Hello, With my BBB I've been using a usb wifi device that that appears to crash unrecoverably occasionally, but always works again if I simply unplug it and plug it back in.
With this in mind I've been looking for ways to disable the USB host power output and re-enable it, in order to programmatically reset any usb device I have connected. Looking at the BBB schematic there is a 'USB1_DRVVBUS' output from the uC which controls the USB host 5V output. Does anyone know if it is possible manipulate this pin as a gpio in order to disable/re-enable the 5V USB output, or is this necessarily controlled by the USB phy, with any manual control breaking the USB functionality. The document spruh73h.pdf describes how after asserting the 'USB1_DRVVBUS' output the USB phy looks for the 5V to come up, and if not detected within 100ms it flags a fault - possibly once this has been faultlessly enabled this problem is no longer looked for - soed anyone have any idea before I possibly start breaking things? Regards, Andrew Glen. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
