From: Jan Michel <j.michel@gsi.de>
Date: Fri, 22 Dec 2017 16:11:39 +0000 (+0100)
Subject: Update some constraints
X-Git-Tag: v2.3~25
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=6f58750df5b36b433071757a6c391043a1dafc0d;p=tdc.git

Update some constraints
---

diff --git a/releases/tdc_v2.3/Channel_200.vhd b/releases/tdc_v2.3/Channel_200.vhd
index 98a709a..bff8f06 100644
--- a/releases/tdc_v2.3/Channel_200.vhd
+++ b/releases/tdc_v2.3/Channel_200.vhd
@@ -167,7 +167,11 @@ architecture Channel_200 of Channel_200 is
 
   attribute syn_keep                : boolean;
   attribute syn_keep of ff_array_en : signal is true;
+  attribute syn_keep of FSM_RD_STATE : signal is true;
 
+  attribute syn_hier : string;
+  attribute syn_hier of Channel_200 : architecture is "firm";
+  
 begin  -- Channel_200
 
   GEN_TrgWinEndTdcDist : if SIMULATION = 0 generate
diff --git a/releases/tdc_v2.3/up_counter.vhd b/releases/tdc_v2.3/up_counter.vhd
index 1d8a887..efd03dd 100644
--- a/releases/tdc_v2.3/up_counter.vhd
+++ b/releases/tdc_v2.3/up_counter.vhd
@@ -20,6 +20,9 @@ architecture up_counter of up_counter is
   signal counter                    : std_logic_vector (NUMBER_OF_BITS-1 downto 0);
   attribute syn_preserve            : boolean;
   attribute syn_preserve of counter : signal is true;
+  attribute syn_preserve of up_counter : architecture is true;
+  attribute syn_hier : string;
+  attribute syn_hier of up_counter : architecture is "hard";
 
 begin