Silicon Labs Si-DBG1015A Simplicity Link Debugger debugs and programs 32-bit and 8-bit devices on custom boards. The J-Link debugger allows programming and debugging on the target device via USB through a Mini Simplicity interface. The virtual COM port interface (VCOM) offers an easy-to-use serial port connection over USB. The Packet Trace Interface (PTI) produces invaluable debug information about transmitted and received packets in wireless links and an optional 3.3V power supply to power the external target board. The Silicon Labs Si-DBG1015A simplicity link debugger board also has twelve break-out pads, which can be used for probing signals to and from the custom hardware.