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 Post subject: 如何使得程式碼不被interrupt中斷?
PostPosted: Fri Feb 22, 2013 12:07 pm 
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Joined: Fri Mar 04, 2011 9:36 pm
Posts: 500
在programming時,
需要保護一段code,使得它不被中斷打斷(岔斷),
該怎麼做呢?

在C語言裡,並沒有避免中斷的語法,
中斷是硬體的行為。
要保護code不被中斷打擾,最簡單的方法是把GIE關掉。
等到這幾行code執行完之後,再把GIE打開。
(用mask把中斷關掉亦可)


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