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Conv TTL Blocking - Gateware
Commits
db20a612
Commit
db20a612
authored
Aug 21, 2014
by
Theodor-Adrian Stana
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Removed general-cores submodule
parent
7b173ccf
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8 changed files
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2 additions
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354 deletions
+2
-354
.gitmodules
.gitmodules
+0
-3
general-cores
ip_cores/general-cores
+0
-1
Manifest.py
modules/bicolor_led_ctrl/Manifest.py
+0
-4
README
modules/bicolor_led_ctrl/README
+0
-5
bicolor_led_ctrl.vhd
modules/bicolor_led_ctrl/bicolor_led_ctrl.vhd
+0
-241
bicolor_led_ctrl_pkg.vhd
modules/bicolor_led_ctrl/bicolor_led_ctrl_pkg.vhd
+0
-98
conv_ttl_blo.ucf
top/Release/conv_ttl_blo.ucf
+1
-1
conv_ttl_blo.vhd
top/Release/conv_ttl_blo.vhd
+1
-1
No files found.
.gitmodules
View file @
db20a612
[submodule "ip_cores/general-cores"]
path = ip_cores/general-cores
url = git://ohwr.org/hdl-core-lib/general-cores.git
general-cores
@
7a8e3f17
Subproject commit 7a8e3f1768e929e05c261082ad1eb52b324f8e07
modules/bicolor_led_ctrl/Manifest.py
deleted
100644 → 0
View file @
7b173ccf
files
=
[
"bicolor_led_ctrl_pkg.vhd"
,
"bicolor_led_ctrl.vhd"
]
modules/bicolor_led_ctrl/README
deleted
100644 → 0
View file @
7b173ccf
Taken from:
http://www.ohwr.org/projects/svec/repository/revisions/master/show/hdl/top/bicolor_led_test
Revision: 220c7837
modules/bicolor_led_ctrl/bicolor_led_ctrl.vhd
deleted
100644 → 0
View file @
7b173ccf
--------------------------------------------------------------------------------
-- CERN (BE-CO-HT)
-- Bi-color LED controller
-- http://www.ohwr.org/projects/svec
--------------------------------------------------------------------------------
--
-- unit name: bicolor_led_ctrl
--
-- author: Matthieu Cattin (matthieu.cattin@cern.ch)
--
-- date: 11-07-2012
--
-- version: 1.0
--
-- description: Bi-color LED controller. It controls a matrix of bi-color LED.
-- The FPGA ouputs for the columns (C) are connected to buffers
-- and serial resistances and then to the LEDs. The FPGA outputs
-- for lines (L) are connected to tri-state buffers and the to
-- the LEDs. The FPGA outputs for lines output enable (L_OEN) are
-- connected to the output enable of the tri-state buffers.
--
-- Example with three lines and two columns:
--
-- |<refresh period>|
--
-- L1/L2/L3 __|--|__|--|__|--|__|--|__|--|__|--|__|--|__|--|__|--|__|--|__|--|__|--|__
--
-- L1_OEN -----|___________|-----|___________|-----|___________|-----|___________|--
--
-- L2_OEN _____|-----|___________|-----|___________|-----|___________|-----|________
--
-- L3_OEN ___________|-----|___________|-----|___________|-----|___________|-----|__
--
-- Cn __|--|__|--|__|--|_________________|-----------------|--|__|--|__|--|__|--
--
-- LED Ln/Cn OFF | color_1 | color_2 | both_colors |
--
--
-- dependencies:
--
--------------------------------------------------------------------------------
-- GNU LESSER GENERAL PUBLIC LICENSE
--------------------------------------------------------------------------------
-- This source file is free software; you can redistribute it and/or modify it
-- under the terms of the GNU Lesser General Public License as published by the
-- Free Software Foundation; either version 2.1 of the License, or (at your
-- option) any later version. This source is distributed in the hope that it
-- will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-- See the GNU Lesser General Public License for more details. You should have
-- received a copy of the GNU Lesser General Public License along with this
-- source; if not, download it from http://www.gnu.org/licenses/lgpl-2.1.html
--------------------------------------------------------------------------------
-- last changes: see log.
--------------------------------------------------------------------------------
-- TODO: -
--------------------------------------------------------------------------------
library
IEEE
;
use
IEEE
.
STD_LOGIC_1164
.
all
;
use
IEEE
.
