From cb55bd7111cadc9952c0b5a5127d8e63d9f82327 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Thu, 8 Jan 2015 06:40:59 +0000
Subject: [PATCH] Check UNSIGNED(wr_fifo_usedw) < c_dp_factor, because a mixed
width FIFO cannot always be flushed completely empty, which is ok.diff
---
libraries/io/ddr/tb/vhdl/tb_io_ddr.vhd | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/libraries/io/ddr/tb/vhdl/tb_io_ddr.vhd b/libraries/io/ddr/tb/vhdl/tb_io_ddr.vhd
index e42f972dfc..e5b70fc7b8 100644
--- a/libraries/io/ddr/tb/vhdl/tb_io_ddr.vhd
+++ b/libraries/io/ddr/tb/vhdl/tb_io_ddr.vhd
@@ -178,6 +178,7 @@ BEGIN
END LOOP;
-- Stop diagnostics source and sink
+ proc_common_wait_some_cycles(dp_clk, 1);
src_diag_en <= '0';
snk_diag_en <= '0';
@@ -188,9 +189,9 @@ BEGIN
-- Wait until the wr fifo has been flushed and the rd fifo has been read empty
proc_common_wait_some_cycles(ctlr_clk, 500*c_dp_factor);
- ASSERT UNSIGNED(wr_fifo_usedw) = 0 REPORT "[ERROR] Write FIFO is flushed but not empty!" SEVERITY FAILURE;
- ASSERT UNSIGNED(rd_fifo_usedw) = 0 REPORT "[ERROR] Read FIFO is not empty!" SEVERITY FAILURE;
- ASSERT UNSIGNED(snk_val_cnt) = expected_cnt REPORT "[ERROR] Unexpected number of read data!" SEVERITY FAILURE;
+ ASSERT UNSIGNED(wr_fifo_usedw) < c_dp_factor REPORT "[ERROR] Write FIFO is flushed but not empty!" SEVERITY FAILURE;
+ ASSERT UNSIGNED(rd_fifo_usedw) = 0 REPORT "[ERROR] Read FIFO is not empty!" SEVERITY FAILURE;
+ ASSERT UNSIGNED(snk_val_cnt) = expected_cnt REPORT "[ERROR] Unexpected number of read data!" SEVERITY FAILURE;
-- Restart diagnostics source and sink
src_diag_en <= '1';
--
GitLab