题目内容
If you want to disable higher priority interrupts when executing the current interrupt program, the application software will turn off CPU interrupts, or shield interrupts from higher level interrupt sources, and then turn on interrupts when interrupts return.
查看答案
搜索结果不匹配？点我反馈
更多问题
After the CPU responds to the interrupt, it must clear the corresponding interrupt flag bit with software in the interrupt service program to cancel the interrupt request.
The serial port data buffer SBUF is a special register which can be directly addressed.
To allow external interrupt 0 interrupt, set EA bit and ex0 bit of interrupt allow register ie to 1.答案:
The meaning of instruction JNB TF0, LP is: if the timer T0 is not full, turn to LP.
微信支付 
支付宝支付