The Sitara uses a field of pull-up and pull-down resistors to tell it how
to boot.
If you put any LOAD on these pins, and your I/O does NOT have to be
powered, (which would make
things even worse), you will give it the wrong boot commands, and the BBB
won't boot.
Go read the section in the Sys
Thank you Graham. That clears a lot of stuff up for me. It just so happens
that I am using 8 of the LCD data pins for my shield without knowing about
how loading those pins down can result in a disturbance in the booting
process. Since I was not using an LCD, I thought no harm would come from
u
My advice is to read the System Reference Manual. It will save you a lot of
heartache.
Gerald
On Tue, Mar 24, 2015 at 11:14 AM, Khalil Estell
wrote:
> Thank you Graham. That clears a lot of stuff up for me. It just so happens
> that I am using 8 of the LCD data pins for my shield without knowi
