Altera Cyclone II BOard

[nikhilna007]

my verilog code needs to read input from a text file.
the code was synthesized using Quartus II tool
but when i burn the code to Cyclone II kit . its not working.

is there any problem if i read the input from a text file

 

[FvM]

Reading text file during compilation or at run time? From which storage medium?

 

[ads-ee]

Unless you are using $readmem/$readmemh to load a ROM, any Verilog text I/O reading of files is ignored by synthesis tools.

 

[nikhilna007]

i used $readmemb to read the text file.


still iam not getting the result.
thanks for your reply

 

[FvM]

Processing of design input files and possible problems will be reported in the Quartus compilation report. Memory initialization data are converted to a *.mif file that can be inspected. Everything at your fingertips.

 

[doham]

my verilog code needs to read input from a text file.
the code was synthesized using Quartus II tool
but when i burn the code to Cyclone II kit . its not working.

is there any problem if i read the input from a text file

You can't 'read text file' directly from FPGA. How about instantiating a M10K memory block and initialize it with MIF?

 

[ads-ee]

You can't 'read text file' directly from FPGA.

What!?
[sarcasm_mode]
Sure you can just add a SATA interface to the FPGA and a Nios-II to control it. Then you can write software to pull data off the NTFS/FAT32/FAT16 drive. ;-)
[/sarcasm_mode]

 

[doham]

What!?
[sarcasm_mode]
Sure you can just add a SATA interface to the FPGA and a Nios-II to control it. Then you can write software to pull data off the NTFS/FAT32/FAT16 drive. ;-)
[/sarcasm_mode]

'directly' ?

LOL...

While you're at it, add virtualization so to run full win7 OS too. ;-)

 

[ads-ee]

'directly' ?

LOL...

While you're at it, add virtualization so to run full win7 OS too. ;-)

Come on...now you're getting into the realm of fantasy ;-)...you need a processor with a bit more omph than a Nios-II to run win7...not sure anyone has a soft core processor with that much horsepower (gee, even an i7 has trouble running it).

Now you could run a 'nix on the Nios. I think the NEEK demonstration board uses something like a ulinux and keeps stuff on a memory card.

 

[doham]

Come on...now you're getting into the realm of fantasy ;-)...you need a processor with a bit more omph than a Nios-II to run win7...not sure anyone has a soft core processor with that much horsepower (gee, even an i7 has trouble running it).

oh,... you WERE serious... okay.

Now you could run a 'nix on the Nios. I think the NEEK demonstration board uses something like a ulinux and keeps stuff on a memory card.

BTW, we have this on-going project:
https://code.google.com/p/cubicboard/

A co-worker of mines had Linux (uclinux?) running on NIOSII on CycloneV. Anyone interested please let me know.

 

[FvM]

Beyond off-topic chat, we still don't know what the OP wants to achieve, what he's actually doing and where it goes wrong.

Maybe he's using $readmemb for memory initialization as required and there's an unrelated issue. Maybe he imagines $readmemb to read data at runtime. But if so, from which file on what media?

Unfortunately the OP's posts are pretty ambiguous.