Sorry that i didn't make the interface problem clear... The accelerometer is digital using i2c interface, and doesn't provide a readstream interface.
With another sensor, we reached high sampling speeds using the processor's ADC, but the bus does'nt seem to reach the necessary speeds, maybe delays or something else slows down the sampling... Saludos y muchas gracias! --- Martín René Vilugrón San Carlos de Bariloche Patagonia Argentina On Tue, Apr 16, 2013 at 1:58 PM, Michael Schippling <[email protected]>wrote: > There are some intriguingly named files containing "Stream" and "DMA" > in the ...tinyos-2.x_main/tos/chips/**msp430/adc12 directory. Some of > them even have comments which reference TEP documents that might > explain what they are trying to do. Maybe one of them will allow > you to run the ADC at higher rates... > > In T1 with the mica's (what I know....) one could free-run a single > ADC at low audio rates by bypassing most of TOS. > > MS > > > > On 4/15/2013 1:27 PM, Martín René wrote: > >> We are currently using the Z1 Motes and sampling at 200Hz without >> problems, but we can't raise the sampling speed above said speed without >> starting to have problems. We need to sample at 1000Hz and we can't get >> there. >> >> I know that the resources of the platform are scarse, but i know that >> the ADC can manage those speeds, and as we don't have a analog >> accelerometer we neee to speed up all we can the ADXL. >> >> Is it possible to sample the accelometer at those speeds? >> If it is, ¿how? >> >> Thanks! and saludos >> >> --- >> Martín René Vilugrón >> San Carlos de Bariloche >> Patagonia Argentina >> >> >> ______________________________**_________________ >> Tinyos-help mailing list >> Tinyos-help@millennium.**berkeley.edu<[email protected]> >> https://www.millennium.**berkeley.edu/cgi-bin/mailman/** >> listinfo/tinyos-help<https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help> >> >>
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