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Altera_Forum's avatar
Altera_Forum
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14 years ago

DE2-70 PAL Video input

Hi everyone, the TV Box demo of the DE2-70 board is configured for NTSC video source only. Could you please give me some guideline to modify the source code for PAL video input? I'm very thankful ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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