X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=tos%2Fchips%2Fmsp430%2Fusci%2FHplMsp430UsciInt1P.nc;h=5fa0291ca8255daaa7a2f7fbc11c28afb78b1862;hb=c4a3d36739346681572c7eda2a6243a8634474db;hp=c083cdb9a637d7dfa4847b11cc78cdfd79713c06;hpb=797840a969fb20055dbf95c36e557d67533a8636;p=tinyos-2.x.git

diff --git a/tos/chips/msp430/usci/HplMsp430UsciInt1P.nc b/tos/chips/msp430/usci/HplMsp430UsciInt1P.nc
index c083cdb9..5fa0291c 100644
--- a/tos/chips/msp430/usci/HplMsp430UsciInt1P.nc
+++ b/tos/chips/msp430/usci/HplMsp430UsciInt1P.nc
@@ -55,8 +55,9 @@ implementation
   MSP430REG_NORACE(UCB1RXBUF);
 #endif
 
-  /* This USCI_Ax and USCI_Bx interrupt vector signals receive events for UART
-   * and SPI modes, and status events for I2C modes.  Only Bx can do I2C.
+  /* This interrupt vector signals receive events.  USCI_A1 can receive events
+   * for UART and SPI modes, while USCI_B1 can receive events for I2C and SPI
+   * modes.
    */
   TOSH_SIGNAL(USCIAB1RX_VECTOR) {
     if (READ_FLAG(UC1IFG, UCA1RXIFG)) {
@@ -80,8 +81,9 @@ implementation
       signal IntB.i2cStop();
   }
   
-  /* This USCI_Ax and USCI_Bx interrupt vector signals transmit events for UART
-   * and SPI modes, and rx/tx events for I2C modes.  Only Bx can do I2C.
+  /* This interrupt vector signals transmit events.  USCI_A1 can receive events
+   * for UART and SPI modes, while USCI_B1 can receive events for I2C and SPI
+   * modes.
    */
   TOSH_SIGNAL(USCIAB1TX_VECTOR) {
     if (READ_FLAG(UC1IFG, UCB1RXIFG))
@@ -101,6 +103,7 @@ implementation
   default async event void IntA.i2cStart() {}
   default async event void IntA.i2cStop() {}
 
+  /* UART is not available for B devices, so IntB.brk() is never sitnalled */
   default async event void IntB.brk() {}
   default async event void IntB.rx(uint8_t byte) {}
   default async event void IntB.tx() {}