sp306_led_top.pcf

本实例是学习fpga的入门程序 希望大家喜欢

//! **************************************************************************
// Written by: Map J.30 on Tue May 05 14:05:13 2009
//! **************************************************************************

SCHEMATIC START;
COMP "clk" LOCATE = SITE "P76" LEVEL 1;
COMP "hc_cp" LOCATE = SITE "P97" LEVEL 1;
COMP "hc_si" LOCATE = SITE "P96" LEVEL 1;
COMP "sw1" LOCATE = SITE "P78" LEVEL 1;
COMP "rst_n" LOCATE = SITE "P83" LEVEL 1;
NET "clk_BUFGP/IBUFG" BEL "clk_BUFGP/BUFG.GCLKMUX" USELOCALCONNECT;
TIMEGRP clk = BEL "hc_led_inst/hc_cp" BEL "hc_led_inst/cnt_tx_0" BEL
        "hc_led_inst/cnt_tx_1" BEL "hc_led_inst/cnt_tx_2" BEL
        "hc_led_inst/cnt_tx_3" BEL "hc_led_inst/cnt_tx_4" BEL
        "hc_led_inst/cnt_tx_5" BEL "hc_led_inst/cnt16x_0" BEL
        "hc_led_inst/cnt16x_1" BEL "hc_led_inst/cnt16x_2" BEL
        "hc_led_inst/cnt16x_3" BEL "hc_led_inst/cnt16x_4" BEL
        "hc_led_inst/cnt16x_5" BEL "hc_led_inst/cnt16x_6" BEL
        "hc_led_inst/cnt16x_7" BEL "hc_led_inst/cnt16x_8" BEL
        "hc_led_inst/cnt16x_9" BEL "hc_led_inst/cnt16x_10" BEL
        "hc_led_inst/cnt16x_11" BEL "hc_led_inst/cnt16x_12" BEL
        "hc_led_inst/cnt16x_13" BEL "hc_led_inst/cnt16x_14" BEL
        "hc_led_inst/cnt16x_15" BEL "counter_inst/cnt_0" BEL
        "counter_inst/cnt_1" BEL "counter_inst/cnt_2" BEL "counter_inst/cnt_3"
        BEL "counter_inst/cnt_4" BEL "counter_inst/cnt_5" BEL
        "counter_inst/cnt_6" BEL "counter_inst/cnt_7" BEL "counter_inst/cnt_8"
        BEL "counter_inst/cnt_9" BEL "counter_inst/cnt_10" BEL
        "counter_inst/cnt_11" BEL "counter_inst/cnt_12" BEL
        "counter_inst/cnt_13" BEL "counter_inst/cnt_14" BEL
        "counter_inst/cnt_15" BEL "counter_inst/cnt_16" BEL
        "counter_inst/cnt_17" BEL "counter_inst/cnt_18" BEL
        "counter_inst/cnt_19" BEL "counter_inst/cnt_20" BEL
        "counter_inst/cnt_21" BEL "counter_inst/cnt_22" BEL
        "counter_inst/cnt_23" BEL "counter_inst/cnt_24" BEL
        "counter_inst/cnt_25" BEL "counter_inst/cnt_26" BEL
        "counter_inst/cnt_27" BEL "counter_inst/cnt_28" BEL
        "counter_inst/cnt_29" BEL "counter_inst/cnt_30" BEL
        "counter_inst/cnt_31" BEL "counter_inst/cnt_32" BEL
        "counter_inst/cnt_33" BEL "counter_inst/cnt_34" BEL
        "counter_inst/cnt_35" BEL "counter_inst/cnt_36" BEL
        "counter_inst/cnt_37" BEL "hc_led_inst/en_temp_0" BEL
        "hc_led_inst/en_temp_1";
TS_clk = PERIOD TIMEGRP "clk" 20 ns HIGH 50%;
SCHEMATIC END;