..and then there's always the JTAG cable! :) Another option Dave There was a guy in here who consistently talks about toggling GPIOs and LESs. I'D ask him where to place these to shed light on what's going
Sent from Yahoo Mail on Android On Mon, Jan 28, 2019 at 4:10 PM, Charles Steinkuehler<[email protected]> wrote: On 1/28/2019 12:33 PM, Dave wrote: > Thank you; > > Changing init_console did the trick. > > I am now getting console output while booting into linux - For a while. > > Unfortunately instantly after the Linux eqep Linux Printk's console IO > ceases. > > It appears the board is still doing something - as the USR0 and USR2 LED's > are active, > > I tried installing a significantly more minimalist kernel in the event that > it was stalled dealing with some sub critical hardware. > > Is it possible that a setting in the Device Tree is re-directing the > console ? The device-tree doesn't affect the kernel console settings AFAIK. Did you change the getty login console in your root filesystem as well as the kernel console setting in U-Boot? You may just be seeing the end of the kernel output and no login prompt (if you're really lucky). > Is there an absolute bare minimum BBB Linux configuration that has pretty > close to nothing critical except the console enabled ? > I can add things back in until I figure out what is failing. I'm not sure if there's a pre-existing config file floating around, but you can definitely disable most of the AM335x specific drivers if you think they're causing problems. Can you provide the whole serial console boot log? Other eyes might spot something wrong. Also, any chance you can try booting your custom uSD on known good hardware (eg: some other Octavo based board)? That might help isolate what's going wrong. ...and then there's always the JTAG cable! :) -- Charles Steinkuehler [email protected] -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/3a950a18-1a3c-6fcb-660c-414b929cc4f6%40steinkuehler.net. 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/1673937917.2669159.1548715042487%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
