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本文介紹了串行時鐘芯片 DS1302的功能和工作原理,并給出 DS1302在灌溉控制器中與 AT89C51單片機的接口電路設(shè)計。DS1302具有體積小、與單片機接口簡單的特點,還可以利用DS1302的內(nèi)部?。遥粒蛯ΜF(xiàn)場數(shù)據(jù)進行保護,防止系統(tǒng)掉電后重要的數(shù)據(jù)丟失,使噴灌控制器的硬件設(shè)計簡化。
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