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VGA controller - lcd monitor says input signal out of range

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crazy_man1234

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VGA controller

Hi

I wrote some code for vga and i tried to display a rectangular boarder \
"if (Row == 0) || (Row == 439) || (Coloum == 0) || (Coloum == 639)
vga_R = 1;
else gva_R = 0;"

But now it can just display only boarder for column @ 0 and 639 and if tries to display any letter or any other column lcd monitor says input signal out of range.

Could any1 suggest an solution

Thanks in advance
 

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