Advanced Navigation Spatial OEM 매뉴얼 - 페이지 7
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페이지 인쇄4.1
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
Serial UART to USB Converter
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
Dual RS232 Transceiver
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