VHDL频率计的设计

VHDL 频率计，可以最小频率是1HZ，最大由FPGA的芯片限制。可以准确测量方波频率。

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件          2  2006-09-18 11:50  ep1c12_11_freqtest\cmp_state.ini

     文件       1517  2006-08-15 08:58  ep1c12_11_freqtest\cnt10.vhd

     文件       5449  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（0）.cnf.cdb

     文件       2305  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（0）.cnf.hdb

     文件       1396  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（1）.cnf.cdb

     文件        925  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（1）.cnf.hdb

     文件       3141  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（2）.cnf.cdb

     文件       1393  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.（2）.cnf.hdb

     文件       2007  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.asm.qmsg

     文件         90  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cbx.xml

     文件      31539  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.cdb

     文件      11580  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.hdb

     文件        339  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.kpt

     文件          4  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.logdb

     文件      28659  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.rdb

     文件      26815  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp.tdb

     文件      41472  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.cmp0.ddb

     文件        137  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.db_info

     文件        161  2011-05-07 09:48  ep1c12_11_freqtest\db\freqtest.eco.cdb

     文件      41581  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.fit.qmsg

     文件       7161  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.hier_info

     文件       2036  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.hif

     文件       3852  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.lpc.html

     文件        506  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.lpc.rdb

     文件       3180  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.lpc.txt

     文件       9066  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.map.cdb

     文件      11017  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.map.hdb

     文件          4  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.map.logdb

     文件       6472  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.map.qmsg

     文件       6376  2011-04-27 00:20  ep1c12_11_freqtest\db\freqtest.pre_map.cdb

............此处省略56个文件信息