| 00:00.07 | agaffney | ok, what is #tincantools and why am I on the access list? :P |
| 00:00.15 | agaffney | I'd ask RobotGuy directly, but he's gone :P |
| 00:21.57 | ds2 | that should be the stuff for the hammer |
| 00:23.15 | landley | Robotguy set that up earlier today. |
| 00:23.29 | landley | Not sure why. |
| 00:25.04 | landley | agaffney: from earlier today |
| 00:25.10 | landley | [14:54] * RobotGuy just created #tincantools and set it up as much like here as possible. |
| 00:25.11 | landley | [14:55] <RobotGuy> For focused discussions of any of TinCanTools embedded products or projects. |
| 00:25.11 | landley | [14:56] <RobotGuy> prpplague: You have maximum access to #tincantools now. |
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| 13:35.59 | prpplague | GPSFan: greetings crack baby |
| 13:37.19 | GPSFan | prpplague: hey dude, what's cookin? |
| 13:37.35 | prpplague | GPSFan: ssdd |
| 13:37.42 | prpplague | GPSFan: engineering meeting this morning |
| 13:37.51 | prpplague | GPSFan: then more s3c2440 bringup |
| 13:37.52 | chouimat|work | morning |
| 13:37.57 | prpplague | chouimat|away: |
| 13:38.02 | prpplague | chouimat|work: greetings |
| 13:38.08 | chouimat|work | prpplague: close enough ;) |
| 13:38.23 | GPSFan | prpplague: is there any thought of a hammer like 2440 based device? |
| 13:40.32 | prpplague | GPSFan: there has been some thought on it |
| 13:40.42 | prpplague | GPSFan: but currently the sales of the hammer don't warrant it |
| 13:41.25 | GPSFan | prpplague: understood. |
| 13:41.43 | prpplague | GPSFan: we had expect the sales to pick up more as people were purchasing hobby stuff after xmas |
| 13:41.51 | prpplague | GPSFan: but the rate has been pretty steady |
| 13:41.55 | prpplague | GPSFan: no major change |
| 13:42.18 | GPSFan | prpplague: you need a "killer-app (tm)" |
| 13:42.26 | prpplague | GPSFan: indeed |
| 13:43.16 | prpplague | GPSFan: problem is that killer-apps aren't my cup of tea |
| 13:43.50 | GPSFan | prpplague: they sort of just happen from the most unlikely places.... if at all. |
| 13:45.47 | prpplague | yea |
| 13:46.37 | prpplague | wahoo engineering meeting canceld |
| 13:47.00 | prpplague | and if anyone cares, battlestar galactica 1980 is now available on dvd |
| 13:47.30 | prpplague | will soon watch "the return of starbuck" for the first time since 1981 |
| 13:47.47 | chouimat|work | :( |
| 13:48.05 | prpplague | chouimat|work: ?? |
| 13:48.11 | chouimat|work | oops |
| 13:48.15 | chouimat|work | wrong window |
| 13:48.51 | prpplague | ~lart chouimat|work |
| 13:48.51 | purl | whips out a shotgun, trudges over to chouimat|work, and goes postal |
| 13:49.15 | prpplague | http://www.amazon.com/Battlestar-Galactica-1980-Complete-Epic/dp/B000W4KT9G/ref=pd_bbs_sr_1?ie=UTF8&s=dvd&qid=1206020916&sr=8-1 |
| 13:49.18 | chouimat|work | prpplague: problem with a QA drone |
| 13:49.26 | prpplague | chouimat|work: oh |
| 13:50.06 | chouimat|work | prpplague: when I use the software it work on any device but not for him so he kept reopening the stupid bug |
| 13:50.29 | prpplague | chouimat|work: fun fun |
| 13:51.08 | chouimat|work | the first day it was fun but not after 3 weeks |
| 13:59.10 | chouimat|work | prpplague: http://blog.wired.com/underwire/2008/03/last-night-the.html |
| 14:32.07 | prpplague | chouimat|work: yea, i'm not a giant fan of the new series |
| 14:32.17 | prpplague | chouimat|work: i missed one of the seasons |
| 14:33.55 | chouimat|work | prpplague: I like it more than the original ... much darker |
| 14:34.25 | prpplague | chouimat|work: indeed |
| 14:34.57 | prpplague | chouimat|work: the original aired when there was alot of things going on in the world, and an optomistic tv show was kinda the standard |
| 14:35.17 | chouimat|work | prpplague: yeah |
| 14:47.12 | prpplague | chouimat|work: i've been wanting to see the BG-1980 for 20+ years |
| 14:47.36 | prpplague | chouimat|work: it was available only as a limited amount on VHS back in 1992 |
| 14:47.37 | chouimat|work | prpplague: I saw it a few times in the last 2 years on TV |
| 14:47.47 | prpplague | chouimat|work: 1980? |
| 14:47.50 | chouimat|work | yes |
| 14:48.08 | prpplague | chouimat|work: are you certain of that? it's been in copyright hell for years |
| 14:48.27 | prpplague | chouimat|work: are you sure it wasn't the original series? |
| 14:48.42 | chouimat|work | yes I'm certain I taped it but it was on a canadian cable channel |
| 14:49.22 | prpplague | chouimat|work: just to make sure, this is the series where the battlestar galactica find earth |
| 14:50.01 | chouimat|work | yes and the last episode iirc is the one where starbuck is stuck on a barren planet with a cylon |
| 14:50.10 | prpplague | chouimat|work: yea thats the one |
| 14:50.16 | prpplague | chouimat|work: very interesting |
| 14:50.52 | prpplague | chouimat|work: it has been reported that the series was in a copyright issue with some of the original producers for over 20 years |
| 14:51.00 | chouimat|work | prpplague: and I might have a few chances to watch space 1999 again in the next few months |
| 14:51.06 | prpplague | chouimat|work: i'm really surprised they were able to play it on tv |
| 14:51.20 | prpplague | chouimat|work: holy cow, you guys get good tv |
| 14:51.34 | chouimat|work | prpplague: I know :) |
| 14:51.44 | prpplague | points to the "american idiot" and "dancing with the morons" |
| 14:52.03 | chouimat|work | prpplague: I also watched (6 years ago iirc, and it was in french) the prisoner |
| 14:52.10 | prpplague | oh nice |
| 14:52.21 | prpplague | i've been dying to purchase black7 on dvd |
| 14:52.26 | prpplague | but its very expensive |
| 14:52.28 | prpplague | black |
| 14:52.30 | prpplague | arg |
| 14:52.33 | prpplague | blake7 |
| 14:53.20 | prpplague | http://www.amazon.com/Blakes-Complete-Collection-20-disc-Region/dp/B000UEZPC4/ref=pd_bbs_1?ie=UTF8&s=dvd&qid=1206024772&sr=8-1 |
