can_top.syr

很好的几个FPGA工程设计实例，Verilog编写

    Found 6-bit up counter for signal <rd_info_pointer>.
    Found 6-bit register for signal <rd_pointer>.
    Found 6-bit adder for signal <read_address>.
    Found 6-bit up counter for signal <wr_info_pointer>.
    Found 6-bit up counter for signal <wr_pointer>.
    Found 1-bit register for signal <wr_q>.
    Found 7 1-bit 2-to-1 multiplexers.
    Summary:
	inferred   5 Counter(s).
	inferred  15 D-type flip-flop(s).
	inferred   5 Adder/Subtracter(s).
	inferred   7 Multiplexer(s).
Unit <can_fifo> synthesized.


Synthesizing Unit <can_acf>.
    Related source file is can_acf.v.
    Found 1-bit register for signal <id_ok>.
    Found 1-bit xor2 for signal <$n0102> created at line 293.
    Found 1-bit xor2 for signal <$n0103> created at line 293.
    Found 1-bit xor2 for signal <$n0104> created at line 293.
    Found 1-bit xor2 for signal <$n0105> created at line 293.
    Found 1-bit xor2 for signal <$n0106> created at line 293.
    Found 1-bit xor2 for signal <$n0107> created at line 293.
    Found 1-bit xor2 for signal <$n0108> created at line 293.
    Found 1-bit xor2 for signal <$n0109> created at line 293.
    Found 1-bit xor2 for signal <$n0110> created at line 293.
    Found 1-bit xor2 for signal <$n0111> created at line 293.
    Found 1-bit xor2 for signal <$n0112> created at line 293.
    Found 1-bit xor2 for signal <$n0113> created at line 293.
    Found 1-bit xor2 for signal <$n0114> created at line 293.
    Found 1-bit xor2 for signal <$n0115> created at line 293.
    Found 1-bit xor2 for signal <$n0116> created at line 293.
    Found 1-bit xor2 for signal <$n0117> created at line 293.
    Found 1-bit xor2 for signal <$n0118> created at line 293.
    Found 1-bit xor2 for signal <$n0119> created at line 293.
    Found 1-bit xor2 for signal <$n0120> created at line 293.
    Found 1-bit xor2 for signal <$n0121> created at line 293.
    Found 1-bit xor2 for signal <$n0122> created at line 293.
    Found 1-bit xor2 for signal <$n0123> created at line 293.
    Found 1-bit xor2 for signal <$n0124> created at line 293.
    Found 1-bit xor2 for signal <$n0125> created at line 293.
    Found 1-bit xor2 for signal <$n0126> created at line 293.
    Found 1-bit xor2 for signal <$n0127> created at line 293.
    Found 1-bit xor2 for signal <$n0128> created at line 293.
    Found 1-bit xor2 for signal <$n0129> created at line 293.
    Found 1-bit xor2 for signal <$n0130> created at line 293.
    Found 1-bit xor2 for signal <$n0131> created at line 293.
    Found 1-bit xor2 for signal <$n0132> created at line 293.
    Found 1-bit xor2 for signal <$n0133> created at line 293.
    Found 1-bit xor2 for signal <$n0134> created at line 250.
    Found 1-bit xor2 for signal <$n0135> created at line 250.
    Found 1-bit xor2 for signal <$n0136> created at line 250.
    Found 1-bit xor2 for signal <$n0137> created at line 250.
    Found 1-bit xor2 for signal <$n0138> created at line 250.
    Found 1-bit xor2 for signal <$n0139> created at line 250.
    Found 1-bit xor2 for signal <$n0140> created at line 250.
    Found 1-bit xor2 for signal <$n0141> created at line 250.
    Found 1-bit xor2 for signal <$n0142> created at line 250.
    Found 1-bit xor2 for signal <$n0143> created at line 250.
    Found 1-bit xor2 for signal <$n0144> created at line 250.
    Found 1-bit xor2 for signal <$n0145> created at line 250.
    Found 1-bit xor2 for signal <$n0146> created at line 250.
