From: R. P. M. <log...@gm...> - 2011-02-10 11:09:02
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It depends upon which GPIO pin you want to use. Some can be configured to output clock signals which can oscillate faster than 100MHz. But if you want to do software control bit bashing then there is no chance you will ever get 100MHz. You might be able to get a few MHz (perhaps 5MHZ?) with dedicated code doing nothing else other than flipping the bit, but I've never tried it. On 2/10/11, Giovanni C <uc...@gm...> wrote: > > Actually 100MHz would be really fine! Is there a way to reach it? > > Thanks > Giovanni > > > Matthew McPherrin wrote: >> >> On Thu, Feb 10, 2011 at 1:11 AM, Giovanni C <uc...@gm...> wrote: >> >> No way. 0.5 nanosecond period oscillations is 2 gigahertz: There's no >> way >> a 600mhz ARM chip can accurately time that, ignoring all other factors. >> >> > > -- > View this message in context: > http://old.nabble.com/Overo-GPIO-minimum-switching-time-tp30890534p30890661.html > Sent from the Gumstix mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: > Pinpoint memory and threading errors before they happen. > Find and fix more than 250 security defects in the development cycle. > Locate bottlenecks in serial and parallel code that limit performance. > http://p.sf.net/sfu/intel-dev2devfeb > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |