Re: [lwip-users] Problem running lwip on cortex M7 with D cache enabled

[Jochen Strohbeck]

Jan Menzel:
> On 30.11.2017 23:09, Jochen Strohbeck wrote:
>> As already written in my previous posts I can place the buffer
>> descriptors to non-cache memory. I checked the address in the debugger.
>> But if I try to place 'memp_memory' (which seems to be the data buffer
>> for the lwip pool and is used to hold the RX payload ?) to non-cache
>> memory the address of the gs_gmac_dev struct is to my surprise in
>> internal flash memory....
>>
> Check your driver what buffer/memory is used for RX. Usually the driver
> requests some buffer from LWIP memory to allow forwarding it after RX.

I found an error in the non-cacheable section declaration in the linker
configuration file. Fixed that.