On Fri, Nov 21, 2014 at 2:14 AM, bremenpl <[email protected]> wrote:
> Hello there, > I have created a shield for BeagleBone Black on which I have a HDMI output > connected to a dataframer, which goes to the LCD pins of the BeagleBone > Black. Ive tried to copy the functionality of an onboard video circuit. For > that I used the chip used in BeagleBoneMx (TFP410PAPG4). > > The problem now is that the MCU communicates via I2C with the on board > HDMI framer (TDA19988) using I2C bus 0. That bus is not available on the > headers of the board, so I have connected my external framer using I2C bus > 1. > > I face 2 problems: > > - How to make changes in the system configuration to tell the MCU to > either talk to connected devices through HDMI using I2C-1 instead of I2C-0, > or to talk to both? > Well change the bus used: https://github.com/beagleboard/linux/blob/3.8/firmware/capes/cape-boneblack-hdmi-00A0.dts#L109 > > - Second thing, with this modification, will I be abble to still use i2C-1 > bus for userspace applications? I have more devices connected to that bus. > Regards, -- Robert Nelson http://www.rcn-ee.com/ -- 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.
