Description: Stopwatch logical structure is relatively simple, it mainly shows decoder, prescaler, decimal counter, alarm and six counter-band components. Throughout the stopwatch the most critical is how to get an accurate pulse 100Hz time, in addition, a whole also need a stopwatch start signal and a zero signal, in order to be able to start and stop at any time. Stopwatch six output shows that were hundredth of a second, one-tenth of seconds, seconds, 10 seconds, hours, very, so a total of six counters corresponding, 6 all counter-wide code for BCD output, making it easier for At the same time show decoder connections. When the time up to 60 minutes later, the buzzer sound of ringing 10.
- [dianziqin] - Organ, 8255 and 8253 have music, can pla
- [time] - VHDL language stopwatch program includes
- [weijiyuanli] - Compilation of procedures, including: tr
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数字秒表.doc
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