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Atom CPLD: Discriminate normal and bright orange 

Change-Id: Id9e1d6b2872f5a3bc863ad891c3418ba8b6228ca
pull/12/head
David Banks 2018-11-28 12:51:24 +00:00
rodzic 0af1234a65
commit d9fbb6a033
2 zmienionych plików z 84 dodań i 65 usunięć
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138
vhdl_atom/RGBtoHDMI.vhdl
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@ -63,10 +63,10 @@ architecture Behavorial of RGBtoHDMI is
-- Sampling points
constant INIT_SAMPLING_POINTS : std_logic_vector(3 downto 0) := "0000";
signal shift_R : std_logic_vector(1 downto 0);
signal shift_G1 : std_logic_vector(1 downto 0);
signal shift_G2 : std_logic_vector(1 downto 0);
signal shift_B : std_logic_vector(1 downto 0);
signal shift_R : std_logic_vector(1 downto 0);
signal shift_G : std_logic_vector(1 downto 0);
signal shift_B : std_logic_vector(1 downto 0);
signal shift_X : std_logic_vector(1 downto 0);
-- The sampling counter runs at 8x pixel clock of 7.15909MHz = 56.272720MHz
--
@ -92,38 +92,42 @@ architecture Behavorial of RGBtoHDMI is
-- Decoded RGB signals
signal R : std_logic;
signal G1 : std_logic;
signal G2 : std_logic;
signal G : std_logic;
signal B : std_logic;
signal X : std_logic; -- indicates either dark orange or bright orange
-- R/PA/PB processing pipeline
signal AL1: std_logic;
signal AH1: std_logic;
signal BL1: std_logic;
signal BH1: std_logic;
signal L1: std_logic;
signal AL1 : std_logic;
signal AH1 : std_logic;
signal BL1 : std_logic;
signal BH1 : std_logic;
signal LL1 : std_logic;
signal LH1 : std_logic;
signal AL2: std_logic;
signal AH2: std_logic;
signal BL2: std_logic;
signal BH2: std_logic;
signal L2: std_logic;
signal AL2 : std_logic;
signal AH2 : std_logic;
signal BL2 : std_logic;
signal BH2 : std_logic;
signal LL2 : std_logic;
signal LH2 : std_logic;
signal AL3: std_logic;
signal AH3: std_logic;
signal BL3: std_logic;
signal BH3: std_logic;
signal L3: std_logic;
signal AL3 : std_logic;
signal AH3 : std_logic;
signal BL3 : std_logic;
signal BH3 : std_logic;
signal LL3 : std_logic;
signal LH3 : std_logic;
signal AL: std_logic;
signal AH: std_logic;
signal BL: std_logic;
signal BH: std_logic;
signal L: std_logic;
signal AL : std_logic;
signal AH : std_logic;
signal BL : std_logic;
signal BH : std_logic;
signal LL : std_logic;
signal LH : std_logic;
signal HS1: std_logic;
signal HS2: std_logic;
signal FS1: std_logic;
signal HS1 : std_logic;
signal HS2 : std_logic;
signal FS1 : std_logic;
begin
@ -186,9 +190,13 @@ begin
BL3 <= BL2;
BH3 <= BH2;
L1 <= L_I;
L2 <= L1;
L3 <= L2;
LL1 <= L_I;
LL2 <= LL1;
LL3 <= LL2;
LH1 <= SYNC_I;
LH2 <= LH1;
LH3 <= LH2;
if sample_C = '1' then
AL <= (AL1 AND AL2) OR (AL1 AND AL3) OR (AL2 AND AL3);
@ -198,54 +206,54 @@ begin
end if;
if sample_L = '1' then
L <= (L1 AND L2) OR (L1 AND L3) OR (L2 AND L3);
LL <= (LL1 AND LL2) OR (LL1 AND LL3) OR (LL2 AND LL3);
LH <= (LH1 AND LH2) OR (LH1 AND LH3) OR (LH2 AND LH3);
end if;
-- YUV to RGB
if sample_L = '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
--MAGENTA 2.0 2.0 0 1 0 1 X 1 0 1 1
--BUFF 1.5 1.5 0 0 0 0 1 1 1 1 1
--ORANGE 2.0 1.0 0 1 1 0 1 1 1 0 0
-- AL AH BL BH LL LH X B G R
--YELLOW WH 1.5 1.0 0 0 1 0 X X 0 0 1 1
--RED WL 2.0 1.5 0 1 0 0 X X 0 0 0 1
--MAGENTA WM 2.0 2.0 0 1 0 1 X X 0 1 0 1
--BUFF WH 1.5 1.5 0 0 0 0 1 X 0 1 1 1
--BRIGHT ORANGE WL 2.0 1.0 0 1 1 0 X 1 1 0 0 1
