NickYang

> Do you know if the middle LED (LD2) blink at power-on? Yes, it blinks about three times at power-on.

I just re-flashed the most recent v4.8 bitstream by vivado from github.com/ufrisk/pcileech-fpga/tree/master/ScreamerM2_, and restarted the target computer, errors still remained, however.  The device in windows device manager shows up...

I tried to run the program on two different PCs, and different USB port , but the results were the same (19 timeout at _Readpipe_). Since the FTDI driver can...