| 14:55.07 | chouimat|work | prpplague: I'm planning to go buy the complete 10 seasons of SG-1 and it will cost me a lot too |
| 14:56.42 | prpplague | yea i notice the new 2 hour movie is now available |
| 14:56.54 | chouimat|work | prpplague: it's good |
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| 17:02.49 | Mirell | I still need to finish Season 10 |
| 17:03.41 | agaffney | the last episode *sucks* |
| 17:03.48 | agaffney | the movie was "okay" |
| 17:03.58 | Mirell | I just kind of got bored with it. |
| 17:04.10 | Mirell | I think the last episode I saw was with Jack and Daniel. |
| 17:04.13 | agaffney | it wasn't bad, but the random plot elements tossed in kinda ruined it for me |
| 17:04.39 | agaffney | I *really* hope RDA is in the 2nd SG-1 movie |
| 17:04.50 | agaffney | I was quite disappointed that he wasn't in Ark of Truth |
| 17:04.55 | agaffney | he really made the show |
| 17:05.09 | Mirell | Indeed |
| 17:05.17 | agaffney | the whole Far-gate thing doesn't really do it for me |
| 17:05.36 | Mirell | "You ended your sentence with a preposition...BASTARD" |
| 17:05.41 | agaffney | heh |
| 17:06.03 | agaffney | although, I have to say that I *really* enjoyed ep. 200 |
| 17:06.17 | Mirell | HEhe |
| 17:06.21 | agaffney | especially the bit where they made fun of Farscape and had all the characters switched around |
| 17:06.36 | Mirell | A lot of people loved that |
| 17:06.41 | agaffney | but my all-time favorite SG-1 episode is Window of Opportunity |
| 17:06.44 | agaffney | just saw it again the other day |
| 17:06.54 | Mirell | Which one is that again? |
| 17:07.01 | agaffney | the time loop episode |
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| 17:07.10 | agaffney | "Sir! In the middle of my backswing?!" |
| 17:07.50 | Mirell | Oh yes! |
| 17:07.50 | Mirell | That is a marvelous one. |
| 17:07.50 | agaffney | it's the one where Jack and Teal'c keep repeating the same day over and over again |
| 17:08.00 | agaffney | absolutely brilliant |
| 17:08.10 | agaffney | I could watch that one over and over |
| 17:08.20 | Mirell | I just loved when Jack just dumbfounded Daniel when he knew whatever ancient language fluently. |
| 17:08.46 | Mirell | And when Teal'c just punched the guy. |
| 17:09.20 | agaffney | I just wish they told us what question Daniel was asking Jack |
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| 17:38.27 | SpeedEvil | Groundhog day. |
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| 17:48.22 | agaffney | SpeedEvil: basically, but it was that movie done right :P |
| 17:48.39 | agaffney | "Okay, bad example" |
| 17:48.53 | agaffney | that episode has so many good quotes |
| 17:51.11 | ds2 | prpplague: if you are around... do you know if the hammer and the unreleased version w/power management support is pin compatable? |
| 17:51.28 | prpplague | ds2: no, they are not pin compatible |
| 17:51.39 | ds2 | at they even close??? |
| 17:52.33 | ds2 | your link about the Eye-Fi yesterday inspired some ideas for a project but for me to actually do it, I need to make sure it is doable within a weekend |
| 17:52.37 | prpplague | ds2: very close |
| 17:53.01 | RobotGuy | Eye-Fi? |
| 17:53.08 | ds2 | prpplague: how much work would it be if I made a board and a socket for hammer now and then rework it for the power management stuff later on? |
| 17:53.59 | prpplague | ds2: the pins that aren't a match are the two ADC's, +5v in, and +3.3V out |
| 17:54.24 | ds2 | prpplague: ah.. I can deal with that |
| 17:54.26 | prpplague | ds2: everything else currently is the same |
| 17:54.42 | prpplague | RobotGuy: and ar6k sdio card |
| 17:54.56 | prpplague | ds2: you do realize the hammer does not have sdio |
| 17:55.07 | RobotGuy | Oh, OK. Not something I can use. |
| 17:55.14 | ds2 | not quite, the Eye-Fi is a card that pretends to be a SD card and can upload stuff via WiFi |
| 17:55.36 | prpplague | ds2: ?? |
| 17:55.43 | ds2 | prpplague: yes; I am thinking of brute forcing it - add a USB card reader |
| 17:55.47 | RobotGuy | I don't want to just upload stuff though. I need full WiFi |
| 17:55.58 | prpplague | RobotGuy: different stuff |
| 17:56.03 | ds2 | EyeFi is design to go into a camera and automatically upload photos so it uses SD, not SDIO |
| 17:56.05 | RobotGuy | I have a USB card reader here somewhere. |
| 17:56.39 | RobotGuy | Oh, I understand now. |
| 17:56.39 | prpplague | ds2: ok, let me rephrase, the hammer can only access sd/mmc cards via the SPI interface |
| 17:56.58 | ds2 | prpplague: the hammer has an SD slot? I need to look at it again then |
| 17:57.22 | prpplague | ds2: the hammer eval board has a sd/mmc slot but is accessed via SPI |
| 17:57.26 | RobotGuy | digs out the data sheet for the S3C2410 to see if it is capable of full SDIO. |
| 17:57.47 | prpplague | ds2: although SPI interface for sd/mmc is suppose to be a requirement many companies do not implement it |
| 17:58.02 | prpplague | RobotGuy: yes the S3C2410 is capable of sdio |
| 17:58.06 | prpplague | RobotGuy: but the hammer is now |
| 17:58.08 | prpplague | not |
| 17:58.15 | ds2 | prpplague: I see. |
| 17:58.23 | RobotGuy | Will Sledge be able to? |
| 17:58.35 | prpplague | yes |
| 17:58.49 | RobotGuy | Cool |
| 17:58.55 | prpplague | if it ever goes to production |
| 17:59.28 | ds2 | prpplague: this is what I am thinking of -- something like this but with the hard drive/media accessible over bluetooth but it can copy files between the slots by itself: http://www.dealextreme.com/details.dx/sku.10484 |
| 18:00.41 | ds2 | the gumstix was my first choice since I know they have a full SDIO slot but none of them offer SDIO + BT so if I am going to do work, I might as do it on 0.1" centers |
| 18:04.28 | prpplague | looks |
| 18:05.10 | prpplague | ds2: thats doable with the hammer |
| 18:05.32 | prpplague | ds2: if you use a usb card reader along with a usb bluetooth dongle |
