I’m trying to program an XEM3010’s FPGA over USB using FrontPanel, but keep getting a status message saying: “FPGA configuration failed: USB transfer error” immediately after selecting my .bit file.
I’ve tried powering the board off of both a DC adapter and USB with the same results. J1 is in place so it shouldn’t be getting the configuration from PROM. FrontPanel recognizes the board is connected- I can even successfully set the PLL timings and read them back!
The only other odd thing is that the board is not recognized every other time I use FrontPanel’s “scan for USB devices” command (that is, if the board is currently recognized, using that command removes the board form the drop-down menu of available devices and most options become greyed-out), but it recognizes it both upon inital load and immediately when I connect the board after the program is open.
What is going wrong?