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reading .bin file from matlab in VHDL

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haris343

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i need help that i have created a .bin file in matlab and i want to read it it VHDL...!! kindly help me out !!

thanks alot !!
 

I would recommend you output a text file rather than binary from matlab. Reading text is easy in VHDL, but reading binary is simulator dependent. Modelsim is the easiest to read binary in.
 

so can u please help me how can i read the text file in vhdl...!! plus it will be more helpful if u can convert bin file to text file in VHDL...!!
 


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if you are using modelsim and want to read binary, you can read 1 character at a time from a file.

Code: 
type bin_file_t is file of character;

file my_bin_file : bin_file_t open read_mode is "some_file.bin";
variable buf : character;
variable buf_int : integer;

.....
read(my_bin_file, buf);
buf_int := character'pos(buf);

Modelsim will do this fine and you have full byte access. Other simulators insist you have some obscure file header (ISE Simulator) while others just wont work.
 

do u have any idea which header file is to used while using ISE simulator...!!
 

Nope. I would generally avoid trying to read binary in VHDL. Matlab can read text easily, and so can VHDL.
 

Hey guys... I also want a help. (sorry my bad english)

I want create a test bench for a Filter in VHDL.

For it, I has need generate a file.bin with 10 bits (2^10 = 1024 levels of quantization). [Simulating a "A/D" conversor]

Its easy to make a file.bin in MATLAB
Code: 
fs=fopen('file.bin','w+');fwrite(fs,0:1023,'bit10');fclose(fs);

But, how i can read bit-to-bit in each clock pulse?
I tried it: **broken link removed** but, isn't work...

Do not want to read 2 bytes and need to dispose of 6 bits...

Thx,
 

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