EmbDev.net

Forum: FPGA, VHDL & Verilog Board recommendation for MLBS of min 60MHz


Author: Jack Jill (jackjill)
Posted on:

Rate this post
0 useful
not useful
Hello there!

I need to generate a Maximum length binary sequence (MLBS) with an FPGA 
for a project of mine, which I then have to modulate with a carrier 
signal. The MLBS needs to be at least 60MHz and above frequency. I found 
an old Spartan-3 starter kit and started working on it to try and 
generate such a signal. The problem is that the oscillator frequency of 
the board itself is just 50MHz. Hence its impossible to generate the 
requisite signal of 60MHz.



There is a plethora of options available here and I am confused as to 
which will the the most cost effective board that will serve my purpose. 
I'd appreciate if someone guides me on to the right direction and helps 
me out in this regard.



Regards,

Author: user (Guest)
Posted on:

Rate this post
0 useful
not useful
use the internal pll/dll of the fpga to generate 60MHz from the 50MHz

Author: Jack Jill (jackjill)
Posted on:

Rate this post
0 useful
not useful
user wrote:
> use the internal pll/dll of the fpga to generate 60MHz from the 50MHz

The problem is that I need to generate an MLBS of at least 60 MHz i.e. 
60MHz and above until probably 120MHz. Then I also need to generate a 
carrier signal of say 200Mhz, modulate my MLBS onto the carrier and then 
get the resulting signal from an output pin. This seems highly 
improbable (at least to my weak knowledge) on a Spartan-3 starter Kit.

Reply

Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in.

Rules — please read before posting

  • Post long source code as attachment, not in the text
  • Posting advertisements is forbidden.

Formatting options

  • [c]C code[/c]
  • [avrasm]AVR assembler code[/avrasm]
  • [vhdl]VHDL code[/vhdl]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]




Bild automatisch verkleinern, falls nötig
Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.