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Rev 1 Dec.10
Proprietary and Confidential - Specifications subject to change
105
Figure 9-2: Main serial link (UART1) debug access
When it is necessary to download firmware into the AirPrime SL808X Embedded
Module without going through the RS232 interface, access to the embedded
module is forced via the debug connector.
An economical solution consists of making the debug connection using 7 test
points (TP) and placing these points on the edge of the application board.
9.6 RF output accessibility
During the integration phase of the AirPrime SL808X Embedded Module, it can
be helpful to connect the AirPrime SL808X Embedded Module to a GSM/GPRS
simulator in order to check critical RF TX parameters and power behavior.
Although the AirPrime SL808X Embedded Module has been certified, some
parameters may have degraded due to some basic precautions not having been
followed (poor power supply, for example). This will not affect the functionality of
the product, but the product will not comply with GSM specifications.
The following TX parameters can be checked using a GSM/GSM simulator:
•
Phase & Frequency Error
•
Output Power and GSM Burst Time
•
Output Spectrum (Modulation and Switching)
Listed below are available typical GSM/GPRS simulators:
•
CMU200 from Rhode & Schwarz
•
8960 from Agilent
Содержание AirPrime SL808 Series
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