 22:37.21 | ce_geek | prpplague: ribbon cable to the 8 mosftet gates |
| 22:37.28 | RobotGuy | prpplague: Finding the important information |
| 22:37.56 | ce_geek | prpplague: What time is it where you are? Must be getting to be the end of the day. |
| 22:38.08 | prpplague | RobotGuy: like what? |
| 22:38.13 | prpplague | ce_geek: its 4:38pm |
| 22:38.37 | ce_geek | prpplague: Oh okay so you're only an hour behind. |
| 22:39.35 | *** join/#edev CosmicPenguin (n=nobody@163.181.251.103) |
| 22:39.35 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 22:40.24 | RobotGuy | prpplague: There is no reference for WiFi adapters. |
| 22:40.48 | prpplague | RobotGuy: hmm |
| 22:41.29 | ce_geek | prpplague: I'm going to do some digging tonight, but if you had a chance to slap some simple example code together, that would be interesting. Like, a simple program to blink an LED would be cool. Rick (Eason) wants to see multiple processes running, so I've got to come up with something interesting to do. |
| 22:41.30 | RobotGuy | prpplague: You basically have to know the chipset in order to find out if a given adapter works. |
| 22:41.45 | prpplague | RobotGuy: or the vendor and product ID |
| 22:41.58 | prpplague | RobotGuy: so what aspect of that is a problem? |
| 22:42.06 | ce_geek | prpplague: if i get brave I might try to compile in the kaweth driver toget USB ethernet working. Then I'd want to run some sort of webserver. |
| 22:42.22 | prpplague | ce_geek: hehe indeed, |
| 22:42.37 | prpplague | ce_geek: buildroot has several small web servers |
| 22:42.42 | prpplague | ce_geek: you can choose from them |
| 22:42.46 | ce_geek | prpplague: Beautiful. |
| 22:42.49 | RobotGuy | I have had IrDA networking configured on Hammer. |
| 22:42.50 | prpplague | ce_geek: boa is probably one you might start with |
| 22:42.59 | ce_geek | prpplague: Cool, I'll take a look. |
| 22:43.45 | RobotGuy | prpplague: Having manufacturer/device to driver to kernel links would be useful. |
| 22:44.26 | ce_geek | FWIW, I'm putting my docs here for the time being (it's a web subversion repo): http://www.yessah.net/repos/hammer_board/ |
| 22:44.32 | RobotGuy | It's difficult to find what device uses which chipset, so that can be referenced to the kernel drivers. |
| 22:44.49 | ds2 | RobotGuy: the ralink stuff works fine in 2.6.21 |
| 22:45.01 | ce_geek | It'll probably be really trashy and unorganized until I get stuff working and start to worry about getting a good report together for my class. |
| 22:45.01 | RobotGuy | ds2: It does not. |
| 22:45.10 | ds2 | RobotGuy: I have personally compiled, tested, and run it |
| 22:45.26 | RobotGuy | ds2: The existing ralink rt73 driver does not work for kernel 2.6.22. |
| 22:45.35 | ds2 | RobotGuy: which driver did you get? the one on ralink's site or the legacy driver on the codemonkey site? |
| 22:45.45 | ds2 | RobotGuy: I have it working with 2.6.21 |
| 22:46.00 | ds2 | even does WPA, alas it is done in a nonstandard manner |
| 22:46.06 | ce_geek | prpplague: Oh, and just for sanity, where is pin 1 (where does the red edge of the ribbon cable go) on the hammer board itself for the JTAG cable? |
| 22:46.10 | RobotGuy | ds2: I guess you are better at this than I am then. |
| 22:46.26 | RobotGuy | ds2: Which module are you loading? |
| 22:46.32 | ds2 | RobotGuy: rt73.ko |
| 22:46.48 | RobotGuy | ds2: I could not get that one working with my WiFi adapter. |
| 22:47.02 | ds2 | RobotGuy: I am somewhat curious as to why it is not working for you... useful to know what breaks since I am supporting a setup with that |
| 22:47.06 | prpplague | RobotGuy: you go to the database, type in the vendor id/product id it then tells you if it works, and which driver it uses |
| 22:47.16 | ds2 | RobotGuy: where did you get the code? I know there are at least 2 versions out there |
| 22:47.35 | ds2 | (2 versions of rt73) |
| 22:48.51 | prpplague | ce_geek: pin one of the jtag is the side nearest to the edge of the board |
| 22:49.17 | prpplague | ce_geek: if you look at the silk mask on the carrier board, the pin one side has a / on the corner |
| 22:50.06 | *** join/#edev redblue (i=star@ppp186.109-253-207.mtl.mt.videotron.ca) |
