On Sun, Feb 25, 2018 at 11:08 PM, Udit agarwal <[email protected]> wrote: > Hi, > So, the error turned out to be due to missing dts only, after building the > scripts again with FDT, both the I2C sample code(Logs:here), > media01(Logs:here) example worked flawlessly, and thus i was able to read > sd-card data. What could be my next possible task on libbsd? > Moreover, I tried building wifi sample app as well, but i have Atheros > AR9271(Firmware name: ath9k_htc/htc_9271-1.4.0.fw) wireless card. Following > sichen's blog posts(here) i tried building support for my wireless card, but > it looks like FreeBSD itself lacks support for this( as mentioned here ) > Is there any other way, apart from using FreeBSD for generating support for > my wifi card?
I know you said "apart from using FreeBSD" but there is a good chance that partial support for your card is lying around in FreeBSD HEAD. If you're really keen you could go on the [email protected] mailing list and ask. Alternatively you pop onto IRC. Adrian and the other guys on there are the ones that can help you out. For What It's Worth, Russ > Moreover, regarding libbsd documentation, i am keeping note of every step, > and will soon update the document(libbsd.txt). > > Thanks, > Udit Agarwal > > On Sun, Feb 25, 2018 at 11:15 PM, Russell Haley <[email protected]> > wrote: >> >> Sorry for the top post. >> >> Dts file in freebsd tree are here. The Dts files are imported from Linux >> for compatability. >> >> https://svnweb.freebsd.org/base/head/sys/gnu/dts/arm/ >> >> Russ >> >> Sent from my BlackBerry 10 smartphone on the Virgin Mobile network. >> Original Message >> From: Christian Mauderer >> Sent: Sunday, February 25, 2018 2:32 AM >> To: Udit agarwal; Users >> Subject: Re: GSoC'18-Introduction >> >> Am 25.02.2018 um 08:41 schrieb Udit agarwal: >> > Hi, >> > I did build libbsd for beagleboneBlack and executed selectpollkqueue01 >> > test successfully.(Logs:here >> > <https://gist.github.com/madaari/ae7b3334514a9aec3b063eaa3a0dcd05>) >> > However, while trying to access SD card, media01 test failed with an >> > error "fatal source: 9 (RTEMS_FATAL_SOURCE_EXCEPTION) " (Logs:here >> > <https://gist.github.com/madaari/c6d524bc06e896359f9535d90c0a447a>) >> > I tried debugging the script, by putting printf statements in various >> > functions, but it seems like it's failing even before entering >> > test_main(). >> > Also, is there a better method with which we can debug RTEMS scripts? >> > >> > Thanks, >> > Udit Agarwal >> >> Hello Udit, >> >> it's great that you can already compile and run some of the libbsd >> examples. >> >> >> Regarding your problem with the SD card: Note that the BBB BSP uses the >> flattened device tree (at least the libbsd on BBB does). Therefore you >> have to load a dtb too. My U-Boot boot lines looks like follows: >> >> fatload mmc 0 0x80800000 rtems-app.img >> fatload mmc 0 0x88000000 am335x-boneblack.dtb >> bootm 0x80800000 - 0x88000000 >> >> I create a SD-Card image with a script that is based on one that is (or >> was) contained some time back in the BSP. You can have a look here: >> >> >> https://gitlab.com/c-mauderer/rtems-bbb/blob/master/build/create-sdcardimage.sh >> >> The script does a lot of things that are not necessary any more (like >> copying a U-Boot to the SD card). Basically the necessary points would >> be to create a image and an uEnv.txt (with the lines from 78 to 83). You >> can use the dtb file that is provided by a FreeBSD or a Linux for BBB. >> >> >> Regarding debugging the application: I would strongly recommend to use >> some kind of hardware JTAG debugger. Some Beagle Bone variants have an >> on-board debugger (I think mainly the older white one). For others you >> can use hardware debuggers like quite a number of adapters supported by >> OpenOCD (FlySwatter2, simple FTDI-based ones, ...), Segger J-Link (in >> your case the EDU version) or whatever you find that can debug the BBB. >> >> It may be possible to use the libdebugger as a serial debugger. But I >> never used it so I'm not sure how well you can debug through the libbsd >> with it. I'm also not sure whether it works for the BBB. Chris Johns >> added the ARM support some time back. Maybe he can give you any hints if >> you want to try libdebugger. >> >> Best Regards >> >> Christian Mauderer >> >> > >> > On Fri, Feb 23, 2018 at 11:25 PM, Christian Mauderer <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > Am 23.02.2018 um 05:17 schrieb Udit agarwal: >> > > Hi, >> > > Thanks for your help mentors, >> > > Since last time, I have managed to modify and execute hello world >> > > application