AnsweredAssumed Answered

Sense USB cable connected FRDM-K64F

Question asked by giacomopetrini on Jan 28, 2015
Latest reply on Feb 4, 2015 by giacomopetrini

Using KSDK 1.1, KDS 2.0


I'm developing a data-logger using the FRDM-K64F

Basically I want a "double" application:

- normal behavior: data logging

- alternate behaviour, when program starts with USB cable connected (to the K64F USB connetor): MSD (so I can read the files saved on the SD card when in data-logging mode)


The data logging works, and I tried the MSD example (and it works).


Now I'm trying to merge the two.


What I wish to do is choose between the two mode at startup: if the USB cable is not conneted -> datalogging, if the USB cable is connected (so the board is connected to a PC) -> MSD.


Some ideas how to do that?


Thanks Regards Giacomo


PS: what throughput I should expect tranfering data from the SD card to a PC (using USB-MSD)?