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FPGA : Amélioration code 7-segments

This commit is contained in:
Geoffrey Frogeye 2018-02-25 13:49:53 +01:00
parent 39154e4f5e
commit 9a2bf3d9cd
4 changed files with 107 additions and 6 deletions

View file

@ -170,7 +170,7 @@ build/%.o: %.vhd
ghdl -a --mb-comments --workdir="$(shell dirname "$@")" "$<"
build/%_tb: build/%_tb.o $(addprefix build/,$(subst .vhd,.o,$(VHDSOURCE)))
ghdl -e --workdir="$(shell dirname "$@")" -o "$@" "$(basename $(notdir $<))"
ghdl -e --workdir="$(shell dirname "$@")" -o "$(shell echo "$@" | tr A-Z a-z)" "$(basename $(notdir $<))"
build/%_tb.vcd: build/%_tb
(cd "$(shell dirname "$<")"; ghdl -r "$(basename $(notdir $<))" --vcd="../$@" )

View file

@ -14,8 +14,8 @@ end sevenseg;
architecture structural of sevenseg is
signal digit: std_logic_vector(3 downto 0);
signal selector: integer range 0 to 3 := 0;
signal counter : integer range 0 to 199999 := 0;
signal selector: integer := 0;
signal counter : integer := 0;
begin
with selector select
@ -56,10 +56,14 @@ begin
alternateur : process(clock)
begin
if clock'event and clock = '1' then
if counter = 0 then
selector <= selector + 1;
end if;
counter <= counter + 1;
if counter >= 199999 then
selector <= selector + 1;
if selector >= 3 then
selector <= 0;
end if;
counter <= 0;
end if;
end if;
end process;

38
fpga/sevenseg_tb.gtkw Normal file
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@ -0,0 +1,38 @@
[*]
[*] GTKWave Analyzer v3.3.86 (w)1999-2017 BSI
[*] Sun Feb 25 12:47:52 2018
[*]
[dumpfile] "/home/geoffrey/Documents/Polytech/Robotech/2017-2018/CdF/cdf2018-principal/fpga/build/sevenseg_tb.vcd"
[dumpfile_mtime] "Sun Feb 25 12:44:56 2018"
[dumpfile_size] 111992791
[savefile] "/home/geoffrey/Documents/Polytech/Robotech/2017-2018/CdF/cdf2018-principal/fpga/sevenseg_tb.gtkw"
[timestart] 0
[size] 1680 1012
[pos] -1 -1
*-42.000000 2550000000000 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[sst_width] 213
[signals_width] 126
[sst_expanded] 1
[sst_vpaned_height] 296
@23
dut.data[15:0]
@28
dut.clock
@8420
[color] 2
dut.counter
@420
[color] 2
dut.selector
@22
[color] 2
dut.digit[3:0]
[color] 1
dut.anode[3:0]
@28
[color] 1
dut.segment[6:0]
[color] 1
dut.dot
[pattern_trace] 1
[pattern_trace] 0

59
fpga/sevenseg_tb.vhd Normal file
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@ -0,0 +1,59 @@
-- Testbench automatically generated online
-- at http://vhdl.lapinoo.net
-- Generation date : 25.2.2018 12:42:48 GMT
library ieee;
use ieee.std_logic_1164.all;
entity sevenseg_tb is
end sevenseg_tb;
architecture tb of sevenseg_tb is
component sevenseg
port (data : in std_logic_vector (15 downto 0);
clock : in std_logic;
anode : out std_logic_vector (3 downto 0);
segment : out std_logic_vector (6 downto 0);
dot : out std_logic);
end component;
signal data : std_logic_vector (15 downto 0);
signal clock : std_logic;
signal anode : std_logic_vector (3 downto 0);
signal segment : std_logic_vector (6 downto 0);
signal dot : std_logic;
constant TbPeriod : time := 20 ns;
signal TbClock : std_logic := '0';
signal TbSimEnded : std_logic := '0';
constant SegPeriod : time := 4 ms;
constant FourSegPeriod : time := 4 * SegPeriod;
begin
dut : sevenseg
port map (data => data,
clock => clock,
anode => anode,
segment => segment,
dot => dot);
-- Clock generation
TbClock <= not TbClock after TbPeriod/2 when TbSimEnded /= '1' else '0';
clock <= TbClock;
stimuli : process
begin
data <= x"0123";
wait for 2 * FourSegPeriod;
-- Stop the clock and hence terminate the simulation
TbSimEnded <= '1';
wait;
end process;
end tb;