Open FPGA Debug

Open FPGA Debug (OFD) is a debug tool, which provides effective method to observe signal conditions inside FPGA. Unlike proprietary analogs (SignalTap/ILA), OFD is a free open-souce IP-core and can be used with FPGA of any vendor.

UPD 2023/08/27

To make OFD more real the initial idea would be shrinked to the capabilities of VIO/ISS&P mode: introducing VBP core!

Directories:

• example - first try of UART OFD (in progress)
• hardware - main code for FPGA part
  • buffer - simple FIFO fo OFD
    • srcs - sources
    • tb - testbench draft
  • core - OFD capture and process state-machine core
  • interfaces - the idea is to have different interfaces support
    • uart - the first and the simplest interface to use
      • srcs - sources
      • tb - testbench draft
    • vbp_core - NEW a virtual bus of pins (VBP) - VIO/ISSP open-source alternative
      • srcs - main handler for VBP inside