    Found 1-bit xor2 for signal <$n0147> created at line 250.
    Found 1-bit xor2 for signal <$n0148> created at line 250.
    Found 1-bit xor2 for signal <$n0149> created at line 250.
    Found 1-bit xor2 for signal <$n0150> created at line 250.
    Found 1-bit xor2 for signal <$n0151> created at line 250.
    Found 1-bit xor2 for signal <$n0152> created at line 250.
    Found 1-bit xor2 for signal <$n0153> created at line 250.
    Found 1-bit xor2 for signal <$n0154> created at line 250.
    Found 1-bit xor2 for signal <$n0155> created at line 250.
    Found 1-bit xor2 for signal <$n0156> created at line 250.
    Found 1-bit xor2 for signal <$n0157> created at line 250.
    Found 1-bit xor2 for signal <$n0158> created at line 250.
    Found 1-bit xor2 for signal <$n0159> created at line 250.
    Found 1-bit xor2 for signal <$n0160> created at line 250.
    Found 1-bit xor2 for signal <$n0161> created at line 250.
    Found 1-bit xor2 for signal <$n0162> created at line 250.
    Found 1-bit xor2 for signal <$n0163> created at line 250.
    Found 1-bit xor2 for signal <$n0164> created at line 250.
    Found 1-bit xor2 for signal <$n0165> created at line 250.
    Found 1-bit xor2 for signal <$n0166> created at line 212.
    Found 1-bit xor2 for signal <$n0167> created at line 212.
    Found 1-bit xor2 for signal <$n0168> created at line 212.
    Found 1-bit xor2 for signal <$n0169> created at line 212.
    Found 1-bit xor2 for signal <$n0170> created at line 212.
    Found 1-bit xor2 for signal <$n0171> created at line 212.
    Found 1-bit xor2 for signal <$n0172> created at line 212.
    Found 1-bit xor2 for signal <$n0173> created at line 212.
    Found 1-bit xor2 for signal <$n0174> created at line 212.
    Found 1-bit xor2 for signal <$n0175> created at line 212.
    Found 1-bit xor2 for signal <$n0176> created at line 212.
    Found 1-bit xor2 for signal <$n0177> created at line 212.
    Found 1-bit xor2 for signal <$n0178> created at line 212.
    Found 1-bit xor2 for signal <$n0179> created at line 212.
    Found 1-bit xor2 for signal <$n0180> created at line 176.
    Found 1-bit xor2 for signal <$n0181> created at line 176.
    Found 1-bit xor2 for signal <$n0182> created at line 176.
    Found 1-bit xor2 for signal <$n0183> created at line 176.
    Found 1-bit xor2 for signal <$n0184> created at line 176.
    Found 1-bit xor2 for signal <$n0185> created at line 176.
    Found 1-bit xor2 for signal <$n0186> created at line 176.
    Found 1-bit xor2 for signal <$n0187> created at line 176.
    Found 1-bit xor2 for signal <$n0188> created at line 176.
    Found 1-bit xor2 for signal <$n0189> created at line 176.
    Found 1-bit xor2 for signal <$n0190> created at line 176.
    Found 1-bit xor2 for signal <$n0191> created at line 176.
    Found 1-bit xor2 for signal <$n0192> created at line 176.
    Found 1-bit xor2 for signal <$n0193> created at line 176.
    Found 1-bit xor2 for signal <$n0194> created at line 176.
    Found 1-bit xor2 for signal <$n0195> created at line 176.
    Summary:
	inferred   1 D-type flip-flop(s).
Unit <can_acf> synthesized.


Synthesizing Unit <can_crc>.
    Related source file is can_crc.v.
    Found 15-bit register for signal <crc>.
    Found 1-bit xor2 for signal <crc_next>.
    Found 15 1-bit 2-to-1 multiplexers.
    Summary:
	inferred  15 D-type flip-flop(s).
	inferred  15 Multiplexer(s).
Unit <can_crc> synthesized.


