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Connecting the usb interface – Echelon FT 5000 EVB User Manual

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FT 5000 EVB Hardware Guide

17

The following table lists the IO pins and IO devices associated with the jumpers on JP32.

Jumper

I/O Pin

IO Device/Functionality on FT 5000 EVB

1-2

IO6

SWSH (Shift register latch strobe for SW2 and Joystick)

3-4

IO7

TEMP (temperature sensor)

5-6

IO8

RXUSB (USB receive)

7-8 IO9 SW1

9-10 IO10 TXUSB

(USB

transmit)

11-12

IO3

PD (connects a 499 Ω pull-down resistor to IO3)

13-14

IO1

PD (connects a 499 Ω pull-down resistor to IO1)

15-16

IO9

PD (connects a 499 Ω pull-down resistor to IO9)

Connecting the USB Interface

You can enable serial communication without handshake lines and then connect your FT 5000 EVB to
your development computer via a USB interface. This lets you perform application-level debugging,
tests, or diagnosis. Once you create this USB connection, you can output debugging and tracing
information from the device application running on your FT 5000 EVB to a terminal emulation
program on your computer such as Windows HyperTerminal.

To create the USB connection for performing application-level debugging, follow these steps:

1. Connect the type A connector on a USB Type A to Type B Cable to an available USB port on

your computer, and then connect the type B connector to the USB interface on the left side of the
FT 5000 EVB.

2. Connect jumpers 5-6 (IO8 RXUSB) and 9-10 (IO10 TXUSB) on JP32. This connects the IO8 and

IO10 pins on the FT 5000 Smart Transceiver to the USB communications interface on the board.
IO10 is connected to pin 5 RXD as a serial data output to the USB interface, and IO8 is connected
to pin 1 TXD as a serial data input from the USB interface.