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From: | Jan Menzel |
Subject: | Re: [lwip-users] Problem running lwip on cortex M7 with D cache enabled |
Date: | Tue, 5 Dec 2017 00:16:55 +0100 |
User-agent: | Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
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. Jan
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