how to read a text file in verilog, in which the text has signed floating values?

bhalke.santosh · May 23, 2013

I've written a matlab code to generate sinewave to that I added noise and then that signal then I converted into text file.
This textfile has decimal floating values. I want to read this file in verilog testbench and get input from that file. and again backto write in another text file the output.
can anybody help me in this?

sherif123 · May 23, 2013

Assuming the file in like :

.1
.12
.15
.2
.26
.3

and so on

write code like this

integer in,i,out;
real data;

initial begin
in = $fopen("input.txt,"rb");
out = $fopen("output","w");

if(!in) $display("File Open Error!");
if(!out) $display("File Open Error!");

i = $fscanf(in,"%f",data);
i = $fwritef(in,"%f",data);
$fclose(in);
$fclose(out);
end

----------------------------------------
check this page
http://www.asic.co.in/Index_files/verilog_files/File_IO.htm
Paragraph "READ FORMATTED TEXT"

bhalke.santosh · May 24, 2013

sherif123 said:
Assuming the file in like :

.1
.12
.15
.2
.26
.3

and so on

write code like this

integer in,i,out;
real data;

initial begin
in = $fopen("input.txt,"rb");
out = $fopen("output","w");

if(!in) $display("File Open Error!");
if(!out) $display("File Open Error!");

i = $fscanf(in,"%f",data);
i = $fwritef(in,"%f",data);
$fclose(in);
$fclose(out);
end

----------------------------------------
check this page
http://www.asic.co.in/Index_files/verilog_files/File_IO.htm
Paragraph "READ FORMATTED TEXT"

thanks for ur reply its helpfull...

how to read a text file in verilog, in which the text has signed floating values?

bhalke.santosh

Newbie level 3

sherif123

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bhalke.santosh

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how to read a text file in verilog, in which the text has signed floating values?

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