Advanced Navigation Spatial OEM Руководство - Страница 10

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5 Configuration and Operation

5.1

The OEM development board contains a DIP switch array that allows the user to route signals

between the USB to serial converter, RS232 converter and GPIO header. The configuration switches

are shown below in Illustration 4 in their default positions. The default position routes Spatial's

primary serial port to the USB to serial converter and has GPIO 3 and GPIO 4 connected only to the

GPIO header. Please see Table 1 for the configuration switch functions.

Switch

Default

Off

Table 1: Configuration switch functions

5.1.1

Primary Serial Port to USB

Illustration 4: Configuration

switches in their default position

Power on RS232 transceiver.

When the RS232 transceiver is powered on GPIO 3 and 4 will be connected

to RS232 TX 2 and RS232 RX2 respectively. It will no longer be possible to

use GPIO 4 in a TTL level mode. The primary serial port TX will also be

connected to RS232 TX 1 but the primary serial port RX will only be

connected to RS232 RX 1 if switch 2 is turned on.

Connect primary serial port RX to RS232 transceiver (RS232 RX 1). Please

note that only one of the switches 2,3 or 4 should be turned on at once to

prevent short circuit.

Connect primary serial port RX to USB serial converter. Please note that

only one of the switches 2,3 or 4 should be turned on at once to prevent

short circuit.

Connect primary serial port RX to GPIO header (UART RX). Please note

that only one of the switches 2,3 or 4 should be turned on at once to prevent

short circuit.

Spatial OEM Development Kit Manual

Page 9 of 20

Version 3.0

Function