| 00:01.52 | *** join/#edev brolin (n=brolin@nat78.udea.edu.co) |
| 01:30.05 | *** join/#edev CoR_ (n=quassel@202.36.179.65) |
| 01:31.30 | Mirell | Well, prpplague decided to ping and not bother to actually send any content. Oh well. |
| 01:31.33 | *** part/#edev Mirell (n=mirell@cpe-72-177-91-178.austin.res.rr.com) |
| 02:25.46 | *** join/#edev roxfan (n=dunno@206.223-240-81.adsl-dyn.isp.belgacom.be) |
| 03:19.33 | monkey_ | hey mir |
| 03:31.50 | *** join/#edev CoRfr (n=quassel@202.36.179.65) |
| 03:50.12 | *** join/#edev mbuf (n=mbuf@115.119.41.110) |
| 04:47.38 | *** join/#edev sizable (n=working_@pool-71-189-111-152.lsanca.fios.verizon.net) |
| 04:47.49 | *** join/#edev chiques (n=working_@pool-71-189-111-152.lsanca.fios.verizon.net) |
| 06:00.50 | *** join/#edev headrx (n=head@68-186-162-26.dhcp.smrt.tn.charter.com) |
| 06:03.52 | *** join/#edev HcE (i=egtvedt@egtvedt.no) |
| 06:12.50 | *** join/#edev lyakh (n=lyakh@p57BD1AE2.dip0.t-ipconnect.de) |
| 06:26.03 | *** join/#edev Redhatter (n=vk4msl@2001:388:f000:0:0:0:0:71) |
| 07:38.06 | *** join/#edev pingbat (n=pingbat@188-220-33-191.zone11.bethere.co.uk) |
| 08:07.44 | *** join/#edev JoeLlama (n=snork@206.169.63.10) |
| 08:43.33 | *** join/#edev CoRfr (n=quassel@111.69.243.135) |
| 08:47.30 | *** join/#edev florian (n=fuchs@port-217-146-132-69.static.qsc.de) |
| 09:04.04 | *** join/#edev flo_lap (n=fuchs@217.146.132.69) |
| 10:31.19 | *** join/#edev bsdfox_ (n=h36sa@c-71-197-73-68.hsd1.ca.comcast.net) |
| 10:31.40 | *** join/#edev tsjsieb (n=tsjsieb@dejongbeheer.nl) |
| 10:41.43 | *** join/#edev lyakh_ (n=lyakh@p57BD1CBC.dip0.t-ipconnect.de) |
| 10:49.19 | *** join/#edev linac (n=lin@116.205.53.135) |
| 11:00.48 | *** join/#edev pingbat (n=pingbat@188-220-33-191.zone11.bethere.co.uk) |
| 11:02.30 | *** join/#edev mbuf (n=mbuf@115.119.41.110) |
| 11:20.50 | *** join/#edev hw (n=hw@p578b3905.dip0.t-ipconnect.de) |
| 11:28.21 | *** join/#edev pirho (i=pirho@gateway/gpg-tor/key-0x2CEEC9CB) |
| 12:02.45 | *** join/#edev thulsa (n=thulsa@78.237.140.154) |
| 12:13.31 | *** join/#edev dieter__ (n=dieter@dslb-088-065-203-210.pools.arcor-ip.net) |
| 12:38.46 | *** join/#edev tasslehoff (n=Mich@84.49.231.147) |
| 12:52.08 | *** join/#edev gustavoz (n=gustavoz@imhotep.toptech.com.ar) |
| 12:59.39 | *** join/#edev eox425 (n=root@213.133.177.11) |
| 13:03.02 | *** join/#edev linac (n=lin@116.205.66.117) |
| 13:15.34 | *** join/#edev GPSFan (n=kenm@64.92.145.112) |
| 13:15.34 | *** mode/#edev [+o GPSFan] by ChanServ |
| 13:48.52 | *** mode/#edev [+o prpplague] by ChanServ |
| 14:01.55 | *** join/#edev kergoth (n=kergoth@ip24-251-170-95.ph.ph.cox.net) |
| 14:02.34 | chouimat | morning |
| 14:11.40 | thulsa | morning ? it's 16h11 man ! |
| 14:26.48 | *** join/#edev CosmicPenguin (n=nobody@66.162.99.237) |
| 14:27.16 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 14:31.59 | prpplague | ~seen Mirell |
| 14:32.03 | purl | mirell is currently on #uclibc (15h 14m 1s). Has said a total of 172 messages. Is idling for 13h 33s, last said: 'Well, prpplague decided to ping and not bother to actually send any content. Oh well.'. |
| 14:32.14 | prpplague | hehe |
| 14:38.29 | chouimat | prpplague: hi |
| 14:39.22 | prpplague | chouimat: greetings |
| 14:43.06 | *** join/#edev Mirell (n=mirell@cpe-72-177-91-178.austin.res.rr.com) |
