From b7ac6cdf4020a155ac67d03fc91fe2c68ba62e9f Mon Sep 17 00:00:00 2001
From: Luca <Luca@hackerspace-bamberg.de>
Date: Mon, 30 Dec 2024 02:11:47 +0100
Subject: [PATCH] docs: add some documentation

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index 3aa801c..58cb836 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,20 @@
 # pixel~~flut~~rinnsal
+
+Pixelflut on an FPGA with an active area of 346 by 196 pixels (video format 640x480 at ~60Hz)
+
+The Ethernet PHY on the Arty A7 is limited to 100Mbit/s, so *use less bandwidth*!
+
+## "Protocol"
+
+see [GPN17:Pingxelflut](https://entropia.de/GPN17:Pingxelflut#Format)
+
+Do not expect to get an ICMPv6 Echo Reply, as only the receiver is implemented :D
+
+## Routing
+
+```
+ip a add 2001:db8::ffff:ffff:0:2/64 dev eth0
+ip neigh add 2001:db8::ffff:ffff:0:1 lladdr 02:00:00:00:00:00 dev eth0
+ip r del 2001:db8::/64 dev eth0
+ip r add 2001:db8::/64 via 2001:db8::ffff:ffff:0:1 dev eth0
+```