摘要
为了解决MCS-51系列单片机只能由IP寄存器设定两级优先级的问题 ,文中给出了利用软件对中断优先级进行扩展的方法 ,同时给出了高于两个优先级的多优先级软件扩展程序。
It is known to all that MCUof serial MCS-51can be set with a two-level priority through IP memoˉry.Yet IP memory cannot deal with the case when more than a two-level priority is needed.An expanding the method levels of interrupt priority by means of the software is provided,and the program is given.
出处
《国外电子元器件》
2003年第7期12-14,共3页
International Electronic Elements