| 18:06.54 | prpplague | ds2: one sec |
| 18:09.25 | RobotGuy | I din't think my USB Bluetooth adapter is supported by kernel 2.6.22, but it works under 2.6.23 |
| 18:09.53 | RobotGuy | Seems like everything I want to do hinges on kernel 2.6.24. |
| 18:12.37 | prpplague | ds2: http://www.geeks.com/details.asp?invtid=PA18-32124&cat=CAM |
| 18:12.44 | prpplague | ds2: take that along with a nail board |
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| 18:42.12 | ds2 | (sorry, got dragged off to a mtg) |
| 18:42.21 | ds2 | use that LCD you mean? |
| 18:43.01 | RobotGuy | Wouldn't it be possible to make something like a Gumstix using an S3C244x? |
| 18:43.48 | ds2 | sure just find enough sales to justify the engineering costs |
| 18:43.51 | RobotGuy | It would not be XScale, which could be a good thing. |
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| 18:45.08 | ds2 | biggestproblem I see with teh gumstix is the connector... it just isn't easy to do a quick and dirty protos unless they happen to make the board with the right combo of things |
| 18:46.40 | RobotGuy | Yes, I know, and it sure isn't solderless breadboard friendly. |
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| 18:47.25 | ds2 | if prpplague meant use that LCD, I am more thinking of using those I2C Nokia LCDs |
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| 18:59.10 | prpplague | RobotGuy: we already have a version of the hammer with s3c2440 |
| 18:59.51 | prpplague | ds2: no i was meaning using it as is |
| 19:00.02 | prpplague | ds2: just match it up with the nail board |
| 19:02.49 | RobotGuy | I would just like an expandable memory bus, full SDIO, full color LCD interface, USB Client and Host ports, the latest kernel (as an option), and I2S for sound, on a solderless breadboard module, for under $200.00. Is that asking too much? ;) |
| 19:02.58 | RobotGuy | prpplague: There is such a thing? |
| 19:03.30 | landley | The latest kernel I'm working on. :) |
| 19:03.33 | landley | He needs to send me patches. |
| 19:03.43 | landley | USB client and host ports, nail has. |
| 19:03.47 | SpeedEvil | USB2 too |
| 19:03.51 | landley | LCD interface he's adding via the expansion ports. |
| 19:03.53 | prpplague | RobotGuy: latest kernel is nothing major |
| 19:04.04 | RobotGuy | prpplague: It is for me. |
| 19:04.05 | prpplague | RobotGuy: the hammer supports color lcd |
| 19:04.08 | landley | Alas, USB2 involves using a different core chip. (Good idea for next version, armv5l with 3D acceleration would be nice... :) |
| 19:04.17 | SpeedEvil | 4D! |
| 19:04.22 | RobotGuy | prpplague: I know, with limited color. :) |
| 19:04.26 | SpeedEvil | Gotta keep room for expansion. |
| 19:04.32 | SpeedEvil | More practically though. |
| 19:04.36 | prpplague | RobotGuy: you need to qualify then |
| 19:04.48 | landley | The memory can apparently be swapped out at build time, up to 256 megs. |
| 19:04.49 | SpeedEvil | SDIO and proper PM, and more RAM |
| 19:04.52 | prpplague | RobotGuy: is there a specific reason you need i2s? |
| 19:05.05 | landley | I don't know what sdio is, nor i2s. |
| 19:05.11 | RobotGuy | prpplague: Robots must have the ability to annoy Humans. :) |
| 19:05.18 | SpeedEvil | SDIO is what you use to talk fast to SD cards |
| 19:05.21 | prpplague | RobotGuy: you can do audio now with the pwm |
| 19:05.28 | RobotGuy | I2S is an interface for sound. |
| 19:05.32 | prpplague | RobotGuy: 22khz with no problems |
| 19:05.38 | landley | So in theory, _any_ interface for sound is good enough. |
| 19:06.00 | SpeedEvil | landley: to get reasonable (>1M or so ) transfer speed to SD cards. (or SD wifi stuff, but that's rarer) |
| 19:06.01 | landley | You need sound and vivdeo. |
| 19:06.04 | ds2 | prpplague: I don't think the LCD on those things will work if the USB port is active |
| 19:06.05 | RobotGuy | landley: I want to annoy Humans in 3D 5.1 THX though. <ducks and runs> |
| 19:06.25 | prpplague | RobotGuy: uh, you are kidding right? |
| 19:06.35 | ds2 | I2S is not just sound |
| 19:06.38 | SpeedEvil | ds2: from the core SoC point of view, the USB pins are dedicated. |
| 19:06.42 | RobotGuy | prpplague: Yes, about the THX. :) |
| 19:06.51 | SpeedEvil | ds2: IIRC |
| 19:07.05 | ds2 | SpeedEvil: so you have looked at that device prpplague pointed out? |
| 19:07.15 | SpeedEvil | no - I was referring to the hammer |
| 19:07.21 | SpeedEvil | <PROTECTED> |
| 19:07.21 | RobotGuy | prpplague: What do you have that has the S3C2440? |
| 19:07.44 | ds2 | RobotGuy: the Beagle board is suppose to give you most of that if really does come out |
| 19:08.00 | RobotGuy | Beagle? Hmmm, link? |
| 19:08.04 | prpplague | one sec phone |
| 19:08.07 | ds2 | www.beagleboard.org |
| 19:09.02 | prpplague | RobotGuy: we have a hammer board with s3c2440 |
| 19:09.11 | RobotGuy | I kind of like the Samsung chips though, or the Freescale i.whatever chips. |
| 19:09.26 | RobotGuy | prpplague: Ooooooooooooooooooh, shiny. How much memory and flash? |
| 19:09.32 | ds2 | prpplague: is there a reason I should not clip off the jtag pins on the hammer for a reduce Z height? |
| 19:09.45 | SpeedEvil | ds2: not really |
| 19:09.51 | prpplague | RobotGuy: so anyway, you can do audio with the hammer, you can do color lcd with the hammer, what do you need an expansion memory bus for? |
| 19:09.56 | ds2 | so nothing shock sensitive |
| 19:10.07 | SpeedEvil | ds2: just don't use a too violent cuter, otherwise you might break teh crystal in theory |
| 19:10.15 | RobotGuy | ds2: You lose ability to reflash if you brick it unless you wire the pins to an offboard connector. |
| 19:10.17 | prpplague | RobotGuy: the proto i have has 128/128 |
| 19:10.29 | prpplague | ds2: no reason you can't |
| 19:10.34 | ds2 | RobotGuy: that's fine, I can run wires out if needed |
| 19:10.42 | SpeedEvil | RobotGuy: you could ust make a pin-jig, and desolder the pins |
