[context is SERDES inputs to FPGA]
> Also, one has to count the number of 0->1 transitions in each word, such
> that the event counter can be accumulated with the contribution from each
> word.
That gets complicated. My straw man would be to get a single transition per
word working first.
L
I made a somewhat similar deal on ebay. The ad was for a Radio Shack
Pro-2042. The photo was for the Opto Electronics version of the radio,
which added a serial port for computer control. The only problem was
another bidder noticed the same thing. I got it, though at a premium
over the stock ra
On 01/07/2011 06:52 AM, John Miles wrote:
Not much -- I just increased the stack space in an effort to fix (or at
least track down) an issue I'm seeing on one machine here. Also renamed the
desktop shortcuts to clarify that one will access a remote unit and the
other will access a local unit on
Not much -- I just increased the stack space in an effort to fix (or at
least track down) an issue I'm seeing on one machine here. Also renamed the
desktop shortcuts to clarify that one will access a remote unit and the
other will access a local unit on COM1.
-- john, KE5FX
> -Original Messa
On Jan 6, 2011, at 4:38 PM, Bob Bownes wrote:
> After the discussion a few weeks ago, I started looking for a 5370. In
> [...]
> Only a full checkout will tell, but so far, I'm pretty optimistic.
Wow, Bob -- great story and great price. Nice pickup on finding photo
evidence of the PS voltage switc
On 07/01/2011 15:31, k6...@comcast.net wrote:
bob k6rtm in silicon valley -- looking for grain of wheat lamps for an hp 8660C
Question. why not replace them with LED's ?
I've replaced incandescent lamps in all sorts of equipment with LED's,
looks much nicer :)
regards
Tim
--
VK2XTT :
Okay, I'll bite -- what are the changes in the new Lady Heather 3.0 Beta dated
5 Jan?
bob k6rtm in silicon valley -- looking for grain of wheat lamps for an hp 8660C
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> > I am currently playing around with some designs in a spartan-6 and a
> > spartan-3e. The spartan-6 design has more promise resolution
> wise, but it
> > is also not very hobby friendly (bga package). So if this is ever to be
> > built using hobby level soldering skills it will be spartan-3e. T
On 01/07/2011 12:42 AM, Gerhard Hoffmann wrote:
Am 07.01.2011 00:24, schrieb Magnus Danielson:
For a SERDES to be useable as a high frequency input, the Rx SERDES
needs to be able to use the reference clock as clock source rather
than doing clock recovery. While the SERDESes I have seen is able
Am 07.01.2011 00:24, schrieb Magnus Danielson:
For a SERDES to be useable as a high frequency input, the Rx SERDES
needs to be able to use the reference clock as clock source rather
than doing clock recovery. While the SERDESes I have seen is able to
do that, one always want to check that det
After the discussion a few weeks ago, I started looking for a 5370. In
answer to the question about affordable 5370's, yes, there are sub $200
5370's out there. I just acquired one from eBay. Listed as 'won't power up'.
Close look at the pictures showed intact Agilent calibration stickers on the
to
On 01/06/2011 11:54 PM, Gerhard Hoffmann wrote:
Am 06.01.2011 22:45, schrieb Gerhard Hoffmann:
I was thinking about abusing the built-in SERDES-Units in the Spartan6
as a prescaler. It would
be necessary to sort out the transitions after the 1:16 gearbox, but
given the amount of logic in a Spart
Am 06.01.2011 22:45, schrieb Gerhard Hoffmann:
I was thinking about abusing the built-in SERDES-Units in the Spartan6
as a prescaler. It would
be necessary to sort out the transitions after the 1:16 gearbox, but
given the amount of logic in a Spartan6
that should be possible. While I have not se
On 01/06/2011 08:02 PM, Tijd Dingen wrote:
To whom it may concerns,
Currently I am building a DIY frequency counter. Since this is my first serious
counter project I am trying to keep things simple, hence It Will Not Be State
Of The Art. Maybe a not-too-difficult hobby level counter will be of
Didier,
Thanks. I doubt Hittite will send me a couple of samples for "this one and
that one and oh that one", but you do raise a good point. I can always try! :)
With respect to fpga development boards, for this project I am all set! I am
currently tinkering with these two boards:
http://www.dig
Am 06.01.2011 20:02, schrieb Tijd Dingen:
Also note the glaring lack of a prescaler. This can and will be added at a
later date to extend the range of the counter. For now I just want to get the
basics working properly first. On the subject of prescalers, does anyone know
where to order Hittit
Hi Tijd,
what about MC12026A ?
Farnell No. 1468725, <10 EUR single quantity
1.1 GHz div 8, 9, 16 or 17
Project sounds great!
73s Achim, DH2VA
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Arthur,
you mention that the 204 can select 60 KHz by thumbwheel. Do you have a
schematic of that synthesizer? I know they had a 60 KHz down converter I have
modified my unit and in my TI days modified quite a few for our cal labs
by setting the oscillator to 122 KHz dividing it by two and d
Fred,
Good luck on your project, it sounds exciting.
I have been able to get a couple of samples for free from Hitite. That was
several years ago (before the recession...)
Regarding FPGA, Actel has a demo board for their SmartFusion device (big
flash-based FPGA + Cortex M3 processor + 256k pro
Hi Fred: prescalers in convenient package for experimentation at RFBay.
SMA connectors, though.
Don
Tijd Dingen
> To whom it may concerns,
>
> Currently I am building a DIY frequency counter. Since this is my first
> serious counter project I am trying to keep things simple, hence It Will
> Not Be
To whom it may concerns,
Currently I am building a DIY frequency counter. Since this is my first serious
counter project I am trying to keep things simple, hence It Will Not Be State
Of The Art. Maybe a not-too-difficult hobby level counter will be of interest
to some, so I'd thought I'd post h
There were quite a few variations of the Tracor 599 receivers. Actually the
599K had the synthesizer built into the 599-204 receiver module and had
a thumbwheel switch that you could use to to select 60.0Khz for WWVB
reception plus a srtipchart recorder to plot the phase difference.
The 599-201 re
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