中断方式处理按键编程实践1~2

来源:互联网 发布:网络用语刚是什么意思 编辑:程序博客网 时间:2024/06/10 04:10

《朱老师物联网大讲堂》学习笔记

学习地址:www.zhulaoshi.org


相关数据手册资料,

When user clears interrupt pending, user must write 0 to all the VICADDRESS registers (VIC0ADDRESS,
VIC1ADDRESS, VIC2ADDRESS, and VIC3ADDRESS). 


Specifies(指定) the IRQ Status Register


A write of any value to this register clears the current interrupt.
A write must only be performed at the end of an interrupt service routine. 





0 0
原创粉丝点击