| 19:10.43 | RobotGuy | prpplague: Some of the stuff I want to do looks like it could overflow Hammer's memory. |
| 19:10.44 | ds2 | but I don't plan on bricking things ;) |
| 19:10.45 | prpplague | ds2: several of mine i have desoldered the jtag and have a flex connector come out |
| 19:10.49 | SpeedEvil | using spring connectors |
| 19:11.04 | ds2 | prpplague: I thought we talked about desoldering the jtag and came to the conclusion it isn't a good idea? |
| 19:11.12 | prpplague | RobotGuy: but you haven't the resources to add more sdram or flash |
| 19:11.27 | ds2 | right now, the only drawback I can see on the hammer is it is not uboot based |
| 19:11.33 | prpplague | ds2: as part of our production it is not |
| 19:11.40 | ds2 | oh lucky you :P |
| 19:11.51 | prpplague | ds2: how is that a drawback? uboot sucks |
| 19:11.55 | ds2 | I would prefer my boards that way and solder them on if and only if I need them |
| 19:12.09 | ds2 | prpplague: cuz I know how to get uboot to do what I want! |
| 19:12.26 | ds2 | I want to do the project in a single weekend and learning another boot loader is not going help me acheive that goal |
| 19:12.34 | prpplague | ds2: what can you _not_ do with apex? |
| 19:12.38 | SpeedEvil | ds2: unsolder then se something like this |
| 19:12.43 | SpeedEvil | http://cgi.ebay.co.uk/5-off-P50-45-Spear-Point-80g-Spring-Test-Pin-Probe_W0QQitemZ250157304559QQihZ015QQcategoryZ25414QQrdZ1QQssPageNameZWD1VQQ_trksidZp1638.m118.l1247QQcmdZViewItem |
| 19:12.55 | prpplague | ds2: apex is a thousand times easier than uboot |
| 19:12.58 | ds2 | prpplague: it isn't what i can or cannot do... it is what i know |
| 19:13.03 | ds2 | uboot makes sense to me |
| 19:13.22 | prpplague | ds2: what part of apex doesn't make sense to you? |
| 19:13.34 | ds2 | prpplague: the part where I have never seen apex before :) |
| 19:13.37 | RobotGuy | prpplague: I know Hammer can't add more memory. That's why I asked about the 2440 board. That is very cool. |
| 19:13.57 | RobotGuy | I do happen to have some Freescale NAND flash chips. :) |
| 19:14.02 | prpplague | ds2: so you don't like it with even trying it |
| 19:14.08 | ds2 | SpeedEvil: that deal is not an issue. worse case is I tack on resistor leads |
| 19:14.11 | prpplague | RobotGuy: but you said you wanted an expansion bus |
| 19:14.31 | ds2 | prpplague: no, that's not it. I don't like it cuz it is one more thing to learn on a project that I want to do in a small amount of time |
| 19:14.32 | prpplague | RobotGuy: even if you had a device with an expansion bus, you don't have the resources to add more sdram |
| 19:14.35 | RobotGuy | prpplague: Yes, that or just more memory and flash. I don't need memory expansion of it has enough of both. |
| 19:14.52 | ds2 | if I want to blow weeks on it, I'd probally use another board, do a custom layout, etc... |
| 19:14.57 | prpplague | ds2: thats the whole key to apex, its sooooo simple, you can master it in 5 minutes |
| 19:15.01 | RobotGuy | I would love to have 128/128 to work with. |
| 19:15.20 | SpeedEvil | I don't so much care about 128 ROM - if I can glue a SD on |
| 19:15.21 | RobotGuy | I could stuff all the software I might even need into 128 MB of Flash. |
| 19:15.32 | prpplague | RobotGuy: ok, so you don't need memory expansion bus, you just want more flash/ram |
| 19:15.33 | SpeedEvil | 2M ROM is just fine for that |
| 19:15.40 | ds2 | prpplague: so you are saying I can setup a kernel commandline + configure it to boot off either flash OR serial port OR the network in 5mins w/o ever seeing it before? |
| 19:15.40 | RobotGuy | prpplague: Correct! |
| 19:16.04 | prpplague | ds2: yep, pretty darn easy |
| 19:16.11 | prpplague | ds2: vvery straight forward |
| 19:16.21 | ds2 | I might just have to hold you to that ;) |
| 19:16.40 | prpplague | ds2: althought i don't know of anyone that needs serial port or network booting |
| 19:17.02 | ds2 | prpplague: are you booting things off of a raw MTD partition or a proper JFFS filesystem for the kernel? |
| 19:17.02 | RobotGuy | I've been trying to figure out how I can run all the things I want to run on Hammer, but I keep coming up with running out of memory according to my numbers. |
| 19:17.17 | ds2 | prpplague: I like to develop kernel stuff w/o flashing it |
| 19:17.39 | prpplague | ds2: most people boot from raw flash, copy the kernel and ramdisk to sdram, boot and the chroot to a jffs2 root filesystem |
| 19:18.07 | prpplague | RobotGuy: what are you trying to run? |
| 19:18.09 | RobotGuy | IRC Bot, Web server, Python with Pyro or Squeak, firewall, etc. |
| 19:18.11 | ds2 | that ought to work |
| 19:18.21 | RobotGuy | I have not ported eggdrop yet though. |
| 19:18.25 | prpplague | RobotGuy: 32mb should be plenty |
| 19:18.32 | ds2 | prpplague: how quickly do you guys ship things? |
| 19:18.42 | prpplague | ds2: generally same day |
| 19:18.53 | ds2 | hmmm |
| 19:19.06 | prpplague | ds2: but since this is a holiday weekend, it would be tuesday if you ordered today |
| 19:19.06 | RobotGuy | prpplague: I have about 17 MB RAM available. |
| 19:19.10 | SpeedEvil | prpplague: how much would price go up if you just put 128M on the next batch of hammers? |
| 19:19.16 | ds2 | cool.. order on monday before the weekend I want to work it |
| 19:19.21 | prpplague | RobotGuy: that seems very small |
| 19:19.51 | RobotGuy | prpplague: My initrd ramdisk is 8 MB. Kernel modules take up memory too. |
| 19:19.52 | prpplague | RobotGuy: if you are worried about ram, you need to use a jffs2 root and free up you initrd after usage |
| 19:20.05 | ds2 | holiday weekend? didn't know industry recogonizes easter as a holiday weekend |
| 19:20.07 | prpplague | RobotGuy: see there is your problem |
| 19:20.26 | prpplague | lives and works in the bible belt portion of the country |
