RM44L520: 全局中断

RM44L520怎样关闭开启全局中断，是哪条指令

Susan Yang：

您现在是怕中断被抢占？那您可以看一下 15.2.2 Interrupt Handling at the CPU

https://www.ti.com.cn/cn/lit/ug/spnu608a/spnu608a.pdf 

The ARM CPU provides two vectors for interrupt requests—fast interrupt requests (FIQs) and normal interrupt requests (IRQs). FIQs are higher priority than IRQs, and FIQ interrupts may interrupt IRQ interrupts.