NUMERIC_STD
.
all
;
library
work
;
use
work
.
bicolor_led_ctrl_pkg
.
all
;
entity
bicolor_led_ctrl
is
generic
(
g_NB_COLUMN
:
natural
:
=
4
;
g_NB_LINE
:
natural
:
=
2
;
g_CLK_FREQ
:
natural
:
=
125000000
;
-- in Hz
g_REFRESH_RATE
:
natural
:
=
250
-- in Hz
);
port
(
rst_n_i
:
in
std_logic
;
clk_i
:
in
std_logic
;
led_intensity_i
:
in
std_logic_vector
(
6
downto
0
);
led_state_i
:
in
std_logic_vector
((
g_NB_LINE
*
g_NB_COLUMN
*
2
)
-
1
downto
0
);
column_o
:
out
std_logic_vector
(
g_NB_COLUMN
-
1
downto
0
);
line_o
:
out
std_logic_vector
(
g_NB_LINE
-
1
downto
0
);
line_oen_o
:
out
std_logic_vector
(
g_NB_LINE
-
1
downto
0
)
);
end
bicolor_led_ctrl
;
architecture
rtl
of
bicolor_led_ctrl
is
------------------------------------------------------------------------------
-- Components declaration
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- Constants declaration
------------------------------------------------------------------------------
constant
c_REFRESH_CNT_INIT
:
natural
:
=
natural
(
g_CLK_FREQ
/
(
2
*
g_NB_LINE
*
g_REFRESH_RATE
))
-
1
;
constant
c_REFRESH_CNT_NB_BITS
:
natural
:
=
log2_ceil
(
c_REFRESH_CNT_INIT
);
constant
c_LINE_OEN_CNT_NB_BITS
:
natural
:
=
log2_ceil
(
g_NB_LINE
);
------------------------------------------------------------------------------
-- Signals declaration
------------------------------------------------------------------------------
signal
refresh_rate_cnt
:
unsigned
(
c_REFRESH_CNT_NB_BITS
-
1
downto
0
);
signal
refresh_rate
:
std_logic
;
signal
line_ctrl
:
std_logic
;
signal
intensity_ctrl_cnt
:
unsigned
(
c_REFRESH_CNT_NB_BITS
-
1
downto
0
);
signal
intensity_ctrl
:
std_logic
;
signal
line_oen_cnt
:
unsigned
(
c_LINE_OEN_CNT_NB_BITS
-
1
downto
0
);
signal
line_oen
:
std_logic_vector
(
2
**
c_LINE_OEN_CNT_NB_BITS
-
1
downto
0
);
signal
led_state
:
std_logic_vector
((
g_NB_LINE
*
g_NB_COLUMN
)
-1
downto
0
);
begin
------------------------------------------------------------------------------
-- Refresh rate counter
------------------------------------------------------------------------------
p_refresh_rate_cnt
:
process
(
clk_i
)
begin
if
rising_edge
(
clk_i
)
then
if
rst_n_i
=
'0'
then
refresh_rate_cnt
<=
(
others
=>
'0'
);
refresh_rate
<=
'0'
;
elsif
refresh_rate_cnt
=
0
then
refresh_rate_cnt
<=
to_unsigned
(
c_REFRESH_CNT_INIT
,
c_REFRESH_CNT_NB_BITS
);
refresh_rate
<=
'1'
;
else
refresh_rate_cnt
<=
refresh_rate_cnt
-
1
;
refresh_rate
<=
'0'
;
end
if
;
end
if
;
end
process
p_refresh_rate_cnt
;
------------------------------------------------------------------------------
-- Intensity control
------------------------------------------------------------------------------
p_intensity_ctrl_cnt
:
process
(
clk_i
)
begin
if
rising_edge
(
clk_i
)
then
if
rst_n_i
=
'0'
then
intensity_ctrl_cnt
<=
(
others
=>
'0'
);
elsif
refresh_rate
=
'1'
then
intensity_ctrl_cnt
<=
to_unsigned
(
natural
(
c_REFRESH_CNT_INIT
/
100
)
*
to_integer
(
unsigned
(
led_intensity_i
)),
c_REFRESH_CNT_NB_BITS
);
else
intensity_ctrl_cnt
<=
intensity_ctrl_cnt
-
1
;
end
if
;
end
if
;
end
process
p_intensity_ctrl_cnt
;
p_intensity_ctrl
:
process
(
clk_i
)
begin
if
rising_edge
(
