This is what I read "10 days Singlechip Society" (郭天祥tutorial)/* this procedure is that I used 51 electronic networks, 298 yuan C51 learning board s single-chip debug control DS1303 clock chip testing, please use row p1 mouth line will link to a clock cz2 procedures, it can achieve power away (with button batteries), display and set the date when the minutes and seconds a week (8-bit digital tube).*/(Http://www.51dz.com/n.asp?id=12519

DS1303_.c

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