Logic Design Project

1
Logic Design Project

• Basic Electronic Clock
• u921846 ???
• u921846_at_oz.nthu.edu.tw
• http//micro.ee.nthu.edu.tw/treasure/ldl/index.ht
  ml

2
Basic Function

• Use four 7-segment displayers
• to display year, month, day, hour, minute,
• and second.
• Time modification and alarm must be
• supported.

3
Bonus Function

• Two time display mode 12/24 hours.
• To considerate leap years.
• A part of bonus function might not be added into
  the clock,
• depend on the situation during the
  process.

4
Logic Diagram Express
Leap Year Judge
Mode
Mode Selector Module
Bcd Coder
Time Counter
CLK
7-segment display
Time Modify
Time Input Button
Alarm Judge
LED
Alarm set
5
Input

• Mode
• Time display Hourminute ,Year , Monthdate
• 12/24 hours display
• Time modify mode
• Alarm set mode
• Clk
• Time input button
• Count up
• Count down

6
Output

• 7-segment display
• Display the Time according to the present Mode.
• LED
• Will all light up when the present time
  (Hourminute) and the alarm time are the same.

7
Plan Schedule