**** BEGIN LOGGING AT Thu Mar 30 03:00:02 2017 Mar 30 03:10:56 hello , I am trying to build LKM in BeagleBone black first time but can't find a way to install correct kernel headers. My kernel version is beaglebone 4.4.54-ti-r93 . Where to find kernel header for this ? Mar 30 03:11:32 I tried this : sudo apt-get install linux-headers-`uname -r` but it showing error -> Unable to locate package linux-headers-4.4.54-ti-r93 Mar 30 06:15:40 rishabh_bb: still here? Mar 30 06:15:47 rishabh_bb: noticed you left #beagle Mar 30 06:16:17 rishabh_bb: did you do 'sudo apt-get update' first? Mar 30 06:17:28 https://rcn-ee.com/deb/jessie-armhf/v4.4.54-ti-r93/ seems to just have a patch Mar 30 06:18:52 https://rcn-ee.com/repos/debian/pool/main/l/linux-upstream/ doesn't seem to have -ti headers. Mar 30 06:19:22 or at least not many Mar 30 06:19:48 I'm guessing you'll need to inquire with rcn-ee. Mar 30 06:20:07 send a note to beagleboard at googlegroups (.com) Mar 30 06:21:25 might need to apt-get install the latest -ti kernel-image/headers together Mar 30 06:22:33 can also build the same versions using his build repo Mar 30 06:22:43 *just the kernel Mar 30 06:37:44 jkridner : Ok, I will . I did sudo apt-get update' first. Mar 30 06:50:16 jkridner: nerdboy: Thanks for help. Mar 30 06:55:58 jkridner: I found headers on this link !! https://rcn-ee.com/repos/debian/pool/main/l/linux-upstream/ Mar 30 06:56:10 Thanks Mar 30 06:56:49 there should be deb packages for each kernel Mar 30 06:57:33 one with kernel image, one with headers, one wot modules i think Mar 30 06:58:09 eh, wot? mate? Mar 30 07:04:15 yes , guess I just don't know where to look for ,I tried to search on rcn-ee.com but......! . Mar 30 07:21:41 apt-cache search headers ? Mar 30 07:22:18 might need a pipe and and grep aftare that... Mar 30 07:22:37 *after even Mar 30 08:22:38 hey guys! :) Mar 30 16:38:19 hi everybody!!!! Mar 30 16:39:50 nerdboy: and ds2: and other mentors, as asked I have added new section in proposal so please provide your views, that I can mention in proposal finally Mar 30 16:39:54 http://elinux.org/GSoC2017_sonic_anemometer_proposal#Requirement_Analysis Mar 30 16:41:00 As last date approaches soon, please suggest any further improvements and your view on current status of proposal Mar 30 17:02:18 thetransformerr: what is your conclusion about the max daq bandwidth vs. the speed of shuffling the data out? Mar 30 17:11:21 A gap of 35 ns is required with round robin arrangement in PRUDAQ, and other overhead costs like data transfers adds up to max 2-3 microseconds but the time of flight as calculated takes about 1795 microseconds Mar 30 17:12:17 hence about 2 milli seconds is I think the speed of transferring data out from pru Mar 30 17:12:38 for a one set of calculation Mar 30 17:13:35 the device can provide high refresh rate than 20 Hz, I just assumed 20 as a reference point Mar 30 17:17:24 As the memory transfer rate between user and Pru space is slow compared to DAQ or Pru , I couldn't make a assumption about delays that would happen after PRU in calculation of wind speed Mar 30 17:40:58 can you show the data flow you have in mind? Mar 30 17:52:06 Need some clarifications regarding the project "PRUs to offload processing of raw data from on-board Peripherals", it is mentioned that : The goal is to be able to access on-board peripherals like the McSPI, McASP etc from the PRUs Mar 30 17:52:23 Does it mean that all other peripherals like PWM subsystem, USB, UART,I2C, CAN ,Touchscreen + LCD Controller Mar 30 17:53:00 plz mention the other included peripherals which i didn't mention Mar 30 18:10:46 i think it means "support as many as possible" Mar 30 18:12:41 Yes. As many as possible. Mar 30 18:14:36 Look into the am335x manual for other peripherals. Mar 30 18:16:49 Does the project imposes any specific Linux Distribution and Kernel for its use? Mar 30 18:17:22 you mean on the beagle? Mar 30 18:17:30 yes Mar 30 18:18:20 not afaik but latest TI-dev kernel and the default debian would make sense Mar 30 18:22:02 what does this line means "The project will basically involve developing Drivers to reserver the device on behalf of the PRUs. " Mar 30 18:26:11 sounds like a driver stub to enable vs. the std kernel driver Mar 30 18:32:04 what will off-load data processing actually do ? I mean any real world example ? Mar 30 18:35:42 spi slave project from last year maybe? Mar 30 18:35:59 should be some others too ... Mar 30 18:40:12 I have came upon many situations in my Robotics Projects where the number of sensors needed to achieve task was greater enough for one Arduino to handle, so I use to offload the data processing by dividing some work by adding one more arduino and giving out signals to other arduino to manage tasks Mar 30 18:41:07 In case of BBB we have PRUs to manage things fast enough removing the need of other MCU so offloading is good option Mar 30 18:52:22 Ok , In simple terms it's like you need to connect 10-15 analogue sensor for say line following and your board just provide support for 5 Analogue I/O Mar 30 18:52:46 so you added ther board which have more I/O and it measure it's value Mar 30 18:52:58 when something suspicious happen like sensor value went low or up beyond some set value then it should give signal to other main board Right ? Mar 30 18:57:11 In this case (BBB) we have to read data of McSPI, McASP etc from the PRU process data and then when needed give message to main processor . Am I right ? Mar 30 18:58:39 no ,like task requires line following + motor controlling + 3 quadrature encoders with resolution of 1028 where wheels linear speed are about 1.5m/s where amny subsystem comes in role Mar 30 18:59:53 for these types of task i prefer offloading so that work can be divided between 2 MCUs **** ENDING LOGGING AT Fri Mar 31 03:00:01 2017