There are a lot of useful guides and manuals all over the net for using the PRUs on the BBB. Ex: http://processors.wiki.ti.com/index.php/PRU_Training:_Hands-on_Labs#LAB_4:_Introduction_to_Linux_driver But none of them seem to be applicable to the newer images/kernel. Either the sysfs setup is wrong or those interfaces just don't exist.
What is the best way to get started on PRU programming, *using the latest kernel*? I don't want to go back to an older image as I need the improved network latency provided by the 4.14 kernel (getting almost 30-40us better latency over UDP, don't know how or why). Image info below. dogtag:[BeagleBoard.org Debian Image 2017-10-10] bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2017.09-00002-g0f3f1c7907 ] kernel:[4.14.17-ti-r32] nodejs:[v6.12.3] uboot_overlay_options:[enable_uboot_overlays=1] uboot_overlay_options:[disable_uboot_overlay_video=1] uboot_overlay_options:[disable_uboot_overlay_audio=1] uboot_overlay_options:[disable_uboot_overlay_wireless=1] uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-4- TI-00A0.dtbo] uboot_overlay_options:[enable_uboot_cape_universal=1] pkg:[bb-cape-overlays]:[4.4.20180126.0-0rcnee0~stretch+20180126] pkg:[bb-wl18xx-firmware]:[1.20170829-0rcnee2~stretch+20180104] pkg:[firmware-ti-connectivity]:[20170823-1rcnee0~stretch+20170830] -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/565798e9-fe3e-452f-8d9f-29ac3c02f538%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
