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RTSD
HDL
Commits
fa87694d
Commit
fa87694d
authored
4 years ago
by
Reinier van der Walle
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Added the check if g_check_input_sync = True for using the input sync to
reset the counter.
parent
9ea81327
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1 merge request
!37
Resolve L2SDP-136
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libraries/base/dp/src/vhdl/dp_block_gen_valid_arr.vhd
+4
-5
4 additions, 5 deletions
libraries/base/dp/src/vhdl/dp_block_gen_valid_arr.vhd
with
4 additions
and
5 deletions
libraries/base/dp/src/vhdl/dp_block_gen_valid_arr.vhd
+
4
−
5
View file @
fa87694d
...
@@ -136,9 +136,8 @@
...
@@ -136,9 +136,8 @@
-- . Using g_check_input_sync=True is similar to using a dp_sync_checker in
-- . Using g_check_input_sync=True is similar to using a dp_sync_checker in
-- front of this dp_block_gen_valid_arr. However the advantage of
-- front of this dp_block_gen_valid_arr. However the advantage of
-- dp_sync_checker is that it provides monitoring and control via MM.
-- dp_sync_checker is that it provides monitoring and control via MM.
-- . If snk_in.sync is always '0', sync out is generated at g_nof_blk_per_sync.
-- . If g_check_input_sync = True, te output sync is derived from snk_in.sync to
-- Otherwise, the output sync is also derived from snk_in.sync to allow for
-- allow for a fractional amount of blocks per sync period.
-- a fractional amount of blocks per sync period.
LIBRARY
IEEE
,
common_lib
;
LIBRARY
IEEE
,
common_lib
;
USE
IEEE
.
STD_LOGIC_1164
.
ALL
;
USE
IEEE
.
STD_LOGIC_1164
.
ALL
;
...
@@ -274,14 +273,14 @@ BEGIN
...
@@ -274,14 +273,14 @@ BEGIN
-- maintain blk_cnt for output sync interval, the blk_cnt is the local bsn that wraps at every sync
-- maintain blk_cnt for output sync interval, the blk_cnt is the local bsn that wraps at every sync
IF
r
.
blk_cnt
>=
g_nof_blk_per_sync
-1
THEN
IF
r
.
blk_cnt
>=
g_nof_blk_per_sync
-1
THEN
nxt_r
.
blk_cnt
<=
0
;
nxt_r
.
blk_cnt
<=
0
;
ELSIF
snk_in
.
sync
=
'1'
THEN
ELSIF
g_check_input_sync
AND
snk_in
.
sync
=
'1'
THEN
nxt_r
.
blk_cnt
<=
1
;
nxt_r
.
blk_cnt
<=
1
;
ELSE
ELSE
nxt_r
.
blk_cnt
<=
r
.
blk_cnt
+
1
;
nxt_r
.
blk_cnt
<=
r
.
blk_cnt
+
1
;
END
IF
;
END
IF
;
-- create local sync and pass on input bsn at local sync
-- create local sync and pass on input bsn at local sync
IF
r
.
blk_cnt
=
0
OR
snk_in
.
sync
=
'1'
THEN
-- output sync starts at first input valid
IF
r
.
blk_cnt
=
0
OR
(
g_check_input_sync
AND
snk_in
.
sync
=
'1'
)
THEN
-- output sync starts at first input valid
nxt_r
.
reg_sosi
.
sync
<=
'1'
;
-- output sync for this block
nxt_r
.
reg_sosi
.
sync
<=
'1'
;
-- output sync for this block
nxt_r
.
reg_sosi
.
bsn
<=
in_sosi
.
bsn
;
-- output input bsn at sync
nxt_r
.
reg_sosi
.
bsn
<=
in_sosi
.
bsn
;
-- output input bsn at sync
ELSE
ELSE
...
...
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