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| 02:02.55 | prpplague | orbarron: hey bud |
| 02:03.00 | prpplague | orbarron: what's cookin? |
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| 04:12.29 | koqla | Hi, might anyone have experience using a wolfson audio codec? I am not sure if my chip (wm8940) is bad..the resistance between MICP and MICN inputs is about 1 ohms..does this seem right for mic inputs? also another reason I believe its a bad chip is that I set register values to connect/disconnect those inputs with unexpected results |
| 04:13.17 | thegorn | yea, 1 ohm sounds not good |
| 04:13.39 | thegorn | i would assume the datasheet would have some info on input impedance tho on the inputs |
| 04:17.06 | koqla | thegorn: yes the datasheet does have info regarding input impedance. however im measuring the resistance between MICP and MICN...does this mean the expected resistance is at least the sum of both input impedances? |
| 04:17.59 | thegorn | does the input impedance even measure right? |
| 04:19.18 | koqla | thegorn: i am not quite sure how to measure that..where would I put the other probe? one obviously goes to the MICN input, and the other? |
| 04:21.59 | thegorn | ground i guess |
| 04:27.44 | koqla | measured to ground..that would be 1.2Mega ohms...which is way above the input impedance |
| 04:28.25 | thegorn | yea, it is a little tricky to measure as it is probably specified with vin at a certain frequency (not DC) |
| 04:33.58 | koqla | hmm |
| 04:37.23 | SpeedEvil | how are you measuring the impedence? |
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| 04:41.02 | koqla | SpeedEvil: im not too sure where the other probe goes, but I measured the 1.2MOhms with a probe going to MICP or N and to AGND |
| 04:41.28 | koqla | SpeedEvil: I get ~1 ohms when I measure between MICP and MICN inputs |
| 04:56.41 | SpeedEvil | measuring with unconstrained voltages may do weird things |
| 04:57.19 | SpeedEvil | I do wonder if there is a clamp |
| 04:58.14 | koqla | im checking the surface mount assembly to see if there are any shorts |
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| 10:25.08 | keesj | does one know where VFPv3 is described? |
| 10:26.34 | roxfan | ARM ARM |
| 10:26.40 | keesj | the ARM Architecture reference manual is kinda weird in that aspect. it talks about the "common VFP subarchitecture V2" |
| 10:26.56 | roxfan | DDI 0406C |
| 10:27.21 | roxfan | "This appendix describes version 3 of the Common VFP subarchitecture, and the differences in the earlier versions |
| 10:27.21 | roxfan | of the Common VFP subarchitecture." |
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| 10:29.59 | roxfan | see also A1.4.1 Instruction set architecture extensions |
| 10:30.05 | keesj | thanks. I have been seaching for days |
| 10:32.07 | keesj | I was looking in 0406*B* and other documentation like the cortex |
| 10:32.12 | keesj | a8 |
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| 13:23.53 | prpplague | T0mW: ping |
| 13:24.08 | T0mW | prpplague: good morning |
| 13:24.32 | prpplague | T0mW: good morning |
| 13:24.36 | prpplague | T0mW: you get my email? |
| 13:24.42 | T0mW | ummm.... |
| 13:24.50 | T0mW | looks |
| 13:25.43 | T0mW | prpplague: I'm interesed |
| 13:26.14 | T0mW | prpplague: almost ready to dump this project back into the boss's lap. |
| 13:26.38 | prpplague | T0mW: you going to be on irc for a while today? i need to make a couple of phone calls this morning, but i'd like to talk to on what i need done |
| 13:27.17 | T0mW | prpplague: yeah, I'll be here. Getting two kernel drivers to play nice together. |
| 13:27.29 | prpplague | T0mW: great give me about an hour |
| 13:27.35 | T0mW | np |
| 13:33.04 | T0mW | prpplague: hey, quick question. I've a 2.6.39 kernel here and thinking about going up to 3.8, how much pain will there be in moving my custom drivers up to 3.8? |
