Advanced JTAG Bridge

This is a port of the advanced JTAG bridge from the MinSoC project to RISC-V. The port has been done as part of the PULP project.

The bridge connects to a JTAG target and opens a local port for a remote gdb connection. Supported targets include RTL simulations via JTAG DPI, FPGA emulation and FTDI cables.

Build

Run the following commands to the build the JTAG server:

./autogen.sh
./configure
make

Usage Example

The following command connects to JTAG tap 0 of a running RTL simulation and listens for connections from GDB on port 1234. The VPI/DPI driver has been started with port 4567.

./adv_jtag_bridge -x 0 -c 8 -l 0:4 -l 1:4 -g 1234 vpi -p 4567

This version modified by [email protected] for compatibility with digilent libraries. These

need to be installed in the usual waY:

sudo dpkg -i /home/jrrk2/Downloads/digilent.adept.runtime_2.16.5-amd64.deb sudo dpkg -i /home/jrrk2/Downloads/digilent.adept.utilities_2.2.1-amd64.deb tar xzf /home/jrrk2/Downloads/digilent.adept.sdk_2.4.2.tar.gz cd digilent.adept.sdk_2.4.2 sudo install.sh

These libraries, though slower than direct connection to the USB, provide interoperability with the way Vivado expects to work.