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https://github.com/RobotechLille/cdf2018-principal
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FPGA : Amélioration code 7-segments
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commit
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@ -170,7 +170,7 @@ build/%.o: %.vhd
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ghdl -a --mb-comments --workdir="$(shell dirname "$@")" "$<"
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build/%_tb: build/%_tb.o $(addprefix build/,$(subst .vhd,.o,$(VHDSOURCE)))
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ghdl -e --workdir="$(shell dirname "$@")" -o "$@" "$(basename $(notdir $<))"
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ghdl -e --workdir="$(shell dirname "$@")" -o "$(shell echo "$@" | tr A-Z a-z)" "$(basename $(notdir $<))"
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build/%_tb.vcd: build/%_tb
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(cd "$(shell dirname "$<")"; ghdl -r "$(basename $(notdir $<))" --vcd="../$@" )
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@ -14,8 +14,8 @@ end sevenseg;
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architecture structural of sevenseg is
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signal digit: std_logic_vector(3 downto 0);
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signal selector: integer range 0 to 3 := 0;
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signal counter : integer range 0 to 199999 := 0;
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signal selector: integer := 0;
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signal counter : integer := 0;
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begin
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with selector select
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@ -56,10 +56,14 @@ begin
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alternateur : process(clock)
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begin
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if clock'event and clock = '1' then
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if counter = 0 then
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selector <= selector + 1;
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end if;
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counter <= counter + 1;
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if counter >= 199999 then
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selector <= selector + 1;
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if selector >= 3 then
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selector <= 0;
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end if;
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counter <= 0;
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end if;
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end if;
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end process;
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38
fpga/sevenseg_tb.gtkw
Normal file
38
fpga/sevenseg_tb.gtkw
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@ -0,0 +1,38 @@
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[*]
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[*] GTKWave Analyzer v3.3.86 (w)1999-2017 BSI
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[*] Sun Feb 25 12:47:52 2018
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[*]
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[dumpfile] "/home/geoffrey/Documents/Polytech/Robotech/2017-2018/CdF/cdf2018-principal/fpga/build/sevenseg_tb.vcd"
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[dumpfile_mtime] "Sun Feb 25 12:44:56 2018"
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[dumpfile_size] 111992791
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[savefile] "/home/geoffrey/Documents/Polytech/Robotech/2017-2018/CdF/cdf2018-principal/fpga/sevenseg_tb.gtkw"
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[timestart] 0
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[size] 1680 1012
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[pos] -1 -1
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*-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
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[sst_width] 213
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[signals_width] 126
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[sst_expanded] 1
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[sst_vpaned_height] 296
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@23
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dut.data[15:0]
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@28
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dut.clock
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@8420
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[color] 2
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dut.counter
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@420
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[color] 2
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dut.selector
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@22
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[color] 2
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dut.digit[3:0]
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[color] 1
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dut.anode[3:0]
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@28
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[color] 1
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dut.segment[6:0]
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[color] 1
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dut.dot
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[pattern_trace] 1
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[pattern_trace] 0
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59
fpga/sevenseg_tb.vhd
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59
fpga/sevenseg_tb.vhd
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@ -0,0 +1,59 @@
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-- Testbench automatically generated online
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-- at http://vhdl.lapinoo.net
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-- Generation date : 25.2.2018 12:42:48 GMT
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library ieee;
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use ieee.std_logic_1164.all;
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entity sevenseg_tb is
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end sevenseg_tb;
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architecture tb of sevenseg_tb is
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component sevenseg
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port (data : in std_logic_vector (15 downto 0);
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clock : in std_logic;
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anode : out std_logic_vector (3 downto 0);
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segment : out std_logic_vector (6 downto 0);
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dot : out std_logic);
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end component;
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signal data : std_logic_vector (15 downto 0);
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signal clock : std_logic;
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signal anode : std_logic_vector (3 downto 0);
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signal segment : std_logic_vector (6 downto 0);
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signal dot : std_logic;
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constant TbPeriod : time := 20 ns;
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signal TbClock : std_logic := '0';
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signal TbSimEnded : std_logic := '0';
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constant SegPeriod : time := 4 ms;
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constant FourSegPeriod : time := 4 * SegPeriod;
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begin
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dut : sevenseg
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port map (data => data,
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clock => clock,
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anode => anode,
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segment => segment,
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dot => dot);
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-- Clock generation
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TbClock <= not TbClock after TbPeriod/2 when TbSimEnded /= '1' else '0';
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clock <= TbClock;
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stimuli : process
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begin
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data <= x"0123";
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wait for 2 * FourSegPeriod;
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-- Stop the clock and hence terminate the simulation
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TbSimEnded <= '1';
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wait;
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end process;
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end tb;
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