| 19:20.31 | RobotGuy | prpplague: I have mixed stuff like you suggested awhile back - some stuff is in the initrd and other stuff is outside that. |
| 19:20.38 | ds2 | so you guys get Monday off? |
| 19:20.52 | prpplague | RobotGuy: i only suggested based on what you told me |
| 19:21.00 | prpplague | RobotGuy: you are telling me something different now |
| 19:21.08 | prpplague | ds2: yea and friday |
| 19:21.15 | ds2 | #@$!@#%#@%@#@!$!@#$@#@ lucky you :P |
| 19:21.23 | RobotGuy | prpplague: Yes, and it is working for me too. I have important stuff in the initrd that I need when the thumb drive is not attached. |
| 19:21.48 | prpplague | RobotGuy: ok, so change the default build from initrd to jffs2 |
| 19:22.12 | RobotGuy | prpplague: That's in the toolchain options? |
| 19:22.22 | prpplague | RobotGuy: buildroot |
| 19:22.28 | ds2 | prpplague: has anyone interfaced a hammer with a IDE interface w/o using USB? |
| 19:22.38 | RobotGuy | prpplague: Right, Buildroot toolchain options, right? |
| 19:22.51 | SpeedEvil | ds2: that uses a _lot_ of pins |
| 19:23.06 | SpeedEvil | ds2: and you'd have to bitbang them all, so it'd likely not be faster than USB. |
| 19:23.14 | ds2 | SpeedEvil: yep, I know. it is like doing a ISA bus |
| 19:23.20 | prpplague | RobotGuy: target-options |
| 19:23.29 | RobotGuy | prpplague: OK |
| 19:23.36 | ds2 | SpeedEvil: Prehaps but I am running out of USB ports! |
| 19:23.46 | SpeedEvil | ds2: hub! |
| 19:23.50 | prpplague | ds2: no but it is doable, T0mW made an IDE interface for the tuxscreen |
| 19:24.00 | SpeedEvil | ds2: nless you're also running out of bandwidth |
| 19:24.04 | ds2 | SpeedEvil: I am running out of USB ports on the Hub! |
| 19:24.13 | SpeedEvil | ds2: hub hub |
| 19:24.18 | SpeedEvil | Or 8 port |
| 19:24.24 | ds2 | they make 8 port hub chips? |
| 19:24.30 | SpeedEvil | think so. |
| 19:24.41 | prpplague | ds2: you are gonna use an ide harddrive? |
| 19:24.50 | SpeedEvil | But TI has some nice easy to use USB1.1 hub chips in qfn/tqfp |
| 19:24.51 | prpplague | ds2: the hammer doesn't support 8-port hibs |
| 19:24.56 | SpeedEvil | that tehy even sample. |
| 19:25.00 | RobotGuy | I have a four port USB Hub connected to my Hammer |
| 19:25.17 | ds2 | prpplague: yep. I want about 60G of storage + SD/xD/CF + USB thumb drive interface + bluetooth and a USB device interface |
| 19:25.23 | prpplague | ds2: the hammer only has 4 endpoints per usb host |
| 19:25.30 | ds2 | OH |
| 19:25.31 | SpeedEvil | ah |
| 19:25.34 | prpplague | ds2: interesting |
| 19:26.00 | SpeedEvil | ds2: you can't string 2 4 port hubs onto one hub say then? |
| 19:26.08 | SpeedEvil | prp: |
| 19:26.09 | prpplague | SpeedEvil: no |
| 19:26.25 | RobotGuy | Use two hubs - one connected to each port configured as Host. |
| 19:26.27 | ds2 | prpplague: thought it was a stock OHCI controller? |
| 19:26.28 | SpeedEvil | thought that was all done in software. |
| 19:26.38 | prpplague | ds2: it is a stock OHCI controller |
| 19:26.55 | prpplague | ds2: but stock OHCI also has limits to the number of end points |
| 19:27.03 | SpeedEvil | 127 IIRC |
| 19:27.11 | prpplague | SpeedEvil: thats standard pc |
| 19:27.21 | prpplague | SpeedEvil: most SoC's are either 4 or 8 |
| 19:28.04 | ds2 | prpplague: 4 end points is a real crimper... bluetooth/USB uses 2 I think |
| 19:28.24 | prpplague | ds2: some bluetooth can use up to 16 |
| 19:29.13 | ds2 | prpplague: I have seen that; looks like this won't work then |
| 19:29.40 | prpplague | ds2: if you are using the base bluetooth stuff, 2 is fine |
| 19:29.45 | ds2 | i should look for a serial HCI bluetooth module |
| 19:30.33 | prpplague | ds2: is serial going to be fast enough? |
| 19:30.52 | ds2 | is there an exposed serial port that can do 916000? |
| 19:30.54 | prpplague | isn't real sure what ds2 is trying to do |
| 19:31.01 | prpplague | ds2: no max is 115200 |
| 19:31.08 | ds2 | prpplague: I am trying to make a mobile NAS |
| 19:31.35 | prpplague | ds2: yea i saw you pointed to a device, but i'm not sure how you are trying to put all the options together |
| 19:32.00 | ds2 | prpplague: the bluetooth would let me get to the data via either the PAN profile or DUN |
| 19:32.13 | ds2 | probally then run samba or http over that link |
| 19:33.09 | prpplague | ds2: yea you'd need to run a standard usb dongle then |
| 19:33.36 | ds2 | prpplague: but then I would run out of endpoints |
| 19:34.11 | ds2 | potentially I could have the bt active (2), card reader active (1), hard drive (1), thumb drive (1) |
| 19:34.12 | prpplague | ds2: only if those endpoints are enumberated |
| 19:34.24 | prpplague | ds2: if you don't enable stuff like audio, they just don't get used |
| 19:34.47 | prpplague | ds2: ok thats 4 |
| 19:34.51 | prpplague | ds2: what about the other 4? |
| 19:34.51 | ds2 | that's 5 |
| 19:34.52 | RobotGuy | I can get audio with a USB module. Some are even supported in the 2.6.22 kernel. |
| 19:34.59 | prpplague | ds2: sorry can't count |
| 19:35.43 | ds2 | prpplague: I also want to be able to connect this to a PC directly so to use a single wire to PC, was thinking of connecting a USB gadget port to the "hub" and have a relay disconnect the USB host port from the hub if a PC is connected |
| 19:35.53 | RobotGuy | If I had 128 MB Flash I wouldn't even need a thumb drive, assuming for now infinite reads/writes. |
| 19:36.12 | RobotGuy | ds2: I almost have Gadget ethernet working. |
| 19:36.21 | prpplague | ds2: ahh |
| 19:36.23 | ds2 | RobotGuy: almost? |
| 19:36.23 | RobotGuy | ds2: My problem seems to be the host side. |
| 19:36.44 | prpplague | ds2: i think you'll be fine |
| 19:36.51 | RobotGuy | ds2: I can configure the Hammer side perfectly. |
| 19:37.03 | ds2 | prpplague: to Linux? |
| 19:37.11 | prpplague | ds2: ?? |
| 19:37.17 | ds2 | oops sorry |
| 19:37.25 | ds2 | that was for RobotGuy |
| 19:37.32 | RobotGuy | ds2: Yes, Linux. |
| 19:37.34 | prpplague | ds2: oh |
