Dave，thank you.
recently i have checked my readout module, i found some mistakes,and corrected them, i can get some different data now ,it seems like the 202 header and SOC are contained ,but incomplete, i am not sure it is because of my configuration or my readout module. you said the ADV212 either works normal either never output code at all, now i can get some data, does it mean the part is working correctly,and the problem is just the readout module .????
another confusion: the 32bit data is stored in the bram in parallel,when i read out in 8bit, the data will be broke into 4 sections , address0:31--24,address1:23-16,address3 :15-8 ,address 4:7-0. need i consider the big endien or something else.????
the data is attached ,the chosen part is repeat one after another, and before the first repeat part ,there is one more F0, a little like FF FF FF F0,and after a few codes , 4F, FF emerges, like FF 4F(SOC)????.
and i find if i configure the ADV212 's EDMODE2 to 00530000(burst transmission and burst lenth 16),the part never output data at all,but when i change it back to 00020000(DCS) mode ,even the readout timing is Burst transmission ,the part output data,and i can obtain the data as attached. a little weird???