module circuit_arb(
    input           sys_clk     ,
    input           sys_rst_n   ,
    input   [7: 0]  slave_id    ,
    input   [7: 0]  opcode      ,
    input   [7: 0]  data        ,

    output  [3: 0]  led         ,
    output          beep        ,
    output  [7: 0]  seg_led     ,
    output  [5: 0]  sel_led     ,
    output          dout
);
reg [1: 0] dev_id;
always @(*)begin
    case(slave_id)
        8'b0011_0000: dev_id = 2'd0;
        8'b0011_0001: dev_id = 2'd1;
        8'b0011_0010: dev_id = 2'd2;
        8'b0011_0011: dev_id = 2'd3;
        default:      dev_id = 2'd0;
    endcase
end 
led_circuit led_circuit_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
.opcode         (opcode[3: 0]),
.data           (data[3: 0]),
.dev_id         (dev_id),//工作使能，00000001

.led            (led)
);  
beep_circuit beep_circuit_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
.dev_id         (dev_id),
.opcode         (opcode[3: 0]),
.data           (data[3: 0]),
    
.beep           (beep)
);
clock_circuit   clock_circuit_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
.opcode         (opcode[3: 0]),
.data           (data[3: 0]),
.dev_id         (dev_id),//设备地址
    
.seg_led        (seg_led),
.sel_led        (sel_led)
);
ws2812_circuit  ws2812_circuit_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
.opcode         (opcode[3: 0]),
.data           (data[3: 0]),
.dev_id         (dev_id),//设备地址

.dout           (dout)
);
endmodule