Datasheet

ZEUS Embedded Linux Development Kit Quickstart AEL Embedded Linux

Wireless modem support and operation

The ZEUS board can support various wireless devices such as a GSM/GPRS wireless

modem, a GPS receiver, and an IEEE802.15.4 / ZigBee radio device via optional add-

on interface modules. The add-on modules denoted as ZEUS MODEM-1 and ZEUS

MODEM-2 support different wireless modem technologies and OEM modules. Refer to

the ZEUS Technical Manual for more detailed information on the individual modems

supported.

The modem interfaces connect to the PXA270 serial ports and can be accessed and

configured in Linux as standard serial ports. In addition to this, there are also a number

of control/status GPIO signals connected to the module interface, J23. These can be

accessed through a GPIO Expander, MAX7313, which is connected to the I²C

interface.

For specific information on how the ZEUS serial ports are mapped in AEL

Embedded Linux. See

Serial Ports on page 28.

Using GSM/GPRS under AEL Embedded Linux

Under Embedded Linux, the GSM/GPRS module is attached to COM5 (/dev/ttyS4).

The following details provide examples on how to set up an IP based GPRS

connection under AEL Embedded Linux. The specific operation varies from one service

provider to another.