From: jwhui <jwhui>
Date: Wed, 17 Jan 2007 05:14:18 +0000 (+0000)
Subject: Bug fix for problem noted by David Moss. The radio does not switch
X-Git-Tag: tinyos/2.0.1~229
X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=commitdiff_plain;h=347d6b32e2b1526b0a88d7bcd06da5d68633918b;p=tinyos-2.x.git

Bug fix for problem noted by David Moss. The radio does not switch
frequencies until either (i) transmitting a packet or (ii) turning off
then on receive mode. The fix is to turn off then on receive mode.
---

diff --git a/tos/chips/cc2420/CC2420ControlP.nc b/tos/chips/cc2420/CC2420ControlP.nc
index 639fc9c1..38464cb4 100644
--- a/tos/chips/cc2420/CC2420ControlP.nc
+++ b/tos/chips/cc2420/CC2420ControlP.nc
@@ -266,10 +266,14 @@ implementation {
     }
 
     call CSN.clr();
+    call SRFOFF.strobe();
     call FSCTRL.write( ( 1 << CC2420_FSCTRL_LOCK_THR ) |
 		       ( ( (channel - 11)*5+357 ) << CC2420_FSCTRL_FREQ ) );
     call PANID.write( 0, (uint8_t*)id, sizeof( id ) );
     call CSN.set();
+    call CSN.clr();
+    call SRXON.strobe();
+    call CSN.set();
     call SyncResource.release();
     
     post syncDone_task();