hello,azbida ,thanks for your time , I understand what you said,but now I want to use FX3's GPIF II to transfer my adc data to the pc,and my adc is 10M clock,and 12 bit parallel data, as far as I know ,GPIF can only configure 8/16/24/32
bit, so how to handle my 12 bit data,can you give me any suggestions, thank you very much.
You can use 16-bit GPIF interface. Connect the 12 bit parallel bus from ADC to 12 bits of GPIF interface (DQ[15:4]) and connect the remaining 4 bits (DQ[3:0]) of GPIF data bus to GND. You need to write a Host Application, in which for every 2 bytes, you have to remove the last 4 bits to get the actual data sent by ADC.