WiFly GSX
WiFlyGSX-um.pdf 11/11/2009
www.rovingnetworks.com
Phone 408-395-6539
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31 -
<2.10>
boot image 11
Set Boot Image 11, =OK
To upload your own firmware or config file to the module, change the stored FTP settings: See
section 5.5 for more details on the FTP commands. To upload your file w following command:
ftp get <string>
Retrieves remote file with name <string>
13
Adhoc Networking Mode
13.1
Infrastructure and adhoc comparison
There are two types of networks. The most common network is infrastructure in which an access
point (AP) is the common point linking all WiFi devices. The access point keeps track of who’s on the
local network and directs IP packets. In many cases the AP is also a router and will forward packets
from the local network to other networks and the internet. It is also very common for the AP to be
running a DHCP server which tracks and assigns IP addresses.
Adhoc is considered a point to point network in that each WiFi device is linked directly to every other
WiFi device on the Adhoc network. There is no access point. All WiFi devices on the adhoc network
participate in keeping the network alive and each keeps track of the other active devices on the
network by sending and receiving beacon and probe packets. In most cases IP addresses are
assigned through Auto IP, although one of the WiFi devices can be configured as a DHCP server.
13.2
Configuring adhoc mode
The WiFly GSX module can be configured to setup an
adhoc network. This mode is useful for point to point
communications. The WiFly device is in Adhoc mode the
device looks like access point for other WiFi devices to
join.
Note: currently the WiFly only supports OPEN mode for
creating adhoc networks.
Adhoc mode can be set via hardware or software
commands.
To enable adhoc mode via hardware:
Set
PIO9
high (3.3V) at power up. On the RN-134 PIO9
is on J1 of the jumper block. When the module powers
up in adhoc mode the WiFly module creates an adhoc
network with the following
SSID:
WiFly-GSX-XX where XX is the final two
bytes of the devices MAC address
Channel:
1
DHCP:
OFF
IP address: 169.254.1.1
Netmask:
255.255.0.0
With the adhoc jumper in place the above settings
override the current saved configuration settings.
