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aba3085a
Correct using g_use_dp_latency_adapter.
· aba3085a
Eric Kooistra
authored
1 year ago
libraries/base/dp/src/vhdl/dp_packet_unmerge.vhd
+
4
−
8
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@@ -58,7 +58,7 @@
-- src_in.ready is used registered.
-- . The p_reg increases the ready latency (RL) by 1, because p_comb does
-- not use src_in.ready, instead p_comb drives d.src_out based on the
-- snk_in.sop, eop, valid. Therefore
c
_use_dp_latency_adapter = true is
-- snk_in.sop, eop, valid. Therefore
g
_use_dp_latency_adapter = true is
-- needed to restore the RL from 2 to 1 for the src_out the output. The
-- alternative is to use a dp_pipeline to register d.src_out in
-- combination with src_in.ready at the input, to keep RL at 1.
@@ -103,14 +103,10 @@ architecture rtl of dp_packet_unmerge is
constant
c_reg_rst
:
t_reg
:
=
(
0
,
0
,
c_dp_sosi_rst
);
constant
c_use_dp_latency_adapter
:
boolean
:
=
false
;
signal
r
:
t_reg
;
signal
d
:
t_reg
;
-- Signals for c_use_dp_latency_adapter = false
-- Signals for c_use_dp_latency_adapter = true
-- Signals for g_use_dp_latency_adapter = true
signal
dp_latency_adapter_snk_out
:
t_dp_siso
;
signal
dp_latency_adapter_snk_in
:
t_dp_sosi
;
signal
dp_latency_adapter_src_in
:
t_dp_siso
;
@@ -123,7 +119,7 @@ begin
end
generate
;
gen_use_src_in_ready
:
if
g_use_src_in_ready
=
true
generate
gen_dp_pipeline
:
if
c
_use_dp_latency_adapter
=
false
generate
gen_dp_pipeline
:
if
g
_use_dp_latency_adapter
=
false
generate
u_dp_pipeline
:
entity
work
.
dp_pipeline
port
map
(
rst
=>
rst
,
@@ -137,7 +133,7 @@ begin
);
end
generate
;
gen_dp_latency_adapter
:
if
c
_use_dp_latency_adapter
=
true
generate
gen_dp_latency_adapter
:
if
g
_use_dp_latency_adapter
=
true
generate
snk_out
<=
dp_latency_adapter_snk_out
;
dp_latency_adapter_snk_in
<=
r
.
src_out
;
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