On Wed, Feb 18, 2009 at 10:15 PM, James Snyder <jbsnyder at fanplastic.org>wrote:
> OK. At least I know my compiler isn't messed up :-)
> I'm curious now though whether similarly clocked ARM7 vs AVR vs Cortex-M3
> (ARM Thumb2) vs etc.. do for these types of tests.
>
> -jsnyder
>
> On Feb 18, 2009, at 10:24 AM, Dado Sutter wrote:
>
> Hello,
>
> On Wed, Feb 18, 2009 at 10:59, James Snyder <jbsnyder at fanplastic.org>wrote:
>
>>
>> > On Wed, Feb 18, 2009 at 02:19, James Snyder <jbsnyder at fanplastic.org>wrote:
>> >
>>>
>>> So, one of the things I've been doing recently is tracking timing data
>>> for adcscope.lua when running it. I've found certain things that increase
>>> or decrease the amount of time spent getting samples, but I hadn't actually
>>> checked what the bare minimum time would be for a dry loop like the
>>> following:
>>> >
>>> > term.clrscr()
>>> >
>>> > while 1 do
>>> > t1 = tmr.start(0)
>>> > t2 = tmr.read(0)
>>> > dtime = tmr.diff(0,t2,t1)
>>> > term.gotoxy(1,1)
>>> > term.putstr(string.format("Time (us): %06d",dtime))
>>> > end
>>> >
>>> > For LM3S6965, I get 79 us. Is this correct?
>>
>>
> 79us exactly in my EK-LM3S8962 too.
> (And I've figured out that you have disabled XMODEM Xfer on your build :)
>
> Abra?osssssssssss
> Dado
>
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> --
> James Snyder
> Biomedical Engineering
> Northwestern University
> jbsnyder at fanplastic.org
>
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>
>
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