Hello! I am too lazy to pay $50 for a Bus Bluster and then wait it from the post service. So I have connected the FTDI chip-based USB board (simple analog can be founded for $10) and successfully use it as a debugger. I have also tuned the open source Visual Studio Code as a GUI for gdb debug session.
This is the example screenshot of the result.
All settings are described in the published on github manual: https://github.com/zhelnio/memos/tree/master/public/00_mips_ftdi_debug