外部中断bug修复

Review Request #721 — Created May 11, 2020 and submitted — Latest diff uploaded

Information
taoqiwen
Yc3121
Reviewers
wangjingfan, wushengyan 
添加io中断清中断操作，达到边缘触发效果




 













 

 










   

    
    

    

    

    

    

   

  

 















     

    

   

  

  

   
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