| 14:43.06 | *** mode/#edev [+o Mirell] by ChanServ |
| 14:43.39 | prpplague | Mirell: greetings |
| 14:46.00 | Mirell | 'lo |
| 14:49.03 | *** join/#edev pirho_ (i=pirho@gateway/gpg-tor/key-0x2CEEC9CB) |
| 15:06.56 | *** join/#edev lyakh_ (n=lyakh@p57BD0DE3.dip0.t-ipconnect.de) |
| 15:10.04 | CosmicPenguin | Wow, I am addicted to git-grep |
| 15:10.05 | CosmicPenguin | svn succks |
| 15:16.37 | joe_bleau | I still use CVS. |
| 15:26.17 | Mirell | That's crazy talk |
| 15:30.07 | prpplague | still uses CVS |
| 15:34.25 | solar | next comes the battle of who has the best editor/distro/god |
| 15:35.13 | Mirell | *shudder* |
| 15:35.15 | CosmicPenguin | also, email client |
| 15:37.53 | CosmicPenguin | And language, because I have some choice works about C++ this morningt |
| 15:46.15 | *** join/#edev mbuf (n=mbuf@122.169.151.204) |
| 15:56.22 | *** join/#edev adyer (n=adyer@173-15-79-94-Illinois.hfc.comcastbusiness.net) |
| 16:12.24 | *** join/#edev T0mW (n=Tom@24.238.37.43.res-cmts.tv13.ptd.net) |
| 16:24.48 | *** join/#edev pingbat (n=pingbat@188-220-33-191.zone11.bethere.co.uk) |
| 17:00.52 | *** join/#edev mbuf (n=mbuf@122.169.148.100) |
| 17:06.10 | *** join/#edev VK4MSL (n=vk4msl@gentoo/developer/redhatter) |
| 17:10.27 | *** join/#edev SpeedEvil (i=1000@tor/regular/SpeedEvil) |
| 17:12.07 | *** join/#edev eox425 (n=root@213.133.177.11) |
| 17:21.52 | *** join/#edev mbuf (n=mbuf@122.169.134.241) |
| 17:50.05 | m4t | http://www.windowsfordevices.com/images/stories/marvell_armada510_devkit.jpg |
| 18:05.23 | roxfan | looks cute |
| 18:06.33 | roxfan | lotsa 88 chips |
| 18:12.22 | calculus | prpplague: is www.robotcraft.ca a reseller for tct?, I saw that they are selling a zippy board |
| 18:12.33 | prpplague | yea |
| 18:30.23 | *** join/#edev mbuf (n=mbuf@122.169.134.241) |
| 18:32.00 | *** join/#edev adyer1 (n=adyer@173-15-79-94-Illinois.hfc.comcastbusiness.net) |
| 18:41.19 | *** join/#edev florian (n=fuchs@f049137150.adsl.alicedsl.de) |
| 18:41.38 | *** join/#edev bsdfox_ (n=h36sa@c-71-197-73-68.hsd1.ca.comcast.net) |
| 19:25.39 | mnemoc | why does the zippy say (C) TCT? sold the design? |
| 19:43.27 | *** join/#edev adyer (n=adyer@173-15-79-94-Illinois.hfc.comcastbusiness.net) |
| 19:52.37 | *** join/#edev eox425 (n=root@213.133.177.11) |
| 19:55.31 | prpplague | mnemoc: what? |
| 19:57.09 | mnemoc | prpplague: i would have expected to see the name of your company written in the PCB... not TCT |
| 19:57.12 | *** join/#edev adyer1 (n=adyer@173-15-79-94-Illinois.hfc.comcastbusiness.net) |
| 19:57.40 | prpplague | mnemoc: i got paid for the design, not for selling it |
| 19:58.28 | prpplague | mnemoc: TCT does the retail sales and marketing |
| 19:58.37 | mnemoc | ic... i had the idea that the zippy was yours and only sold via TCT |
| 20:00.38 | prpplague | mnemoc: no, tct paid me to do the design, TCT owns it now |
| 20:01.05 | mnemoc | got it :) |
| 20:01.22 | pingbat | are there any good ways of modularising peripherals and putting them on separate boards? |
| 20:01.48 | prpplague | pingbat: tons of different ways, it all depends on what your goal is |
| 20:02.16 | pingbat | well, i am designing a development board for my school |
| 20:02.24 | pingbat | (of engineering) |
| 20:02.34 | prpplague | pingbat: 0.1" headers are best for that kind of stuff |
