X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=tos%2Fchips%2Fatm128%2Fspi%2FAtm128SpiP.nc;h=1838f7b0d00a48c6a76858b0341c825ebeca97d7;hb=cb17f736919c7a258b50e26caad5b1c22c30fc1c;hp=d457e42a7ce9847e932b08450bc98c315d66dd0d;hpb=03131a0f96eb7a88d130e42bacad7805c403335e;p=tinyos-2.x.git

diff --git a/tos/chips/atm128/spi/Atm128SpiP.nc b/tos/chips/atm128/spi/Atm128SpiP.nc
index d457e42a..1838f7b0 100644
--- a/tos/chips/atm128/spi/Atm128SpiP.nc
+++ b/tos/chips/atm128/spi/Atm128SpiP.nc
@@ -126,10 +126,14 @@ implementation {
   }
 
   async command uint8_t SpiByte.write( uint8_t tx ) {
-    /* no need to enable the SPI bus since that must have been done 
-       when the resource was granted */
-    // call Spi.enableSpi(TRUE);
-    // call McuPowerState.update();
+    /* There is no need to enable the SPI bus and update the power state
+       here since that must have been done when the resource was granted. 
+       However there seems to be a bug somewhere in the radio driver for 
+       the MicaZ platform so we cannot remove the following two lines 
+       before that problem is resolved. (Miklos Maroti) */
+    call Spi.enableSpi(TRUE);
+    call McuPowerState.update();
+
     call Spi.write( tx );
     while ( !( SPSR & 0x80 ) );
     return call Spi.read();