EVK-W262U - User Guide
UBX-15020900 - R04
Introduction
Page 5 of 16
1.1.3
Specifications
Parameter
Specification
Serial Interfaces
1 USB 2.0
Dimensions
55.5 x 17.0 mm
Power Supply
5 V through USB
Normal Operating Conditions
-40 °C to +65 °C
Table 1: EVK-W262U specifications
1.2
Block diagram
Figure 2: Block diagram of main components of EVK-W262U
The EVK-W262U evaluation kit uses only one USB interface to communicate with the evaluation software and for
power supply. A DC/DC step down voltage converter (U1) supplies the ODIN module with a 3.3 V system voltage.
To transform the USB data signals to a common UART interface used by the module, a UART converter chip (U2)
is used. To help in the evaluation process, a reset and system restore button is featured as well as five LEDs to
indicate system status.
1.3
Connectors
A USB 2.0 compatible serial port is featured for data communication and power supply.
Function
Description
Name
UART over USB
USB Type A connector, power source and interface for sending AT commands
J2
Table 2: Available connectors in EVK-W262U
1.4
LEDs
The evaluation board has five LEDs to indicate status of system and communication link. The LEDs LD1 to LD4 are
located on the side of the PCB and indicate when the UART signals TXD, RXD, RTS and CTS are active as shown
in Table 3. The LD5 is an RGB LED located in the middle of the board that changes color according to the current
system mode.
