Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

verilog code of 8 dct architecture

Status
Not open for further replies.
R

riti1

Newbie level 1
Newbie level 1
Joined
Jan 16, 2015
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
30
i write the code for 8 dct...but i am getting certain warnings which i cant able to reolve.guide me for the same.

Code Verilog - [expand]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

module dct_8(clk,x0,x1,x2,x3,x4,x5,x6,x7,y0,y1,y2,y3,y4,y5,y6,y7
    );
input clk;
input [3:0] x0,x1,x2,x3,x4,x5,x6,x7;
output [11:0] y0,y1,y2,y3,y4,y5,y6,y7;
wire[10:0] t089,t075,t050,t018,t189,t175,t150,t118,t289,t275,t250,t218,t389,t375,t350,t318;
wire[4:0] f0,f1,f2,f3,z0,z1,z2,z3;
 
input_adder_8 m(clk,x0,x1,x2,x3,x4,x5,x6,x7,f0,f1,f2,f3,z0,z1,z2,z3);  //a0=f0,b0=z0
new w(clk,f0,f1,f2,f3,y0,y2,y4,y6);
shift_adder_8 p0(clk,z0,z1,z2,z3,t089,t189,t289,t389,t075,t175,t275,t375,t050,t150,t250,t350,t018,t118,t218,t318);
 
 output_adder_8a q(clk,t089,t318,t175,t250,y1);
 output_adder_8b r(clk,t289,t118,t075,t350,y3);
 output_adder_8c s(clk,t189,t218,t375,t050,y5);
 output_adder_8d t(clk,t389,t018,t275,t150,y7);
 
endmodule
 
 
 
module input_adder_8(clk,x0,x1,x2,x3,x4,x5,x6,x7,f0,f1,f2,f3,z0,z1,z2,z3);
input clk;
input [3:0] x0,x1,x2,x3,x4,x5,x6,x7;
output reg[4:0] f0,f1,f2,f3,z0,z1,z2,z3;
 
always@(posedge clk)
begin
 
 f0<=x0+x7;
 z0<=x0-x7;
 f1<=x1+x6;
 z1<=x1-x6;
 f2<=x2+x5;
 z2<=x2-x5;
 f3<=x3+x4;
 z3<=x3-x4;
 end
endmodule
 
 
module shift_adder_8(clk,z0,z1,z2,z3,t089,t189,t289,t389,t075,t175,t275,t375,t050,t150,t250,t350,t018,t118,t218,t318);
input clk;
input [4:0]z0,z1,z2,z3;
output reg[11:0]t089,t075,t050,t018,t189,t289,t389,t175,t275,t375,t118,t218,t318,t150,t250,t350;
reg [6:0] u0,u1,u2,u3,v0,v1,v2,v3;
 
always@(posedge clk)
begin
 
 u0 <= (z0<<3)+z0;
 u1 <= (z1<<3)+z1;
 u2 <= (z2<<3)+z2;
 u3 <= (z3<<3)+z3;
 v0 <= (z0<<4)+u0;
 v1 <= (z1<<4)+u1;
 v2 <= (z2<<4)+u2;
 v3 <= (z3<<4)+u3;
 t089 <= (z0<<6)+v0;
 t189 <= (z1<<6)+v1;
 t289 <= (z2<<6)+v2;
 t389 <= (z3<<6)+v3;
 t075 <= (v0<<1)+v0;
 t175 <= (v1<<1)+v1;
 t275 <= (v2<<1)+v2;
 t375 <= (v3<<1)+v3;
 t050 <= (v0<<1);
 t150 <= (v1<<1);
 t250 <= (v2<<1);
 t350 <= (v3<<1);
 t018 <= (u0<<1);
 t118 <= (u1<<1);
 t218 <= (u2<<1);
 t318 <= (u3<<1);
 end
endmodule
 
module output_adder_8a(clk,t089,t175,t250,t318,y1);
input clk;
input [11:0] t089,t175,t250,t318;
output reg[15:0] y1;
reg [12:0] c,d;
 
