Michael McCarty

High to NANDF_RB3 causes lockup in iMX.51

Discussion created by Michael McCarty on Dec 8, 2011
Latest reply on Dec 9, 2011 by Michael McCarty

Hello Everyone,

   Hopefully i'll get a response to this question ? 

   

   We are using the pad NANDF_RB3 for a gpio signal and this signal is sometimes high when the board starts. It is high from external circuitry connected to the board. As long as the signal is low for about a second while the imx51 boots there is no issue. 

 

   why would having this pin high cause the whole module to lock up ? I've read in the datasheet and note that this pin is used in a daisychain could this be causing the issue ? 

 

   thanks for your time, and any response is welcome!

Outcomes