[Tinyos-2-commits] CVS: tinyos-2.x/tos/chips/msp430/usart Msp430UartP.nc, 1.4, 1.5

[Vlado Handziski]

Update of /cvsroot/tinyos/tinyos-2.x/tos/chips/msp430/usart
In directory sc8-pr-cvs10.sourceforge.net:/tmp/cvs-serv16667/chips/msp430/usart

Modified Files:
	Msp430UartP.nc 
Log Message:
- Fix UartByte to properly disable interrupts before busywaiting on the TX interrupt flag, and clear the flag and enable interrupts back afterwards, problem reported by David M. 

Index: Msp430UartP.nc
===================================================================
RCS file: /cvsroot/tinyos/tinyos-2.x/tos/chips/msp430/usart/Msp430UartP.nc,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** Msp430UartP.nc	12 Dec 2006 18:23:11 -0000	1.4
--- Msp430UartP.nc	10 Jul 2007 00:49:41 -0000	1.5
***************
*** 158,165 ****
    }
    
!   async command error_t UartByte.send( uint8_t data ) {
!     call Usart.tx( data );
!     while( !call Usart.isTxIntrPending() );
!     call Usart.clrTxIntr();
      return SUCCESS;
    }
--- 158,168 ----
    }
    
!     async command error_t UartByte.send( uint8_t data ) {
!       call Usart.clrTxIntr();
!       call Usart.disableTxIntr ();
!       call Usart.tx( data );
!       while( !call Usart.isTxIntrPending() );
!       call Usart.clrTxIntr();
!       call Usart.enableTxIntr();
      return SUCCESS;
    }