在verilog时钟和重置不适用于第二个子模块

时间:2017-04-26 10:01:56

标签: verilog

我已经创建了一个包含两个模块的模块,第一个是初始化内存,第二个是检查从内存中获取的一些值。这是我的代码

module correct(clk,reset,state,en_vs_w,c_vs_wt,
     data_in1,data_in0,j_st,k_st,e,i_st,m_st);

input clk,reset;
output [2:0]state;
output en_vs_w,e;
output [2:0]c_vs_wt;
input [2:0]data_in1;
input [2:0]data_in0;
input [3:0]j_st;
input [3:0]k_st;

output reg [2:0]i_st;
output reg [3:0]m_st;
wire  en;
wire inc_m;
wire [2:0]check;

check_1 c_1(.clk(clk),.reset(reset),.i_st(i_st),.en(en),
.data_in1(data_in1),.data_in0(data_in0),

.check(check),.j_st(j_st),.k_st(k_st),.m_st(m_st),.inc_m(inc_m),.e(e));

valid_state_1  v_s_1(.clk(clk),.reset(reset),.i_st(i_st),.m_st(m_st),
.state(state),.en(en),.check(check),
 .inc_m(inc_m),.c_vs_wt(c_vs_wt),.en_vs_w(en_vs_w));

endmodule
/////////////////////////////



module check_1(clk,reset,i_st,en,data_in1,
data_in0,check,j_st,k_st,m_st,inc_m,e);

input wire[2:0]i_st;
input en;
input clk;
input wire[3:0]j_st;
input wire[3:0]k_st;
input wire[3:0]m_st;
input reset;
input wire[2:0]data_in0;
input wire[2:0]data_in1;

output reg [2:0]check;
output reg inc_m;

reg [12:0]arr[0:7];

output reg e ;


// Declare states
parameter S0 = 0, S1 = 1, S2 = 2, S3 = 3 ,S4 = 4 ;
// Declare max address (it could be less words)
parameter MAXADDRESS = 3'b111;
parameter FILLINGVALUE_A = 12'hFFF;
//parameter FILLINGVALUE_PM = 3'b111;

reg [2:0] i;

reg [2:0] state;



always @ (posedge clk) begin
    if (reset)
    begin
        state <= S0;
        e<=0;
        end
    else if (e==0)
        begin

    case (state)
    S0: begin
        i <= 3'b0;
        //j<= 4'b0;
     state <= S1;
        end
    S1: begin
        arr[i] <= FILLINGVALUE_A;
        //PM[i] <= FILLINGVALUE_PM;
        if (i == MAXADDRESS) begin
            state <= S2;
        end
        else begin
            i <= i + 3'b001;
            state <= S1;
        end
    end
    S2: begin
        e<=1;
         //inc_c=1;
         arr[0][2:0] <= 3'b0;
        end

   endcase  

  end       

else if(en==1 && e==1)

          begin


     arr[i_st+3'b001][j_st +:3]<= data_in0;
     arr[i_st+3'b001][k_st +:3] <= data_in1;
        inc_m <= 1;  
          end
 else if (en==0 && e==1)
      begin

       check<= arr[i_st][m_st +:3] ;
      end

    end 

endmodule

////////////////////////////

module valid_state_1(clk,reset,i_st,m_st,
state,en,check,inc_m,c_vs_wt,en_vs_w);

input clk,reset;
input [2:0]check;
input inc_m;


output [2:0]i_st;
output [3:0]m_st;
output reg en ,en_vs_w;

output reg[2:0] state;

output reg [2:0]c_vs_wt;

reg [2:0]i;
reg [3:0]m;

always @ (posedge clk)
begin
if (reset)
  begin
  m <= 4'b0000;
  i <= 3'b000;
 en <=0;
  end
 end


always @ (check)
  begin

  if (m<=4'b1011 )
     begin

      if (check<=3'b110)


begin state <= check;
               m<= m+ 4'b0011;
  en<= 1'bx;                         end    
     else

begin m<= m + 4'b0011;
              en<= 0;
                  en_vs_w<= 1;
                  c_vs_wt<= 3'b000;
 end


     end    

   else if (m==4'b1100 && i < 3'b011)
     begin

       i<= i+3'b001;
       m<= 4'b00000;
          en<=1'bx;
     end

        else if (inc_m == 1 && i < 3'b011)

        begin
        m <= m + 4'b0011;
      en<= 0;
        en_vs_w<= 1;
        c_vs_wt<= 3'b000;
        end
        else if (i == 3'b011)

        begin
        en<=1'bx;
        m<= 4'bxxxx;
        i <= 3'bxxx;
        end

end
assign m_st =m;
assign i_st = i;

endmodule

///////////////////////////// 时钟和重置对于检查模块工作正常但是它对于valid_state块没有正常工作。它没有设置&#34; m&#34;和&#34;我&#34; as&#34; 00000&#34; &安培; &#34; 000&#34;分别和我无法理解它的错误。个别工作正常,但没有工作&#34;纠正&#34;模块

0 个答案:

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