Hello Juan and Gedare, > On Sat, Feb 13, 2021 at 5:32 AM Juan Solano <j...@jsolano.com> wrote: > > I have seen an old thread of yours where you mention a BSP that works > > with the TMS570LC4357. Is that available somewhere? Are there many > > modifications needed to the standard tms570 bsp? > > > > I am working with a launchpad TI board and I would appreciate any > > existing code to make it easier to use this.
I have invested considerable effort to TMS570 BSP to happen. Unfortunately large amount of TMS570 HW/SW work which I have not rip away and reimplemented again from scratch with my studnets for RTEMS, rottens in the server and udder licenses claimed to be owened by my former head, they probably continue to sell it (in the fact I have found that they do not have right, because no agreement about license transfer has been signed with our faculty). But the work rottents in their new institute. As for the TMS570LC4357, I have generated PINMUX headers and algorithms initially deigned for TMS570LS3137 are extended to support TMS570LC4357 dual pinmux. https://git.rtems.org/rtems/tree/bsps/arm/tms570/include/bsp/tms570lc4357-pins.h The IRI group of Johann Wolfgang Goethe-Universität Frankfurt used RTEMS TMS570 BSP as base for their TMS570LC4357 projects. https://github.com/jalmito/rtems Their local GitLab repo https://gitlab.iri.uni-frankfurt.de/jalm/rtems But I have not registered their interrest to help with mainlining of their work. I have analyzed diffs but only lightly. It would be great if they can describe what works and where are problems. Generally, modifications to get BSP to state which runs on TMS570LC4357 is relatively small. RTEMS mainline is prepared even to use HalCoGen generated files to startup the chip. Problem is that chips differs sometimes even in the corresponding module registers between the chips. And I think that it is unmaintainable (at least for small group as RTEMS developres are) to maintain similar geerated and manually tuned headers mess as HalCoGen provides (sometimes same bits labelled different way between chips etc.). I think that for RTEMS it is necessary to make clear abstractions and headers which would work on whole chips families. As for the actual headers versions and XML register description files, they done big step forward and license is changed and (I believe) compatible with RTEMS. As for HW, I have TMDX570LC43HDK kit at home and lauchpad kits are available at https://www.elektroline.cz/ where I provide consultations. But they are using smaller TMS570 members for now and in SIL3 applications they try to keep whole firmware in the form of single C loop and some DMAs without OS. There is other problem with TMS570 for me. I do not like much CCS and my patches for OpenOCD support are based on old OpenOCD branch and third party base patches which did not found the way into mainline. https://cmp.felk.cvut.cz/~pisa/tms570/openocd-patches/ They support flashing only on TMS570LS3137. Have somebody some experience with open tools for TMS570LC4357 debugging and flashing. By the way I have helped one of my students to prepare nice XCP over Ethernet bootloader for the TMS570 family. But it rottents forbidden to share on the server of my frmer group as well. Generally I have interrest to see RTEMS sunning on TMDX570LC43HDK, it could work well with our port of LwIP as well. But even its integration into RTEMS mainline means considerable work. I am not sure if I find time till summer, we have 300+ studnest in distance teaching class again. I would try to help with consultations as my time allows if there is interrest. If I do not reply in week, please send reminder directly to me... I plan to offer RTEMS GSoC to our students as each year, so may it be somebody will have interrest in some RTEMS porting, LwIP integration, etc... Best wishes, Pavel Pisa phone: +420 603531357 e-mail: p...@cmp.felk.cvut.cz Department of Control Engineering FEE CVUT Karlovo namesti 13, 121 35, Prague 2 university: http://dce.fel.cvut.cz/ personal: http://cmp.felk.cvut.cz/~pisa projects: https://www.openhub.net/accounts/ppisa CAN related:http://canbus.pages.fel.cvut.cz/ On Sunday 21 of February 2021 08:40:01 Gedare Bloom wrote: > Pavel had expressed some interest in this direction before, but I > don't know that anyone has pushed this board far enough to commit a > working BSP. > > I have this hardware available (Hercules Launchpad LAUNCHXL2-570LC43). > But I haven't had any time to try to work with it. Unfortunately, when > I looked at the halcogen stuff it was not license-compatible to RTEMS, > but maybe that has changed. A lot of effort was put in the TMS570 port > before to avoid using halcogen. > > I guess one reason this board may not be that widely used is because > it is a pain to work with. The dual lockstep mode is great for > production safety board, but quite terrible for development and > debugging. > > Gedare > _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