| 22:52.46 | prpplague | ce_geek: are you wanting to blink the LED from a C app in user land? |
| 22:53.32 | ce_geek | prpplague: Yeah |
| 22:53.50 | prpplague | ce_geek: the question is how low level do you want it to be? |
| 22:54.10 | prpplague | ce_geek: writing to the memory location? or simply acessing the sysfs entries? |
| 22:54.21 | ce_geek | prpplague: I guess I'm interested in all levels. |
| 22:54.39 | ce_geek | prpplague: Ahh. Both would be interesting, but writing to the memory location would be good. |
| 22:54.46 | ce_geek | prpplague: Is it memory mapped I/O? |
| 22:54.53 | prpplague | ce_geek: correct |
| 22:55.01 | ce_geek | prpplague: (I've gotta read the datasheet....) |
| 22:55.04 | prpplague | ce_geek: all the i/o on the s3c2410 is memory mapped |
| 22:56.17 | prpplague | ce_geek: generally speaking most of what you are asking to do isn't done on the userland area, its generally burried in a kernel driver |
| 22:56.32 | prpplague | ce_geek: the os api shields you from the details |
| 22:56.41 | RobotGuy | OMG OMG OMG It is WORKING! I could not get it to work last night. |
| 22:56.47 | ce_geek | prpplague: looking for your /. Is it the VDO side or the GND side? |
| 22:56.49 | prpplague | ce_geek: so its doable from userland, just not something that is done often |
| 22:57.16 | prpplague | ce_geek: it should be on the VD0 side |
| 22:57.20 | prpplague | RobotGuy: hehe |
| 22:57.29 | ce_geek | prpplague: Understood. I'd say eventually I'd go do it in kernel world, but this seems like something simpler to deal with for the time being. |
| 22:57.46 | prpplague | ce_geek: yea |
| 22:57.59 | prpplague | ce_geek: the devmem2.c source is a good place to start |
| 22:58.00 | RobotGuy | ds2: Did you get it working with WPA? |
| 22:58.16 | prpplague | ce_geek: i'll see if i can find some time to do something in the morning with a simple led app |
| 22:58.20 | ce_geek | prpplague: Okay, I'll take a look at that. |
| 22:58.38 | ce_geek | prpplague: Sure, if you have time. No biggie. |
| 22:58.46 | RobotGuy | Eeek, now I have to document this on the Wiki. |
| 22:58.58 | prpplague | RobotGuy: don't do it until monday |
| 22:59.05 | prpplague | RobotGuy: the wiki hasn't been moved yet |
| 22:59.08 | ce_geek | prpplague: Damn, still looking for this /. What is it near? I guess it doesn't matter, I know which way the cable goes now, but looking for the / |
| 22:59.16 | RobotGuy | prpplague: Where is it moving? |
| 22:59.23 | prpplague | RobotGuy: to a new server |
| 22:59.25 | prpplague | ce_geek: one sec |
| 22:59.33 | RobotGuy | prpplague: Still on elinix? |
| 22:59.47 | prpplague | RobotGuy: yes, just different host |
| 22:59.52 | prpplague | ce_geek: http://www.tincantools.com/images/D/Hammer_01%20%28Large%29.JPG?1204239571291 |
| 23:00.19 | RobotGuy | I would have created my own Wiki, which I am actually in the process of doing. Forums, Wiki, and Blogs will be on thedynaplex.info soon. |
| 23:00.44 | RobotGuy | Now I have to ping my ISP so they get my .mobi domain working for secondary DNS. |
| 23:00.46 | prpplague | ce_geek: see in the pic the pin one of the jtag header is in the top right corner |
| 23:00.51 | ce_geek | prpplague: I see it now. I was looking at the carrier board. You said to look at the silk mask on the "carrier board" so I was thinking hammer carrier. |
| 23:01.00 | prpplague | ce_geek: sorry my bad |
| 23:01.02 | RobotGuy | There will be walter.thdynaplex.mobi soon. :D:D |
| 23:01.15 | prpplague | ce_geek: not sure that indicates too much coffee or not enough beer |
| 23:01.17 | ce_geek | prpplague: No problem. This makes sense now. Good good. |
| 23:01.24 | ce_geek | prpplague: One of the two, clearly :) |
| 23:01.36 | prpplague | indeed |
| 23:01.49 | RobotGuy | ds2: PING |
| 23:02.46 | prpplague | btw, we should have this availabe for use with the hammer soon - http://www.zcomax.com/embedded/XG-182M/dsxg182mv4.pdf |
| 23:04.15 | ce_geek | prpplague: I guess the reason I'm so stuck on this userland stuff is that I haven't done any kernel programming. And, as far as blinking LEDs, when I wrote PIC programs in C, it was like "RB0=1;", etc. Just, boom. There it is. |