| 19:37.52 | prpplague | ds2: CDC ethernet works great for both linux and windows |
| 19:38.04 | prpplague | ds2: but i suspect you probably will use the mass storage gadget driver |
| 19:38.13 | ds2 | prpplague: do you know off hand if the Linux code enumerates a device even if it has no drivers attached to it, i.e. activate ep0? |
| 19:38.17 | RobotGuy | prpplague: I just have not got the Linux host side right yet. |
| 19:38.30 | ds2 | prpplague: it would be any of them, selectable via the UI |
| 19:38.35 | prpplague | ds2: no, it only enumerates if a driver is associated with it |
| 19:39.00 | ds2 | i guess I could juggle drivers |
| 19:39.13 | prpplague | ds2: naw i suspect you'll be fine |
| 19:39.19 | ds2 | does it panic if i run out of endpoints? |
| 19:39.40 | prpplague | no just doesn't enumberate since there are no endpoints to grab |
| 19:42.10 | *** join/#edev purl (i=ibot@pdpc/supporter/active/TimRiker/bot/apt) |
| 19:42.10 | *** topic/#edev is a channel for the discussion of hacking small consumer electronic devices, mostly ARM based; Hammer Development boards now available at http://www.tincantools.com/ |
| 19:42.15 | RobotGuy | prpplague: For the initrd |
| 19:42.37 | prpplague | RobotGuy: initrd doesn't need to know about the type of flash |
| 19:43.14 | RobotGuy | prpplague: It is an option for JFFS2 |
| 19:43.27 | prpplague | RobotGuy: oh, not initrd, jffs2 |
| 19:43.34 | prpplague | RobotGuy: yea serial flash |
| 19:43.39 | prpplague | RobotGuy: sorry parallel flash |
| 19:43.42 | RobotGuy | prpplague: In target options for buildroot |
| 19:44.07 | prpplague | RobotGuy: initrd != jffs2 |
| 19:44.23 | RobotGuy | So why am I doing this? |
| 19:46.29 | RobotGuy | Too much problems for me this month, one frustration after another, and nothing is working for me. :( :( I got to go for now. |
| 19:48.42 | prpplague | he gets frustated soooo easily |
| 19:50.07 | ds2 | what would be the term to search for those really really low profile dip sockets? I have seen them on hard drive boards; they are basically just the pins almost flush with the board and come on a plastic carrier? |
| 19:51.22 | prpplague | ds2: sorry no clue |
| 19:51.54 | prpplague | ds2: if i really needed to do a low profile for the hammer, i'd just solder it to a pcb and use that |
| 19:52.13 | ds2 | prpplague: I want to eventually switch over to the PM enabled version |
| 19:52.33 | prpplague | ds2: desolder and remove the old on |
| 19:52.34 | prpplague | one |
| 19:52.57 | ds2 | my through hole desolder skill results in pads missing :( |
| 19:53.19 | prpplague | ahh |
| 19:53.34 | ds2 | I do a lot of prying for through hole parts |
| 19:53.45 | prpplague | forgets that alot of people aren't good with a soldering iron |
| 19:53.59 | ds2 | I can do better with SMT |
| 19:54.23 | ds2 | too bad you used real pins on the hammer, otherwise, I'd just put a 90deg bend on each leg and just surface mount it |
| 19:54.54 | ds2 | there was a good reason why I bugged you about a no pins option before :) |
| 19:55.13 | prpplague | ds2: yea, you were the only person who asked for one |
| 19:56.05 | ds2 | it would be idea, IMO, to be able to get them w/o the jtag installed and w/o pins but I do understand this is not too practical for so many manufacturing options on a low volume product :( |
| 19:56.08 | ds2 | ideal |
| 19:56.44 | prpplague | yea, we might offer it in the future |
| 19:56.47 | SpeedEvil | Anyone competant can remove the pins in 2 min. |
| 19:57.24 | prpplague | SpeedEvil: yea, problem is most hobbists aren't that competant |
| 19:58.11 | SpeedEvil | I suppose |
| 19:58.13 | ds2 | SpeedEvil: reliably with through hole parts? I don't think so |
| 19:58.37 | SpeedEvil | ds2: yes - you don't move the pin till the pad is clearly reflowed |
| 19:58.43 | prpplague | desoldered the hammer pins in less than 5 minutes |
| 19:59.02 | ds2 | SpeedEvil: it could I am using the crappy ratshack irons that don't give me even heat |
| 20:00.22 | prpplague | ds2: thats probably your problem |
| 20:00.31 | prpplague | ds2: you should invest in a good soldering station |
| 20:00.44 | ds2 | prpplague: no budget for a metcal since I am officially a software guy ;) |
| 20:02.27 | SpeedEvil | ds2: you can get _much_ better than rat-shack on ebay |
| 20:02.28 | prpplague | ds2: http://www.halted.com/commerce/ccp14731-40-watts-soldering-station-for-hobbyist-wlc100-wel021.htm |
| 20:02.48 | SpeedEvil | 70 quid for a hot-air reflow tool and soldering iron digitally set |
| 20:04.20 | ds2 | disk full, bb |
| 20:05.10 | prpplague | http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=233533 |
| 20:05.13 | prpplague | thats what i have |
| 20:07.23 | ds2 | any experiences with this: |
| 20:07.25 | ds2 | http://www.mpja.com/prodinfo.asp?number=15860+TL |
| 20:08.28 | prpplague | looks |
| 20:08.49 | prpplague | never seen or heard of that one |
| 20:09.15 | ds2 | those show up on swapmeets a lot and the rumor is they are a clone of a Hakko iron |
| 20:09.19 | prpplague | it does seem to support a 1/32" tip |
| 20:09.39 | prpplague | trusts weller/cooper |
| 20:10.36 | ds2 | the hardware guys I know prefer metcal :) |
| 20:11.50 | prpplague | ds2: metcal if you have the $$$$ |
| 20:13.04 | prpplague | ds2: weller/cooper is perfect balance of functionality and price |
| 20:13.06 | ds2 | so it is true that irons should not have a single hot spot that heats proper on the tip but rather a uniform hot top that melts the solder anywhere on the tip? |
| 20:13.53 | prpplague | ds2: that tends to be an item for debate, depends on who you talk to, but i am of the opinion that it should be uniform |
| 20:14.15 | ds2 | rat shack irons have that one sweet spot or it just doesn't melt anything |
| 20:14.26 | prpplague | ds2: yea |
| 20:14.49 | ds2 | lunch |
| 20:14.56 | prpplague | rat shack generally sells weller rejects |
