On 8/28/2019 12:40 AM, [email protected] wrote:
> 
> since CRAMPS.bbio has in the first few lines
> 
> overlay cape-universal
> overlay cape-bone-iio
> 
> However there is no cape-bone-io in /lib/firmware, further removing the 
> reference to it in CRAMPS.hal will again produce 
> 
> halcmd loadusr io started
> Waiting for /sys/class/uio/uio0 

These are all legacy tests from when there were actual device tree
overlays that could be dynamically loaded at run-time and it could
take a few seconds for the device nodes to show up.

If the system is waiting for /sys/class/uio/uio0 it means you don't
have the PRUs properly enabled.  Make sure you have the PRU UIO device
(*NOT* remoteproc) enabled via u-boot.  It's the last entry here:

https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_PRU_Options

-- 
Charles Steinkuehler
[email protected]

-- 
website: http://www.machinekit.io blog: http://blog.machinekit.io github: 
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