diff --git a/tb/shinTest/ShinTopSpiTb.v b/tb/shinTest/ShinTopSpiTb.v
index 1e07602..b7ca97d 100644
--- a/tb/shinTest/ShinTopSpiTb.v
+++ b/tb/shinTest/ShinTopSpiTb.v
@@ -752,18 +752,17 @@ task wait_comm_finished();
             //$display("%x %x", rxBuf[3], rxBuf[6]);
             if ((rxBuf[3] & 8'h02) == 8'h02)
             begin
-                $display("1111111111");
                 is_run = 0;
             end
             if ((rxBuf[6] & 8'h60) != 8'h00)
             begin
-                $display("222222222");
+                $display("error occur.");
                 is_run = 0;
             end
             if (($realtime - st) >= 5000000.0)
             begin
-                $display("333333333");
-                //is_run = 0;
+                $display("comm timeout.");
+                is_run = 0;
             end
         end
     end