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Intro The Memory Protection Unit, or MPU for short, is an unloved child, although it is very important and helpful. The reason for the resentment lies in the nature of the matter, the MPU is not constructive, but uncovers software malfunction and prevents worse. It does not ensure that SW suddenly works, but rather the …
Intro Concurrency plays a central role in the booming programming language RUST. In C and C++ it is the responsibility of the designer to apply appropriate mechanisms to avoid the dreaded race conditions, even in small embedded bare metal projects. Disabling interrupts is commonly used to avoid these race conditions. The Cortex-M provides with Exclusive …
Intro Disabling and Enabling of interrupts is a common scenario in embedded SW. The Cortex-M offers suitable mechanisms for this, but the topic is not quite so trivial because of potentially occurring race conditions and therefore we take a deeper look at a process optimized for the Cortex-M. Scenario In a code segment, which can …
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