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| 13:27.45 | prpplague | cbrake: ping |
| 13:27.57 | chouimat | mornng |
| 13:27.57 | cbrake | prpplague: hey |
| 13:28.05 | prpplague | chouimat: greetings |
| 13:29.00 | prpplague | cbrake: just some quick info, the BT section of the wi2wi module is pretty much a standard CSR BT core, works straight of the box with bluez drivers |
| 13:29.13 | cbrake | prpplague: wow, that is nice |
| 13:29.19 | prpplague | cbrake: the 8686 portion seems to work fine with the libertas driver |
| 13:32.36 | cbrake | prpplague: great. So which driver is working better for you at this point -- Marvell's or the OSS version? |
| 13:33.59 | prpplague | cbrake: we are still using the marvell driver at the momment for in house testing, however we will be moving to the libertas driver soon |
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| 14:19.29 | *** join/#edev CosmicPenguin (n=nobody@163.181.251.103) |
| 14:20.20 | prpplague | CosmicPenguin: greetings |
| 14:21.42 | CosmicPenguin | hello |
| 14:21.52 | prpplague | CosmicPenguin: whats cookin in amd land? |
| 14:22.10 | CosmicPenguin | Its only 8:30, and its already a crappy day |
| 14:22.17 | prpplague | CosmicPenguin: doh |
| 14:22.36 | chouimat | http://www.youtube.com/watch?v=1qiGyxPplAw |
| 14:22.52 | prpplague | CosmicPenguin: got about 5 proc entries to create |
| 14:23.53 | *** join/#edev gandhijee (n=user@mail.win-ent.com) |
| 14:24.16 | gandhijee | hey, you guys know of any C compilers for microcontrollers |
| 14:24.26 | Crofton|home | sdcc? |
| 14:24.36 | chouimat | gcc ? |
| 14:24.46 | prpplague | gandhijee: there is a whole series of open source compiliers for microcontrollers |
| 14:25.08 | prpplague | gandhijee: all based on gcc |
| 14:25.15 | prpplague | gandhijee: such as the avr-gcc |
| 14:25.28 | gandhijee | you know if there are any for the microchip microcontrollers? |
| 14:26.09 | Crofton | try sdcc |
| 14:26.44 | prpplague | http://sdcc.sourceforge.net/ |
| 14:28.18 | gandhijee | thanks guys |
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| 18:13.02 | prpplague | cbrake: well i got a wi2wi module graphed onto one of our handhelds |
| 18:13.09 | prpplague | cbrake: performance seems pretty good |
| 18:13.24 | cbrake | prpplague: neat! |
| 18:13.59 | prpplague | cbrake: the nice thing about the wi2wi module is that it also has the bluetooth |
| 18:14.14 | cbrake | prpplague: yeah, that saves a lot of hassle if you need it |
| 18:14.21 | prpplague | cbrake: shame the FIC guys decided to go with two seperate modules for bluetooth and wifi |
| 18:14.42 | cbrake | prpplague: nod |
| 18:14.47 | prpplague | cbrake: we are going to use the USB HCI for the interface |
| 18:14.56 | prpplague | cbrake: for the bluetooth that is |
| 18:15.11 | cbrake | prpplague: so the module exposes serial and USB for BT? |
| 18:15.29 | prpplague | cbrake: yea, serial, audio, and usb |
| 18:15.45 | prpplague | cbrake: as well as a few gpios |
| 18:16.00 | cbrake | prpplague: very nice -- so the wifi and BT are essentially separate -- just packaged on one module |
| 18:16.22 | prpplague | cbrake: looks that way |
| 18:16.32 | prpplague | cbrake: the bluetooth is a standard CSR |
| 18:16.51 | cbrake | prpplague: good |
| 18:16.53 | prpplague | cbrake: didn't even need to do anything for it other than turn on bluez |
| 18:17.06 | cbrake | prpplague: that is the way things should work :-) |
| 18:17.14 | prpplague | indeed |
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| 18:25.00 | prpplague | dijenerate: hey, whats cookin in barbados today? |
| 18:35.41 | prpplague | CosmicPenguin: wahoo |
| 18:35.51 | prpplague | CosmicPenguin: tincantools goes live at the end of the month |
| 18:36.52 | CosmicPenguin | nice |
| 18:38.37 | prpplague | CosmicPenguin: feel free to talk about the product with other embedded folks :P |
| 18:39.47 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 18:40.28 | CosmicPenguin | I can't talk about non-x86 projects |
| 18:40.30 | prpplague | hehe |
| 18:45.07 | ds2 | prpplague: is the host controller on the hammer OHCI/EHCI based or custom? (too lazy to look it up) |
| 18:46.50 | prpplague | ds2: its a pretty standard OHCI |
| 18:46.59 | ds2 | 'k thanks. |
| 18:47.18 | ds2 | #@$#!@!$#@#$@#!@ OMAP |
| 18:52.16 | gandhijee | any of you guys happen to know the formula to calculate how much power is needed to raise the temperate of a volume of air? |
| 18:53.07 | ds2 | specific heat of air * mass of the volume of air * temperature change gives you the amount of joules required |
| 18:53.27 | gandhijee | thanks |
| 18:53.43 | ds2 | power in watts is joules per second so divide the previous number out to get the time |
| 18:54.00 | prpplague | gandhijee: its called google |
| 18:54.12 | gandhijee | i keep getting stuff for water |
| 18:54.22 | gandhijee | i am a search retard |
| 18:58.56 | MothaWork | if you want power required, you need to know the power which will be removed from the area at the target temp |
| 18:59.05 | MothaWork | due to conduction/convection, etc. |
| 18:59.36 | MothaWork | if you want to just raise it up to that temp assuming no losses, it's not power, but rather energy (in Joules or BTU) reguired |
