FTDI’s VNC1L (“Vinculum”) USB chip for embedded host designs now has a comprehensive evaluation environment in the shape of the V-Eval board. It comes with a USB A/B cable and a USB gender changer for use with USB slave applications. The board provides two USB host/slave ports, multiple I/O port connections and a Vinculum USB device programmer, terminal emulator and command monitor. Alternative interfaces include UART, SPI and FIFO; there is an 800-point uncommitted prototyping area on the board. As well as the VNC1L embedded host controller, the board has an FT2232 dual USB-UART to provide programming and debug. As well as programming the host, it sends commands to it and checks the responses and, for external functions in a specific application, you can use it to compare actual against expected commands. The board has its own power supply, ir it will run from the USB connection. Documentation/software is here.