| 20:03.00 | pingbat | the idea is to have a core that can be expanded into a fully fledged system |
| 20:03.34 | pingbat | the problem with the headers is that they limit the flexibility of the thing |
| 20:03.51 | *** join/#edev cizra (n=cizra@bilbo.tud.ttu.ee) |
| 20:04.21 | SpeedEvil | Basically, modularisation sucks in many ways. |
| 20:04.47 | SpeedEvil | You have many seperate interrelated costs. The raw cost of the connector, the extra space it takes, the unreliability it introduces. |
| 20:05.23 | adyer1 | pingbat: you also need to consider power for things like motor drivers, signal integrity for fast stuff like pci express, the connector flakiness factor (how many insertions, vibration, etc) |
| 20:05.42 | SpeedEvil | The difficulty it adds to fixing into a case - to be able to slide modules in safely and lock them in place - the extra packaging needed round a module to make it safe to handle - the signal integrity problems of the connector |
| 20:06.10 | SpeedEvil | The fact that you have to pick a module size, that's either going to be too big or too small - which really hurts badly in space constrained apps. |
| 20:06.31 | pingbat | and hence i am pulling my hair out |
| 20:06.34 | SpeedEvil | non-modularity has costs of its own too of course. |
| 20:07.13 | adyer1 | hair, what is this hair you speak of? :-) |
| 20:07.23 | pingbat | i have thought of creating a couple of pcb layouts and then having some kind of script to combine them |
| 20:07.37 | SpeedEvil | There is unfortunately no nice simple solution. It gets especially bad if you want to extend address or data busses at high speeds across boards. |
| 20:07.46 | pingbat | so the end user could pick a few peripherals |
| 20:08.04 | SpeedEvil | If you can live with I2C/SPI or some other low-pin-count bus, it gets not _too_ bad. |
| 20:08.55 | adyer1 | lol, until someone confuses sda and scl.... |
| 20:09.56 | pingbat | oops |
| 20:09.56 | bsdfox_ | you're in here SpeedEvil? |
| 20:10.37 | SpeedEvil | bsdfox_: Occasionally, I forgot anbout here for a whiule as I diddn't have it on my autojoin list. |
| 20:10.51 | SpeedEvil | Then I saw a slashdot story that reminded me of prpplague. |
| 20:11.03 | prpplague | oh? |
| 20:11.11 | pingbat | also, if i want some programmable instrumentation op-amps, am i better off getting an integrated chip? |
| 20:11.46 | pingbat | or just stick a couple together with some digital pots |
| 20:12.02 | SpeedEvil | http://yro.slashdot.org/story/09/10/20/0026243/Apple-Others-Hit-With-Lawsuit-On-Ethernet-Patents |
| 20:12.55 | pingbat | and has anyone ever used Power Over Ethernet? |
| 20:13.11 | adyer1 | pingbat - i've done the device side |
| 20:13.41 | pingbat | is it relatively easy? did you encounter any problems? |
| 20:14.45 | pingbat | there's a dude on tv called Dr Stephen Gentleman |
| 20:14.48 | pingbat | hehe |
| 20:15.39 | adyer1 | pingbat: with a dedicated poe chip it was fairly easy. remember that the setup is geared to provide -48V, so it's good to do the full isolation, which means sourcing a transformer which can be a PITA |
| 20:15.42 | SpeedEvil | had an email from Edmund Whiffen. |
| 20:16.37 | pingbat | PITA? |
| 20:17.02 | adyer1 | pingbat: pain in the *ss - also you need ethernet magnetics rated for poe |
| 20:18.04 | SpeedEvil | adyer1: can't they all do +-48v? |
| 20:18.04 | SpeedEvil | adyer1: or is it something else |
