最近学习MDK 自带的RTOS，有个疑惑：
Forced Interrupts to force a timer interrupt when isr_ functions are used. If an isr_ function is called, the kernel forces the timer interrupt immediately after the interrupt ends. The forced timer interrupt activates the task scheduler. It is possible that a task has become ready. If this task has a higher priority than the currently running task, a task switch must occur.
这段话是说 在中断中调用了isr_ 开头的函数后，退出这个中断后会强制一个定时中断？
这个强制的定时中断是tick中断吗？ 然后进行任务切换？
我想不通的是：如果强制tick中断了，那不是时间片不准了？用户定时器时间也不准了？
刚开始看资料，望高手提点一下。 |
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