Changeset 3348f19 in rtems-docs


Ignore:
Timestamp:
07/19/22 19:41:46 (20 months ago)
Author:
Kinsey Moore <kinsey.moore@…>
Branches:
master
Children:
f1eb94b
Parents:
582141e
git-author:
Kinsey Moore <kinsey.moore@…> (07/19/22 19:41:46)
git-committer:
Joel Sherrill <joel@…> (07/21/22 17:28:23)
Message:

zynqmp: Add commentary about lwIP usage

File:
1 edited

Legend:

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  • user/bsps/aarch64/xilinx-zynqmp.rst

    r582141e r3348f19  
    245245recognized and usable in RTEMS. Most ZynqMP dev boards use CGEM3.
    246246
     247When used with lwIP from the rtems-lwip integration repository, these BSP
     248variants support networking via CGEM0 and one of the other CGEM* instances
     249simultaneously. This is a limitation of the Xilinx driver, specifically
     250in code referring directly to XPAR_XEMACPS_0_BASEADDR. Attempting to use more
     251than two interfaces simultaneously may cause unexpected behavior. Attempting to
     252use a set of two interfaces that does not include CGEM0 may cause unexpected
     253behavior.
     254
     255The interfaces will not come up by default under lwIP and must be configured
     256manually. There are examples of this in the start_networking() implementation
     257in netstart.c as used by the network tests.
     258
    247259Running Executables on QEMU
    248260---------------------------
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