[hpsdr] Ethernet as a communications mode

[Eric Blossom]

On Sun, May 14, 2006 at 11:25:08AM +0800, Phil Harman wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Richard,
> 
> Ethernet rather than USB to the boards was considered but you will either 
> need an embedded processor to handle all the DSP processing plus more memory 
> etc.  If you accept that you will need to connect a local PC (this can be a 
> small bare bones unit such as an ITX board) and use that to connect to the 
> Internet for world wide access then the systems becomes much simpler to 
> design, build and maintain.
> 
> 73's Phil...VK6APH

I'm currently looking at GigE for a board I'm working on.  
It's got better throughput than USB and can be placed a lot further
away from the from the PC than you can with USB (e.g., on top of a tower).

If you've got an FPGA, you shouldn't need an external processor, as
long as you stick to dealing with raw ethernet and/or UDP frames.

Eric

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