Chief Delphi - New PDB info?

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Electrical (http://www.chiefdelphi.com/forums/forumdisplay.php?f=53)

- - New PDB info? (http://www.chiefdelphi.com/forums/showthread.php?t=129378)

apalrd

09-05-2014 13:32

Re: New PDB info?

Quote:

Originally Posted by yash101 (Post 1384005)

I will have to give that to Team NI because it now really starts to be clicking in that NI has been designing products specifically for FRC. We never needed the cRIOs to be strong enough to withstand the worst of the collisions because the G-Forces hardly become that high!

Quote:

Originally Posted by Andrew Schreiber (Post 1384046)

We have experienced sufficient force to dislodge modules from the cRio chassis. On that robot, we glued the locking tabs in place.

adciv

09-05-2014 16:37

Re: New PDB info?

St. Louis+Cell Phone+Pit right next to the NI Booth

Joe Ross

10-05-2014 11:19

Re: New PDB info?

Quote:

Originally Posted by Tungrus (Post 1383750)

Hope CTRE does some rigorous testing...including overloading and environmental testing to make sure that PDB holds up for short term overloads and is not affected by temp changes.

What temperature ranges would you recommend testing?

Gdeaver

10-05-2014 12:43

Re: New PDB info?

Automotive qualified would be nice but won't happen because of cost.
The talons initially used the on chip clock which varied allot. I believe they went to any off chip oscillator. I've seen many teams not put fans on them and had no problems. Of course they trash talk CRE for making C--P and on and on. Put fans on the talons period. We use 20mm EBM fans. Never killed a talon and our students have tried. No matter how much testing NI and CRE do, we won't know how good a product it is until we put it into the hands of thousands of high school students. Nothing beats real world testing by students.

yash101

10-05-2014 18:02

Re: New PDB info?

Quote:

Originally Posted by RufflesRidge (Post 1384008)

Have you ever measured the impact forces of an FRC robot? I believ you'd find they can be higher than you think.

https://decibel.ni.com/content/docs/DOC-30419

RS232 on the board, TTL serial on the MXP. 1x I2C and 1xSPI on the board, 1 more of each on the MXP. 2x USB host, potentially 1 taken up by a USB radio (depending on wireless solution).

The alpha libraries look very similar to the existing libraries, so they'll be just as easy to access as they are right now.

Standard Java 8 SE Embedded for ARM

From everything I've heard, I'm not hopeful about software for non-beta teams before kickoff.

I know that the G-Forces are high, but we don't need an almost solid metal controller!

adciv

10-05-2014 18:03

Re: New PDB info?

Isn't automotive grade from -55C to +150C? I'd settle for -20C to 71C and a 20g half sine shock.

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