clk_i
)
then
if
rst_n_i
=
'0'
then
intensity_ctrl
<=
'0'
;
elsif
refresh_rate
=
'1'
then
intensity_ctrl
<=
'1'
;
elsif
intensity_ctrl_cnt
=
0
then
intensity_ctrl
<=
'0'
;
end
if
;
end
if
;
end
process
p_intensity_ctrl
;
------------------------------------------------------------------------------
-- Lines ouput
------------------------------------------------------------------------------
p_line_ctrl
:
process
(
clk_i
)
begin
if
rising_edge
(
clk_i
)
then
if
rst_n_i
=
'0'
then
line_ctrl
<=
'0'
;
elsif
refresh_rate
=
'1'
then
line_ctrl
<=
not
(
line_ctrl
);
end
if
;
end
if
;
end
process
p_line_ctrl
;
f_line_o
:
for
I
in
0
to
g_NB_LINE
-
1
generate
line_o
(
I
)
<=
line_ctrl
and
intensity_ctrl
;
end
generate
f_line_o
;
------------------------------------------------------------------------------
-- Lines output enable
------------------------------------------------------------------------------
p_line_oen_cnt
:
process
(
clk_i
)
begin
if
rising_edge
(
clk_i
)
then
if
rst_n_i
=
'0'
then
line_oen_cnt
<=
(
others
=>
'0'
);
elsif
line_ctrl
=
'1'
and
refresh_rate
=
'1'
then
if
line_oen_cnt
=
0
then
line_oen_cnt
<=
to_unsigned
(
g_NB_LINE
-
1
,
c_LINE_OEN_CNT_NB_BITS
);
else
line_oen_cnt
<=
line_oen_cnt
-
1
;
end
if
;
end
if
;
end
if
;
end
process
p_line_oen_cnt
;
p_line_oen_decode
:
process
(
line_oen_cnt
)
variable
v_onehot
:
std_logic_vector
((
2
**
line_oen_cnt
'length
)
-1
downto
0
);
variable
v_index
:
integer
range
0
to
(
2
**
line_oen_cnt
'length
)
-1
;
begin
v_onehot
:
=
(
others
=>
'0'
);
v_index
:
=
0
;
for
i
in
line_oen_cnt
'range
loop
if
(
line_oen_cnt
(
i
)
=
'1'
)
then
v_index
:
=
2
*
v_index
+
1
;
else
v_index
:
=
2
*
v_index
;
end
if
;
end
loop
;
v_onehot
(
v_index
)
:
=
'1'
;
line_oen
<=
v_onehot
;
end
process
p_line_oen_decode
;
line_oen_o
<=
line_oen
(
line_oen_o
'left
downto
0
);
------------------------------------------------------------------------------
-- Columns output
------------------------------------------------------------------------------
f_led_state
:
for
I
in
0
to
(
g_NB_COLUMN
*
g_NB_LINE
)
-
1
generate
led_state
(
I
)
<=
'0'
when
led_state_i
(
2
*
I
+
1
downto
2
*
I
)
=
c_LED_RED
else
'1'
when
led_state_i
(
2
*
I
+
1
downto
2
*
I
)
=
c_LED_GREEN
else
not
(
line_ctrl
and
intensity_ctrl
)
when
led_state_i
(
2
*
I
+
1
downto
2
*
I
)
=
c_LED_RED_GREEN
else
(
line_ctrl
and
intensity_ctrl
);
-- when led_state_i(2 * I + 1 downto 2 * I) = c_LED_OFF else
end
generate
f_led_state
;
f_column_o
:
for
C
in
0
to
g_NB_COLUMN
-
1
generate
column_o
(
C
)
<=
led_state
(
g_NB_COLUMN
*
to_integer
(
line_oen_cnt
)
+
C
);
end
generate
f_column_o
;
end
rtl
;
modules/bicolor_led_ctrl/bicolor_led_ctrl_pkg.vhd
deleted
100644 → 0
View file @
7b173ccf
--------------------------------------------------------------------------------
-- CERN (BE-CO-HT)
-- Bi-color LED controller package
-- http://www.ohwr.org/projects/svec
--------------------------------------------------------------------------------
--
-- unit name: bicolor_led_ctrl_pkg
--
-- author: Matthieu Cattin (matthieu.cattin@cern.ch)
--
-- date: 11-07-2012
--
-- version: 1.0
--
-- description: Package for Bi-color LED controller.
