-//Use false P5REN for 1612.
-#ifdef __MSP430_HAS_PORT5__
-#ifndef __MSP430_HAS_PORT5_R__
-#warning "1xx, using fake P5REN for external pulling resistors."
-#define P5REN P5OUT
-#endif
+#include "config.h"
+
+#ifdef telosb
+//TelosB uses second serial port.
+#define serial_tx serial1_tx
+#define serial_rx serial1_rx
+#define setbaud setbaud1
+#define msp430_init_uart msp430_init_uart1
+#else
+//Other targets use first.
+#define serial_tx serial0_tx
+#define serial_rx serial0_rx
+#define setbaud setbaud0
+#define msp430_init_uart msp430_init_uart0