資源簡介
1.在圖形編輯器中設計一個3位的十進制加法計數器，以xxxcnt3.gdf命名保存(‘xxx’為您的姓名拼音首字母)。器件設定為EPM7128LC84-6。要求能夠從0計數到999。從999歸零時產生一個高電平的報警信號。進行波形仿真，驗證功能正確。分析此電路的最高計數頻率。
2.修改這個計數器的歸零值，使其計數到119就歸零，增加異步清零功能，加法計數/減法計數控制功能。
3.在文本編輯器中使用VHDL語言設計一個D觸發器,具有反向輸出端。命名為xxxdff.vhd，仿真驗證。
代碼片段和文件信息
?屬性????????????大小?????日期????時間???名稱
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?????文件???????5947??2009-11-01?17:53??shiyan2\bqycnt3-1（1）.cnf
?????文件??????16549??2009-11-01?18:24??shiyan2\bqycnt3-1.acf
?????文件???????9569??2009-11-01?18:06??shiyan2\bqycnt3-1.cnf
?????文件???????5715??2009-11-01?18:06??shiyan2\bqycnt3-1.fit
?????文件???????6688??2009-11-01?18:06??shiyan2\bqycnt3-1.gdf
?????文件???????1754??2009-11-09?16:11??shiyan2\bqycnt3-1.hif
?????文件??????36790??2009-11-01?18:06??shiyan2\bqycnt3-1.jam
?????文件??????32591??2009-11-01?18:06??shiyan2\bqycnt3-1.jbc
?????文件????????204??2009-11-01?18:06??shiyan2\bqycnt3-1.mmf
?????文件???????4178??2009-11-01?18:06??shiyan2\bqycnt3-1.ndb
?????文件???????5174??2009-11-01?18:06??shiyan2\bqycnt3-1.pin
?????文件???????7962??2009-11-01?18:06??shiyan2\bqycnt3-1.pof
?????文件??????32574??2009-11-01?18:06??shiyan2\bqycnt3-1.rpt
?????文件??????17548??2009-11-01?18:14??shiyan2\bqycnt3-1.scf
?????文件??????43444??2009-11-01?18:06??shiyan2\bqycnt3-1.snf
?????文件???????5947??2009-11-01?18:24??shiyan2\bqycnt3-2（1）.cnf
?????文件??????16585??2009-11-09?16:20??shiyan2\bqycnt3-2.acf
?????文件???????9833??2009-11-09?16:15??shiyan2\bqycnt3-2.cnf
?????文件???????6325??2009-11-09?16:15??shiyan2\bqycnt3-2.fit
?????文件???????7357??2009-11-09?16:15??shiyan2\bqycnt3-2.gdf
?????文件???????1751??2009-11-09?22:43??shiyan2\bqycnt3-2.hif
?????文件??????37395??2009-11-09?16:15??shiyan2\bqycnt3-2.jam
?????文件??????33031??2009-11-09?16:15??shiyan2\bqycnt3-2.jbc
?????文件????????204??2009-11-09?16:15??shiyan2\bqycnt3-2.mmf
?????文件???????4419??2009-11-09?16:15??shiyan2\bqycnt3-2.ndb
?????文件???????5174??2009-11-09?16:15??shiyan2\bqycnt3-2.pin
?????文件???????7962??2009-11-09?16:15??shiyan2\bqycnt3-2.pof
?????文件??????36185??2009-11-09?16:15??shiyan2\bqycnt3-2.rpt
?????文件??????33627??2009-11-09?16:20??shiyan2\bqycnt3-2.scf
?????文件??????48356??2009-11-09?16:15??shiyan2\bqycnt3-2.snf
............此處省略37個文件信息
-----------?---------??----------?-----??----
?????文件???????5947??2009-11-01?17:53??shiyan2\bqycnt3-1（1）.cnf
?????文件??????16549??2009-11-01?18:24??shiyan2\bqycnt3-1.acf
?????文件???????9569??2009-11-01?18:06??shiyan2\bqycnt3-1.cnf
?????文件???????5715??2009-11-01?18:06??shiyan2\bqycnt3-1.fit
?????文件???????6688??2009-11-01?18:06??shiyan2\bqycnt3-1.gdf
?????文件???????1754??2009-11-09?16:11??shiyan2\bqycnt3-1.hif
?????文件??????36790??2009-11-01?18:06??shiyan2\bqycnt3-1.jam
?????文件??????32591??2009-11-01?18:06??shiyan2\bqycnt3-1.jbc
?????文件????????204??2009-11-01?18:06??shiyan2\bqycnt3-1.mmf
?????文件???????4178??2009-11-01?18:06??shiyan2\bqycnt3-1.ndb
?????文件???????5174??2009-11-01?18:06??shiyan2\bqycnt3-1.pin
?????文件???????7962??2009-11-01?18:06??shiyan2\bqycnt3-1.pof
?????文件??????32574??2009-11-01?18:06??shiyan2\bqycnt3-1.rpt
?????文件??????17548??2009-11-01?18:14??shiyan2\bqycnt3-1.scf
?????文件??????43444??2009-11-01?18:06??shiyan2\bqycnt3-1.snf
?????文件???????5947??2009-11-01?18:24??shiyan2\bqycnt3-2（1）.cnf
?????文件??????16585??2009-11-09?16:20??shiyan2\bqycnt3-2.acf
?????文件???????9833??2009-11-09?16:15??shiyan2\bqycnt3-2.cnf
?????文件???????6325??2009-11-09?16:15??shiyan2\bqycnt3-2.fit
?????文件???????7357??2009-11-09?16:15??shiyan2\bqycnt3-2.gdf
?????文件???????1751??2009-11-09?22:43??shiyan2\bqycnt3-2.hif
?????文件??????37395??2009-11-09?16:15??shiyan2\bqycnt3-2.jam
?????文件??????33031??2009-11-09?16:15??shiyan2\bqycnt3-2.jbc
?????文件????????204??2009-11-09?16:15??shiyan2\bqycnt3-2.mmf
?????文件???????4419??2009-11-09?16:15??shiyan2\bqycnt3-2.ndb
?????文件???????5174??2009-11-09?16:15??shiyan2\bqycnt3-2.pin
?????文件???????7962??2009-11-09?16:15??shiyan2\bqycnt3-2.pof
?????文件??????36185??2009-11-09?16:15??shiyan2\bqycnt3-2.rpt
?????文件??????33627??2009-11-09?16:20??shiyan2\bqycnt3-2.scf
?????文件??????48356??2009-11-09?16:15??shiyan2\bqycnt3-2.snf
............此處省略37個文件信息
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