[time-nuts] FE-.5680A trimming resolution

Javier Herrero jherrero at hvsistemas.es
Sun Jan 29 13:45:31 EST 2012


I'm now gathering the unit self-updating of DDS data, that will take 
somewhat long... so I will try later or tomorrow. Since we have seen 
that the DDS values are reported back in a response to a command, it is 
easy to do without the need to have anything hooked to the SPI bus :)

Regards,

Javier

El 29/01/2012 19:37, Scott Newell escribió:
> At 05:45 AM 1/29/2012, Javier Herrero wrote:
>
>> For example, the following data has been gathered:
>>
>> Serial offset 00 00 00 00
>> DDS A word: 44 02 62 F6 = 1141007094 = 5 313 228.32219 Hz
>> DDS B word: 43 FD CC 8E = 1140706446 = 5 311 828.32085 Hz
>
> Can you do a test at +/- fullscale offset as well?
>
> This is a very exciting discovery.  Nice work!
>




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