X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=tos%2Fchips%2Fcc2420%2Freceive%2FCC2420ReceiveP.nc;h=b50ad035a36a93e54086eb8bdaee2f68e1489988;hb=979965da13886883fe7399d60ff4d025f53bfd4c;hp=30a421914b9da6a819bfe2e3db99dc92b7ba03c2;hpb=10c02f9ece9b5ee20aa93c877d70fa6689ef7a7d;p=tinyos-2.x.git

diff --git a/tos/chips/cc2420/receive/CC2420ReceiveP.nc b/tos/chips/cc2420/receive/CC2420ReceiveP.nc
index 30a42191..b50ad035 100644
--- a/tos/chips/cc2420/receive/CC2420ReceiveP.nc
+++ b/tos/chips/cc2420/receive/CC2420ReceiveP.nc
@@ -126,6 +126,10 @@ implementation {
       reset_state();
       m_state = S_STARTED;
       atomic receivingPacket = FALSE;
+      /* Note:
+         We use the falling edge because the FIFOP polarity is reversed. 
+         This is done in CC2420Power.startOscillator from CC2420ControlP.nc.
+       */
       call InterruptFIFOP.enableFallingEdge();
     }
     return SUCCESS;