I figured it out.  I have the wrong include file.  I switched code from 
PRU0 to PRU1_1 and should have used:

#include "resource_table_*1*.h"

I was using the *0* version.

--Mark

On Wednesday, June 10, 2020 at 3:26:25 PM UTC-4, Mark A. Yoder wrote:
>
> I have an rpmsg example[1] that runs on the BB Black.  It creates 
> */dev/rpmsg_pru30* which allows the ARM to talk to PRU0.
>
> I have a parallel example[2] that's supposed to run on PRU 1_1 on the AI 
> and do the same thing.  I thought it was working last year.
> Now, it doesn't even create */dev/rpmsg_pru30.* 
>
> Any ideas what might have broken since last year?
>
> I'm running the current image (BeagleBoard.org Debian Buster IoT Image 
> 2020-04-06) on the Black and the AI.
>
> --Mark
>
> [1] 
> https://github.com/beagleboard/cloud9-examples/blob/v2020.01/BeagleBone/Black/pru/neopixelRpmsg.pru0.c
> [2] 
> https://github.com/beagleboard/cloud9-examples/blob/v2020.01/BeagleBone/AI/pru/neopixelRpmsg.pru1_1.c
>

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