425 lines
10 KiB
Systemverilog
425 lines
10 KiB
Systemverilog
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//top-class : spi_driver
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//parameter : file_path: the path of *.txt file
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// itf: spi interface (type==spi_if)
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// half_sclk(option): =(half period of sclk)/(period of clk), default 5
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// interval(option): the time to wait between the adjacent W/R operation/(period of clk), defaut 10
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//example case :
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/* spi_driver my_drv;
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initial begin
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my_drv = new();
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my_drv.file_path = "./../cfgdata/enveindex/wave_index_13.txt";
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my_drv.itf = my_if;
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my_drv.half_sclk = 10;
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my_drv.interval = 50;
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my_drv.do_drive();
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end//*/
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class BinaryDataReader;
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// data_stream
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bit spi_data_queue[$];
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int cmd_head[$];
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// open & read txt_file
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function void read_txt_file(input string filename);
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int file_id;
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string line;
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bit [31:0] value;
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int i;
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//int cmd_head[$];
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int length;
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bit cmd;
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int cnt;
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// open
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file_id = $fopen(filename, "r");
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if (file_id == 0) begin
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$display("Error: Failed to open file %s", filename);
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return;
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end
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cnt = 0;
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// read
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while (!$feof(file_id)) begin
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//if ($fgets(line, file_id)) begin
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$fscanf(file_id,"%h\n",value);
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//$display("\nvalue = %h",value);
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//$display("cnt = %h",cnt);
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if(cnt == 0) begin
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cmd = value[31];
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if(cmd) cmd_head.push_back(value);
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cnt ++;
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end
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else if(cnt == 1) begin
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if(cmd) cmd_head.push_back(value);
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length = value[15:0] / 4;
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if(!cmd) cnt ++;
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else cnt = 0;
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end
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else if((cnt == length-1 +2) | cmd) begin
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cnt = 0;
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end
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else begin
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cnt ++;
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end
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//$display("cmd = %h",cmd);
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//$display("length = %h",length);
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//$display(cmd_head);
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for (i = 31; i >= 0; i--) begin
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spi_data_queue.push_back(value[i]);
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end
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//end
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end
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// close
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$fclose(file_id);
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endfunction
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function void get_data_queue(ref bit data_queue[$]);
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data_queue = spi_data_queue;
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spi_data_queue.delete();
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endfunction
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endclass
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//----------------------------------------------------------------------
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class spi_item;
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//Properties for Randomizing the MOSI
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rand bit cmd;
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rand bit[24:0] addr;
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rand bit[ 4:0] cfgid;
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rand bit[31:0] data[$];
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//Properties for Randomizing the pkt_sent process
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rand int interval;
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rand int half_sclk;
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constraint cstr {
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interval <= 1000;
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half_sclk >= 5;
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data.size >= 1;
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data.size <= 10000;
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}
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function new(string name="spi_item");
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endfunction : new
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extern function bit compare(spi_item rhs_);
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extern function void print();
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extern function void fprint(integer fid);
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extern function void trprint(integer fid, ref int cmd_head[$]);
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extern function void unpack(ref bit stream[$]);
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extern function void pack(bit stream[$]);
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extern function void adapt(
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ref bit stream[$]
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, int half_sclk
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, int interval
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);
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endclass : spi_item
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function bit spi_item::compare(spi_item rhs_);
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bit result=1'b1;
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int i=0;
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if(this.data.size() != rhs_.data.size()) begin
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$display("data_sizes are different");
