The clock timing principle circuit

Published:2011/5/17 22:52:00 Author:TaoXi | Keyword: clock, timing, principle circuit | From:SeekIC

Related components PDF download: AT89C2051A1015C1815 In the internal RAM of the single chip microcontroller, we need to set the display buffers, the hours, minutes and seconds values are took out from the display buffers, so we set four units as the display buffers in RAM, they are 7AH，7BH and 7CH. To make the circuit and the principle narrative more convenient, we don't display the second value, we realize the second binary by flashing score. So we have 4 bits LEDs to display the hour value and the minute value. Meanwhile all the clocks need to be calibrated. The program also needs to install the display code meter.



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