Hi,

I am working  on a synchronization protocol using TelosB. My goal is to 
get timestamp precision in microseconds. I have read a lot of documents 
about this topic, but nobody has a good solution to do this.

I understand that packet timestamp it is realized at mac layer, with the 
cc2420 files. If  I define in "/tos/platforms/telosa/ActiveMessageC.nc" 
the follow:

interface PacketTimeStamp<TMicro, uint32_t> as PacketTimeStampMicro;

I obtain a "wonderful" compilation error:

"In component 'ActiveMessageC':
/opt/tinyOS-2.1.1/tos/platforms/telosa/ActiveMessageC.nc: 81: no math"


Could someone to give me some light with this?

Thanks!
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