Nested Vector Interrupt Controller [NVIC]

Interrupt controller present on some ARM cores, such as the Cortex-M3.

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Tags: ARM, Processor

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Glossary: ARM

The only constant in life is change. This is especially true with software requirements. You can rage against change, or you can embrace it. I discovered in my career that embracing change and finding ways to construct designs to be “change tolerant” was much easier on my blood pressure. In addition, while change is constant, you can never fully anticipate what will change. This leads to the corollary principle: 80% of your code never changes, but the 20% that changes can come as a surprise. The simplest way, then, to address not knowing what code will need to be changed in the future is to start with the assumption that all of the code will change.