From b6c98cab0d54491f2ddf4660f944351078b174b6 Mon Sep 17 00:00:00 2001 From: Florent Kermarrec Date: Wed, 19 Dec 2018 11:33:32 +0100 Subject: [PATCH] platforms/kcu105: change internal vref to 0.84v (recommended value for ddr4) --- litex/boards/platforms/kcu105.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/litex/boards/platforms/kcu105.py b/litex/boards/platforms/kcu105.py index 53a6dd6de..5cb7c4269 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]")