Hi,

Please refer below Interrupt sequence to configure ADV7182/ADV728x,When the ADV7182/ADV728x locked to a video source or looses video lock.
Note :
1) Enter the Interrupt/VDP Map Map by setting register 0x0E bit [6:5] to 01 (binary)
2) Program the interrupt to drive low when active and to stay low until cleared: In register 0x40 write 0xD1
3) Unmask (i.e. activate) the lock interrupt: Set register 0x44 bit[0] to 1.
4) Unmask (i.e. activate) the unlock interrupt: Set register 0x44 bit[1] to 1.
5) Clear the interrupt. set register 0x43 bits [1:0] to 1.
6) Exit the Interrupt/VDP Map: set register 0x0E bit [6:5] to 00 (binary).

Thanks,

Poornima

Hi,

Please refer below Interrupt sequence to configure ADV7182/ADV728x,When the ADV7182/ADV728x locked to a video source or looses video lock.
Note :
1) Enter the Interrupt/VDP Map Map by setting register 0x0E bit [6:5] to 01 (binary)
2) Program the interrupt to drive low when active and to stay low until cleared: In register 0x40 write 0xD1
3) Unmask (i.e. activate) the lock interrupt: Set register 0x44 bit[0] to 1.
4) Unmask (i.e. activate) the unlock interrupt: Set register 0x44 bit[1] to 1.
5) Clear the interrupt. set register 0x43 bits [1:0] to 1.
6) Exit the Interrupt/VDP Map: set register 0x0E bit [6:5] to 00 (binary).

Thanks,

Poornima

Hi Poornima:

It must config clear interruption mode , config the 0x40 write 0x03  ,it also can't  generate interruption when it didnt used the clear  clear interruption mode. thanks .

Hi Poornima:

0x40 0x0E 0x20 

0x40 0x40 0x12//0x14

0x40 0x44 0x03

Hi,

Yes. As you said, It must config clear interruption mode.

Where as if you set 0x40 0x40 0x14, It enables manual mode interrupt and this is used only for testing purpose.The appropriate mask bit must be set to generate an interrupt.

Thanks,

Poornima