Subversion Repositories an-fpga-implementation-of-low-latency-noc-based-mpsoc

`include "pronoc_def.v"

/**************************************
 * Module: tree
 * Date:2019-01-01  
 * Author: alireza     
 *
 * 
Description: 

    Star      

 ***************************************/

 
module  star_noc_top #(
        parameter NOC_ID=0
) (
                reset,
                clk,    
                chan_in_all,
                chan_out_all,
                router_event
        );
  
        `NOC_CONF
  
        input   clk,reset;
        //Endpoints ports 
        input   smartflit_chanel_t chan_in_all  [NE-1 : 0];
        output  smartflit_chanel_t chan_out_all [NE-1 : 0];
        
        //Events
        output  router_event_t  router_event [NR-1 : 0][MAX_P-1 : 0];
                  
 
            router_top # (
                        .NOC_ID(NOC_ID),
                        .P(NE)
                )
                the_router
                (              
                        .current_r_id    (0),
                        .current_r_addr  (1'b0), 
                        .chan_in         (chan_in_all), 
                        .chan_out        (chan_out_all), 
                        .router_event    (router_event[0]),
                        .clk             (clk            ), 
                        .reset           (reset          )
                );
        

endmodule


module star_conventional_routing #(
                parameter NE                = 8         
                )
                (       
                dest_e_addr,
                destport
);    

        function integer log2;
                input integer number; begin   
                        log2=(number <=1) ? 1: 0;    
                        while(2**log2<number) begin    
                                log2=log2+1;    
                        end        
                end   
        endfunction // log2 
        
        localparam EAw = log2(NE);      

        input   [EAw-1   :0] dest_e_addr;
        output  [EAw-1   :0] destport;
        // the destination endpoint address & connection port number are the same in star topology
        assign destport = dest_e_addr;
endmodule