Chief Delphi - Maximum couter rate into the RoboRIO?

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

- Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)

- - Maximum couter rate into the RoboRIO? (http://www.chiefdelphi.com/forums/showthread.php?t=153888)

taichichuan

18-01-2017 21:39

Maximum couter rate into the RoboRIO?

Given the counter class/encoder class uses the FPGA for counting events, does anyone know what the maximum counter rate is per second into the RoboRIO? We've got a lot of potential encoders and high-speed tachometer inputs and I want to make sure we're not maxing out the RIO.

TIA,

Mike

Ether

18-01-2017 21:42

Re: Maximum couter rate into the RoboRIO?

Quote:

Originally Posted by taichichuan (Post 1633255)

Given the counter class/encoder class uses the FPGA for counting events, does anyone know what the maximum counter rate is per second into the RoboRIO?

DIO inputs are sampled at 40MHz and timestamped with a 40MHz clock.

engunneer

18-01-2017 21:44

Re: Maximum couter rate into the RoboRIO?

and they're implemented in parallel, so 40MHz per channel.

taichichuan

18-01-2017 21:48

Re: Maximum couter rate into the RoboRIO?

Great! Thanks! I couldn't find that documented anywhere in the RoboRIO specs.

Mike

All times are GMT -5. The time now is 11:28.