哪位大佬谤满看看哪里有问题
module VGA(CLK,buttom1,buttom2,buttom3,HS,VS,R,G,B);
input CLK;
input buttom1;
input buttom2;
input buttom3;
output reg HS=0;
output reg VS=0;
output[4:0] R; //video red data
output[5:0] G; //video green data
output[4:0] B;
reg[4:0] R=5'b11111; //video red data
reg[5:0] G=6'b111111; //video green data
reg[4:0] B=5'b11111;
integer HSnumber=0;
integer VSnumber=0;
integer state=1;
IPCORE IPCORE(
.areset(),
.inclk0(CLK),
.c0(clk_40m),
.locked()
);
always @(posedge clk_40m)
begin
case(state)
1: begin
if(VSnumber==4*1056-1)
begin
VS<=1;
VSnumber<=0;
state<=2;
end
else
begin
VS<=1;
VSnumber<=VSnumber+1;
end
end
2:begin
if(VSnumber==23*1056-1)
begin
VS<=0;
VSnumber<=0;
state<=3;
end
else
begin
VS<=0;
VSnumber<=VSnumber+1;
end
end
3:begin
if(VSnumber==600*1056-1)
begin
VS<=0;
VSnumber<=0;
state<=4;
end
else
begin
VS<=0;
VSnumber<=VSnumber+1;
end
end
4:begin
if(VSnumber==1*1056-1)
begin
VS<=0;
VSnumber<=0;
state<=1;
end
else
begin
VS<=0;
VSnumber<=VSnumber+1;
end
end
endcase
end
always @(posedge clk_40m)
begin
if(HSnumber<128)
begin
HS<=1;
HSnumber<=HSnumber+1;
end
if(HSnumber>=128&&HSnumber<216)
begin
HS<=0;
HSnumber<=HSnumber+1;
end
if(HSnumber>=216&&HSnumber<1016)
begin
HS<=0;
HSnumber<=HSnumber+1;
end
if(HSnumber>=1016&&HSnumber<1055)
begin
HS<=0;
HSnumber<=HSnumber+1;
end
if(HSnumber==1055)
begin
HS<=0;
HSnumber<=0;
end
end
endmodule