From 1ad6f09df9a4a5296b25f352aa52dec495153a1b Mon Sep 17 00:00:00 2001
From: Eric Kooistra <kooistra@astron.nl>
Date: Fri, 21 Jan 2022 14:17:32 +0100
Subject: [PATCH] Clarified head and tail index.
---
libraries/base/dp/src/vhdl/dp_offload_rx.vhd | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libraries/base/dp/src/vhdl/dp_offload_rx.vhd b/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
index d2eef67a13..ff1a52c715 100644
--- a/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
+++ b/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
@@ -130,8 +130,11 @@ BEGIN
src_out_arr => dp_split_src_out_2arr(i)
);
- dp_split_src_in_2arr(i)(1) <= c_dp_siso_rdy;
-
+ -- In dp_split index 0 is head and index 1 is tail, but dp_split uses 0 TO
+ -- 1 range and dp_split_src_in_2arr()() uses 1 DOWNTO 0 range, so:
+ -- . dp_split_src_in_2arr()(1) is the header part, and
+ -- . dp_split_src_in_2arr()(0) is the tail part.
+ dp_split_src_in_2arr(i)(1) <= c_dp_siso_rdy; -- flow control for rx header to MM is always ready
END GENERATE;
---------------------------------------------------------------------------------------
@@ -186,7 +189,7 @@ BEGIN
st_clk => dp_clk,
snk_out => dp_split_src_in_2arr(i)(0),
- snk_in => dp_split_src_out_2arr(i)(0),
+ snk_in => dp_split_src_out_2arr(i)(0), -- tail part
src_in => dp_tail_remove_src_in_arr(i),
src_out => dp_tail_remove_src_out_arr(i)
--
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