frequency_vhd.sdo

这个程序是基于等精度测频原理的频率计

      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[2\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT datab (370:370:370) (372:372:372))
        (PORT datac (1691:1691:1691) (1458:1458:1458))
        (IOPATH datab regin (458:458:458) (458:458:458))
        (IOPATH cin regin (578:578:578) (578:578:578))
        (IOPATH datab cout0 (344:344:344) (344:344:344))
        (IOPATH datab cout1 (341:341:341) (341:341:341))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[2\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1791:1791:1791) (1804:1804:1804))
        (PORT datac (1776:1776:1776) (1543:1543:1543))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2169:2169:2169) (2148:2148:2148))
        (PORT ena (1953:1953:1953) (1880:1880:1880))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[3\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT datab (386:386:386) (388:388:388))
        (PORT datac (1690:1690:1690) (1457:1457:1457))
        (IOPATH datab regin (458:458:458) (458:458:458))
        (IOPATH cin regin (578:578:578) (578:578:578))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH datab cout0 (344:344:344) (344:344:344))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH datab cout1 (341:341:341) (341:341:341))
        (IOPATH cin1 cout1 (60:60:60) (60:60:60))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[3\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1791:1791:1791) (1804:1804:1804))
        (PORT datac (1775:1775:1775) (1542:1542:1542))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2169:2169:2169) (2148:2148:2148))
        (PORT ena (1953:1953:1953) (1880:1880:1880))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[4\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT dataa (400:400:400) (398:398:398))
        (PORT datac (1689:1689:1689) (1455:1455:1455))
        (IOPATH dataa regin (539:539:539) (539:539:539))
        (IOPATH cin regin (578:578:578) (578:578:578))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH dataa cout0 (443:443:443) (443:443:443))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH dataa cout1 (451:451:451) (451:451:451))
        (IOPATH cin1 cout1 (60:60:60) (60:60:60))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[4\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1791:1791:1791) (1804:1804:1804))
        (PORT datac (1774:1774:1774) (1540:1540:1540))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2169:2169:2169) (2148:2148:2148))
        (PORT ena (1953:1953:1953) (1880:1880:1880))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[5\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT dataa (415:415:415) (410:410:410))
        (PORT datac (1170:1170:1170) (1160:1160:1160))
        (IOPATH dataa regin (539:539:539) (539:539:539))
        (IOPATH cin regin (578:578:578) (578:578:578))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH dataa cout0 (443:443:443) (443:443:443))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH dataa cout1 (451:451:451) (451:451:451))
        (IOPATH cin1 cout1 (60:60:60) (60:60:60))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[5\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1791:1791:1791) (1804:1804:1804))
        (PORT datac (1255:1255:1255) (1245:1245:1245))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2169:2169:2169) (2148:2148:2148))
        (PORT ena (1953:1953:1953) (1880:1880:1880))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[6\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT datab (395:395:395) (396:396:396))
        (PORT datac (1689:1689:1689) (1454:1454:1454))
        (IOPATH datab regin (458:458:458) (458:458:458))
        (IOPATH cin regin (578:578:578) (578:578:578))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH datab cout (502:502:502) (502:502:502))
        (IOPATH cin cout (142:142:142) (142:142:142))
        (IOPATH cin0 cout (214:214:214) (214:214:214))
        (IOPATH cin1 cout (198:198:198) (198:198:198))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[6\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1791:1791:1791) (1804:1804:1804))
        (PORT datac (1774:1774:1774) (1539:1539:1539))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2169:2169:2169) (2148:2148:2148))