Synthesizing Unit <can_register_2>.
    Related source file is can_register.v.
    Found 3-bit register for signal <data_out>.
    Summary:
	inferred   3 D-type flip-flop(s).
Unit <can_register_2> synthesized.


Synthesizing Unit <can_register_1>.
    Related source file is can_register.v.
    Found 1-bit register for signal <data_out<0>>.
    Summary:
	inferred   1 D-type flip-flop(s).
Unit <can_register_1> synthesized.


Synthesizing Unit <can_register_asyn_2>.
    Related source file is can_register_asyn.v.
    Found 8-bit register for signal <data_out>.
Unit <can_register_asyn_2> synthesized.


Synthesizing Unit <can_register>.
    Related source file is can_register.v.
    Found 8-bit register for signal <data_out>.
    Summary:
	inferred   8 D-type flip-flop(s).
Unit <can_register> synthesized.


Synthesizing Unit <can_register_asyn_syn_2>.
    Related source file is can_register_asyn_syn.v.
    Found 2-bit register for signal <data_out>.
    Summary:
	inferred   2 D-type flip-flop(s).
Unit <can_register_asyn_syn_2> synthesized.


Synthesizing Unit <can_register_asyn_syn_1>.
    Related source file is can_register_asyn_syn.v.
    Found 1-bit register for signal <data_out<0>>.
    Summary:
	inferred   1 D-type flip-flop(s).
Unit <can_register_asyn_syn_1> synthesized.


Synthesizing Unit <can_register_asyn_1>.
    Related source file is can_register_asyn.v.
    Found 3-bit register for signal <data_out>.
    Summary:
	inferred   3 D-type flip-flop(s).
Unit <can_register_asyn_1> synthesized.


Synthesizing Unit <can_register_asyn>.
    Related source file is can_register_asyn.v.
    Found 4-bit register for signal <data_out>.
    Summary:
	inferred   4 D-type flip-flop(s).
Unit <can_register_asyn> synthesized.


Synthesizing Unit <can_register_asyn_syn>.
    Related source file is can_register_asyn_syn.v.
    Found 1-bit register for signal <data_out<0>>.
    Summary:
	inferred   1 D-type flip-flop(s).
Unit <can_register_asyn_syn> synthesized.


