> On 21 Dec 2017, at 04:54, Nathan Hartman <hartman.nat...@gmail.com> wrote: > > On Dec 20, 2017, at 7:23 PM, Ben Stuyts <b...@altus-escon.com > <mailto:b...@altus-escon.com>> wrote: > >> Hi Nathan, >> >>> On 20 Dec 2017, at 16:31, Nathan Hartman <hartman.nat...@gmail.com >>> <mailto:hartman.nat...@gmail.com>> wrote: >>> >>> On Dec 20, 2017, at 10:17 AM, Ben Stuyts <b...@altus-escon.com >>> <mailto:b...@altus-escon.com>> wrote: >>>> >>>> TI’s Stellarisware library for the LM3S series chips uses lwIP v1.3.1. By >>>> any chance, has anybody ported lwIP v2.0.3 to Stellarisware? >>>> >>>> They basically #include all the lwIP *.c files into a single lwiplib.c >>>> file and compile that. Also not sure if their own interface/porting layer >>>> code is compatible with v2.0.3. >>> >>> Not sure if LM3S is the same family or related to TI's Tiva-C a.k.a. TM4C >>> family (TI bought Stellaris and renamed it to Tiva) but what Ben describes >>> is exactly how TivaWare implements lwIP. >> >> Yes, same thing. Cortex M3 vs M4 core is the main difference. TI ran into >> manufacturing problems with the LM3S series and developed the TM4C as a >> successor. TI stopped support for Stellarisware for the LM3S series and then >> renamed/forked it to TivaWare (or some such) for the TM4C chips. In the >> beginning it was more or less compatible, but I believe (!) it has diverged >> quite a bit now. >> >>> TivaWare is TI's driver library / bare bones framework for the TM4C family. >>> It's stuck on lwIP version 1.4.1. As far as I know TI did not express any >>> interest in updating TivaWare to use newer lwIP. >> >> LM3S series is NRND, and I wouldn’t touch the TM4C series with a ten feet >> pole because of that. But we have a couple of designs with an LM3S8938 that >> I’d like to update to get access to the latest lwIP features. >> >>> We want to upgrade our code to 2.0.3 as well. If anyone knows of a working >>> port for this platform or what adaptations must be made then please point >>> us to it. Ben, if none exists then perhaps we can combine our efforts. >> >> Definitely interested. But if anybody has already done some work on it, >> please let us know. > > Are you familiar with e2e? Some searching has revealed this post: > > I haven't studied in depth yet (will hopefully tomorrow morning) but > supposedly someone named John Piliounis has gotten 2.0.2 to work. > > I'll see what else I can dig up. Perhaps the thing to do is to go naively and > replace the 1.4.1 files with 2.0.3 and see what happens. > > The link: > > https://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/587288/2157245 > <https://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/587288/2157245> No, I had not seen that. Thanks!
Ben
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