always@(posedge clk)
begin
 
 c<= t089+t318;
 d<= t175+t250;
//assign e= t89+t18;
//assign f= t75-t50;
//assign g= t18-t89;
//assign h= t75+t50;
//assign i= t18-t89;
//assign j= t75-t50;
 
 y1<= c+d;
//assign y3= e+f;
//assign y5= g+h;
//assign y7= i+j;
end
endmodule
 
module output_adder_8b(clk,t289,t075,t350,t118,y3);
input clk;
input [11:0] t289,t075,t350,t118;
output reg[15:0] y3;
reg [12:0] e,f;
always@(posedge clk)
begin
 e<= t289+t118;
 f<= t075-t350;
 y3<=f-e;
 end
endmodule
 
module output_adder_8c(clk,t189,t375,t050,t218,y5);
input clk;
input [11:0] t189,t375,t050,t218;
output reg[15:0] y5;
reg [12:0] g,h;
always@(negedge clk)
begin
 g<= t218-t189;
 h<= t375+t050;
 y5<=g+h;
 end
endmodule
 
module output_adder_8d(clk,t389,t275,t150,t018,y7);
input clk;
input [11:0] t389,t275,t150,t018;
output reg[15:0] y7;
reg [12:0] i,j;
always@(posedge clk)
begin
 i<= t018-t389;
 j<= t275-t150;
 y7<=i+j;
 end
endmodule



