From 574708bd8900eb019782247a5b3dbe1cb6ccd6c4 Mon Sep 17 00:00:00 2001
From: liangkangnan <liangkangnan@163.com>
Date: Wed, 1 Sep 2021 14:12:21 +0800
Subject: [PATCH] rtl:utils:gen_buf: add handle for DP=0

Signed-off-by: liangkangnan <liangkangnan@163.com>
---
 rtl/utils/gen_buf.sv | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/rtl/utils/gen_buf.sv b/rtl/utils/gen_buf.sv
index 67a8a3b..9664a89 100644
--- a/rtl/utils/gen_buf.sv
+++ b/rtl/utils/gen_buf.sv
@@ -41,6 +41,10 @@ module gen_ticks_sync #(
         end
     endgenerate
 
-    assign dout = sync_dat[DP-1];
-  
+    if (DP > 0) begin: dp_gt_0
+        assign dout = sync_dat[DP-1];
+    end else begin: dp_eq_0
+        assign dout = din;
+    end
+
 endmodule