        (PORT ena (1953:1953:1953) (1880:1880:1880))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[7\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT datab (382:382:382) (381:381:381))
        (PORT datac (1646:1646:1646) (1423:1423:1423))
        (IOPATH datab regin (458:458:458) (458:458:458))
        (IOPATH cin regin (598:598:598) (598:598:598))
        (IOPATH datab cout0 (344:344:344) (344:344:344))
        (IOPATH datab cout1 (341:341:341) (341:341:341))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[7\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1182:1182:1182) (1209:1209:1209))
        (PORT datac (1731:1731:1731) (1508:1508:1508))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2163:2163:2163) (2142:2142:2142))
        (PORT ena (1588:1588:1588) (1557:1557:1557))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[8\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT datab (377:377:377) (378:378:378))
        (PORT datac (1645:1645:1645) (1422:1422:1422))
        (IOPATH datab regin (458:458:458) (458:458:458))
        (IOPATH cin regin (598:598:598) (598:598:598))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH datab cout0 (344:344:344) (344:344:344))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH datab cout1 (341:341:341) (341:341:341))
        (IOPATH cin1 cout1 (60:60:60) (60:60:60))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[8\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1182:1182:1182) (1209:1209:1209))
        (PORT datac (1730:1730:1730) (1507:1507:1507))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2163:2163:2163) (2142:2142:2142))
        (PORT ena (1588:1588:1588) (1557:1557:1557))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\LessThan\~1527_I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT dataa (996:996:996) (974:974:974))
        (PORT datab (993:993:993) (960:960:960))
        (PORT datad (408:408:408) (406:406:406))
        (IOPATH dataa combout (366:366:366) (366:366:366))
        (IOPATH datab combout (280:280:280) (280:280:280))
        (IOPATH datad combout (75:75:75) (75:75:75))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[9\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT dataa (405:405:405) (399:399:399))
        (PORT datac (852:852:852) (812:812:812))
        (IOPATH dataa regin (539:539:539) (539:539:539))
        (IOPATH cin regin (598:598:598) (598:598:598))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH dataa cout0 (443:443:443) (443:443:443))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH dataa cout1 (451:451:451) (451:451:451))
        (IOPATH cin1 cout1 (60:60:60) (60:60:60))
      )
    )
  )
  (CELL
    (CELLTYPE "stratix_lcell_register")
    (INSTANCE \\q2\[9\]\~I\\.lereg)
    (DELAY
      (ABSOLUTE
        (PORT sload (1182:1182:1182) (1209:1209:1209))
        (PORT datac (937:937:937) (897:897:897))
        (PORT aclr (645:645:645) (645:645:645))
        (PORT clk (2163:2163:2163) (2142:2142:2142))
        (PORT ena (1588:1588:1588) (1557:1557:1557))
        (IOPATH (posedge clk) regout (156:156:156) (156:156:156))
        (IOPATH (posedge aclr) regout (176:176:176) (176:176:176))
      )
    )
    (TIMINGCHECK
      (SETUP datac (posedge clk) (10:10:10))
      (SETUP datain (posedge clk) (10:10:10))
      (SETUP sload (posedge clk) (10:10:10))
      (SETUP ena (posedge clk) (10:10:10))
      (HOLD datac (posedge clk) (100:100:100))
      (HOLD datain (posedge clk) (100:100:100))
      (HOLD sload (posedge clk) (100:100:100))
      (HOLD ena (posedge clk) (100:100:100))
    )
  )
  (CELL
    (CELLTYPE "stratix_asynch_lcell")
    (INSTANCE \\q2\[10\]\~I\\.lecomb)
    (DELAY
      (ABSOLUTE
        (PORT dataa (402:402:402) (399:399:399))
        (PORT datac (853:853:853) (813:813:813))
        (IOPATH dataa regin (539:539:539) (539:539:539))
        (IOPATH cin regin (598:598:598) (598:598:598))
        (IOPATH cin0 regin (489:489:489) (489:489:489))
        (IOPATH cin1 regin (497:497:497) (497:497:497))
        (IOPATH dataa cout0 (443:443:443) (443:443:443))
        (IOPATH cin0 cout0 (58:58:58) (58:58:58))
        (IOPATH dataa cout1 (451:451:451) (451:451:451))
        (IO