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Unread 09-02-2015, 22:30
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Chris_Elston Chris_Elston is offline
Controls Engineer
AKA: chakorules
FRC #1501 (Team THRUST)
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Re: Talon SRX Missing Encoder Counts in Labview

Quote:
Originally Posted by Ether View Post
It wouldn't hurt to try. But I discussed SRX quadrature decoding with Omar. SRX decodes quadrature encoder in hardware, and shouldn't have any trouble with your S5-1000.


Ether, do you think we might have a bad sensor then? I do have some brand new S5 coming. I selected 360 CPR and 250 CPR this round.

We have QTY (4) S5-1000, so far two of them are missing counts...the second one we installed today seemed to be worst than the first one. An O-Scope tomorrow might be able to tell alittle bit about what the encoders are doing.

ANOTHER THOUGHT...

Would it help to change the Encoder Status Frame from 100 ms to 20 ms? What is the intent of the Status Frames in the Talon's?

section: 20.3. Quadrature Encoder Status
The Quadrature Encoder Status frame has a default period of 100ms.

Looks like it can be adjusted to 20 ms. Would that improve refresh rates?
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