--
-- dependencies:
--
--------------------------------------------------------------------------------
-- GNU LESSER GENERAL PUBLIC LICENSE
--------------------------------------------------------------------------------
-- This source file is free software; you can redistribute it and/or modify it
-- under the terms of the GNU Lesser General Public License as published by the
-- Free Software Foundation; either version 2.1 of the License, or (at your
-- option) any later version. This source is distributed in the hope that it
-- will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-- See the GNU Lesser General Public License for more details. You should have
-- received a copy of the GNU Lesser General Public License along with this
-- source; if not, download it from http://www.gnu.org/licenses/lgpl-2.1.html
--------------------------------------------------------------------------------
-- last changes: see log.
--------------------------------------------------------------------------------
-- TODO: -
--------------------------------------------------------------------------------
library
IEEE
;
use
IEEE
.
STD_LOGIC_1164
.
all
;
use
IEEE
.
NUMERIC_STD
.
all
;
package
bicolor_led_ctrl_pkg
is
------------------------------------------------------------------------------
-- Constants declaration
------------------------------------------------------------------------------
constant
c_LED_RED
:
std_logic_vector
(
1
downto
0
)
:
=
"10"
;
constant
c_LED_GREEN
:
std_logic_vector
(
1
downto
0
)
:
=
"01"
;
constant
c_LED_RED_GREEN
:
std_logic_vector
(
1
downto
0
)
:
=
"11"
;
constant
c_LED_OFF
:
std_logic_vector
(
1
downto
0
)
:
=
"00"
;
------------------------------------------------------------------------------
-- Functions declaration
------------------------------------------------------------------------------
function
log2_ceil
(
N
:
natural
)
return
positive
;
------------------------------------------------------------------------------
-- Components declaration
------------------------------------------------------------------------------
component
bicolor_led_ctrl
generic
(
g_NB_COLUMN
:
natural
:
=
4
;
g_NB_LINE
:
natural
:
=
2
;
g_CLK_FREQ
:
natural
:
=
125000000
;
-- in Hz
g_REFRESH_RATE
:
natural
:
=
250
-- in Hz
);
port
(
rst_n_i
:
in
std_logic
;
clk_i
:
in
std_logic
;
led_intensity_i
:
in
std_logic_vector
(
6
downto
0
);
led_state_i
:
in
std_logic_vector
((
g_NB_LINE
*
g_NB_COLUMN
*
2
)
-
1
downto
0
);
column_o
:
out
std_logic_vector
(
g_NB_COLUMN
-
1
downto
0
);
line_o
:
out
std_logic_vector
(
g_NB_LINE
-
1
downto
0
);
line_oen_o
:
out
std_logic_vector
(
g_NB_LINE
-
1
downto
0
)
);
end
component
;
end
bicolor_led_ctrl_pkg
;
package
body
bicolor_led_ctrl_pkg
is
------------------------------------------------------------------------------
-- Function : Returns log of 2 of a natural number
------------------------------------------------------------------------------
function
log2_ceil
(
N
:
natural
)
return
positive
is
begin
if
N
<=
2
then
return
1
;
elsif
N
mod
2
=
0
then
return
1
+
log2_ceil
(
N
/
2
);
else
return
1
+
log2_ceil
((
N
+
1
)
/
2
);
end
if
;
end
;
end
bicolor_led_ctrl_pkg
;
top/Release/conv_ttl_blo.ucf
View file @
db20a612
##--==============================================================================
##-- CERN (BE-CO-HT)
##--
Glitch filter with selectable length
##--
UCF defintions file for CONV-TTL-BLO gateware
##--==============================================================================
##--
##-- author: Theodor Stana (t.stana@cern.ch)
...
...
top/Release/conv_ttl_blo.vhd
View file @
db20a612
...
...
@@ -739,7 +739,7 @@ begin
--============================================================================
-- I2C bridge logic
--============================================================================
-- Set the I2C address signal according to ELMA protocol [
1
]
-- Set the I2C address signal according to ELMA protocol [
2
]
i2c_addr
<=
"10"
&
fpga_ga_i
;
-- Instantiate I2C bridge component
...
...
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