2.系統(tǒng)程序
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四、小結(jié)
本文所設(shè)計(jì)的基于單片機(jī)的雙色無(wú)表針鐘表,在同一時(shí)間僅保持兩個(gè)LED 燈亮,耗電極低,更節(jié)能,雙色顯示更易辨認(rèn)。
參考文獻(xiàn):
[1].AT89S51 datasheethttp://www.dzsc.com/datasheet/AT89S51+_970858.html.
[2].74LS154datasheethttp://www.dzsc.com/datasheet/74LS154_1133238.html.
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