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by dom
Tue Nov 22, 2011 11:13 pm
Forum: General discussion
Topic: overclocking
Replies: 92
Views: 12239

Re: overclocking

<t>No, I've never done any permanent damage to a chip through overclocking.<br/> I've never experienced any failure at 800MHz (and I've ran several devices for many days at high and low temperatures).<br/> My board seemed okay at 900MHz with limited testing.<br/> My board crashed during boot up at 9...
by dom
Tue Nov 22, 2011 10:55 pm
Forum: General discussion
Topic: Preinstalled kernel modules
Replies: 16
Views: 1757

Re: Preinstalled kernel modules

<t>Yes, this is up for negiotiation.<br/> <br/> If there are features or drivers you think are important to enable, then please post.<br/> These should be supported in the .config file of 2.6.35 kernel.<br/> <br/> Obviously you can build your own kernel (or ask nicely) if you have unusual requiremen...
by dom
Wed Nov 16, 2011 2:28 pm
Forum: General discussion
Topic: Easy GPIO Hardware & Software
Replies: 133
Views: 42378

Re: Easy GPIO Hardware & Software

<r>GPIO driver will be standard linux. See here:<br/> <URL url="http://www.mjmwired.net/kernel.....n/gpio.txt">http://www.mjmwired.net/kernel.....n/gpio.txt</URL><br/> <br/> You can control it by reading/writing files in /sys/class/gpio/ from linux console and bash scripts.<br/> I'm sure there also ...
by dom
Thu Nov 03, 2011 11:13 am
Forum: General discussion
Topic: Should I be able to boot off a 16GB SDHC?
Replies: 20
Views: 2287

Re: Should I be able to boot off a 16GB SDHC?

<t>I think we can only definitively say a card will work if we have tested it.<br/> The number of sdcards in existance is greater than we can test ouselves.<br/> <br/> A wiki seems like a suitable place where cards that have been tested to work or not work can be documented.<br/> <br/> Personally, I...
by dom
Wed Sep 28, 2011 8:19 pm
Forum: General discussion
Topic: Floating point performance?
Replies: 50
Views: 9725

Re: Floating point performance?

<t>The key option is -mfpu=vfp, but you get that as standard if you use the cross-compiler (bcm2708-gcc).<br/> That improves the results to:<br/> ./whetstone<br/> Loops: 1000, Iterations: 100, Duration: 106 sec.<br/> C Converted Double Precision Whetstones: 94.3 MIPS<br/> <br/> but most of the time ...

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