目 录
1.引言..............................................1
1.1 设计目的................................ .....1
1.2 设计要求............................ .........1
1.3 设计内容.............................. .......1
2.电路分析.................................... .......2
2.1 电路图.................................. .....2
2.2 电路分析................................ .....2
2.2.1 时钟脉冲发生器........................ .....2
2.2.2 计数器................................. ....3
2.2.3 锁存器......................................5
2.2.4 显示输出....................................6
3.设计步骤与心得..................................8
3.1 设备与原件...................................8
3.2 测试调整.....................................8
3.2.1 时钟脉冲发生器的测试................... ...8
3.2.2 计数器的测试...............................9
3.2.3 数码管的测试..............................10
3.2.4 电子秒表的整体测试........................11
3.2.5 电子秒表准确的测试........................11
4.参考文献...........................................12
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