search

beagleboard / linux

The official Read Only BeagleBoard and BeagleBone kernel repository https://git.beagleboard.org/beagleboard/linux
http://beagleboard.org/source
Other
725 stars 563 forks source link

The device on which the BOOT button was not found #197

Closed flightxgf closed 5 years ago

flightxgf commented 5 years ago

Hello,The Linux version I use is 3.8.13-bone73.The hardware is beaglebone black. When I power on and press the BOOT BUTTON BUTTON, I can select SD and eMMC to start the system, but when I enter the system, the name of the BOOT BUTTON device cannot be seen under /dev/ and /sys /devices.

I want to know whether the system works when I press and lift the BOOT BUTTON after the system is up. How can I find the information like /dev/s2boot and /ses/devices?

Looking forward to your guidance. Thank you very much for your help Best regards,

RobertCNelson commented 5 years ago

@flightxgf , the Boot Button is tied to a "P8.43" on the header, just export that pin and check the value your self...

Regards,

flightxgf commented 5 years ago

@flightxgf , the Boot Button is tied to a "P8.43" on the header, just export that pin and check the value your self... Regards,

Thanks. How do I export it?

Looking forward to your guidance. Thank you very much for your help Regards,

flightxgf commented 5 years ago

@flightxgf , the Boot Button is tied to a "P8.43" on the header, just export that pin and check the value your self... Regards,

flightxgf commented 5 years ago

@flightxgf , the Boot Button is tied to a "P8.43" on the header, just export that pin and check the value your self... Regards, @RobertCNelson Hello, Robert, when the system is up, I tried all kinds of methods but could not get the value of the p8.43(SYS_BOOT) button, may I ask what I should do? Thanks。