on both the platforms, my local machine(Ubuntu 14.04) and >> > > BeagleBone Black. >> > > I have attached the screenshots and patch file as proof and detailed >> > > logs can be found on these(1 >> > > <https://gist.github.com/madaari/8aae37012d0d175b859c6471a5b13248 >> > <https://gist.github.com/madaari/8aae37012d0d175b859c6471a5b13248>> >> > and 2 >> > > <https://gist.github.com/madaari/a7f1d223fb0513e4890025fd1ba6184d >> > <https://gist.github.com/madaari/a7f1d223fb0513e4890025fd1ba6184d>>) >> > gists. >> > > Moreover, I went through all the mentioned projects, and found a few >> > > of >> > > them(Like extending support for PRU, integration of networking stack >> > > ,porting RTEMS on PocketBeagle etc) really interesting and doable >> > > withing the given time constraint! >> > > So, i thought of starting off by studying a bit about the networking >> > > stack, its implementation etc. Please recommend few resources from >> > > where >> > > i can explore this. >> > > >> > > Regards, >> > > Udit agarwal >> > > >> > >> > Hello Udit, >> > >> > it's great that you already have build and successfully executed the >> > example on BBB. >> > >> > Regarding the network stack. First of all: Note that there are at least >> > three network stacks in RTEMS: >> > >> > 1. The "old" one which is integrated into the RTEMS sources. This one >> > exists since quite some time in RTEMS. It is a fork of a really old >> > version of the FreeBSD network stack and it has been heavily adapted >> > during the time. I think there is a manual regarding this stack on the >> > docs.rtems.org <http://docs.rtems.org>. It has only IPv4 support. >> > >> > 2. The "new" one which lives in it's own libbsd repository. That one is >> > a fork of the latest FreeBSD development version. One of the important >> > points during the development has been that the sources should be as >> > close as possible to the upstream FreeBSD sources. This makes it simpler >> > to keep up to the FreeBSD development. This one can IPv4 and IPv6 and >> > should be basically able to support everything FreeBSD does. Beneath >> > that it also brings in USB and SD-Card support and some other subsystems >> > of FreeBSD. >> > >> > 3. I'm quite sure that I have seen some posts about the lwIP >> > (lightweight IP) stack used together with RTEMS. >> > >> > >> > Most network stack related projects on the open projects page refer to >> > the libbsd (second one in my list). So you most likely should >> > concentrate on that one. >> > >> > The big disadvantage of the libbsd is that it heavily lacks >> > documentation. The main documentation is the one big libbsd.txt in the >> > source tree (https://git.rtems.org/rtems-libbsd/tree/libbsd.txt >> > <https://git.rtems.org/rtems-libbsd/tree/libbsd.txt>) and >> > some other files (like CONTRIBUGING.md). >> > >> > If you want to work on the libbsd, I would suggest that you try to build >> > it for the Beagle Bone Black and for example access the SD card content. >> > >> > For that I would suggest to take a look at the libbsd.txt and maybe at >> > the work of last years students (for the libbsd in 2017 that is mainly >> > Sichen Zhao). Please ask any question you have on the mailing list. And >> > please write down everything you learn and add it to the libbsd.txt. It >> > would be a really great start to improve that document. >> > >> > Best regards >> > >> > Christian Mauderer >> > >> > > On Thu, Feb 22, 2018 at 12:28 AM, Christian Mauderer >> > > <[email protected] <mailto:[email protected]> >> > > <mailto:[email protected] <mailto:[email protected]>>> wrote: >> > > >> > > >> > > >> > > Am 21.02.2018 um 00:14 schrieb Joel Sherrill: >> > > > >> > > > >> > > > On Tue, Feb 20, 2018 at 3:23 PM, Gedare Bloom <[email protected] >> > > <mailto:[email protected]> <mailto:[email protected] >> > <mailto:[email protected]>> >> > > > <mailto:[email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>>>> wrote: >> > > > >> > > > Hello and welcome, >> > > > >> > > > For projects that intend to use a specific board, we >> > require that you >> > > > can demonstrate some proficiency with the board itself. >> > In this case, >> > > > you should be able to run RTEMS on the BBB first. Now, >> > there has been >> > > > significant progress made on BBB support, so hopefully >> > someone may >> > > > chime in with what else might remain to be done with it. >> > With a little >> > > > bit of digging, you should be able to find prior >> > students and mentors >> > > > for BBB related projects. >> > > > >> > > > >> > > > My recollection is that the student working on Wifi got it >> > working >> > > with a >> > > > USB dongle on either the BBB or Pi. The Wifi stack still >> > needs work >> > > > independent of any BSP and we have listed that as a project. >> > > > >> > > > But I thought the BBB was in pretty good shape overall. But >> > that's >> > > just >> > > > from memory. >> > > > >> > > > --joel >> > > > >> > > >> > > Hello, >> > > >> > > I have been a mentor for Sichen last year. He has done some driver >> > > support for the core RTEMS BSP of the BBB last year and he >> > ported the >> > > necessary libbsd drivers to use a USB WiFi dongle on that >> > board. He also >> > > put a lot of work into the encrypted WiFi support. >> > > >> > > I think the year before Punit has worked on the BBB BSP. >> > > >> > > Like Joel already said, the core BBB is quite well supported. >> > But there >> > > are still some drivers like CAN, Ethernet or USB OTG (to name >> > a few) >> > > that could be implemented. I've posted an update to the ticket >> > on BBB >> > > (#2891) some weeks back. >> > > >> > > There are also still two projects regarding the WiFi support >> > that could >> > > be done. The BBB is a really good platform for that. That >> > would be the >> > > tickets #3222 and #3223. >> > > >> > > You can find the tickets linked on the open projects page in >> > the wiki. >> > > >> > > Regards >> > > >> > > Christian >> > > >> > > > >> > > > >> > > > Gedare >> > > > >> > > > On Tue, Feb 20, 2018 at 1:56 PM, Udit agarwal >> > <[email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>> >> > > > <mailto:[email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>>>> wrote: >> > > > > Hi, >> > > > > I am Udit Agarwal(irc handle: madaari), pursuing my >> > > undergraduate >> > > > degree in >> > > > > Electronics Engineering from Netaji subash Institute of >> > > > Technology, India. >> > > > > I had some experience of TI-RTOS on MSP432(Cortex M) >> > > > microcontroller, with a >> > > > > pretty good grasp on Beagle Bone Black and other hardware >> > > stuff. >> > > > I'm pretty >> > > > > excited about the project of improving RTEMS support on >> > > Beagle >> > > > Bone Black, >> > > > > and would thus like to compete for it. >> > > > > Being already started with RTEMS documentation and the >> > > Hello World >> > > > project, >> > > > > I would like to know about any other resources i can >> > > consider >> > > > apart from >> > > > > documentation and RSB guide, for this specific BSP(Beagle >> > > Bone Black)? >> > > > > >> > > > > Thanks, >> > > > > Udit Agarwal >> > > > > >> > > > > _______________________________________________ >> > > > > users mailing list >> > > > > [email protected] <mailto:[email protected]> >> > > <mailto:[email protected] >> > <mailto:[email protected]>> >> > > <mailto:[email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>>> >> > > > > http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users> >> > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users>> >> > > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users> >> > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users>>> >> > > > _______________________________________________ >> > > > users mailing list >> > > > [email protected] <mailto:[email protected]> >> > > <mailto:[email protected] >> > <mailto:[email protected]>> >> > > <mailto:[email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>>> >> > > > http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users> >> > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users>> >> > > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users> >> > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users>>> >> > > > >> > > > >> > > > >> > > > >> > > > _______________________________________________ >> > > > users mailing list >> > > > [email protected] <mailto:[email protected]> >> > <mailto:[email protected] <mailto:[email protected]>> >> > > > http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users> >> > > <http://lists.rtems.org/mailman/listinfo/users >> > <http://lists.rtems.org/mailman/listinfo/users>> >> > > > >> > > >> > > >> > >> > >> > >> > >> > _______________________________________________ >> > users mailing list >> > [email protected] >> > http://lists.rtems.org/mailman/listinfo/users >> > >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.rtems.org/mailman/listinfo/users > > > > _______________________________________________ > users mailing list > [email protected] > http://lists.rtems.org/mailman/listinfo/users _______________________________________________ users mailing list [email protected] http://lists.rtems.org/mailman/listinfo/users
