I don't think mine has a 5V input, but just the same, don't connect it, only connect the ground between the two units and all the data lines. The analyzer gets it's power from the USB. Seems like a lot of work to extend all those wires, I recommend you just buy a longer USB cable or extension, be sure the USB cable is USB 2.0. An IC clip is a good idea.
Sample rate, I would choose the highest possible. This will give you the finest resolution when looking at the signals. If you are timing slow circuits over a long period of time, I would say that's the only time I would use the slower sampling rate. It goes without say that the higher sampling rate takes more memory, but memory is cheap. If you choose a lower sampling rate, you might miss a glitch pulse.
Date: Wed, 22 Oct 2014 15:02:32 -0700
Subject: Re: [N8VEM-S100:5426] Re: Getting to know your logic analyzer
I broke out my N8VEM Zeta SBC and got the logic analyzer working.
Was able to fire it up and sample address and data lines. Starting to get
the hang of it but still have much to learn.
I only have six inches or so for my probe cable. I'd like to build a longer
cable for the pin grippers. I'm pretty sure we want this as short as possible.
Any ideas what would be a reasonable length? Can I go to 18"-24" ?
The other option is to get an extension USB cable.
A couple operational questions:
1) Do you have to hook up the +5VDC? Seems to work fine without it
2) When I'm capturing samples do I need to select the exact MHz Sample rate (1,2,4,8,12,etc)?
If running a 6Mhz system would 8Mhz be best choice?
On 10/21/14 02:09 PM, nbreeden wrote:
-- Don Caprio ilv...@gmail.com
You received this message because you are subscribed to the Google Groups "N8VEM-S100" group.
To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.