now i have connected the adv7180 to muc A33, but i don‘t know when the muc reads data from the adv7180? And what's the use of the pins of hs and vs ? Do the pins of vs and hs play a role when the mcu reads the data ?
Hs and Vs are timing signals for the video. Normally the processor has a video input port where they can be tied to.
Does this processor have a video port?
What data are you trying to read from the ADV7180?
Thank you for your reply. The processor has a vedio port . I want to konw the process of the datas from adv7180 to processor. And when the processor reads the datas of pixel, whta's the use of the timing signals of Hs and Vs. I have read the datasheet, but I can't understand competely.
Please check the book Video Demystified. It describes all the timing formats. Else search the web for NTSC timing. There are lots of articles which describe the various timing formats and relationships of HS and VS to video data.
Retrieving data ...