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| 13:39.11 | prpplague | T0mW: arm? |
| 13:40.18 | T0mW | prpplague: x86 |
| 13:40.41 | prpplague | T0mW: shouldn't be too bad then |
| 13:40.59 | T0mW | prpplague: any problems with ARM? |
| 13:41.11 | prpplague | T0mW: device tree |
| 13:41.15 | T0mW | ok |
| 13:41.28 | prpplague | T0mW: most everything from 3.7 up for arm is moving to device tree |
| 13:41.43 | prpplague | T0mW: so you really need to be watchful of what is what there |
| 13:42.55 | T0mW | prpplague: figured that ARM would be undergoing big changes anyway with formal insertion into main tree. |
| 13:43.47 | prpplague | T0mW: well it's been in the mainline tree for some time |
| 13:44.12 | prpplague | T0mW: i think there was some silly press release going around that acted like arm in mainline "just recently happened" |
| 13:44.19 | prpplague | T0mW: see /msg |
| 13:46.36 | prp^2 | bbiab |
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| 15:15.30 | prpplague | T0mW: ok back |
| 15:15.40 | prpplague | T0mW: give me a ping when you have some time |
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| 15:56.24 | XandriX | prpplague: sup |
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| 16:17.18 | prpplague | XandriX: nada |
| 16:23.30 | T0mW | prpplague: okay, kernel recompiling, I've got a couple minutes. well, more than that, OE is doing the build. |
| 16:23.39 | prpplague | T0mW: hehe |
| 16:23.49 | XandriX | by oe you mean openembedded right ? |
| 16:23.52 | T0mW | rootfs takes 10 minutes |
| 16:24.02 | T0mW | XandriX: yup |
| 16:24.07 | XandriX | i love that thing |
| 16:24.26 | XandriX | cept that most patches for the sharp zaurus slc3200 are gone |
| 16:24.34 | XandriX | still has one of those and likes it alot lol |
| 16:24.54 | XandriX | is loving his moded goodfet42 |
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| 16:26.37 | prpplague | sjhill: hey bud |
| 16:26.50 | sjhill | prpplague: hey there |
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| 16:28.38 | sjhill | prpplague: anything new and interesting? |
| 16:32.05 | landley_ | most of the patches in what, openembedded? |
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| 16:33.24 | prpplague | sjhill: nasa |
| 16:33.26 | prpplague | nada |
| 16:33.56 | sjhill | i have a ton of kernel releases to do |
| 16:38.38 | landley_ | 20 days since I gave my talk at CELF. Video still not up. |
| 16:38.59 | landley_ | I suspect they only actually recorded the keynotes and talks mentioning Yocto in some way. |
| 16:40.11 | landley_ | prpplague: heh, http://www.flickr.com/photos/13825348@N03/8508477645/in/set-72157632866513564 |
| 16:40.30 | prpplague | hehe |
| 16:42.43 | landley_ | Judging by the photos, I wasn't there. |
| 16:43.10 | landley_ | Oh well, good to know. I can give the same talk at texas linuxfest then, instead of preparing a new topic. |
| 16:44.05 | prpplague | :) |
| 16:44.29 | landley_ | If it was anybody else, I'd worry that as soon as I submit a proposal of the same talk to another conference, video would go up. |
| 16:44.39 | prpplague | landley_: hehe hold your horses, they are usually very very slow on the videos and such, they used to only release them all at one time 4 or 5 months later |
| 16:44.46 | landley_ | But let's face it: this is the Linux Foundation. That's not a realistic worry. |
| 16:45.34 | prpplague | hehe |
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| 17:11.06 | landley | prpplague: nasa and nada are pretty close these days. |
| 17:11.26 | prpplague | landley: true |
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| 18:09.56 | XandriX | the hackers dilema local reverse engineering competition to broke to buy the item i want to re |
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