| 23:04.44 | ce_geek | prpplague: Heh, a friend bit-banged an SPI interface to an SD card with a PIC. |
| 23:05.00 | prpplague | ce_geek: indeed, the thing is that the PIC wasn't running an OS,. the OS is intended to shield the user from hardware specifics |
| 23:05.25 | prpplague | ce_geek: doing a small kernel driver to blink a led is not difficult |
| 23:05.55 | prpplague | ce_geek: i'll see what i write up tomorrow for ya |
| 23:08.47 | prpplague | later folks |
| 23:11.52 | ds2 | RobotGuy: (sorry, at work)... yes |
| 23:12.18 | RobotGuy | ds2: What settings for WPA2? |
| 23:12.42 | RobotGuy | ds2: I have it configured for 128 bit WEP at present. |
| 23:13.47 | ds2 | let me dig it up |
| 23:13.49 | ds2 | one sec |
| 23:13.54 | RobotGuy | ds2: Cool. |
| 23:15.16 | SpeedEvil | There is no such thing as 128 bit WEP |
| 23:15.20 | RobotGuy | I don't know why I could not get this working last night, but no matter, it is working now and that is what is important. :D:D |
| 23:15.53 | RobotGuy | SpeedEvil: There is too 128 bit WEP because my adapter and router are configired for it. Maybe it is a proprietary extension. |
| 23:16.16 | ds2 | for the version I am using - |
| 23:16.24 | ds2 | iwpriv wlan0 set AuthMode=WPAPSK |
| 23:16.41 | ds2 | iwpriv wlan0 set WPAPSK=whateveryourkeyis |
| 23:16.51 | ds2 | iwpriv wlan0 set EncryptType=TKIP |
| 23:16.59 | RobotGuy | Ahhhh, that's what I did not try. Does it do AES at all? |
| 23:17.13 | ds2 | looks like it does |
| 23:17.23 | RobotGuy | ds2: I shall try it! |
| 23:17.25 | ds2 | there should be a iwpriv_usage.txt file in the tarball |
| 23:17.31 | ds2 | it is all documented in there |
| 23:18.05 | RobotGuy | ds2: I don't have that on my PC Linux. Installed from a .deb package. I will have to check /usr/share for docs. |
| 23:18.07 | *** join/#edev lyakh (n=lyakh@p57BD2EB6.dip0.t-ipconnect.de) |
| 23:18.07 | ds2 | ah I see |
| 23:18.29 | ds2 | seem to recall the new nextgen driver does it differently |
| 23:18.34 | RobotGuy | All this is going on the Wiki after it gets moved. |
| 23:18.41 | SpeedEvil | RobotGuy: the actual key is 104 bit s- http://en.wikipedia.org/wiki/WEP |
| 23:19.26 | ds2 | heh |
| 23:19.40 | RobotGuy | SpeedEvil: I do not care about that. I care about what is working now. Maybe Edimax has a proprietary extension to WEP. |
| 23:19.58 | RobotGuy | At least it says 128 bit WEP. |
| 23:20.22 | RobotGuy | Maybe it is really 104 bit, but it takes a 26 hex digit key. |
| 23:20.36 | ds2 | I think speedevil is hinting at a subtle detail.... the key is 128bit but only a a limited number of bits are really available/unique |
| 23:20.47 | SpeedEvil | 26*4=? |
| 23:20.55 | ds2 | it is the whole 56 vs 64 bit thing |
| 23:21.01 | RobotGuy | ds2: Well, I don't deal with subtlety. I deal with real live details. |
| 23:26.21 | ds2 | =) |
| 23:28.13 | RobotGuy | Wikipedia has not been known for its accuracy, but I will accept that info for now. |
| 23:32.26 | ce_geek | iwpriv? |
| 23:33.02 | RobotGuy | Yes. |
| 23:33.12 | ce_geek | is that like 'iwconfig'? |
| 23:33.30 | ce_geek | How does it work when you have a USB ethernet device? ifconfig? |
| 23:34.52 | RobotGuy | It's a combination of ifconfig, iwconfig, and iwpriv. The latter are in the wireless-tools package. |
| 23:35.25 | RobotGuy | There is also iwlist which you can do "iwlist rausb0 scanning" to search for access points. |
| 23:35.57 | RobotGuy | I can get a signal from the nearest police wifi node. |
| 23:36.12 | ce_geek | Yup! Familiar with that too. |
| 23:36.17 | RobotGuy | I am surprised they are only using WEP for security. |
| 23:37.17 | RobotGuy | When I get my other domain working, there will be walter.thedynaplex.mobi :D |
| 23:40.30 | ds2 | ce_geek: iwpriv allows setting/viewing of settings private to a wireless driver |
| 23:40.53 | ce_geek | ds2: ah |
| 23:44.02 | SpeedEvil | WEP is just fin e in some circumstances. |
| 23:44.10 | SpeedEvil | For example, if you're only using VPNs through it. |
| 23:51.04 | RobotGuy | Wow, I am hosting 12 websites now. :D |
| 23:57.56 | ce_geek | Grrrrr. Buildroot build script is broken, there's a new mpfr, and the old one has moved. http://www.mpfr.org/mpfr-current/ |
