Building a USB-to-JTAG Interface Using SKiDL

This post describes using SKiDL for a USB-to-JTAG interface that was taken all the way from concept to physically building a device.

Assembled USB-to-JTAG board.

The interface is pretty simple. It's built from the following stuff:

  • A PIC32MX220 microcontroller.
  • A 12 MHz crystal.
  • Some reset circuitry.
  • A six-pin Microchip programming header (for the …