Roving Networks WIFLY GSX Manual do Utilizador descarregar pdf (Página 46)

www.rovingnetworks.com Version 1.0r 9/21/2012 46

RN-WIFLYCR-UM

Table 16. GPIO Alternative Functions

GPIO

Description

GPIO

Role in alternative function

GPIO4

High when the first client associates, Low when all clients leave the network

GPIO5

WiFly module can drive it high to open a TCP connection to a stored host.

When the module drives GPIO5 low, it closes the TCP connection

GPIO6

WiFly module drives it high when a TCP connection is open, low when TCP

connection is closed

PUTTING THE MODULE TO SLEEP & WAKING IT

Table 17 describes the methods for putting the module to sleep.

Table 17. Methods for Putting the Module to Sleep

Method

Interface

Description

sleep command

UART

Go into command mode using $$$ and issue the sleep command.

Sleep timer

Internal RTC

The module sleeps based on the set sys sleep <value> command setting.

Drive GPIO8 high

GPIO8

The module sleeps as soon as GPIO8 is held high (4 µs latency). To enable this feature,

use the set sys trigger 0x20 command setting.

Table 18 describes the methods for waking the module.

Table 18. Methods for Waking the Module

Method

Interface

Description

Sensor input

(1.2-V DC only)

Sensor pins

You can wake the module using sensor pins 0 - 3 (1.2-V DC ONLY). Use the set sys

trigger <value> command to enable the sensors.

Rx pin

(3.3-V DC only)

RX pin via

sensor 0

The RX pin on the RN-134 and the RN-174 evaluation boards is tied to sensor pin 0 via a

resistor divider network. Use the set sys trigger 1 command to wake the module when it

receives RX data.

NOTE: With this method, the module may drop the first UART data byte. A better method

is to wake the module using the CTS pin.

CTS pin

(3.3-V DC only)

CTS pin via

sensor 1

The CTS pin on the RN-134 and the RN-174 evaluation boards is tied to sensor pin 1 via

a resistor divider network. Use the set sys trigger 2 command to wake the module using

the CTS pin.

Wake timer

Internal RTC

The wake timer wakes the module based on the set sys wake <value> command setting.

FORCE AWAKE

FORCE

AWAKE pin

An input pulse of at least 31 !s (3.3 V) wakes the module.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 95 96

Comentários a estes Manuais

Sem comentários

Roving Networks WIFLY GSX Manual do Utilizador Página 46

Comentários a estes Manuais

Manuais e produtos relacionados com Redes Roving Networks WIFLY GSX