Does the ADV7511 supports Interlaced Video Format?

Hi,

Hi,

Thanks for the information. 

But for Interlaced Video do we have to specifically configure any registers. Currently we are configuring below registers which worked for Progressive video

Register  Value

0x41      0x80
0x98      0x03
0x9A      0x70
0x9C     0x30
0x9D     0x61
0xA2     0xA4
0xA3     0xA4
0xE0     0xD0
0xF9     0x00
0x15     0x01
0x16     0x38
0x17     0x00
0x18     0xC6
0x40     0x80
0x4C    0x04
0x48     0x08
0x55     0x20

And for interlaced there is mainly mention of DE embedded sync generation register.

Thanks.

Hi, 

By using 0x3C[5:0] register, the VIC can be programmed including interlaced format.

For more details, Please refer at Generated by RMapGen (analog.com)

Thanks,

Poornima

Hi,

We tried with configuring the register, but it is not working.

We are trying for STANAG-B format (416 * 575) resolution. We used VTC IP for generating the Active_Video_out, hsync and vsync for HDMI signals.

Field frequency is 50Hz and Frame frequency is 25Hz.

We are providing the clock as 16Mhz to HDMI.

Thanks

Hi,

   Kindly note that, Its not possible to support 'STANAG' over ADV7511 chipset .

  Try to check the same with 'ADV7180' as an A/D and ADV734X or ADV739X as a D/A convertor.

  Also note that, It's not possible to transmit 16Mhz clock in HDMI interface, the Spec says the TMDS clock must be greater than or equal to 20MHz.

In order to support that format, We need to do pixel repetition (PR) to get the TMDS clock rate above the 20MHz limit.

Thanks,

Poornima