EVDO PC Embedded Datasheet

Product Datasheet
V001R006
Issue 2 (2009-01-20)
Confidencein Commercial
Page 45 of 60
5.4.2 Engineering Tools
Qualcomm has an extensive debugging and tracing toolset available for their
chipsets. Huawei EM660 is compatible with these tools from Qualcomm, such as
QXDM, QPST, and QCAT.
5.4.3 Debugging Board
I. Functions and Usage of the Debugging board
The debugging board developed by Huawei is an auxiliary board that is used to
debug the EM660.When the debugging board is used, you can connect the module
to a PC through a USB cable. When the module works normally, the debugging
functions can be implemented. The debugging board provides multiple interfaces,
such as the USB port, DC power jack, mini PCI-E connector, BTB connector, UIM
card socket, RF connectors, PCM audio interface, and serial ports (including a 4-pin
serial port and a serial port that all pins are led out). The test points of key signals are
led out on the debugging board. In addition, the debugging board is designed with
switches or pins of commonly used signals such as the reset signal and the enable
signal, for converting the working state of the module.
The debugging board can be used to test the performance of the module. Both the
wired connection test (connect the module to the CMU200) and the wireless
connection test (connect the module to the antennas) can be implemented. The
signal points can also be tested when you maintain and repair the module.
II. Structure of the Debugging board
Figure 5-10 Structure of the debugging board
Notes:
1. RF connector: RF switch, bend, female.
2. RF connector: coaxial connector, straight, male.
3. RF connector: RF switch, straight, female.
4. Connector latch: It works with the mini PCI-E connector and is used for fixing the module.