Hi,
I also tried to modify the source code based on (DE2_115_v.1.0.5_SystemCD) and also, I modified TD_Detect to match PAL input but seem like it did't success. The result is inspiring but problems still occur. The image produced on the VGA monitor is not stable, it's 'jumping'. I attached my modified code here and it is possible for you to share your code too? Other than that, I had some question about how to obtain the value below? Thanks !
.WR1_MAX_ADDR(NTSC ? 640*507 : 640*576), // 525-18
.RD1_ADDR(NTSC ? 640*13 : 640*42), // Read odd field and bypess blanking
.RD1_MAX_ADDR(NTSC ? 640*253 : 640*282),
.RD2_ADDR(NTSC ? 640*267 : 640*330), // Read even field and bypess blanking
.RD2_MAX_ADDR(NTSC ? 640*507 : 640*570),
Best regards,
TWK