User's Manual

WM_PRJ_Q2400_PTS_002 - 004
March 5, 2004
2.15.2.2 Power OFF
To properly power OFF the module, the application must set the ON/~OFF signal to low and then
send the AT+CPOF command to de-register from the network and switch off the module. Once the
« OK » response is issued by the module, the power supply can be switched off.
POW ER SUPPLY
ON/
~
OFF
AT COM M AND
ST A T E OF T H E M OD U LE
A
T+CPOF
Module
REA DY
Module OFF
I
BB+ RF
<100 µA
Netw ork dependent
OK res
p
onse
I
BB+RF
= overall current consum ption (Base Band + RF part)
Figure 4: Power-OFF sequence diagram
2.16 BOOT (optional)
This input can be used to download a software in the Flash memory of the WISMO module.
For the applications based on AT commands, this is a backup download procedure only (refer to
document [1] Customer Design Guidelines).
The internal boot procedure is started when this pin is low during the reset of the module.
In normal mode this pin has to be left open. In Internal boot mode, low level has to be set through a
1KΩ resistor. If used, this input has to be driven by an open collector or an open drain output:
• BOOT pin 12 = 0, for download mode,
• BOOT pin 12 = 1, for normal mode.
Pin description
Signal Pin number I/O I/O type Description
BOOT 12 I CMOS Flash Downloading
Note : The nominal firmware download procedure is using the X-modem
confidential ©
Page : 34 / 63
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.