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RISC&CISC&CMSIS
RISC:精简指令集(Reduced Instructions Set Computer)
CISC:复杂指令集(Complex Instructions Set Computer)
CMSIS:ARM Cortex 微控制器软件接口标准(Cortex Microcontroller Software Interface Standard)
NVIC:内嵌向量中断(Nested Vectored Interrupt Controller)