I'm working on an FPGA controller connected through PCIe. The only way I can debug the hardware is using chipscope. So I execute commands through my driver and check out the signals from the FPGA. The problem is that it takes a lot of time to build the project and load it to the FPGA every time I want to check a signal to debug the project. Is there an easier way to debug an FPGA connected to PCIe? Is there a way I can simulate all the PCIe signals and not have to run the FPGA at all? To be more specific, I would like some kind of infrastructure that I can write a command through the linux driver (writeq) and TLP packets would be sent to my verilog design..