The datasheet tells you the default for all the pins on power up. Some are high and some are low. Until the SW changes that, they stay and the preset levels.
http://www.ti.com/product/am3358 Gerald On Tue, Dec 15, 2015 at 12:04 PM, Bill Gray <[email protected]> wrote: > Hi, > > I'm developing a system that uses PRU 1 to send a PWM to a switched mode > power converter. > > When I first turn the system on, I want the PWM signal to be low. If the > pin is high, I will pretty much surely blow my mosfets as current surges > through my circuit. > > For some reason, when I first turn things on the pin runs to high... I'm > not sure why. > > This is before I start messing around with the device tree or anything. > Cold boot. I apply power and even before the LEDs light up I can see that > the pin in question runs high. > > Is there anyway I can control this behavior? > > Thanks, > > Bill > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Gerald [email protected] http://beagleboard.org/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
