I have a beeper which is controlled by GPIO P9.12. The problem is that the
default state of this pin is high (I think this is the problem). So I have
a long and annoying beep when the BBB boots. This stops when my programm is
loaded, then everything works as it should.
Is there a way to set
Not that I know of. The device tree can change the pin config to default low
but that does not take effect till boot up so there would still be several
seconds in the HW default condition. I just recently went through something
similar where I had to redesign a lot of stuff on my own PCB
can burn up a GPIO (or even the whole chip)
just by trying to drive an LED without a transistor or IC buffer.
From: het.oos...@gmail.com
Sent: Thursday, April 17, 2014 2:19 AM
To: beagleboard@googlegroups.com
Subject: [beagleboard] Change default state of GPIO pin
I have a beeper which
