Reading a file information in SV

SystemVerilog
, ,
1

Hi all ,

I’m Trying to read a file information in SV ,
But i’m getting some junk data(unwanted data) ,

function get_mcu_data; // function to read the file and store the contents in the array.
reg[31:0] s;
integer i;
in1 = $fopen("/home/shtsai/work/camel/versic_libs/vlog/proj/hpc_ethash/hardware/test/hpc/mcu_data.txt","r");
//$readmemh("/home/shtsai/work/camel/versic_libs/vlog/proj/hpc_ethash/hardware/test/hpc/mcu_data.txt" ,mcu_wr_data);
while ( !$feof(in1)) begin
$fgets(line,in1);
$display(" Prashu :%0h", line); 
end

input of this file

80     
14
34
24
24
24  
ac
24
ac
ac
ac
43
45
ac
00
01
23
00
00
00
00
24
0c
ac
00
01
23
01
23
01
23

After running the simulation the output which i’m getting is below

Prashu :383020202020200a
 Prashu :31340a
 Prashu :33340a
 Prashu :32340a
 Prashu :32340a
 Prashu :323420200a
 Prashu :61630a
 Prashu :32340a
 Prashu :61630a
 Prashu :61630a
 Prashu :61630a
 Prashu :34330a
 Prashu :34350a
 Prashu :61630a
 Prashu :30300a
 Prashu :30310a
 Prashu :32330a
 Prashu :30300a
 Prashu :30300a
 Prashu :30300a
 Prashu :30300a

Kindly please help to read the file information correcly .

2

In reply to prasanthB:

I’m assuming by unwanted data you mean did not want to see the ASCII codes for the strings you read. You need to convert the ASCII hex characters to binary first.

function void get_mcu_data; // function to read the file and store the contents in the array.
  string line;
  int code;
  bit [7:0] value;
  in1 = $fopen("mcu_data.txt","r");
  while ( !$feof(in1)) begin
     code = $fgets(line,in1);
     code = $sscanf(line,"%h",value);
     $display(" Prashu :%0h", value); 
end