R <= (NOT AL AND NOT AH AND BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND BH) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND L) OR (NOT AL AND AH AND BL AND NOT BH AND L);
R <= (NOT AL AND NOT AH AND BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND BH) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND LL) OR (NOT AL AND AH AND BL AND NOT BH AND LH);
-- AL AH BL BH L R G1 G2 B
--YELLOW 1.5 1.0 0 0 1 0 X 1 1 1 0
--CYAN 1.0 1.5 1 0 0 0 X 0 1 1 1
--GREEN 1.0 1.0 1 0 1 0 1 0 1 1 0
--BUFF 1.5 1.5 0 0 0 0 1 1 1 1 1
--ORANGE 2.0 1.0 0 1 1 0 1 1 1 0 0
-- AL AH BL BH LL LH X B G R
--YELLOW WM 1.5 1.0 0 0 1 0 X X 0 0 1 1
--CYAN WM 1.0 1.5 1 0 0 0 X X 0 1 1 0
--GREEN WM 1.0 1.0 1 0 1 0 1 X 0 0 1 0
--BUFF WM 1.5 1.5 0 0 0 0 1 X 0 1 1 1
G1 <= (NOT AL AND NOT AH AND BL AND NOT BH) OR (AL AND NOT AH AND NOT BL AND NOT BH) OR (AL AND NOT AH AND BL AND NOT BH AND L) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND L) OR (NOT AL AND AH AND BL AND NOT BH AND L);
G <= (NOT AL AND NOT AH AND BL AND NOT BH) OR (AL AND NOT AH AND NOT BL AND NOT BH) OR (AL AND NOT AH AND BL AND NOT BH AND LL) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND LL);
-- AL AH BL BH L R G1 G2 B
--ORANGE 2.0 1.0 0 1 1 0 1 1 1 0 0
-- AL AH BL BH LL LH X B G R
--BLUE WL 1.5 2.0 0 0 0 1 X X 0 1 0 0
--CYAN WM 1.0 1.5 1 0 0 0 X X 0 1 1 0
--MAGENTA WM 2.0 2.0 0 1 0 1 X X 0 1 0 1
--BUFF WM 1.5 1.5 0 0 0 0 1 X 0 1 1 1
-- Note: invert this, so orange appears in colours 8..15
G2 <= (NOT AL AND AH AND BL AND NOT BH AND L);
B <= (NOT AL AND NOT AH AND NOT BL AND BH) OR (AL AND NOT AH AND NOT BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND BH) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND LL);
-- AL AH BL BH L R G1 G2 B
--BLUE 1.5 2.0 0 0 0 1 X 0 0 1 1
--CYAN 1.0 1.5 1 0 0 0 X 0 1 1 1
--MAGENTA 2.0 2.0 0 1 0 1 X 1 0 1 1
--BUFF 1.5 1.5 0 0 0 0 1 1 1 1 1
-- AL AH BL BH LL LH X B G R
--DARK ORANGE WM 2.0 1.0 0 1 1 0 1 0 1 0 0 0
--BRIGHT ORANGE WM 2.0 1.0 0 1 1 0 1 1 1 0 0 1
B <= (NOT AL AND NOT AH AND NOT BL AND BH) OR (AL AND NOT AH AND NOT BL AND NOT BH) OR (NOT AL AND AH AND NOT BL AND BH) OR (NOT AL AND NOT AH AND NOT BL AND NOT BH AND L);
X <= (NOT AL AND AH AND BL AND NOT BH AND LL);
end if;
if sample_L = '1' and counter(counter'left) = '0' then
-- R Sample/shift register
shift_R <= R & shift_R(1);
-- G1 Sample/shift register
shift_G1 <= G1 & shift_G1(1);
-- G2 Sample/shift register
shift_G2 <= G2 & shift_G2(1);
-- G Sample/shift register
shift_G <= G & shift_G(1);
-- B Sample/shift register
shift_B <= B & shift_B(1);
-- X Sample/shift register
shift_X <= X & shift_X(1);
end if;
-- Output quad register
@ -258,13 +266,13 @@ begin
quad(10) <= '0';
quad(9) <= '0';
quad(8) <= '0';
quad(7) <= shift_G2(1);
quad(7) <= shift_X(1);
quad(6) <= shift_B(1);
quad(5) <= shift_G1(1);
quad(5) <= shift_G(1);
quad(4) <= shift_R(1);
quad(3) <= shift_G2(0);
quad(3) <= shift_X(0);
quad(2) <= shift_B(0);
quad(1) <= shift_G1(0);
quad(1) <= shift_G(0);
quad(0) <= shift_R(0);
psync <= counter(4);
end if;

11
vhdl_atom/fitting.notes
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@ -85,3 +85,14 @@ FB3 18/18* 28/54 63/90 8/ 9
FB4 18/18* 27/54 36/90 7/ 7*
----- ----- ----- -----
65/72 102/216 166/360 27/34
9. Atom CPLD: Discriminate dark and bright orange
Function Mcells FB Inps Pterms IO
Block Used/Tot Used/Tot Used/Tot Used/Tot
FB1 18/18* 28/54 46/90 8/ 9
FB2 15/18 24/54 25/90 5/ 9
FB3 18/18* 28/54 63/90 8/ 9
FB4 18/18* 29/54 39/90 7/ 7*
----- ----- ----- -----
69/72 109/216 173/360 28/34