Go to Post Maybe next season I want to develop and test a new metric for FRC scouting: Bumper Quality Rating (BQR). BQR-5: The platonic ideal of FRC bumpers. ... BQR-0: Moderate to heavy use of duct tape. I believe BQR would outperform OPR as a predictor of on-field robot performance. - Nate Laverdure [more]
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Unread 27-02-2004, 13:31
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Re: tether

Quote:
Originally Posted by edomus
does the tether port output a serial signal?
The tether port is undocumented. One thing is certain, you should not connect it to your computer. I would guess that yes, data to and from the RC and OI travel in a serial fashion. However, there's also some high voltage pics in there which carry 12V. I wouldn't play with it
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Unread 27-02-2004, 13:36
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Re: tether

the signal between the RC and the RC radio is RS-422 - which is not the same as a standard PC serial port (RS-232)

there is no indication of what interface spec the tether cable uses, If I had to guess, I would think it over-rides the RS-422 to the radio with a similar interface.

Maybe the best question is, why do you want to know? you can already tether the RC to the OI, and you can already link debug data to your PC with the download cable, so what function are you trying to accomplish by connecting something else to the tether port?!
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Unread 27-02-2004, 16:09
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Re: tether

If anyone finds any documentation on it it would be greatly apreciated
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Unread 27-02-2004, 17:09
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Re: tether

Quote:
Originally Posted by KenWittlief
Maybe the best question is, why do you want to know? you can already tether the RC to the OI, and you can already link debug data to your PC with the download cable, so what function are you trying to accomplish by connecting something else to the tether port?!
Quote:
Originally Posted by edomus
If anyone finds any documentation on it it would be greatly apreciated
Notice how deftly he side stepped the question?
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Last edited by Greg Ross : 27-02-2004 at 19:24.
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Unread 01-03-2004, 22:34
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Re: tether

New question, has anyone tried tethering their bot with the old operator interface? I want to create something smaller than our controll board just for tethering to release us from the bar. I dont know if the tether ports are the same and I dont want to fry anything.
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Unread 01-03-2004, 23:06
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Re: tether

Quote:
Originally Posted by edomus
New question, has anyone tried tethering their bot with the old operator interface? I want to create something smaller than our controll board just for tethering to release us from the bar. I dont know if the tether ports are the same and I dont want to fry anything.
I suspect the tether ports indeed are the same, but it wouldn't work anyway. The data format isn't the same this year, and IFI makes it clear that an old OI won't work with a new RC.
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Unread 06-03-2004, 20:04
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Re: tether

Quote:
Originally Posted by Alan Anderson
I suspect the tether ports indeed are the same, but it wouldn't work anyway. The data format isn't the same this year, and IFI makes it clear that an old OI won't work with a new RC.
actually, the tether ports are not the same. in previous years the OI and RC used a male to female connector, and this years tether is a female to female connector, which i must add in the heat of competition, is more convenient so you dont have to waste 30 seconds switching the cable...
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