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Single-chip electronic keyboard clock DS1302 parameter settings used in this work Atmel Corporation AT89S52 Singlechip and DS1302 clock chip, which AT89S52 Single-chip crystal oscillator with 12M drive DS1302 clock chip used 32.768K crystal driver to C Language Programming design is based on the design of a liquid crystal film with 1602 year, month, day, hour, minute, second, week clock. DS1302 using the keyboard to set the parameters, can be modified through the keyboard, week, date, single-chip microcomputer can also be key to reset the time, date reset to the original.
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