From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 19 Dec 2018 10:33:32 +0000 (+0100)
Subject: platforms/kcu105: change internal vref to 0.84v (recommended value for ddr4)
X-Git-Tag: 24jan2021_ls180~1429
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b6c98cab0d54491f2ddf4660f944351078b174b6;p=litex.git

platforms/kcu105: change internal vref to 0.84v (recommended value for ddr4)
---

diff --git a/litex/boards/platforms/kcu105.py b/litex/boards/platforms/kcu105.py
index 53a6dd6d..5cb7c426 100644
--- a/litex/boards/platforms/kcu105.py
+++ b/litex/boards/platforms/kcu105.py
@@ -486,6 +486,6 @@ class Platform(XilinxPlatform):
 
     def do_finalize(self, fragment):
         XilinxPlatform.do_finalize(self, fragment)
-        self.add_platform_command("set_property INTERNAL_VREF {{0.60}} [get_iobanks 44]")
-        self.add_platform_command("set_property INTERNAL_VREF {{0.60}} [get_iobanks 45]")
-        self.add_platform_command("set_property INTERNAL_VREF {{0.60}} [get_iobanks 46]")
+        self.add_platform_command("set_property INTERNAL_VREF {{0.84}} [get_iobanks 44]")
+        self.add_platform_command("set_property INTERNAL_VREF {{0.84}} [get_iobanks 45]")
+        self.add_platform_command("set_property INTERNAL_VREF {{0.84}} [get_iobanks 46]")