This function initializes a hardware interrupt with the kernel. This initialization enables the device driver to register an event and enable the interrupt.
2
步骤5。用户代码，中断使能。
Step 5. User specific code, enable interrupts.
3
如果在响应低优先级中断时高优先级中断使能，用户必须在低优先级中断响应程序中保存那些关键的寄存器值。
If high priority interrupts are not disabled during low priority interrupts, users must save the key registers in software during a low priority interrupt.
点击反馈