FX2LP FPGA interface | Cypress Semiconductor
FX2LP FPGA interface
I am trying to get an FPGA interface working on a FX2LP. I have used the application note AN61345 Spartan 6 design, just changing the FPGA pins to match my own. If I use the USB control centre to send some bytes to the FX2LP it reports that it worked fine. However when I try to read them back it gives the following error.
BULK IN transfer failed with Error Code:997
Can someone tell me what this means? I am a bit surprised that the example design would not just work out of the box.