• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 270 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TVP7002: HSOUT and VSOUT have only one clock period,Why?

Huizhong Liu
Prodigy 50 points
Part Number: TVP7002

Hi,

    I have a problem when using tvp7002 to decode VGA video. The input VGA video is 1024*768@60Hz, and output data format is RGB 444. The external clock is 27MHz,and the output data clock is 65MHz.

But now I have two questions: one is that the hsout and vsout have only one clock sync period(I have config the HS SYNC period to 136 pixel); another is that the VGA input white color video, and the rgb output data is very small, about 0~15(10bit model). Can anyone help me with the problems?

REGISTERS CONFIG:

0 : LUT_DATA <= 24'hB80400;
1 : LUT_DATA <= 24'hB80506;
2 : LUT_DATA <= 24'hB80610;
3 : LUT_DATA <= 24'hB80F2E;
4 : LUT_DATA <= 24'hB81058;
5 : LUT_DATA <= 24'hB81140;
6 : LUT_DATA <= 24'hB81201;
7 : LUT_DATA <= 24'hB81300;
8 : LUT_DATA <= 24'hB819AA;
9 : LUT_DATA <= 24'hB81ACA;
10 : LUT_DATA <= 24'hB82680;
11 : LUT_DATA <= 24'hB82853;
12 : LUT_DATA <= 24'hB82A87;
13 : LUT_DATA <= 24'hB82B00;
14 : LUT_DATA <= 24'hB83118;
15 : LUT_DATA <= 24'hB83500;
16 : LUT_DATA <= 24'hB83600;
17 : LUT_DATA <= 24'hB83D06;
18 : LUT_DATA <= 24'hB83F00;

19 : LUT_DATA <= 24'hB80830;
20 : LUT_DATA <= 24'hB80930;
21 : LUT_DATA <= 24'hB80A30;
22 : LUT_DATA <= 24'hB80B80;
23 : LUT_DATA <= 24'hB80C80;
24 : LUT_DATA <= 24'hB80D80;
25 : LUT_DATA <= 24'hB81504;
26 : LUT_DATA <= 24'hB81611;
27 : LUT_DATA <= 24'hB81702;
28 : LUT_DATA <= 24'hB81801;
29 : LUT_DATA <= 24'hB8210D;
30 : LUT_DATA <= 24'hB82200;

31 : LUT_DATA <= 24'hB80154;
32 : LUT_DATA <= 24'hB80200;
33 : LUT_DATA <= 24'hB80358;
34 : LUT_DATA <= 24'hB80788;
35 : LUT_DATA <= 24'hB80E00;
36 : LUT_DATA <= 24'hB82C50;
37 : LUT_DATA <= 24'hB84032;
38 : LUT_DATA <= 24'hB84101;
39 : LUT_DATA <= 24'hB84232;
40 : LUT_DATA <= 24'hB84305;
41 : LUT_DATA <= 24'hB84403;
42 : LUT_DATA <= 24'hB84503;
43 : LUT_DATA <= 24'hB84626;
44 : LUT_DATA <= 24'hB84726;