closeserial.m

matlab 在pid领域的新的应用。用matlab环境实现pid控制。

function closeserial
global b p i d p2 i2 d2 time2 quxian2 s;
aa=strcmp(get(s,'status'),'open')

if aa
   % s=serial('com1')
    fclose(s)
    delete(s)   
    clear s
end
shh=get(0,'ShowHiddenHandles');
set(0,'ShowHiddenHandles','on');
currFig=get(0,'CurrentFigure');
set(0,'ShowHiddenHandles',shh);
delete(currFig);