finished_ucf.txt

如何使用ISE和FPGA使用指南

########################################################################
# 
#		Step 1
#  Global Timing Constraints
#
########################################################################

#NET "rd_clk" TNM_NET = "rd_clk";
#TIMESPEC "TS_rd_clk" = PERIOD "rd_clk" 8.75 ns HIGH 50 %;
#NET "wr_clk_cha" TNM_NET = "wr_clk_cha";
#TIMESPEC "TS_wr_clk_cha" = PERIOD "wr_clk_cha" 15 ns HIGH 50 %;
#NET "wr_clk_chb" TNM_NET = "wr_clk_chb";
#TIMESPEC "TS_wr_clk_chb" = PERIOD "wr_clk_chb" 15 ns HIGH 50 %;
#NET "wr_clk_chc" TNM_NET = "wr_clk_chc";
#TIMESPEC "TS_wr_clk_chc" = PERIOD "wr_clk_chc" 15 ns HIGH 50 %;
#NET "wr_clk_chd" TNM_NET = "wr_clk_chd";
#TIMESPEC "TS_wr_clk_chd" = PERIOD "wr_clk_chd" 15 ns HIGH 50 %;
#OFFSET = IN 7.5 ns BEFORE "wr_clk_cha";
#OFFSET = IN 7.5 ns BEFORE "wr_clk_chb";
#OFFSET = IN 7.5 ns BEFORE "wr_clk_chc";
#OFFSET = IN 7.5 ns BEFORE "wr_clk_chd";
#OFFSET = OUT 5 ns AFTER "rd_clk";

########################################################################
# 
#		Step 2
# Multi-cycle paths from the blockrams to ffs
# 
########################################################################

# TIMESPEC "TS_blockrams2ffs" = FROM "RAMS" TO "FFS" "TS_rd_clk" * 3;

########################################################################
# 
#		Step 3
# The outputs are active for 8 rd_clk cycles.  The valid signals
# are active for 4 clock cycles.  Allow two internal clock cycles to 
# propagate these values off chip (multi-cycle path).
#
# Note...To constraint these paths we just added pads to the group.  No
# new constraints were needed since the offset out already exists.
#
########################################################################

#INST "mac_dv*.PAD" TNM = "tgrp_output_data";
#TIMEGRP "tgrp_output_data" OFFSET = OUT 10 ns AFTER "rd_clk";

########################################################################
# 
#		Step 4
# Specify multi-cycle paths for the clock enable signals waiting_cntr_en
# to next_ch_en.
# 
########################################################################

NET "data_control_inst/data_control_fsm_inst/waiting_cntr_en_3" TNM_NET = "tgrp_waiting_cntr_en";
#NET "data_control_inst/waiting_cntr_en" TNM_NET = "tgrp_waiting_cntr_en";
#NET "data_control_inst/next_ch_en" TNM_NET = "tgrp_next_ch_en";
#TIMESPEC "TS_waiting_cntr_en_grp2next_ch_en_grp" = FROM "tgrp_waiting_cntr_en" TO "tgrp_next_ch_en" "TS_rd_clk" * 5;

########################################################################
#
#		Step 5
# Specify multi-cycle paths for all ffs driven by dv_enable signal
# 
########################################################################

NET "data_control_inst/dv_enable" TNM_NET = "tgrp_dv_enable";
NET "data_control_inst/mac_inst/mac_cha_inst/dv_enable??" TNM_NET = "tgrp_dv_enable";
TIMESPEC "TS_dv_enable2dv_enable" = FROM "tgrp_dv_enable" TO "tgrp_dv_enable" "TS_rd_clk" * 8;

########################################################################
#
# Original Pin Assignments
#
########################################################################

