2009-07-09 03:55:46 ADV7393 test pattern

suresh kumar (INDIA)

Message: 76949

We are designed new uclinux based board.

we are using only 8-bit data connection between adv7393 and PPI(Upper 8-bit).we are provideing 27MHz clock input to adv7393 encoder.

So i need to change the driver for 8bit data trasfer.

First i am checking the test pattern.

The code is here:

static const u8 init_NTSC_TESTPATTERN[] = {

0x00, 0x1C, /*Power up all DACs. PLL off */

0x02, 0x20, /*Composite output (CVBS), color bar */

0x82, 0xCB, /*Step control on, pixel data valid, pedestal on, PrPb SSAF on, CVBS/YC output.*/

0x84, 0xC0, /* CBVS Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */

};

static const u8 init_NTSC_TESTPATTERN_BLACK[] = {

0x00, 0x1C, /*Power up all DACs. PLL off */

0x02, 0x24, /*Composite output (CVBS), black bar */

0x82, 0xCB, /*Step control on, pixel data valid, pedestal on, PrPb SSAF on, CVBS/YC output.*/

0x84, 0x40, /*SD Color Bar Test Pattern Enabled, DAC 2 = Luma, DAC 3 = Chroma */

};

What would be the output.

I am connecting DAC1 output into TV.

I am geeting some some DOT color output in TV.

I am not sure is it correct output.

Help me in this issue.

Suresh