[Gta04-owner] BMA180 interrupts & polling interval
luk at slyon.de
Thu Jun 13 11:32:49 CEST 2013
Thanks for the hint.
I found this information, too, after writing the mail.
So I need some more clever way to sync my devices.
Am 13.06.2013 11:11, schrieb Klaus-Hendrik Wolf:
> if you take a look at the datasheet of the sensor, you will find that
> its bandwidth is limited to 1200Hz ( section 7.7.2).
> Klaus Hendrik
>  http://www.spezial.cz/pdf/BST-BMA180-DS000-03.pdf
> Am 12.06.2013 14:11, schrieb Lukas Märdian:
>> I'm currently trying to trigger an event on several GTA04s at once
>> (microsecond range), using the BMA180 accelerometer.
>> It seems that the bma150 driver, which is used, can choose between an
>> "Interrupt-Mode" and a "Polling-Mode" . By default the "Polling-Mode"
>> is used, but the drivers minimum polling interval is 1 millisecond,
>> which is too big for my use case. I'd need a 1 usec or at least 10 usec
>> polling interval.
>> Can anybody tell, who I can switch the bma150 driver into
>> "Interrupt-Mode", to e.g. listen to the "High-G" or "Low-G" interrupts
>> (from userspace)? Or how I can lower the polling interval in the driver?
>> Or do you have any other idea how it could be possible to trigger an
>> event (e.g. call a function) at the very same time (microsecond range)
>> on several GTA04s, without using any networking capabilities?
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