[email protected] writes: > In the BBB System Reference Manual the P8 and P9 pinouts are > documented with 7 modes for each pin which provide different uses for > the pins. > > All of the actual software and descriptions I can find about the BBB > hardware just talk about the Device Tree and Device Tree overlays. I > have already (sort) begun to understand the Device Tree system and I > have actually done a (trivial) recompile of the Device Tree to change > one of the I2C clock frequencies. > > Do the modes in the manual have any relevance at all now? I.e. can I > actually start the system in a specified mode? Or are they just > history, or what? > If you are writing a device tree you will need to refer to the pin modes to configure the pinmux.
Cheers, - Ben
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