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| 03:29.57 | rue_shop | ooh its not elinux |
| 03:30.02 | rue_shop | or is it |
| 03:30.08 | rue_shop | where am I in the wrong channel |
| 03:30.21 | rue_shop | hmm |
| 03:30.27 | rue_shop | prpplague, you awake? |
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| 03:34.10 | solar | I have not seen him talk in 9 or so hours |
| 03:34.36 | solar | or halfish of that :) |
| 03:35.33 | rue_shop | do you know? |
| 03:39.02 | wmat | rue_shop: there is a #elinux now |
| 03:39.17 | wmat | but prpplague is in both |
| 03:40.52 | rue_shop | yea I'm not sure of the diff |
| 03:44.09 | kergoth | elinux existed long before edev ever did :) |
| 03:50.23 | solar | rue_shop: anyway. what are you trying to solve now? |
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| 03:52.45 | rue_shop | I have to install bison |
| 03:53.56 | rue_shop | haha I have to upgrade 83 packages to install bison |
| 03:54.15 | rue_shop | ooo includes libc6, man I'm glad this is just a workstation |
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| 15:38.35 | *** topic/#edev is Discussion of embedded systems (Hardware/Software/Linux/WinCE/Commercial Device Repurposing) : Aboriginal Linux (formerly FWL) : Busybox and Buildroot : http://www.elinux.org |
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| 16:29.18 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 16:36.01 | CosmicPenguin | Scotch! There is a solution.... |
| 16:42.47 | Mirell | Yah, I was scared trying to upgrade Subversion on a production machine, and it wanted to upgrade libc6. |
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| 16:51.40 | prpplague | CosmicPenguin: greetings |
| 16:51.44 | prpplague | Mirell: greetings |
| 16:52.17 | chouimat | morning |
| 16:58.49 | prpplague | chouimat: hey frenchy |
| 16:59.31 | prpplague | why is it when you _have_ work that a ton of people want to hire you, and when you _don't_ have work you can't get anyone to return your phone calls |
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| 17:11.23 | prpplague | dijenerate: ping |
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| 17:21.28 | chouimat | prpplague: I'm wondering the same thing too ... |
| 17:21.34 | Crofton|work | prpplague, karma |
| 17:21.44 | chouimat | could be |
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| 19:02.56 | rektide | anyone use mobile-oriented mcu's w/ onboard dsp? |
| 19:03.08 | rektide | i wanna do some audio beamforming experiments for fun |
| 19:03.18 | rektide | not sure what mcu's to look at |
| 19:05.06 | Sphere | it has to be very power efficient? |
| 19:06.20 | rektide | power efficiency would be a huge perk, but i'm ok with this experimental system sucking down 2, maybe 3 watts of power |
| 19:07.13 | Sphere | take a look at www.xmos.com, lots of horsepower in a reasonable power package |
| 19:07.27 | SpeedEvil | how many beams |
| 19:10.04 | rektide | good q SpeedEvil |
| 19:10.22 | SpeedEvil | And what sort of frequency |
| 19:10.57 | SpeedEvil | The complexity goes all the way from something you can do on a PIC, all the way up to something requiring a FFT per beam. |
| 19:11.57 | rektide | i was looking to see what kind of integrated DSP i could get |
| 19:12.12 | rektide | before starting to build those concrete system requirements |
| 19:16.39 | SpeedEvil | How many of these are you building? |
| 19:25.00 | rektide | dunno, will probably spin a dozen boards |
| 19:29.14 | Sphere | do you need fixed point? |
| 19:29.28 | rektide | i could do fp |
| 19:29.44 | rektide | err floating point |
| 19:30.00 | rektide | seems to be more common for dsp's |
| 19:30.06 | rektide | and would probably give me better results |
| 19:30.10 | rektide | but fixed is ok |
| 19:30.10 | Sphere | there aren't many out there doing floating point |
| 19:30.11 | rektide | too |
| 19:30.29 | rektide | hmm ok, i may have had my perspective polluted by high end dsp's i briefly scoped out |
| 19:32.09 | SpeedEvil | I suppose beagleboard is out? |
| 19:34.33 | rektide | honestly CPU is starting to appear tempting |
| 19:34.56 | rektide | havent checked out the NEON instruction set |
| 19:35.25 | rektide | to see what kind of MAC operations there are |
| 19:35.49 | penguinece | rektide, neon is sexy. 128 bit registers for parallel ops |
| 19:36.29 | rektide | i'm sure neon is sexy, just not sure if its the sexy i need yet |
| 19:37.23 | penguinece | it speeds up FFTs, if thats the sexy you need. |
| 19:37.34 | rektide | it is |
| 19:38.51 | Sphere | with an xmos quadcore chip you can run 32 threads at 50MIPS or 16 at 100MIPS and it has a MAC, but no FP, power consumption is bout 2 Watt max |
| 19:39.05 | rektide | Cortex-M4 has an optional DSP |
| 19:39.27 | rektide | given that all i really need is raw FFT number crunching any little else (Besides a big enough pipe to keep the dsp fed) |
| 19:39.39 | rektide | i should at least see what dsp performance is out there |
| 19:39.43 | rektide | soc+dsp |
| 19:39.53 | rektide | i just havent found many impls yet, and no real numbers |
| 19:39.55 | rektide | still searching |
| 19:40.47 | rektide | may be a little ahead of the curve here on the M4 actually being here. and i dont know what other mcu's might be worthy of investigation. |
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| 19:46.54 | SpeedEvil | Are you trying to do arbitrary sound beaming, or just tone? |
| 19:55.11 | rektide | uh inverse of arbitrary bean forming |
| 19:55.20 | rektide | phase detection |
| 19:55.35 | SpeedEvil | I pondered doing beanforming. |
| 19:55.36 | rektide | phase alignment detection |
| 19:55.44 | SpeedEvil | But I planted raspberries instead. |
| 19:55.50 | SpeedEvil | ah |
| 19:56.02 | rektide | thats a euphemism for small-scale explosives, isnt it? |
| 19:56.02 | SpeedEvil | so basically a steered mic? |
| 19:56.05 | rektide | yes |
| 19:56.10 | SpeedEvil | No. |
| 19:56.24 | SpeedEvil | It's raspberries. The red conicalish cellular fruit. |
| 19:56.40 | SpeedEvil | I've been picking today - another 3Kg for a total of about 10Kg so far |
| 19:57.20 | Mirell | I want a pad thai garden. |
| 19:58.05 | SpeedEvil | I think I'm going toend up with an embarresment of soft fruit this year. |
| 19:58.36 | SpeedEvil | Lots of gooseberries, raspberries, blaccurrants, redcurrants, though most is raspberries. Apples are looking good too |
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| 21:05.54 | rektide | win 6 |
| 21:05.58 | rektide | crap |
| 21:06.04 | rektide | i need a *stop being a moron* irssi filter |
| 21:08.16 | SpeedEvil | At least it's better than typing out your password |
| 21:27.38 | calculus | rektide: have you looked at the hawkbaord, it has an arm9+dsp (not sure of the dsp details)? |
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