Requires MSPGCC and msp430-bsl.
-Assumes MSP430F161x by default. Call for others by
-mcu=msp430x2618 make -e
+Assumes MSP430F161x by default. Call for others by the following method,
+recognizing that 2618 support is a rather recent addition and only works
+in MSPGCC from CVS.
+
+export mcu=msp430x2618
+make -e