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Copyright © 2013 Future Technology Devices International Limited

VDrive3 Datasheet

Version 1.2

Document Reference No.: FT_000699

Clearance No.: FTDI#

335

5

VDrive3 Application Example

5.1

UART Interface to PIC Example

Figure 5.1 – VDrive3 UART example

The VDrive3 provides solutions for quick and easy integration of UART/SPI applications with USB slave

devices. An application is illustrated in Figure 5.1, in this example the VDrive3 is connected to a

microcontroller and peripheral components to form a flash disk based data logger. This application

example also illustrates an analogue signal connected to the 10-bit analogue to digital input of a

PIC18F1320, the analogue signal can be sourced from a wide variety of sensors.

The PIC code takes a pre-defined number of samples and then writes the corresponding ASCII values to a

Comma Separated Value (CSV) file on the USB flash disk attached to the VDrive3 module. Vinculum-II’s

DOS like ASCII commands simplify the task of file handling. An extended ASCII command set is designed

for use with a terminal whilst a shortened hexadecimal version is used with a microcontroller.

For details on this application please see “VNC1L-Data-Logging Example” on the following web page:

http://www.ftdichip.com/Support/SoftwareExamples/VinculumProjects.htm