hi, kzw 謝謝.... 但是我查了一些資料關於ITU 656 NTSC vertical timing的資料，都跟目前DE2 demo程式裡的 不太一樣，像是DE2_TV裡SDRAM填入的有效掃瞄線 total line --> 0 ~ 507 odd field --> 13..253 even field --> 267..507 我查標準的格式對不上...看了AD7181 656timing 的資料也是對不上... 有人可以幫忙解答PAL total,odd,even掃瞄線是什麼嗎... 有誰可以幫我解答謝謝....>_< .WR1_DATA(YCbCr),
.WR1(Data_Valid),
.WR1_FULL(WR1_FULL),
.WR1_ADDR(0),
.WR1_MAX_ADDR(640*507),
.WR1_LENGTH(9'h80),
.WR1_LOAD(!DRAM_RST),
.WR1_CLK(CLOCK_27),
// FIFO Read Side 1 // Read odd field and bypess blanking
.RD1_DATA(m1YCbCr),
.RD1(m1VGA_Read),
.RD1_ADDR(640*13),
.RD1_MAX_ADDR(640*253),
.RD1_LENGTH(9'h80),
.RD1_LOAD(!DRAM_RST),
.RD1_CLK(CLOCK_27),
// FIFO Read Side 2 // Read even field and bypess blanking
.RD2_DATA(m2YCbCr),
.RD2(m2VGA_Read),
.RD2_ADDR(640*267),
.RD2_MAX_ADDR(640*507),
.RD2_LENGTH(9'h80),
.RD2_LOAD(!DRAM_RST),
.RD2_CLK(CLOCK_27), [em14][em14][em14] | 
