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TDC core
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460cec86
Commit
460cec86
authored
Nov 03, 2011
by
Sebastien Bourdeauducq
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rotest: enable terminations, lower frequency
parent
09697e8e
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2 changed files
with
14 additions
and
6 deletions
+14
-6
rotest.ucf
demo/boards/spec/rotest/rotest.ucf
+2
-0
rotest.vhd
demo/boards/spec/rotest/rotest.vhd
+12
-6
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demo/boards/spec/rotest/rotest.ucf
View file @
460cec86
...
...
@@ -4,3 +4,5 @@ NET "led" LOC = G19 | IOSTANDARD = "LVCMOS18";
NET "out_p" LOC = W17 | IOSTANDARD = "LVDS_25";
NET "out_n" LOC = Y18 | IOSTANDARD = "LVDS_25";
NET "oe_n" LOC = V17 | IOSTANDARD = "LVCMOS25";
NET "term_e1" LOC = AB5 | IOSTANDARD = "LVCMOS25";
NET "term_e2" LOC = AB6 | IOSTANDARD = "LVCMOS25";
demo/boards/spec/rotest/rotest.vhd
View file @
460cec86
...
...
@@ -43,12 +43,15 @@ use work.tdc_package.all;
entity
rotest
is
port
(
en
:
in
std_logic
;
led
:
out
std_logic
;
en
:
in
std_logic
;
led
:
out
std_logic
;
out_p
:
out
std_logic
;
out_n
:
out
std_logic
;
oe_n
:
out
std_logic
out_p
:
out
std_logic
;
out_n
:
out
std_logic
;
oe_n
:
out
std_logic
;
term_e1
:
out
std_logic
;
term_e2
:
out
std_logic
);
end
entity
;
...
...
@@ -66,7 +69,7 @@ begin
);
cmp_ringosc
:
tdc_ringosc
generic
map
(
g_LENGTH
=>
31
g_LENGTH
=>
1
31
)
port
map
(
en_i
=>
en
,
...
...
@@ -74,4 +77,7 @@ begin
);
led
<=
not
en
;
oe_n
<=
'0'
;
term_e1
<=
'1'
;
term_e2
<=
'1'
;
end
architecture
;
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