X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=tos%2Fchips%2Fcc2420%2Ftransmit%2FCC2420TransmitP.nc;h=bbf76f09f7f41464b70c0dcb09acf34596ea5f4d;hb=df004818be0944a5459b2d23dd4b49c55b716448;hp=1b6cd48f5e0b5dd0b816d2db0c192e17c262fd2d;hpb=6d640d119fc0dbe575698cb91c60dc4e2ff1fc9d;p=tinyos-2.x.git

diff --git a/tos/chips/cc2420/transmit/CC2420TransmitP.nc b/tos/chips/cc2420/transmit/CC2420TransmitP.nc
index 1b6cd48f..bbf76f09 100644
--- a/tos/chips/cc2420/transmit/CC2420TransmitP.nc
+++ b/tos/chips/cc2420/transmit/CC2420TransmitP.nc
@@ -268,12 +268,12 @@ implementation {
         call CaptureSFD.captureFallingEdge();
         call PacketTimeStamp.set(m_msg, time32);
         if (call PacketTimeSyncOffset.isSet(m_msg)) {
-           nx_uint8_t *taddr = m_msg->data + (call PacketTimeSyncOffset.get(m_msg) - sizeof(cc2420_header_t));
-           timesync_radio_t *timesync = (timesync_radio_t*)taddr;
+           uint8_t absOffset = sizeof(message_header_t)-sizeof(cc2420_header_t)+call PacketTimeSyncOffset.get(m_msg);
+           timesync_radio_t *timesync = (timesync_radio_t *)((nx_uint8_t*)m_msg+absOffset);
            // set timesync event time as the offset between the event time and the SFD interrupt time (TEP  133)
            *timesync  -= time32;
            call CSN.clr();
-           call TXFIFO_RAM.write( call PacketTimeSyncOffset.get(m_msg), (uint8_t*)timesync, sizeof(timesync_radio_t) );
+           call TXFIFO_RAM.write( absOffset, (uint8_t*)timesync, sizeof(timesync_radio_t) );
            call CSN.set();
         }