From bf1aaacb35d12447c4622ed1a3abe65994bdcb08 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Mon, 29 Sep 2014 13:37:51 +0000
Subject: [PATCH] DS explanation for modified ip_stratixiv_phy_xaui_soft.qip.

---
 libraries/technology/ip_stratixiv/phy_xaui/readme.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libraries/technology/ip_stratixiv/phy_xaui/readme.txt

diff --git a/libraries/technology/ip_stratixiv/phy_xaui/readme.txt b/libraries/technology/ip_stratixiv/phy_xaui/readme.txt
new file mode 100644
index 0000000000..c8d75cfe00
--- /dev/null
+++ b/libraries/technology/ip_stratixiv/phy_xaui/readme.txt
@@ -0,0 +1,11 @@
+
+
+1) ip_stratixiv_phy_xaui_soft.qip
+
+The soft XAUI qip that is generated by the MegaWizard includes the following assignment:
+
+set_global_assignment -library "lib_phy_xaui" -name SYSTEMVERILOG_FILE [file join $::quartus(qip_path) phy_xaui/altera_xcvr_xaui.sv]
+
+...which assigns a file that is exactly the same as a file in the HARD xaui QIP, which causes ambiguity in Quartus. Therefore the assignment
+has been stripped from the soft XAUI qip. The resulting QIP has been put in this dir and is read by Quartus instead of the generated QIP.
+
-- 
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