| 19:00.06 | gandhijee | i need to raise it from -40 Celsius to like -5 |
| 19:01.06 | MothaWork | but how much heat will be lost at -5 to ambient? |
| 19:01.12 | MothaWork | that depends on how well insulated the environment is |
| 19:01.57 | gandhijee | ambient is like -5 |
| 19:02.15 | gandhijee | nm |
| 19:02.23 | gandhijee | i want the ambient case temp to be -5 |
| 19:02.37 | gandhijee | the surrounding env is gonna be in the -40 range |
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| 19:04.42 | MothaWork | yeah |
| 19:05.05 | MothaWork | so you need to calculate how much power (heat) will be lost to the surrounding area when your case internals are at -5 |
| 19:05.13 | MothaWork | then that's how much power you need at steady state |
| 19:05.50 | ds2 | oh you were asking about heat sinks ;) |
| 19:05.58 | gandhijee | not really |
| 19:05.59 | MothaWork | however, thermal time constants tend to be long, so you may want to provide additional heat input then provide some sort of thermal monitoring to keep it at -5 once it gets there |
| 19:06.03 | ds2 | my eq. assumes a prefectly insulated env. |
| 19:06.23 | MothaWork | yeah, in which case the *power* required is zero :) |
| 19:06.29 | MothaWork | just need some energy to get it there, then it holds |
| 19:06.31 | gandhijee | this unit is going in some crazy ass place where its like -40 cel, we need to bring it up to around -5 before the actual PC can be powered on |
| 19:06.48 | ds2 | MothaWork: no, it would have to be non-zero for a specific amount of time to add the energy to change the temp ;) |
| 19:07.06 | gandhijee | after we hit -5 i can kill off the heating resistors and just let the machine run |
| 19:07.17 | ds2 | look up sp. heat of N2 @ RTP...should be a good starting figure since air is largely N2 |
| 19:07.24 | gandhijee | cool |
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| 19:09.33 | *** kick/#edev [Exiles!n=dave@mail.americanmicrosystems.com] by prpplague (prpplague) |
| 19:09.48 | ds2 | hahahahah |
| 19:10.01 | MothaWork | ds2: yes, but over "a long time", the limit is zero :) |
| 19:10.12 | prpplague | agaffney: he signed up for free hardware in exchange for documents |
| 19:10.13 | ds2 | MonthaWork: =) |
| 19:10.22 | prpplague | agaffney: he's not done a single line of text |
| 19:10.30 | agaffney | heh |
| 19:13.09 | ds2 | MonthaWork: not if he wants to continuously increase the temperature |
| 19:13.19 | ds2 | maybe it is an embedded Sun replica project ;) |
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| 19:30.56 | ds2 | nix what i said, it doesn't really make sense to do it that way for gases |
| 19:52.40 | gandhijee | then what method would you suggest |
| 19:53.23 | gandhijee | i might just say screw it and find a heater that has an acceptable output, then use that to figure out what type of resistance i need to get the same power dissipation |
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| 20:56.55 | agaffney | woot, sparkfun is sending me a replacement Roo232 and cable |
| 20:57.00 | agaffney | fast turn around |
| 20:57.09 | agaffney | they only got the bad part thursday |
| 20:57.35 | prpplague | agaffney: fun fun |
| 20:59.40 | agaffney | ewwwww |
| 20:59.53 | agaffney | I've got a 2K and XP install in vmware |
| 21:00.07 | agaffney | I just use the XP install to do the seamless rdp thing to run windows apps on my linux box |
| 21:00.07 | chouimat|busy | agaffney: I have to make sure the Qt4 app works on X11,mac and winblows |
| 21:00.15 | agaffney | mostly IE6 |
| 21:00.20 | prpplague | http://www.news.com/8301-10784_3-9801405-7.html |
| 21:00.38 | prpplague | looks like i'm not the only one questioning the kernel development cycle as of late |
| 21:00.38 | chouimat|busy | agaffney: the only 2k I have is an upgrade ... and I lost the nt4 cd |
| 21:01.27 | agaffney | chouimat|busy: I always use 2K over XP when I need a windows workstation for something |
| 21:01.50 | chouimat|busy | prpplague: *BSD development cycle seems to be more sane |
| 21:02.20 | prpplague | chouimat|busy: that's what i hear |
| 21:06.00 | ds2 | well, it is a gas |
| 21:06.31 | ds2 | I'd look the energy require to expand the gas since pressure is held constant |
| 21:06.59 | ds2 | chouimat: but that requires smoking various orangic substances ;) |
| 21:07.39 | chouimat|busy | ds2: I'm ok with this ;) |
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| 22:05.32 | prpplague | CosmicPenguin: ping |
| 22:06.20 | CosmicPenguin | hi |
| 22:07.37 | prpplague | CosmicPenguin: hey, mind if i ask a couple questions regarding how you do your taxes with your house? |
| 22:08.03 | prpplague | CosmicPenguin: iirc you can deduct you local property taxes as well as interested you paid on your mortage right? |
| 22:08.03 | CosmicPenguin | not at all |
| 22:08.07 | CosmicPenguin | yes |
| 22:08.29 | prpplague | CosmicPenguin: not all the local property taxes can be deducted? |
| 22:08.43 | CosmicPenguin | I dunno - it might differ from situation to situation |
| 22:08.47 | CosmicPenguin | we only have county taxes here |
| 22:09.10 | prpplague | yea we have county, and school taxes |
| 22:09.19 | prpplague | i think we also have a hospital tax |
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