From: Sebastien Bourdeauducq <sebastien@milkymist.org>
Date: Sun, 1 Jul 2012 16:14:16 +0000 (+0200)
Subject: Work around imbecilic timing constraints system
X-Git-Tag: 24jan2021_ls180~3120
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6776e2275c645c9376b7883db356f7c67040b628;p=litex.git

Work around imbecilic timing constraints system
---

diff --git a/constraints.py b/constraints.py
index 75fafc14..4e2c4f7c 100644
--- a/constraints.py
+++ b/constraints.py
@@ -100,6 +100,11 @@ TIMESPEC "TSphy_rx_clk" = PERIOD "GRPphy_rx_clk" 40 ns HIGH 50%;
 TIMESPEC "TSphy_tx_clk" = PERIOD "GRPphy_tx_clk" 40 ns HIGH 50%;
 TIMESPEC "TSphy_tx_clk_io" = FROM "GRPphy_tx_clk" TO "PADS" 10 ns;
 TIMESPEC "TSphy_rx_clk_io" = FROM "PADS" TO "GRPphy_rx_clk" 10 ns;
+
+NET "asfifo*/counter_read/gray_count*" TIG;
+NET "asfifo*/counter_write/gray_count*" TIG;
+NET "asfifo*/preset_empty*" TIG;
+
 """.format(phy_rx_clk=ns.get_name(self._phy_rx_clk), phy_tx_clk=ns.get_name(self._phy_tx_clk))
 	
 		return r