#NET "data_cha"  LOC = "m3"  ;
#NET "data_chb"  LOC = "j16"  ;
#NET "data_chc"  LOC = "p15"  ;
#NET "data_chd"  LOC = "j1"  ;
#NET "final_data[0]"  LOC = "b11"  ;
#NET "final_data[1]"  LOC = "a10"  ;
#NET "final_data[2]"  LOC = "a7"  ;
#NET "final_data[3]"  LOC = "a9"  ;
#NET "final_data[4]"  LOC = "c8"  ;
#NET "final_data[5]"  LOC = "j4"  ;
#NET "final_data[6]"  LOC = "b10"  ;
#NET "final_data[7]"  LOC = "d8"  ;
#NET "mac_cha[0]"  LOC = "p1"  ;
#NET "mac_cha[10]"  LOC = "e10"  ;
#NET "mac_cha[11]"  LOC = "c5"  ;
#NET "mac_cha[12]"  LOC = "b5"  ;
#NET "mac_cha[13]"  LOC = "c10"  ;
#NET "mac_cha[14]"  LOC = "c7"  ;
#NET "mac_cha[15]"  LOC = "e7"  ;
#NET "mac_cha[16]"  LOC = "b6"  ;
#NET "mac_cha[17]"  LOC = "a5"  ;
#NET "mac_cha[18]"  LOC = "e6"  ;
#NET "mac_cha[19]"  LOC = "d6"  ;
#NET "mac_cha[1]"  LOC = "f2"  ;
#NET "mac_cha[20]"  LOC = "d7"  ;
#NET "mac_cha[2]"  LOC = "f3"  ;
#NET "mac_cha[3]"  LOC = "g2"  ;
#NET "mac_cha[4]"  LOC = "h3"  ;
#NET "mac_cha[5]"  LOC = "f5"  ;
#NET "mac_cha[6]"  LOC = "d10"  ;
#NET "mac_cha[7]"  LOC = "b7"  ;
#NET "mac_cha[8]"  LOC = "d5"  ;
#NET "mac_cha[9]"  LOC = "c6"  ;
#NET "mac_chb[0]"  LOC = "p2"  ;
#NET "mac_chb[10]"  LOC = "a12"  ;
#NET "mac_chb[11]"  LOC = "d16"  ;
#NET "mac_chb[12]"  LOC = "g13"  ;
#NET "mac_chb[13]"  LOC = "e13"  ;
#NET "mac_chb[14]"  LOC = "f14"  ;
#NET "mac_chb[15]"  LOC = "f15"  ;
#NET "mac_chb[16]"  LOC = "e14"  ;
#NET "mac_chb[17]"  LOC = "f13"  ;
#NET "mac_chb[18]"  LOC = "e15"  ;
#NET "mac_chb[19]"  LOC = "f12"  ;
#NET "mac_chb[1]"  LOC = "h14"  ;
#NET "mac_chb[20]"  LOC = "e16"  ;
#NET "mac_chb[2]"  LOC = "h15"  ;
#NET "mac_chb[3]"  LOC = "h13"  ;
#NET "mac_chb[4]"  LOC = "h16"  ;
#NET "mac_chb[5]"  LOC = "g15"  ;
#NET "mac_chb[6]"  LOC = "g14"  ;
#NET "mac_chb[7]"  LOC = "b12"  ;
#NET "mac_chb[8]"  LOC = "g16"  ;
#NET "mac_chb[9]"  LOC = "g12"  ;
#NET "mac_chc[0]"  LOC = "n3"  ;
#NET "mac_chc[10]"  LOC = "t10"  ;
#NET "mac_chc[11]"  LOC = "t12"  ;
#NET "mac_chc[12]"  LOC = "m11"  ;
#NET "mac_chc[13]"  LOC = "p8"  ;
#NET "mac_chc[14]"  LOC = "p9"  ;
#NET "mac_chc[15]"  LOC = "t9"  ;
#NET "mac_chc[16]"  LOC = "p11"  ;
#NET "mac_chc[17]"  LOC = "r10"  ;
#NET "mac_chc[18]"  LOC = "r11"  ;
#NET "mac_chc[19]"  LOC = "p10"  ;
#NET "mac_chc[1]"  LOC = "m10"  ;
#NET "mac_chc[20]"  LOC = "n9"  ;
#NET "mac_chc[2]"  LOC = "p12"  ;
#NET "mac_chc[3]"  LOC = "r12"  ;
#NET "mac_chc[4]"  LOC = "n12"  ;
#NET "mac_chc[5]"  LOC = "t14"  ;
#NET "mac_chc[6]"  LOC = "t8"  ;
#NET "mac_chc[7]"  LOC = "n11"  ;
#NET "mac_chc[8]"  LOC = "n10"  ;
#NET "mac_chc[9]"  LOC = "r9"  ;
#NET "mac_chd[0]"  LOC = "n2"  ;
#NET "mac_chd[10]"  LOC = "g3"  ;
#NET "mac_chd[11]"  LOC = "g5"  ;
#NET "mac_chd[12]"  LOC = "e2"  ;
#NET "mac_chd[13]"  LOC = "g4"  ;
#NET "mac_chd[14]"  LOC = "d3"  ;
#NET "mac_chd[15]"  LOC = "e3"  ;
#NET "mac_chd[16]"  LOC = "d2"  ;
#NET "mac_chd[17]"  LOC = "c3"  ;
#NET "mac_chd[18]"  LOC = "f4"  ;
#NET "mac_chd[19]"  LOC = "d1"  ;
#NET "mac_chd[1]"  LOC = "k2"  ;
#NET "mac_chd[20]"  LOC = "e4"  ;
#NET "mac_chd[2]"  LOC = "k3"  ;
#NET "mac_chd[3]"  LOC = "k4"  ;
#NET "mac_chd[4]"  LOC = "k1"  ;
#NET "mac_chd[5]"  LOC = "k5"  ;
#NET "mac_chd[6]"  LOC = "e1"  ;
#NET "mac_chd[7]"  LOC = "h4"  ;
#NET "mac_chd[8]"  LOC = "j2"  ;
#NET "mac_chd[9]"  LOC = "h1"  ;
#NET "mac_dv[0]"  LOC = "g1"  ;
#NET "mac_dv[1]"  LOC = "t13"  ;
#NET "mac_dv[2]"  LOC = "j13"  ;
#NET "mac_dv[3]"  LOC = "l3"  ;
#NET "rd_clk"  LOC = "n8"  ;
#NET "reset"  LOC = "r1"  ;
#NET "valid_ch[0]"  LOC = "r6"  ;
#NET "valid_ch[1]"  LOC = "j3"  ;
#NET "valid_ch[2]"  LOC = "c11"  ;
#NET "valid_ch[3]"  LOC = "e11"  ;
#NET "wr_clk_cha"  LOC = "d9"  ;
#NET "wr_clk_chb"  LOC = "c9"  ;
#NET "wr_clk_chc"  LOC = "a8"  ;
#NET "wr_clk_chd"  LOC = "b8"  ;