Advanced Navigation Spatial OEM Handmatig - Pagina 7

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4.1

Spatial OEM Module

The Spatial OEM module connects to the development board through a micro 20 pin board to

board connector. Four M1.6 stainless steel screws bolt into precision stand-offs and ensure rigid

mechanical mounting to the development board. All development boards are shipped with a Spatial

OEM already mounted to allow immediate use out of the box. If you wish to remove the Spatial

OEM from the development board please refer to the Spatial OEM Reference Manual for mounting

and removal instructions. Please note that the board to board connector is fragile and the module

should be removed with care.

4.2

An FTDI FT232R USB to serial UART converter chip is included on board to allow the Spatial OEM

to interface directly to a computer through USB. Two status LEDs indicate the flow of data to and

from the USB port.

USB drivers for all operating systems can be downloaded directly from FTDI's website at

http://www.ftdichip.com/Products/ICs/FT232R.htm.

All development boards are shipped with this interface enabled as standard.

4.3

A Linear Technology LTC2804 dual channel serial UART to RS232 transceiver is included on the

development board to allow developers to communicate with the Spatial OEM module via RS232.

The LTC2804 allows baud rates of up to 1000000 baud.

Channel 1 of the LTC2804 is for use with the primary serial port on the Spatial OEM Module and

Channel 2 of the LTC2804 is for use with GPIO 3 (RS232 TX 2) and GPIO 4 (RS232 RX 2).

Connection to the RS232 level signals is through a 3x2 2.54mm header, see Illustration 2. This

header is on the left of the board and allows developers to attach wires or headers as needed.

Please note that by default the LTC2804 is disabled. Switch 1 turns it on, please see section 5.1.

Illustration 2: RS232 header with functions labelled

Spatial OEM Development Kit Manual

Page 6 of 20

Version 3.0