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result = 1'b0;
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end
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else begin
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for(i=0;i<data.size();i++)begin
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if(data[i] != rhs_.data[i])
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result = 1'b0;
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end
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end
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return result;
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endfunction : compare
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function void spi_item::print();
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int i=0;
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if(!cmd)$display("----------ONE-PKT-DRIVING----------");
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else $display("---------ONE-PKT-COLLECTING--------");
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$display("cmd:\t%h",cmd);
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$display("addr:\t%h",addr);
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$display("cfgid:\t%h",cfgid);
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for(i=0;i<data.size();i++)begin
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$display("data[%2d]='h%h",i,data[i]);
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end
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$display("-----------------------------------");
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endfunction : print
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function void spi_item::unpack(ref bit stream[$]);
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int i=0,j=0;
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stream[0]=cmd;
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for(i=0;i<25;i++)
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stream[i+1] = addr[24-i];
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for(i=0;i<5;i++)
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stream[i+26]= cfgid[4-i];
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stream[31]=0;
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for(i=0;i<data.size();i++)begin
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//$display("i=%2d,datai=%b",i,data[i]);
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for(j=0;j<32;j++)begin
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stream[32+i*32+j]=data[i][31-j];
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//$display("i=%2d,j=%2d,streamij=%b",i,j,stream[32+i*32+j]);
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end
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end
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endfunction
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function void spi_item::fprint(integer fid);
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int i=0;
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if(!cmd)$fwrite(fid,"----------ONE-PKT-DRIVING----------\n");
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else $fwrite(fid,"---------ONE-PKT-COLLECTING--------\n");
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$fwrite(fid,"cmd:\t%h\n",cmd);
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$fwrite(fid,"addr:\t%h\n",addr);
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$fwrite(fid,"length:\t%d\n",data.size());
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for(i=0;i<data.size();i++)begin
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$fwrite(fid,"%h\n",data[i]);
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end
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$fwrite(fid,"-----------------------------------\n");
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endfunction : fprint
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function void spi_item::trprint(integer fid, ref int cmd_head[$]);
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int i=0;
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$fwrite(fid,"---------ONE-PKT-COLLECTING--------\n");
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$fwrite(fid,"%h\n",cmd_head.pop_front());
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$fwrite(fid,"%h\n",cmd_head.pop_front());
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for(i=0;i<data.size();i++)begin
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$fwrite(fid,"%h\n",data[i]);
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end
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$fwrite(fid,"-----------------------------------\n");
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endfunction : trprint
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function void spi_item::pack(bit stream[$]);
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int i=0;
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bit[31:0] data_temp=32'b0;
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//$display(stream);
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cmd = stream.pop_front();
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for(i=0;i<25;i++)
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addr[24-i] = stream.pop_front();
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for(i=0;i<5;i++)
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cfgid[4-i] = stream.pop_front();
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//reserved
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stream.pop_front();
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data.delete();
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while(stream.size()>0)begin
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for(i=0;i<32;i++)
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data_temp[31-i] = stream.pop_front();
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data.push_back(data_temp);
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end
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endfunction
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function void spi_item::adapt(ref bit stream[$], int half_sclk, int interval);
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int i=0;
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bit[31:0] data_length=32'b0;
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bit[31:0] data_temp=32'b0;
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cmd = stream.pop_front();
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//reserved
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stream.pop_front();
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for(i=0;i<5;i++)
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cfgid[4-i] = stream.pop_front();
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for(i=0;i<25;i++)
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addr[24-i] = stream.pop_front();
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for(i=0;i<32;i++)
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data_length[31-i] = stream.pop_front();
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data_length = {14'b0,data_length[19:2]};
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repeat(data_length) begin
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for(i=0;i<32;i++)
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data_temp[31-i] = cmd ? 1'b0 : stream.pop_front();
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data.push_back(data_temp);
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end
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this.half_sclk = half_sclk;
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this.interval = interval;
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endfunction
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//-----------------------------------------------------------------
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class spi_driver;
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string file_path;
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virtual spi_if itf;
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int interval = 10;
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int half_sclk = 5 ;
