ADV7393 ED TEST BAR

Hi,

I have moved this from the SHARC Processors Community to the Video Community.

Please continue your discussion here.

Thanks,

Colin

Do you have our evaluation board for ADV7393?

-Matt

I havn't ,

I use my own board for ADV7393,

I think there is not issue for the hardware ,becasue the SD video  is sucessful(PAL) ,

when I use the 'ED' pattern ,the test bar is error.

so I can be sure  the ' Rset' pin is  510 ohm ,

and DAC1 pulldown resistor is 75ohm .

thank you

how you solved this??

Hi,

ADV739x are able to internally generate ED/HD color bar, black bar, and hatch test patterns.

For ED test patterns, a 27 MHz clock signal must be applied to the CLKIN pin.

For HD test patterns, a 74.25 MHz clock signal must be applied to the CLKIN pin.
To generate an ED black bar test pattern, the settings shown in Table62 should be used with an additional write of 0x24 to Sub-address 0x02.Please refer Page79 in adv739x datasheet.

Thanks,

Poornima

Hi,

I am using ADV7391.

i am not getting any ntsc test pattern by using this settings. Can you please guide me.

For ED test patterns, a 27 MHz clock signal  applied to the CLKIN pin

0x00     ->     0x1c 

0x01    ->     0x10

0x31    ->     0x05

0x02    ->     0x24

Hi,

To generate an SD NTSC black bar test pattern, the settings shown in Table 60 should be used with an additional write of 0x24 to Sub-address 0x02

For CVBS and S-Video (Y/C) output, 0xCB instead of 0xC9 should be written to Sub-address 0x82.
For component RGB output rather than YPrPb output, 0 should be written to Sub-address 0x02, Bit 5.

Note:For use with ED/HD internal test patterns only (Subaddress 0x31, Bit 2 = 1), May i know your input format ?

Thanks,

Poornima

Hi,

I am using ADV7391.

I am getting SD NTSC black bar test pattern but i am not getting ED black bar test pattern 525P.

I am using these settings to generate ED test pattern

For ED test patterns, a 27 MHz clock signal  applied to the CLKIN pin

0x00     ->     0x1c 

0x01    ->     0x10

0x31    ->     0x05

0x02    ->     0x24

Thanks.