xiaomagee

实验现象:

  在本实验中,将工程中的D触发器、JK触发器实例化,对应其真值表,用signal对其进行

检验,利用SignaTap II观察分析波形。

核心代码:

module D(
    input CLK,
    input rst_n,
    input Data,
    output Q,
    output Qn
);
//-----------------------D---------------------------//
    reg q,qn;
    
    always@(posedge CLK)
        begin
            if(!rst_n)
                begin
                    q <= 1\'d0;
                    qn <= 1\'d1;
                end
            else
                begin
                    q <= Data;
                    qn <= ~Data;
                end
        end

    assign Q = q;
    assign Qn =qn;
        
//-------------------endmodule-----------------------//
endmodule
module J_K(
    input CLK,
    input rst_n,
    input J,
    input K,
    output Q,
    output Qn
);
//---------------------J_K---------------------------//
    reg q,qn;
    
    always@(posedge CLK)
        begin
            if(!rst_n)
                begin
                    q <= 1\'d0;
                    qn <= 1\'d1;
                end
            else
                begin
                    case({J,K})
                        2\'b00:
                            begin
                                q <= q;
                                qn <= qn;
                            end
                        2\'b01:
                            begin
                                q <= 1\'d0;
                                qn <= 1\'d1;
                            end
                        2\'b10:
                            begin
                                q <= 1\'d1;
                                qn <= 1\'d0;
                            end
                        2\'b11:
                            begin
                                q <= ~q;
                                qn <= ~qn;
                            end
                        default :
                            begin
                                q <= 1\'d0;
                                qn <= 1\'d1;
                            end
                    endcase
                end
        end

        assign Q = q;
        assign Qn = qn;
        
//-------------------endmodule-----------------------//
endmodule

实验方法及指导书:

链接:http://pan.baidu.com/s/1nv82r7j 密码:d2qp

分类:

技术点:

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