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This application report covers software techniques and topics of interest to all MSP430 programmers. The first part of the document discusses the MSP430 standard interrupt-based code flow model, recommended for the vast majority of applications. The next part discusses a handful of techniques that should be considered by any developer that sets out to develop an MSP430 application. Using these methods can greatly reduce debug time and/or provide additional robustness in the field. They include initialization procedures, validation of supply rails before performing voltage-sensitive operations, and use of special functions. Code examples are provided.