FX3 USB can't be programmed when connected to a FPGA board (KCU-105) | Cypress Semiconductor
FX3 USB can't be programmed when connected to a FPGA board (KCU-105)
I guess this is one easy thing to fix but I didn't get the clue...
My FX3 board works perfect when using stand alone but using it with my evaluation board (Xilinx Kintex Ultrascale, KCU-105) Both "USB Serial" Interfaces are available at the Control Center but not the programmable interface. In Addition the reset Switch (SW1) didn't seem to work anymore.
So I programmed the SRAM example (SRAM FX3.img) into RAM and I2C Eeprom but no changes so I guess it's not a problem with some initialization or wrong code.
Maybe someone know what's wrong with this situation or at least why my FX didn't work? The KCU-105 starts up with the default firmware that makes some LED animations. It looks like the programmable part of the FX3 board is held in reset somehow but I have no idea why.