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RGBtoHDMI
kopia lustrzana https://github.com/hoglet67/RGBtoHDMI
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Atom CPLD: Added back in glitch filtering 

Change-Id: I1c9077a956577d7aa5353a7ecfb83c805fcade15
pull/11/head
David Banks 2018-11-23 22:43:46 +00:00
rodzic eab13bc481
commit 49d0873393
1 zmienionych plików z 23 dodań i 22 usunięć
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vhdl_atom/RGBtoHDMI.vhdl
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@ -96,24 +96,22 @@ architecture Behavorial of RGBtoHDMI is
-- R/PA/PB processing pipeline
signal AL1: std_logic;
signal AL2: std_logic;
signal AL3: std_logic;
signal AH1: std_logic;
signal AH2: std_logic;
signal AH3: std_logic;
signal BL1: std_logic;
signal BL2: std_logic;
signal BL3: std_logic;
signal BH1: std_logic;
signal BH2: std_logic;
signal BH3: std_logic;
signal L1: std_logic;
signal L1: std_logic;
signal L2: std_logic;
signal L3: std_logic;
signal AL2: std_logic;
signal AH2: std_logic;
signal BL2: std_logic;
signal BH2: std_logic;
signal L2: std_logic;
signal AL3: std_logic;
signal AH3: std_logic;
signal BL3: std_logic;
signal BH3: std_logic;
signal L3: std_logic;
signal AL: std_logic;
signal AH: std_logic;
@ -169,8 +167,8 @@ begin
shift <= '0';
end if;
if sample = '1' then
-- Atom pixel processing
-- Atom pixel processing
if counter(0) = offset(0) then
AL1 <= AL_I;
AH1 <= AH_I;
BL1 <= BL_I;
@ -189,12 +187,15 @@ begin
BH3 <= BH2;
L3 <= L2;
AL <= AL3; -- (AL1 AND AL2) OR (AL1 AND AL3) OR (AL2 AND AL3);
AH <= AH3; -- (AH1 AND AH2) OR (AH1 AND AH3) OR (AH2 AND AH3);
BL <= BL3; -- (BL1 AND BL2) OR (BL1 AND BL3) OR (BL2 AND BL3);
BH <= BH3; -- (BH1 AND BH2) OR (BH1 AND BH3) OR (BH2 AND BH3);
L <= l3; -- ( L1 AND L2) OR ( L1 AND L3) OR ( L2 AND L3);
L <= ( L1 AND L2) OR ( L1 AND L3) OR ( L2 AND L3);
AL <= (AL1 AND AL2) OR (AL1 AND AL3) OR (AL2 AND AL3);
AH <= (AH1 AND AH2) OR (AH1 AND AH3) OR (AH2 AND AH3);
BL <= (BL1 AND BL2) OR (BL1 AND BL3) OR (BL2 AND BL3);
BH <= (BH1 AND BH2) OR (BH1 AND BH3) OR (BH2 AND BH3);
end if;
-- YUV to RGB
if sample = '1' then
-- AL AH BL BH L R G1 G2 B
--YELLOW 1.5 1.0 0 0 1 0 X 1 1 1 0
--RED 2.0 1.5 0 1 0 0 X 1 0 1 0
@ -265,7 +266,7 @@ begin
end if;
-- generate the csync output
csync <= HS_I and FS_I;
csync <= SYNC_I;
end if;
end process;