Digi Connect ME board

HelloI’m installing a digiconnect ME development board. I have no hardware debugger. Can I use the GDB software debugger? I believe no because there is no option to enable gdb software debugger server in my platform repertory, or maybe I can’t find it. And another question, how do I do to upload my own application if I don’t use a hardware debugger? Thank you for your answer, adrien.bureau@gmail.com