how to read a file from verilog

[Tajwar]

can any1 tell me how to read a file in verilog?

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where do v add data.txt file? as a module or as a test bench ?

 

[maulik_suthar]

in the testbench or top module u can use the $readmemb for reading file.
do refer verilog LRM it will give u every ans u need

syntax: $readmemb("file_name.ext", var_name);

 

[Tajwar]

I am trying this code for reading a text file. but when i simulate it, my output at Mem is XXXXXXXXXX . can any1 help me whr i am rong??

module readmemh_demo;
reg [31:0] Mem [0:11];
initial $readmemh("data.txt",Mem);
integer k;
initial begin
#10;
$display("Contents of Mem after reading data file:");
for (k=0; k<6; k=k+1) $display("%d:%h",k,Mem[k]);
end
endmodule
EXAMPLE: data.txt file
234ac
23ca5
b3c34
23a4a
234ca
b3234

 

[jt_eaton]

I am trying this code for reading a text file. but when i simulate it, my output at Mem is XXXXXXXXXX . can any1 help me whr i am rong??

module readmemh_demo;
reg [31:0] Mem [0:11];
initial $readmemh("data.txt",Mem);
integer k;
initial begin
#10;
$display("Contents of Mem after reading data file:");
for (k=0; k<6; k=k+1) $display("%d:%h",k,Mem[k]);
end
endmodule
EXAMPLE: data.txt file
234ac
23ca5
b3c34
23a4a
234ca
b3234

What does your verilog log file say?