[Tinyos-devel] tmote P3.6 / P3.7 direction

Philip Levis pal at cs.stanford.edu
Thu Jul 3 16:05:11 PDT 2008


On Jul 3, 2008, at 1:50 PM, Geoffrey Werner-Allen wrote:

>
> Another option is to change the default setting in PlatformC to have  
> the pins configured as inputs, but IIRC the concern here is that  
> when not connected to USB this will sink some extra power into the  
> chip and increase the device power consumption.  So it seems like  
> you need to handle the USB state and serial port setup somewhat  
> independently.

Can someone validate that configuring them as inputs sinks extra  
power, and how much? We have a tendency to add code to do things  
perfectly, and this has over time led to TinyOS to be less tiny than  
it could be.

Phil


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