Re: [Discuss-gnuradio] Re: Help with verilog: write_count

[Eric Blossom]

On Fri, Nov 17, 2006 at 01:02:31AM -0800, seph 004 wrote:
> Hi
> 

> Thanks for responding. So WR & ~write_count[8] should be able to
> serve as a write enable for a ram block?

> Also, while testing with one of the unmodified FPGA builds, I found
> that the have_space control line would sometimes go to zero even
> though I am only sending small amounts of data (60 bytes for
> instance). In the original build, have_space would only go to zero
> temporarily if the FIFO became full. So why then does this happen
> even when sending small numbers of samples? Shouldn't the 4k FIFO
> never become full under those circumstances?

Using the standard host code, there's no such thing as sending 60
bytes from the host.  We always send 512 byte packets across the USB.

Not sure what you are doing...

Eric