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Cube Central
May 18, 2018, 4:57:50 PM5/18/18
to LiNC80
Howdy,
I snapped a shot of the clock signal on my LiNC80 SBC. I'm aware that this system uses a different type of source for its clock, being an oscillator rather than a crystal as is on the RC2014.
Does anyone think that this is a measurement artifact somehow? I'm still learning, and would appreciate any ideas. So far, the system seems stable and unconcerned with the clock signal this way. I would be happy to repeat the test if anyone would like me to try something. Cheers!
-Randal (at CubeCentral)
Cube Central
May 18, 2018, 9:19:14 PM5/18/18
to LiNC80
I snapped a better shot of the clock signal - this time with better settings on the scope and the addition of a terminating resistor:
Much better. I was sure that most of the bad signal was an artifact of the scope and how it was being measured. I'll play around some more to see if I can get rid of the last bit of it, but it looks worlds better now :) Cheers!
-Randal (at CubeCentral)
Cube Central
May 18, 2018, 9:43:18 PM5/18/18
to LiNC80
PS: Ignore the Voltage measurement on the 2nd trace, it's not right due to the extra resistance on the line, it's correctly at around 5V max.
Jon Langseth
May 19, 2018, 6:35:43 AM5/19/18
to LiNC80
Ah, I see you answered yourself. The signal in your previous shot looked much like added reflections from a probe to me :)
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