RTEMS | Provide SPARC greth Network Drivers for lwip (#28)

Wed Jul 9 17:06:14 UTC 2025

Prithvi Tambewagh commented: https://gitlab.rtems.org/groups/rtems/-/work_items/28#note_126233

Today another milestone was achieved. 

I was able to run an UDP client, which transmits a message every second to unicast address (GRETH IP Address statically assigned). This transmission works from host linux to GRETH emulated in SIS. I am running `telnetd02.exe` from rtems-net-legacy and the great part about it is that it has networking related commands, so I used `netstats -A` to show the stats after the communication, which reflected with the number of packets sent from host linux to GRETH! Additionally I was also able to run `netcat` to send custom UDP commands which were transmitted properly to GRETH and also reflected in the stats!

I referred this : https://github.com/joelsherrill/rtems-networking-tests/blob/main/mcast_client/mcast_client.c and tweaked it to create a Unicast UDP client, as told by @opticron 

This demonstrates successful communication using GRETH Legacy Driver

-- 
View it on GitLab: https://gitlab.rtems.org/groups/rtems/-/work_items/28#note_126233
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