Rainbow Electronics GM862-GPS - Manual (Page 74)

Easy Script in Python
80000ST10020a Rev.8 - 01/10/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 74 of 100
3.3.2 Debug Python script on GPS modules using CMUX
CMUX (Converter-Multiplexer) is a multiplexing protocol implemented in the Telit module that can be
used to send data, SMS, fax, TCP data. The Multiplexer mode enables one serial interface to transmit
data to four different customer applications form which one is dedicated to Python debug. This is
achieved by providing four virtual channels using a Multiplexer (Mux).
With activating of the CMUX feature debugging data can be received on the serial ASC0 port mounted
on EVK2.
NOTE: for the direct debug of GPS modules a software version starting from 7.02.X01 is needed.
3.3.2.1 Installation
• Install the Telit Serial Port Mux ver 1.08-B001 24 application on your PC. A box similar to this
will appear at the end of installation:
• Select the baud rate and then click on the Apply button
3.3.2.2 Debugging process
NOTE: If the PC uses the EVK2 RS232 upper port (ASC0) to send AT commands, remember
to put all jumpers to set RS232 mode.
24 please contact our technical assistance to get the latest application version