[hpsdr] Latest FPGA code

[Joe Martin K5SO]

Bruce,

In that one case, i.e., the four Mercury board case, the configuration  
was one Metis, four Mecury boards, one Excalibur  (no Penelope).  The  
current values reported are measured values, not theoretical values.

73, Joe K5SO


Begin forwarded message:

> From: "Bruce Beford" <bruce.beford at myfairpoint.net>
> Date: November 9, 2011 2:50:34 PM MST
> To: <hpsdr at lists.openhpsdr.org>
> Subject: Re: [hpsdr] Latest FPGA code
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>> For a system comprising Metis,  Excalibur and Penelope the current  
>> draw
>> from the +5v rails with :
>>
>>    One Mercury board     = 1.53A
>>    Two Mercury boards   = 2.4A
>>    Three Mercury boards = 3.08A
>>    Four  Mercury boards = 3.51A
>
> Since the Atlas bus only has six slots, I assume the scenario with 4  
> Mercury
> boards plus Excalibur, Metis and Penelope is theoretical, not  
> measured? Or
> was Excalibur connected "off-bus" via separate hard-wiring?
>
> Thanks for all the hard work folks have been putting into these
> possibilities!
>
> Bruce Beford, N1RX
>

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