I use VISA READ read data from USB RAW. And the data of one frame are 1024x1024. As our PCB board does not have DDR to cache data, and the speed totally depends the speed of VISA READ. We found that when labview get 512x512 data, it wil pause for a moment. But the FPGA does not stop and sends data to usb all the time. So there will be lost some data.
There are two questions: what happened when labview got 512x512 data? Is there any settings in labview or usb raw and how to sovle this problem?
Thanks very much!!!
