**** BEGIN LOGGING AT Wed Aug 10 02:59:56 2022 Aug 10 09:31:58 Hi, I am getting this error while running LEDscape library in my beaglebone black: pru_init:44: prussdrv_open open failed Aug 10 09:31:58 Can someone help me to fix this error? Aug 10 09:34:35 Angad: I replied to you last time you were here: https://libera.irclog.whitequark.org/beagle/2022-08-08#1659961628-1659962094; Aug 10 09:36:10 Sorry i missed your message Aug 10 09:36:53 I will try and tell you know. Aug 10 09:36:53 Thanks zmatt Aug 10 10:19:00 thanks, the error is gone but not able to figure out which pins im supposed to connect my leds to (P9_22 isnt working). thanks for the help Aug 10 10:22:10 I don't really know much about LEDscape or what pins it uses for what, but be sure the pin(s) used are pinmuxed appropriately, e.g.: Aug 10 10:22:17 config-pin P9_22 pruout Aug 10 10:22:53 in general, config-pin PIN MODE where MODE is "pruout" for outputs used by PRU or "pruin" for inputs used by PRU Aug 10 10:24:04 ehh, but P9_22 has no pruout/pruin functionality though, you sure you got that right? Aug 10 10:27:19 was following this https://beagleboard.org/static/prucookbook/#_neopixels_5050_rgb_leds_with_integrated_drivers_ledscape Aug 10 10:28:04 oh it looks like for ws2812 it uses normal gpios rather than dedicated pru outputs Aug 10 10:28:13 I guess because ws2812 is a slow enough protocol Aug 10 10:28:24 so in that case you don't need to do anything with config-pin Aug 10 10:28:38 but you probably need to configure the gpio(s) as output Aug 10 10:29:41 you're using the Yona-Appletree fork of LEDscape? Aug 10 10:32:15 Thanks, Now its working Aug 10 10:32:19 Thanks a lot Aug 10 10:32:22 ok! Aug 10 22:14:24 I am made it back! Aug 10 22:14:50 Yes, I am! Aug 10 22:21:10 Now...down to beeswax. Um, has any person in life, esp. in this board, held the EVEs on the BBAI in use? Aug 10 22:24:50 or has anyone used the DSP(s) on the BBAI for anything other than rtos? Aug 10 22:26:22 I found DSPlib but it is for the rtos on the BBAI, e.g. the ICE unit actually most likely. Aug 10 22:28:45 Anyway, just a general question... Aug 10 22:29:07 I am trying to sneak some info. from you if it is you that knows about these co-processors. Aug 10 22:30:52 I have forty million docs. on these things (TOO MUCH). I will never be able to round them all together into an actual application. Aug 10 22:31:27 Anyway, that is the plight of the day. Geaux Cajuns. **** ENDING LOGGING AT Thu Aug 11 02:59:56 2022