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STM32 interrupt priority management

2022-07-03 09:41:00 【two thousand and twenty-one point zero nine】

Interrupt priority management

First NVIC_Init() Set the grouping of the system , According to the grouping, it can be determined that there are several bits of preemption priority and response priority . In groups 2, There are two bits for preemption and corresponding , So each has its own 0-3,4 Status , according to 00、01、10、11 Coming soon 2^2=4.

And then according to NVIC_PriorityGroupConfig() Function to set the response priority and preemption priority of each interrupt .

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