WARNING:Xst:646 - Signal <p1<9>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:646 - Signal <p0<9>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:646 - Signal <f3<4>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:646 - Signal <f2<4>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:646 - Signal <f1<4>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:646 - Signal <f0<4>> is assigned but never used. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <s06_0> (without init value) has a constant value of 0 in block <p1>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <t218_0> (without init value) has a constant value of 0 in block <p0>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s03_1> (without init value) has a constant value of 0 in block <p1>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:2677 - Node <f0_4> of sequential type is unconnected in block <m>.
WARNING:Xst:2677 - Node <f1_4> of sequential type is unconnected in block <m>.
WARNING:Xst:2677 - Node <f2_4> of sequential type is unconnected in block <m>.
WARNING:Xst:2677 - Node <f3_4> of sequential type is unconnected in block <m>.
WARNING:Xst:2677 - Node <p0_9> of sequential type is unconnected in block <p1>.
WARNING:Xst:2677 - Node <p1_9> of sequential type is unconnected in block <p1>.
WARNING:Xst:2677 - Node <c0_12> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c0_13> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c1_12> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c2_12> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c2_13> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c3_12> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <c3_13> of sequential type is unconnected in block <z1>.
WARNING:Xst:2677 - Node <t089_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t189_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t075_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t289_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t389_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t175_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t275_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <t375_11> of sequential type is unconnected in block <p0>.
WARNING:Xst:2677 - Node <y1_12> of sequential type is unconnected in block <q>.
WARNING:Xst:2677 - Node <y1_13> of sequential type is unconnected in block <q>.
WARNING:Xst:2677 - Node <y1_14> of sequential type is unconnected in block <q>.
WARNING:Xst:2677 - Node <y3_12> of sequential type is unconnected in block <r>.
WARNING:Xst:2677 - Node <y3_13> of sequential type is unconnected in block <r>.
WARNING:Xst:2677 - Node <y3_14> of sequential type is unconnected in block <r>.
WARNING:Xst:2677 - Node <y5_12> of sequential type is unconnected in block <s>.
WARNING:Xst:2677 - Node <y5_13> of sequential type is unconnected in block <s>.
WARNING:Xst:2677 - Node <y5_14> of sequential type is unconnected in block <s>.
WARNING:Xst:2677 - Node <y7_12> of sequential type is unconnected in block <t>.
WARNING:Xst:2677 - Node <y7_13> of sequential type is unconnected in block <t>.
WARNING:Xst:2677 - Node <y7_14> of sequential type is unconnected in block <t>.
WARNING:Xst:2404 - FFs/Latches <t050<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t150<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t250<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t350<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t118<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t018<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t218<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <t318<11:8>> (without init value) have a constant value of 0 in block <shift_adder_8>.
WARNING:Xst:2404 - FFs/Latches <y1<15:14>> (without init value) have a constant value of 0 in block <output_adder_8a>.
WARNING:Xst:2404 - FFs/Latches <y5<15:14>> (without init value) have a constant value of 0 in block <output_adder_8c>.
WARNING:Xst:2404 - FFs/Latches <y7<15:14>> (without init value) have a constant value of 0 in block <output_adder_8d>.
WARNING:Xst:2404 - FFs/Latches <s03<11:11>> (without init value) have a constant value of 0 in block <shift>.
WARNING:Xst:2404 - FFs/Latches <s13<11:11>> (without init value) have a constant value of 0 in block <shift>.
WARNING:Xst:2404 - FFs/Latches <s06<11:11>> (without init value) have a constant value of 0 in block <shift>.
WARNING:Xst:2404 - FFs/Latches <s16<11:11>> (without init value) have a constant value of 0 in block <shift>.
WARNING:Xst:2404 - FFs/Latches <c0<15:13>> (without init value) have a constant value of 0 in block <output_adder>.
WARNING:Xst:2404 - FFs/Latches <c1<15:13>> (without init value) have a constant value of 0 in block <output_adder>.
WARNING:Xst:2677 - Node <p0_9> of sequential type is unconnected in block <shift>.
WARNING:Xst:2677 - Node <p1_9> of sequential type is unconnected in block <shift>.
WARNING:Xst:1710 - FF/Latch <t018_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t118_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t218_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t318_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t050_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t150_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t250_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t350_0> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <s13_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s03_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <q1_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <q0_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_5> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_4> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_3> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_2> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_1> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s16_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_5> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_4> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_3> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_2> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_1> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s06_0> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s03_1> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s13_1> (without init value) has a constant value of 0 in block <shift>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <t075_9> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t075_10> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t075_11> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t175_9> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t175_10> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t175_11> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t275_9> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t275_10> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t275_11> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t375_9> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t375_10> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <t375_11> (without init value) has a constant value of 0 in block <shift_adder_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <c_12> (without init value) has a constant value of 0 in block <output_adder_8a>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <d_12> (without init value) has a constant value of 0 in block <output_adder_8a>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <y1_13> (without init value) has a constant value of 0 in block <output_adder_8a>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <e_12> (without init value) has a constant value of 0 in block <output_adder_8b>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <h_12> (without init value) has a constant value of 0 in block <output_adder_8c>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1710 - FF/Latch <q/d_11> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <q/d_10> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s/h_11> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <s/h_10> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_5> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_4> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_3> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_2> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_1> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c0_0> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_5> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_4> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_3> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_2> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_1> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch <w/z1/c2_0> (without init value) has a constant value of 0 in block <dct_8>. This FF/Latch will be trimmed during the optimization process.
WARNING:Xst:2677 - Node <m/f3_4> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <m/f2_4> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <m/f1_4> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <m/f0_4> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <p0/t389_11> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <p0/t289_11> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <p0/t189_11> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <p0/t089_11> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <q/y1_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <r/y3_14> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <r/y3_13> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <r/y3_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <r/f_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <s/y5_13> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <s/y5_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <s/g_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <t/y7_13> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <t/y7_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <t/j_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <t/i_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c1_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c0_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c3_13> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c3_12> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c2_13> of sequential type is unconnected in block <dct_8>.
WARNING:Xst:2677 - Node <w/z1/c2_12> of sequential type is unconnected in block <dct_8>.
Click to expand...
 
Last edited by a moderator:

These warnings can be ignored. These are reported because your design is an overkill. The unnecessary logic has been optimized away. So for every bit optimized away, it reports a warning message. Go through the warning message & relate it to your design. You will understand the meaning.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top