[PATCH] Basic lwIP for STM32H7 BSP

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Feb 4 13:41:51 UTC 2021


On 04/02/2021 14:39, Joel Sherrill wrote:

> On Thu, Feb 4, 2021, 6:18 AM Robin Müller <robin.mueller.m at gmail.com 
> <mailto:robin.mueller.m at gmail.com>> wrote:
>
>     I think the DMA descriptors need to be 32 byte (0x20) aligned.
>     That's the reason the example application was set up like this.
>
>
> But you can just as easily turn them into pointers which point to 32 
> byte aligned areas in a nocache region.
>
> Just wondering if that's possible with the code because I think it 
> would be easier with the existing linkcmds to assign a nocache area as 
> you need and then split it by hand.
>
> Sebastian... ?
I would prefer to use a generic linker section definition and then 
simply define global data structures in the right section with the right 
alignment (see RTEMS_ALIGN()).

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