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AR# 36574: 12.1 EDK - How do I add additional parameter definitions for lwIP?
12.1 EDK - How do I add additional parameter definitions for lwIP?
There are many options in the lwIP source code that are not supported in the default BSP and library generation through LibGen and MSS. I would like to use those lwIP features at my own risk. How do I turn them on in the EDK tool flow?
In order to support additional parameter definitions, both the MLD and Tcl files in the data folder under the lwIP source directory need to be modified.
Copy the lwIP library from the installation area: C:\Xilinx\12.1\ISE_DS\EDK\sw\ThirdParty\sw_services\lwip130_v2_00_a
to a sw_services directory in your project directory: < project >\sw_services
or to a sw_services directory in your global repository: < Global_Repository >\< library >\sw_services
If you copy the lwIP library into a global repository, be sure to set the global repository in XPS by selecting Edit > Preferences > Application and filling in the data entry field with the location of your global repository.
Make modifications to the newly copied lwIP library files.
Edit the lwip130_v2_1_0.mld file
BEGIN CATEGORY igmp_options PARAM name = lwip_igmp, desc = "Turn on lwIP IGMP?", type = bool, default = false, permit = none; END CATEGORY
The above code adds a new parameter name called lwip_igmp of type Boolean.