Advanced Navigation Spatial OEM Manual - Página 8

Procurar online ou descarregar pdf Manual para Microcontroladores Advanced Navigation Spatial OEM. Advanced Navigation Spatial OEM 19 páginas.

4.4

GPIO Header and Status LEDs

Users have access to 6 multi-purpose GPIO pins from Spatial OEM. These are available on the

7x2 2.54mm header, see Illustration 3. Four of these pins (GPIO 1-4) are also connected to LEDs

on the development board. When using a GPIO in certain input functions, the LED can cause

interference with the signal. In this situation, the LED's resistor should be removed. When using

the GPIO lines for off board functions it is important to note that these signals are not protected

against static charges, over-voltage or over-current events. Failure to protect the signals may result

in damage to Spatial OEM. Other pins on the GPIO header include a regulated 3.3V supply from

Spatial that can supply up to 50mA, Spatial's reset line and the external voltage input (VEXT).

Illustration 3: GPIO header with functions labelled

4.5

Spatial OEM connects to a GNSS antenna through a miniature onboard U.FL connector. Due to

the fragile nature of this connector, a U.FL to SMA adapter is supplied on the development board. It

is recommended to use this adapter during development to prevent damage to the Spatial OEM

U.FL connector.

For applications where the development board is placed inside an enclosure it is recommended

Spatial OEM Development Kit Manual

Page 7 of 20

Version 3.0