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spi_item m_trans;
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/*static string file_list[$]={
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"./../cfgdata/instrmem/awg_inst.txt" //0
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,"./../cfgdata/instrmem/LongFlattop_bin.txt" //1
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,"./../cfgdata/instrmem/LongFlattopAmpAdj_bin.txt" //2
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,"./../cfgdata/instrmem/LongRectangle_bin.txt" //3
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,"./../cfgdata/instrmem/LongRectangle50us_bin.txt" //4
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,"./../cfgdata/instrmem/SingleWaveACCZ_bin.txt" //5
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,"./../cfgdata/instrmem/SingleWaveCombine_bin.txt" //6
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,"./../cfgdata/instrmem/SingleWaveCosine_bin.txt" //7
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,"./../cfgdata/instrmem/SingleWaveFlattop_bin.txt" //8
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,"./../cfgdata/instrmem/SingleWaveRectangle_bin.txt" //9
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,"./../cfgdata/instrmem/WaveHold_bin.txt" //10
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,"./../cfgdata/instrmem/Condition_bin.txt" //11
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,"./../cfgdata/instrmem/RabiFreqAmp_bin.txt" //12
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,"./../cfgdata/instrmem/WaveHoldSingle_bin.txt" //13
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,"./../cfgdata/instrmem/Cosine9_bin.txt" //14
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//,"./../cfgdata/datamem/data_mem.txt" //15
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,"./../cfgdata/datamem/Cosine9_data_bin.txt" //15
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//,"./../cfgdata/enveindex/enve_index.txt" //16
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,"./../cfgdata/enveindex/wave_index_13.txt" //16
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//,"./../cfgdata/envemem/envelop_mem.txt" //17
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,"./../cfgdata/envemem/wave_bin_13.txt" //17
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,"./../cfgdata/envemem/rwave_bin_12.txt" //18
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};//*/
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function new(string name = "spi_seq");
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endfunction : new
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extern task send(ref spi_item pkt);
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task do_drive(integer o_file_path=0);
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BinaryDataReader reader = new();
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//spi_item m_trans;
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bit stream[$];
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reader.read_txt_file(file_path);
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reader.get_data_queue(stream);
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//$display(stream);
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while(stream.size()>0) begin
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//$display(stream.size());
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m_trans = new("m_trans");
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m_trans.adapt(stream,half_sclk,interval);
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//m_trans.print();
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send(m_trans);
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m_trans.print();
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if(o_file_path!=0) begin
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//m_trans.fprint(o_file_path);
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if(m_trans.cmd) begin
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m_trans.trprint(o_file_path, reader.cmd_head);
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end
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end
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end
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endtask : do_drive
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endclass : spi_driver
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task spi_driver::send(ref spi_item pkt);
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bit drv_stream[$];
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bit clt_stream[$];
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int i=0,j=0;
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int cs_time;
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int hs = pkt.half_sclk;
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while(!itf.rstn) begin
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itf.csn = 1'b1;
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itf.sclk = 1'b1;
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@(posedge itf.clk);
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end
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//$display("unpacking");
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//unpack into bitstream
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pkt.unpack(drv_stream);
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//$display(stream);
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//$display("unpackend");
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//initialize chip_select and input_clk
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itf.csn <= 1'b1;
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itf.sclk <= 1'b1;
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itf.mosi <= drv_stream[0];
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itf.cfgid <= pkt.cfgid;
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@(posedge itf.clk);
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itf.csn <= 1'b0;
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itf.sclk <= 1'b1;
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//$display("initialize end");
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//csn valid time: time for bitstream to be all sent
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cs_time = drv_stream.size()*2*hs;
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//$display(stream.size());
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//$display("drv_stream.size = %0d", drv_stream.size());
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//$display(cs_time);
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//drive the stream onto interface
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fork
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//Make sclk
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begin
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for(j=0;j<cs_time;j++) begin
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if(j%hs==0 && j!=0)
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itf.sclk <= ~itf.sclk;
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||
|
|
@(posedge itf.clk);
|
||
|
|
//$display("j = %0d", j);
|
||
|
|
end
|
||
|
|
itf.sclk = 1'b1;
|
||
|
|
repeat(4) @(posedge itf.clk);
|
||
|
|
itf.csn = 1'b1;
|
||
|
|
end
|
||
|
|
|
||
|
|
//Send data(at negedge)
|
||
|
|
begin
|
||
|
|
|
||
|
|
for(i=0;i<=cs_time;i++) begin
|
||
|
|
// Drive at negedge
|
||
|
|
if(i%(2*hs)==hs) begin
|
||
|
|
itf.mosi <= drv_stream[(i/hs-1)/2];
|
||
|
|
end
|
||
|
|
// Collect at posedge
|
||
|
|
else if(i%(2*hs)==0 && i!=0) begin
|
||
|
|
clt_stream.push_back(pkt.cmd ? itf.miso : itf.mosi);
|
||
|
|
//$write(itf.mosi);
|
||
|
|
end
|
||
|
|
@(posedge itf.clk);
|
||
|
|
end
|
||
|
|
//clt_stream collect the read_data/write_data, and
|
||
|
|
//the first 32bit should be consistent to the input command word
|
||
|
|
for(i=0;i<32;i++) clt_stream[i]=drv_stream[i];
|
||
|
|
//$display(clt_stream);
|
||
|
|
//$display("i = %0d", i);
|
||
|
|
|
||
|
|
pkt.pack(clt_stream);
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
join
|
||
|
|
|
||
|
|
//interval between two pkt send operation
|
||
|
|
repeat(pkt.interval-1)
|
||
|
|
@(posedge itf.clk);
|
||
|
|
|
||
|
|
endtask
|
||
|
|
|
||
|
|
|