leo/linreceiver-vhdl
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sync field start

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This commit is contained in:
leo 2023-09-26 10:21:18 +02:00
parent 9383e1c441
commit 9b37bc7894
Signed by: leo
GPG Key ID: 0DD993BFB2B307DB
2 changed files with 32 additions and 4 deletions
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34
ReceptionTrame_lib/receptionTrame_com.vhd
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@ -60,8 +60,8 @@ CASE cState IS
END IF; END IF;
WHEN syncBreak1 => WHEN syncBreak1 =>
if(LinSynchro = '0') THEN if(n_0 = '1') THEN
if(n_0 = '1') THEN if(LinSynchro = '1') THEN
nState <= syncFieldWait; nState <= syncFieldWait;
else else
nState <= waiting; nState <= waiting;
@ -116,7 +116,7 @@ BEGIN
n_LOAD <= '1'; n_LOAD <= '1';
n_SELECT <= '0'; n_SELECT <= '0';
else else
-- ERROR sync -- ERROR sync break
end if; end if;
else else
if(n_0 = '1') then if(n_0 = '1') then
@ -130,6 +130,34 @@ BEGIN
n_EN <= '1'; n_EN <= '1';
nbBit_LOAD <= '0'; nbBit_LOAD <= '0';
end if; end if;
WHEN syncBreak1 =>
if(n_0 = '1') then
if(LinSynchro = '0') then
-- ERROR sync stop
end if;
else
n_LOAD <= '0';
n_EN <= '1';
end if;
WHEN syncFieldWait =>
if(LinSynchro = '0') then
n_LOAD <= '1';
n_SELECT <= '1';
end if;
WHEN syncFieldStart =>
if(n_0 = '1') then
if(LinSynchro = '0') then
n_SELECT <= '0';
n_LOAD <= '1';
nbBit_SELECT <= '1';
nbBit_LOAD <= '1';
else
-- ERROR start bit
end if;
else
n_LOAD <= '0';
n_EN <= '1';
end if;
WHEN others => WHEN others =>
end CASE; end CASE;

2
ReceptionTrame_lib/receptionTrame_tb.vhd
View File

@ -5,7 +5,7 @@ USE ieee.std_logic_arith.all;
ENTITY receptionTrame_tb IS ENTITY receptionTrame_tb IS
GENERIC( GENERIC(
CLOCK_PERIOD: time := 52 us; CLOCK_PERIOD: time := 52 us;
UC_CLK_PERIOD: time := 10 ns UC_CLK_PERIOD: time := 40 ns
); );
END receptionTrame_tb; END receptionTrame_tb;