黑白CMOS图像传感器OV9120的原理及应用
s(reset_i,n1,clk)
begin
if reset_i=‘0’then scce_p<=‘1’;
else
if(n1=‘1’ or m1=‘1’)then
scce_p<=‘1’;
else scce p<=‘0’;
end if;
end if;
end process reset2;
clk1: process(n1,clk)
variable a: integer range 254 to 0;
begin
if(sio_c_start=‘0’ OR n1=‘1’) then
q<=‘1’;a:=0;
else
if(clk'event and clk=‘1’) then
if(sio_c start=‘1’ and n1=‘0’) then
if a<254 then; a:=a+1;
else a:=1;
end if;
if a<127 then q<=‘0’;
else q<=‘1’; end if;
end if;
end if;
end if;
end process clk1;
lock:process(sio_c_start,q)
variable n: integer range 8 to 0;
begin
if( sio_c_start=‘0’ then load<=‘1’;n:=0;
else
if (q 'event and q=‘0’) then
if n<8 then n?=n+1;
load<=‘0’;
else n:=0;load<=‘1’;
end if;
end if;
end if;
end process lock;
reg1: process(n1,q,load)
variable pp:std_logic_vector(7 downto 0);?
variable b:integer range 7 to 0;
variable c:integer range 13 to 0;
begin
if(n1=‘1’or reset_i=‘0’) then p<=‘1’;c:=0; b:=0;QB<=‘0’;
else
if(q'event and q=‘0’)then
if load=‘1’ then;
c:=c+1?
if c<13 then
if c=1 then
pp:=″11000010″;
elsif c=2 then
pp:=″00001100″;
elsif c=3 then
pp:=″00101001″;
elsif c=4 then
pp?=″11000010″;
elsif c=5 then
pp:=″00001101″;
elsif c=6 then
pp:=″10000000″;
elsif c=7 then
pp:=″11000010″;
elsif c=8 then
pp:=″00010001″;
elsif c=9 then
pp:=″10000000″;
elsif c=10 then
pp:=″11000010″;
elsif c=11 then
pp:=″00010011″;
elsif c=12 then
pp:=″00010111″?
end if;
b:=0;p<=pp(7);
elsif c=13 then
p<=‘0’; QB<=‘1’;
end if;
else
if b<7 then b:=b+1;
pp(7 downto 1):=pp(6 ownto 0);?
p<=pp(7);?
else p<=‘1’;
end if;
end if;
end if;
end if;
end process reg1;
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