| 20:18.04 | pingbat | and can you send it through a regular patch box? |
| 20:18.29 | *** join/#edev eox425 (n=root@213.133.177.11) |
| 20:20.31 | adyer1 | pingbat: yes, IIRC it's pretty much sending 48VAC over the pairs. If I remember there are two ways you can hook it up, either using the spare pairs in the cable (which noone does) or the data pairs. |
| 20:22.53 | adyer1 | SpeedEvil: normally the 'high' side is at "ground", so your unit 'ground' will be at a minus voltage which can catch you unawares if you don't isolate the two. If you isolate there's no prob. |
| 20:24.59 | *** join/#edev Ian_Daniher (n=it@nat-pool-128-88.olin.edu) |
| 20:25.33 | SpeedEvil | ah |
| 20:25.53 | *** join/#edev flavioribeiro (n=flavio@187.64.48.135) |
| 20:26.45 | pingbat | it's DC |
| 20:26.53 | pingbat | 48VDC |
| 20:27.43 | adyer1 | pingbat: it's been a while. I remembered the diode bridges, but now I recall that was for polarity reversal :-) |
| 20:28.05 | pingbat | :-) i was just commenting :-P |
| 20:28.14 | pingbat | too many smilies |
| 20:29.20 | pingbat | it would be great for the labs |
| 20:29.54 | pingbat | power a datalogger and have it send values |
| 20:30.34 | adyer1 | I just dug up the schematic, we used a TPS23750 from TI |
| 20:31.55 | adyer1 | pretty much followed the app note |
| 20:32.03 | pingbat | thanks |
| 20:37.06 | pingbat | what was the output voltage? |
| 20:37.15 | pingbat | 5? |
| 20:37.18 | pingbat | 5V |
| 20:38.59 | pingbat | ohh, my bad |
| 20:39.02 | pingbat | sorry |
| 20:45.27 | *** join/#edev gustavoz (n=gustavoz@loki.toptech.com.ar) |
| 20:55.46 | calculus | I have seen some poe solutions where the power runs over the empty pairs and then is split out into the barrel plug on the computer side with ethernet in the port and power through the normal power port |
| 20:57.16 | pingbat | anyone know anything about the range of this? |
| 20:57.48 | adyer1 | I seem to remember it's the device that has to accept power on either set of pairs (used or unused) and the power equipment (switch or injector) gets to choose which to implement. |
| 20:58.58 | adyer1 | pingbat: I think it was the same distance spec as 100BaseT |
| 20:59.07 | pingbat | that's awesome |
| 20:59.30 | pingbat | yup, just found it |
| 20:59.32 | pingbat | 100m |
| 21:00.26 | pingbat | same as the Cat5 spec |
| 21:00.31 | *** join/#edev pirho (i=pirho@gateway/gpg-tor/key-0x2CEEC9CB) |
| 21:01.44 | calculus | here is the splitter thing: http://andahammer.com/poeispair/ |
| 21:02.14 | pingbat | 70 Watt? |
| 21:03.03 | pingbat | i think the max is 12Watt at device input |
| 21:15.49 | pingbat | farnell bought cadsoft? |
| 21:40.54 | pingbat | what is a good way to get an lcd working? |
| 21:41.05 | pingbat | do most of them come with controller chips? |
| 22:18.38 | *** join/#edev brolin (n=brolin@201.232.107.129) |
| 22:25.39 | *** part/#edev adyer1 (n=adyer@173-15-79-94-Illinois.hfc.comcastbusiness.net) |
| 22:50.23 | *** join/#edev dieter_ (n=dieter@dslb-088-066-193-130.pools.arcor-ip.net) |
| 23:44.38 | *** join/#edev purl (i=ibot@rikers.org) |
| 23:44.38 | *** topic/#edev is a channel for the discussion of embedded systems,including hardware, software, linux, wince, and commercial device repurposing - Please refrain from active solicitation of work/contracts in channel |
