readme file for usbwiz_demo
 
    ' Demonstrates communications between a USBwiz-OEM board and a USB flash drive
    '  attached to the USBwiz-OEM.
    ' The Visual-Basic application functions as host software that sends commands 
    ' to the host controller in the USBwiz.
    ' Why use a PC to control the USB host controller on the USBwiz-OEM?
    ' The PC interface makes it easy to experiment with the code. 
    ' When the code is working, you can port it to any microcontroller with a UART port.

    ' I used a DLP Electronics DLP-USB232M module to interface the USBwiz's asynchronous serial
    ' port to a USB port on a PC. You can instead use a MAX233 or similar chip to connect the 
    ' USBwiz to an RS-232 port or a USB/RS-232 converter on a PC.

    ' Connections:
    ' USBwiz-OEM  DLP-USB232M

    '     1-----------23
    '     2-----------24
    '     6-----------21
    '     7-----------22

    ' USBwiz-OEM
    ' Connect pins 13, 14, 17, 18 to +5V.
    ' Connect pins 15, 16 to GND.

    ' DLP-USB232M
    ' Connect pins 3, 10, 11, 14 to +5V.
    ' Connect pins 2, 5, 7, 19 to GND.

    ' Use a regulated +5V supply.
    ' Attach a flash drive to the bottom USB connector on the USBwix-OEM.

    ' For more about the USBwiz, go to ghielectronics.com.
    ' For more about USB and mass storage, go to Lvr.com.
    ' Send error reports, comments, etc. to jan@Lvr.com

    ' By Jan Axelson
    ' Version 0.9