From: <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Friday, September 12, 2014 at 3:50 AM To: "[email protected]" <[email protected]> Subject: [beagleboard] How to change GPIO Mode
> > Hey Forum > I hope you can help me. I'm on a education project and I have some questions. > > I have a problem with the config of the GPIO (I2C-HW-Controller) > > I have two diffrent usecases in my project. > 1. I2C HW-Controller #1 is a master > 2. I2C HW-Controller #1 is a slave > So I have to change the I2C-controller config between the master and the slave > mode. > If it is possible, I should do that while the BBB and his phyton/c++ program > is running. > > Now here are my questions: > * How can I switch between I2C master and slave mode? (Device tree?) > * > * Can I do that while the BBB is running? (Or is a reboot of BBB necessary?) > If its possible give my a nice explanation and not only a code piece. ;-) > I have to learn & understand how all that stuff works. Linux does not support slave mode for either I2C or SPI. Even though the BBB hardware can support SCL being generated on another device, the Linux I2C driver does not support this. Either you have to create your own I2C slave driver or you can do this with the PRU. Regards, John > Thanks a lot > > -- > 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. -- 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.
