From 9820b94f64a0d20ed70d8ce564964351ca6b0f35 Mon Sep 17 00:00:00 2001
From: Eric Kooistra <kooistra@astron.nl>
Date: Wed, 12 Jan 2022 15:21:29 +0100
Subject: [PATCH] Improved p_rd_rx_hdr_words.
---
libraries/base/dp/tb/vhdl/tb_dp_offload_tx_v3.vhd | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/libraries/base/dp/tb/vhdl/tb_dp_offload_tx_v3.vhd b/libraries/base/dp/tb/vhdl/tb_dp_offload_tx_v3.vhd
index 0481f2ff99..7b079c77f9 100644
--- a/libraries/base/dp/tb/vhdl/tb_dp_offload_tx_v3.vhd
+++ b/libraries/base/dp/tb/vhdl/tb_dp_offload_tx_v3.vhd
@@ -56,7 +56,6 @@ ENTITY tb_dp_offload_tx_v3 IS
g_flow_control_verify : t_dp_flow_control_enum := e_active; -- always e_active, e_random or e_pulse flow control
-- specific
g_data_w : NATURAL := 64;
- g_nof_repeat : NATURAL := 100;
g_pkt_len : NATURAL := 240;
g_pkt_gap : NATURAL := 16
);
@@ -87,9 +86,11 @@ ARCHITECTURE tb OF tb_dp_offload_tx_v3 IS
CONSTANT c_sync_period : NATURAL := 5;
CONSTANT c_sync_offset : NATURAL := 2;
CONSTANT c_bsn_init : STD_LOGIC_VECTOR(c_dp_stream_bsn_w-1 DOWNTO 0) := TO_DP_BSN(0);
+ CONSTANT c_nof_sync : NATURAL := 5;
+ CONSTANT c_nof_packets : NATURAL := c_sync_period * c_nof_sync;
CONSTANT c_hdr_len : NATURAL := 7;
- CONSTANT c_wait_last_evt : NATURAL := 100 + g_nof_repeat * c_hdr_len;
+ CONSTANT c_wait_last_evt : NATURAL := 100 + c_nof_packets * c_hdr_len;
-----------------------------------------------------------------------------
-- Tx offload
@@ -279,7 +280,7 @@ BEGIN
g_bsn_init => c_bsn_init,
-- specific
g_in_dat_w => g_data_w,
- g_nof_repeat => g_nof_repeat,
+ g_nof_repeat => c_nof_packets,
g_pkt_len => g_pkt_len,
g_pkt_gap => g_pkt_gap,
g_wait_last_evt => c_wait_last_evt
@@ -437,7 +438,6 @@ BEGIN
p_rd_tx_hdr_words : PROCESS
VARIABLE v_word : STD_LOGIC_VECTOR(c_word_w-1 DOWNTO 0);
BEGIN
- proc_common_wait_until_hi_lo(dp_clk, tx_offload_sosi_arr(0).sync);
proc_common_wait_until_hi_lo(dp_clk, tx_offload_sosi_arr(0).sync);
print_str("");
FOR I IN 0 TO c_udp_offload_nof_hdr_words-1 LOOP
@@ -522,6 +522,8 @@ BEGIN
proc_common_wait_until_hi_lo(dp_clk, verify_snk_in.sync);
proc_common_wait_until_hi_lo(dp_clk, verify_snk_in.sync);
proc_common_wait_until_hi_lo(dp_clk, verify_snk_in.sync);
+ -- wait some latency until header fields of this sync packet are available via MM
+ proc_common_wait_some_cycles(dp_clk, 10);
print_str("");
FOR I IN 0 TO c_udp_offload_nof_hdr_words-1 LOOP
proc_mem_mm_bus_rd(I, mm_clk, reg_dp_offload_rx_hdr_dat_mosi);
--
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