MSP430 Connections

Basic MSP430 connections

As with any chip, connect every power and ground pair. Decouple each pair of supply pins with a 0.1uF capacitor (C1). These small value capacitors prevent electrical noise from running rampant in our circuit. The RST pin and resistor hold the MSP430 in a reset state until the supply is adequate for operation. The RST pin also resets the MSP430 if there is a brown-out, or unacceptable but temporary reduction in supply voltage. This pin gets a 47K ohm resistor (R1) to the power supply.