[Tinyos-2-commits] CVS: tinyos-2.x/tos/chips/cc2420/packet CC2420PacketP.nc, 1.3, 1.4

[kusy]

Update of /cvsroot/tinyos/tinyos-2.x/tos/chips/cc2420/packet
In directory sc8-pr-cvs10.sourceforge.net:/tmp/cvs-serv14318

Modified Files:
	CC2420PacketP.nc 
Log Message:
Fixing T32khz to TMilli conversion - coeficient 32 needs to be changed to 28.1.

Index: CC2420PacketP.nc
===================================================================
RCS file: /cvsroot/tinyos/tinyos-2.x/tos/chips/cc2420/packet/CC2420PacketP.nc,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** CC2420PacketP.nc	13 Jul 2008 03:26:02 -0000	1.3
--- CC2420PacketP.nc	13 Aug 2008 07:37:05 -0000	1.4
***************
*** 139,146 ****
    }
  
    async command uint32_t PacketTimeStampMilli.timestamp(message_t* msg)
    {
!     int32_t offset = call PacketTimeStamp32khz.timestamp(msg) - call LocalTime32khz.get();
!     return (offset >> 5) + call LocalTimeMilli.get();
    }
  
--- 139,149 ----
    }
  
+   //timestmap is always represented in 32khz
+   //28.1 is coefficient difference between T32khz and TMilli on MicaZ
    async command uint32_t PacketTimeStampMilli.timestamp(message_t* msg)
    {
!     int32_t offset = (call LocalTime32khz.get()-call PacketTimeStamp32khz.timestamp(msg));
!     offset/=28.1;
!     return call LocalTimeMilli.get() - offset;
    }