| 20:15.16 | ds2 | I've had dollar store irons that seems to be more uniform in heating (but tips were massive) |
| 20:17.42 | prpplague | yea there is a cheap weller 12/15 watt iron that is really good |
| 20:20.15 | prpplague | ds2: http://www.halted.com/commerce/catalog/product.jsp?&product_id=14771&czuid=1206044371087 |
| 20:56.03 | prpplague | hmm geeks.com has the eepc for $299 |
| 21:00.40 | SpeedEvil | 238 pounds is the cheapest I see it. |
| 21:00.48 | SpeedEvil | $470ish |
| 21:02.32 | SpeedEvil | But if I count all duties, and assume that shipment was $40, it's not that much cheaperr |
| 21:18.31 | ds2 | anyone know off hand what's the rule of thumb for max draw from a Li Ion battery? 2C? |
| 21:20.02 | SpeedEvil | 2C is pretty safe |
| 21:20.15 | SpeedEvil | you will typically get better cycle life at 1C |
| 21:20.22 | SpeedEvil | And capacity |
| 21:20.25 | MonMotha | ds2: depends on the chemistry |
| 21:20.27 | SpeedEvil | it won't catch on fire though |
| 21:20.29 | MonMotha | most are good to at least 2C |
| 21:20.38 | SpeedEvil | For some, 10C is fine. |
| 21:20.42 | SpeedEvil | Bu that's rare |
| 21:20.52 | ds2 | I am thinking of peak draw for a "surplus" Li Ion that I can't get full detailed specs for |
| 21:21.26 | MonMotha | like infrequent peak? |
| 21:21.34 | MonMotha | the major concern with Li-Ion for discharge rate is heating |
| 21:21.41 | ds2 | yeah like during power on for a 2.5" hard drive |
| 21:23.01 | MonMotha | you'd probably be good to 5C on most batteries provided that is infrequent |
| 21:24.06 | ds2 | excellent then the $1 close out cell phone Li should be prefect |
| 21:26.24 | ds2 | think they are ball park 900mAH each... figuring a 1A draw @ 5V, that should be plenty to account for switching losses |
| 21:29.38 | SpeedEvil | ds2: surplus is generally a bad plan |
| 21:29.57 | SpeedEvil | ds2: for batteries - as they age. |
| 21:30.19 | SpeedEvil | New li-ion cells are not horribly expensive. |
| 21:32.05 | SpeedEvil | peak draw is usually in the range of 5C |
| 21:32.10 | SpeedEvil | for a few seconds |
| 21:37.16 | ds2 | SpeedEvil: they shouldn't be that old |
| 21:37.31 | ds2 | these are sold in the surplus market but are new in the original mfg packaging |
| 21:37.50 | ds2 | some of these are clearance cell phonebatteries at a local store |
| 21:39.25 | SpeedEvil | ds2: what's it for? |
| 21:39.34 | ds2 | SpeedEvil: phones or PDAs |
| 21:39.42 | SpeedEvil | I mean - in your app |
| 21:39.53 | ds2 | SpeedEvil: trying to put together a mobile NAS |
| 21:40.01 | SpeedEvil | Ah |
| 21:40.30 | SpeedEvil | What N |
| 21:40.55 | ds2 | just's a one off project so if it is at 0.7C, that's not too big of a deal |
| 21:40.55 | ds2 | bluetooth probally |
| 21:40.55 | SpeedEvil | ah |
| 21:41.06 | ds2 | that's what i was bugging prpplague about earlier |
| 21:41.06 | SpeedEvil | I'd personally look at a couple of 18650 cells |
| 21:41.19 | SpeedEvil | 2Ah or so 18*65mm |
| 21:41.29 | SpeedEvil | lithium, with a step-down regulator |
| 21:41.33 | ds2 | 2 questions there: 1. who sells those in singles to individuals; how big are they? |
| 21:41.51 | prpplague | there are plenty of very nice dual 18650 batteries available off the shelf |
| 21:41.55 | ds2 | I rather use 1 and step up.... I have a nicely debugged circuit for doing single cells |
| 21:41.56 | SpeedEvil | dealextreme.com has lots of batteries in their flashlight parts section |
| 21:42.00 | prpplague | for things like camcorders |
| 21:42.57 | SpeedEvil | search 18650 |
| 21:44.02 | ds2 | I see more option now.. I looked at them a few years ago and no one would sell to individuals |
| 21:44.05 | prpplague | http://www.golinuxshop.com/catalog/product_info.php?products_id=2257 |
| 21:44.15 | prpplague | excellent battery |
| 21:44.46 | ds2 | yeah but dual cell charging is more complex |
| 21:45.00 | ds2 | and it makes USB charging less feasible |
| 21:45.22 | prpplague | ds2: only if it doesn't include the balance circuit, which the sony bats do |
| 21:45.40 | prpplague | ds2: thats no true, usb charging is easy as pie |
| 21:46.02 | ds2 | prpplague: that and I need at least a 7-8V source so for USB I need a switcher and ability to negotiate with the host for the full 500mA |
| 21:46.13 | ds2 | I don't want to charge a 2AH, dual cell battery at 100mA! |
| 21:46.30 | prpplague | ds2: easy to do |
| 21:46.53 | MonMotha | Negotiating with host... |
| 21:46.57 | MonMotha | Online with host. |
| 21:47.09 | ds2 | prpplague: oh? I will be behind a hub so I can't just "do it" |
| 21:48.03 | prpplague | ds2: the usb negotiation should be handled as part of your usb gadget driver, thats easy, as far as the charging you can look at this - http://www.elinux.org/Lithium_Ion_Charger |
| 21:48.36 | prpplague | ds2: although that circuit is designed for parallel cells, the chipset does support serial configs as well |
| 21:48.39 | ds2 | prpplague: I don't think that can work as I will be behind a hub |
| 21:48.48 | prpplague | ds2: it works |
| 21:49.20 | ds2 | prpplague: so you are saying [HAMMER] - [USB Hub] - [PC] will work? I thought I can't ask for >100mA if I am behind a hub? |
| 21:49.43 | MonMotha | the way you ask for juice on USB is no different if you're behind a hub versus if you're right on the host |
| 21:49.43 | prpplague | ds2: only if the hub is non-powered |
| 21:49.49 | MonMotha | however, you may not get the answer you want back |
| 21:49.54 | prpplague | ds2: if the usb hub is powered you can request up to 500mA |
| 21:50.15 | MonMotha | and in reality, you're never guaranteed more than 100mA, but most hosts won't say no |
| 21:50.21 | ds2 | prpplague: right but that 500mA requested is expected to be from the hub, not from the PC |
| 21:50.33 | prpplague | ds2: uh what? |
| 21:50.37 | *** join/#edev user__ (n=user@c-24-131-197-176.hsd1.pa.comcast.net) |
| 21:50.54 | MonMotha | the host handles power management. It knows if the hub is powered, and, if it is, how much power it has left |
