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StateMachineCOM
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Embedded Programming Lesson 20: Race Conditions
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A nice video about Brushless Motor Controller for PIC24 that is programmed with the QM modeling tool. The author used QM to organize his whole project, not just the state machines.
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This lesson finally explains how ARM Cortex-M handles interrupts and why interrupt handlers can be regular C functions on this CPU. Specifically, you will see how the designers of the chip have solved the problem with saving all the right CPU registers and returning from interrupt functions.
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This lesson delves deeper into interrupts. Today you will see how interrupts work in the MSP430 processor, which will help you to understand how ARM Cortex-M differs from other processors. Specifically, will see exactly how an interrupt service routine is entered and how it returns.
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