Technical information

Wireless LAN Mode
2-44 AT+i Commands Reference Manual May 31, 2008
+iWRST - Reset WLAN Chipset
+iWLBM - WLAN B Mode
+iWLGM - WLAN G Mode
Roaming Mode
When set to operate in Roaming mode, W24 can roam seamlessly among Access Points (APs)
sharing the same SSID and the same security configuration without interrupting its IP
connectivity. W24 also has a monitoring mechanism that is sensitive to drops in AP signal
strength. When W24 detects such a drop, it automatically starts searching for APs in its vicinity
that have a stronger signal, while remaining connected to the current AP.
The following parameters are required to set W24 to Roaming mode:
Syntax: AT+iWRST
Performs a hardware reset of the Marvell WLAN chipset.
Parameters: None
Result Code:
I/OK If operation succeeded.
I/ERROR (404) Otherwise.
Syntax: AT+iWLBM
Sets the Marvell WLAN chipset to 802.11/b mode. Allowable Tx
transmission rates for this mode are: 1, 2, 5.5 and 11 Mbps.
Parameters: None
Result Code:
I/OK Always.
Syntax: AT+iWLGM
Sets the Marvell WLAN chipset to 802.11/g mode. Allowable Tx
transmission rates for this mode are: 6, 9, 12, 18, 24, 36, 48 and
54 Mbps.
Parameters: None
Result Code:
I/OK Always.