| 21:51.14 | ds2 | prpplague: this is for that hammer project i was asking about earlier -- the hub will be locally powered by the Li Ion battery so if I ask for 500mA, the hub is expected to source it, right? |
| 21:51.15 | MonMotha | if the host says OK, you can draw your 500mA. Where it comes from is irrelevant |
| 21:51.39 | ds2 | MonMotha: is that per spec or just the way it is done? |
| 21:51.48 | MonMotha | that's per the spec, I do believe |
| 21:51.49 | prpplague | ds2: sorry i'm not following you |
| 21:51.50 | MonMotha | and how it's done |
| 21:52.09 | MonMotha | the spec certainly says that if you ask for power and the host OKs the usage, you've got it |
| 21:52.39 | ds2 | let me rephase things to see if we are talking about the same thing |
| 21:52.54 | SpeedEvil | The device has its descriptors read by the host. |
| 21:52.56 | MonMotha | are you powering the local hub off the battery you want to charge? |
| 21:53.02 | ds2 | let's assume for the moment - 1 PC, a 4 port hub, and 4 devices that requests 500mA each |
| 21:53.08 | SpeedEvil | The host then picks a configuration for the device and informs it of this. |
| 21:53.10 | ds2 | MonMotha: yes |
| 21:53.16 | MonMotha | yeah, that won't work |
| 21:53.35 | SpeedEvil | The device then configures itself in this manner, and knows it can draw the current as specified in the configuration. |
| 21:53.51 | MonMotha | however, I think you can have the hub enumerate using two interfaces. One interface will ask for 500mA from the host and use that to charge the battery, while the other interface is the self-powered (from the battery) hub |
| 21:54.06 | prpplague | ds2: ok so you have 1pc connected to a 4 port hub |
| 21:54.06 | MonMotha | though I will admit that the hub spec is one that I am not as familiar with |
| 21:54.20 | prpplague | ds2: is the hub bus powered or self powered? |
| 21:54.40 | MonMotha | the way I read his answer, the hub is self-powered, but it is powered from the battery he wants to charge |
| 21:54.57 | ds2 | prpplague: in that example, the hub lies and claims it is bus powered |
| 21:55.05 | ds2 | sorry |
| 21:55.13 | ds2 | lies and claims it is self powered |
| 21:55.23 | prpplague | ds2: why does it lie? |
| 21:56.05 | ds2 | prpplague: it is lying in this example because I want to try to flush out if something else will work |
| 21:56.08 | MonMotha | it sounds like what you'd need is a USB device with two interfaces. One is a self-powered hub, and the other is the battery charger. |
| 21:56.20 | prpplague | ds2: ok, well you have me very confused |
| 21:56.33 | ds2 | MonMotha: yes, but everything is physically in one box |
| 21:56.33 | prpplague | ds2: what are the 4 devices that will be connected to the hub? |
| 21:56.41 | MonMotha | the hammer and other USB doohickys plug into the self-powered hub, and the battery charger interface asks for all the power it can get from the host to charge the battery |
| 21:56.53 | MonMotha | ds2: that's ok. USB has multiple interfaces for that reason |
| 21:56.57 | MonMotha | the issue is if you can do that on a hub |
| 21:57.01 | MonMotha | I'm not sure if the hub spec allows that |
| 21:57.17 | MonMotha | the USB hub spec is one part of the USB spec I am not at all familiar with |
| 21:57.23 | MonMotha | I usually do devices only, and occasionally host |
| 21:57.32 | prpplague | MonMotha: i think there is some part of the functionilty that he's missing |
| 21:57.51 | prpplague | ds2: what are the 4 devices that will be plugged into the hub? |
| 21:58.06 | MonMotha | prpplague: the issue is that if the device controlling the battery charger is plugged into the hub powered by the battery, then it can't be guaranteed that the PC is supplying more than 100mA |
| 21:58.34 | MonMotha | so it would try to charge the battery from power that doesn't exist. The device would be operating under the assumption that it is getting it's power from the PC, but the PC thinks the hub is self-powered |
| 21:58.40 | prpplague | MonMotha: yea, but i don't understand why it needs to be plugged in the first place |
| 21:58.50 | prpplague | ds2: what are the 4 devices that will be plugged into the hub? |
| 21:59.06 | MonMotha | oh, I wasn't questioning the need for the hub. If he doesn't need it, then yeah, axe it. That makes htis easir |
| 21:59.23 | MonMotha | I presumed that there were other physical USB devices on this platform that needed to be exposed to the host |
| 21:59.37 | prpplague | MonMotha: yea thats what i'm not sure of |
| 21:59.58 | prpplague | MonMotha: based on what ds2 decribed earlier, i think there is a misunderstanding of what goes where |
| 22:03.55 | prpplague | ds2: if you are still talking about your portable nas, this is how you would hook it up |
| 22:04.16 | prpplague | ds2: the usb gadget driver on the hammer will connect directly to your pc |
| 22:04.25 | prpplague | ds2: it will request 500mA |
| 22:04.38 | prpplague | ds2: that 500mA is what is used to charge the battery |
| 22:05.01 | prpplague | ds2: once the 500mA has been authorized by the host pc, the hammer enables a gpio line that enables the charging circuit |
| 22:05.51 | prpplague | ds2: if you are using a 4 port hub chip on the hammer usb host connection, it plays no role in negotiating the 500mA with the host pc |
| 22:16.59 | prpplague | goes home |
| 22:42.37 | ds2 | sorry guys... bunch of people desended on my cube |
| 22:43.34 | Madsy | Your companion cube? |
| 22:43.58 | SpeedEvil | ds2 is really ds2/9 |
| 22:44.11 | ds2 | resistance is futile! |
| 22:46.30 | MonMotha | I should deck my cube out like a borg cube |
| 22:46.32 | MonMotha | that would be awesome |
| 23:12.25 | ds2 | MonMotha: looking back, your interperation is what I was saying |
| 23:30.31 | MonMotha | is there any reason you can't eliminate the hub like prp was saying? |