converting RAW to RGB

Without going in to your code in detail I can offer the following advice.

http://www.asic-world.com/verilog/

Contains a lot of info on Verilog coding which may be of interest.

The code fragment you posted is a bit out of context, the code following is important to.

always@(posedge iCLK or negedge iRST_n)

begin

if (!iRST_n)

begin

rRed<=0;

rGreen<=0;

rBlue<=0;

end

else if ({mirror_sw,iY_Cont[0],iX_Cont[0]} == 3'b011)

begin

if (iY_Cont == 12'd1)

begin

rRed<=wData1_d1;

Basically this means that the code following the always is executed on a rising edge of iClk (This is the clock) or a falling edge of iRst_n (This is a reset).

The first if(iRST_n) is executed when when iRST_n = 0;

The else part is executed when iClk is rising. This is the synchronous part of the process and controls the inputs to flip flops.

These are just a few pointers and I really suggest that you read a good tutorial on Verilog programming.

Good luck