Synthesizing Unit <can_bsp>.
    Related source file is can_bsp.v.
WARNING:Xst:646 - Signal <bit_stuff_cnt_tx_en> is assigned but never used.
    Found 8-bit register for signal <error_capture_code>.
    Found 5-bit up counter for signal <arbitration_lost_capture>.
    Found 9-bit register for signal <rx_err_cnt>.
    Found 1-bit register for signal <transmitting>.
    Found 1-bit register for signal <rx_idle>.
    Found 1-bit register for signal <need_to_tx>.
    Found 1-bit register for signal <tx>.
    Found 1-bit register for signal <node_error_passive>.
    Found 1-bit register for signal <node_bus_off>.
    Found 9-bit register for signal <tx_err_cnt>.
    Found 4-bit subtractor for signal <$COND_6>.
    Found 9-bit subtractor for signal <$n0000> created at line 1612.
    Found 9-bit subtractor for signal <$n0001> created at line 1612.
    Found 8-bit 8-to-1 multiplexer for signal <$n0004> created at line 1314.
    Found 1-bit 64-to-1 multiplexer for signal <$n0005> created at line 1586.
    Found 1-bit 16-to-1 multiplexer for signal <$n0006> created at line 1588.
    Found 1-bit 39-to-1 multiplexer for signal <$n0007> created at line 1594.
    Found 1-bit 19-to-1 multiplexer for signal <$n0008> created at line 1596.
    Found 1-bit 64-to-1 multiplexer for signal <$n0009> created at line 1602.
    Found 1-bit 19-to-1 multiplexer for signal <$n0010> created at line 1608.
    Found 6-bit adder for signal <$n0156> created at line 1833.
    Found 6-bit adder for signal <$n0157> created at line 1858.
    Found 9-bit addsub for signal <$n0158>.
    Found 4-bit comparator less for signal <$n0163> created at line 1230.
    Found 9-bit comparator greater for signal <$n0203> created at line 1820.
    Found 6-bit comparator greater for signal <$n0214> created at line 1978.
    Found 6-bit comparator greater for signal <$n0215> created at line 1977.
    Found 6-bit comparator less for signal <$n0216> created at line 1975.
    Found 9-bit comparator equal for signal <$n0219> created at line 1612.
    Found 9-bit comparator equal for signal <$n0220> created at line 1612.
    Found 4-bit adder for signal <$n0224> created at line 1231.
    Found 4-bit comparator equal for signal <$n0225> created at line 1231.
    Found 4-bit subtractor for signal <$n0229> created at line 1230.
    Found 4-bit comparator less for signal <$n0235> created at line 1173.
    Found 4-bit comparator less for signal <$n0236> created at line 1172.
    Found 3-bit comparator less for signal <$n0237> created at line 1093.
    Found 3-bit comparator less for signal <$n0238> created at line 1093.
    Found 3-bit comparator less for signal <$n0239> created at line 1061.
    Found 6-bit comparator less for signal <$n0243> created at line 605.
    Found 6-bit subtractor for signal <$n0247> created at line 593.
    Found 6-bit comparator equal for signal <$n0248> created at line 593.
    Found 3-bit comparator less for signal <$n0251> created at line 1428.
    Found 3-bit adder for signal <$n0260> created at line 980.
    Found 3-bit adder for signal <$n0261> created at line 1011.
    Found 15-bit comparator not equal for signal <$n0262> created at line 1054.
    Found 3-bit comparator less for signal <$n0263> created at line 1515.
    Found 3-bit comparator less for signal <$n0264> created at line 1522.
    Found 9-bit comparator greatequal for signal <$n0268> created at line 1825.
    Found 9-bit comparator lessequal for signal <$n0269> created at line 1818.
    Found 9-bit comparator greater for signal <$n0270> created at line 1818.
    Found 9-bit comparator greater for signal <$n0271> created at line 1850.
    Found 9-bit subtractor for signal <$n0272> created at line 1851.
    Found 9-bit comparator greatequal for signal <$n0273> created at line 1883.
    Found 9-bit comparator greatequal for signal <$n0274> created at line 1883.
    Found 9-bit comparator less for signal <$n0275> created at line 1881.
    Found 9-bit comparator less for signal <$n0276> created at line 1881.
    Found 9-bit comparator greatequal for signal <$n0277> created at line 1897.
    Found 8-bit comparator less for signal <$n0281> created at line 1895.
    Found 9-bit comparator greatequal for signal <$n0283> created at line 1955.
    Found 9-bit comparator greatequal for signal <$n0284> created at line 1955.
    Found 9-bit comparator greatequal for signal <$n0285> created at line 1955.
    Found 9-bit comparator greatequal for signal <$n0286> created at line 1955.
    Found 3-bit adder for signal <$n0287> created at line 1431.
    Found 4-bit comparator less for signal <$n0288> created at line 1911.
    Found 4-bit adder for signal <$n0289> created at line 1912.
    Found 1-bit xor2 for signal <$n0327> created at line 1024.
    Found 1-bit xor2 for signal <$n0333> created at line 623.
    Found 1-bit xor2 for signal <$n0383> created at line 1010.
    Found 1-bit register for signal <ack_err_latched>.
    Found 1-bit register for signal <arbitration_blocked>.
    Found 1-bit register for signal <arbitration_cnt_en>.
    Found 1-bit register for signal <arbitration_lost>.
    Found 1-bit register for signal <arbitration_lost_q>.