PSPLINK allows you to start and debug homebrew for the Playstation Portable through USB. This can speed up development and make finding out what is causing a crash or bug easier. This page explains how to set it up and use it.
The usage of psplinkusb was migrated, check it out here.
If you need any additional information, check out the complete online manual.
Requirement: PSPSDK
Get it using git:
git clone https://github.com/pspdev/psplinkusb.git && cd psplinkusb
Build it:
make all
PSPLINK is licensed under the BSD license, see LICENSE file for details.