Siemens TC65 Dokumentacja Pobierz pdf (Strona 47)

TC65 Hardware Interface Description

Confidential / Released

TC65_HD_V02.000 Page 47 of 120 08.06.2006

• To switch from Charge-only mode to Airplane mode set the command

AT^SCFG=MEopMode/Airplane,on. The mode is indicated by the URC “^SYSSTART

AIRPLANE MODE”.

• If AT^SCFG=MEopMode/Airplane/OnStart,on is set, driving the ignition line (IGT)

activates the Airplane mode. The mode is indicated by the URC “^SYSSTART

AIRPLANE MODE”.

Table 9: AT commands available in Charge-only mode

AT command Use

AT+CALA Set alarm time, configure Airplane mode.

AT+CCLK Set date and time of RTC.

AT^SBC Query status of charger connection.

AT^SBV Monitor supply voltage.

AT^SCTM Query temperature range, enable/disable URCs to report critical temperature ranges

AT^SCFG Enable/disable parameters MEopMode/Airplane or MEopMode/Airplane/OnStart

Table 10: Comparison Charge-only and Charge mode

How to activate mode

Description of mode

Charge mode

Connect charger to charger input of host

application charging circuit and module’s

VCHARGE pin while TC65 is

• operating, e.g. in IDLE or TALK mode

• in SLEEP mode

• Battery can be charged while GSM module

remains operational and registered to the

GSM network.

• In IDLE and TALK mode, the serial interfaces

are accessible. All AT commands can be used

to full extent.

NOTE: If the module operates at maximum

power level (PCL5) and GPRS Class 12 at the

same time the current consumption is higher than

the current supplied by the charger.

Charge-only mode

Connect charger to charger input of host

application charging circuit and module’s

VCHARGE pin while TC65 is

• in Power-down mode

• in Normal mode: Connect charger to

the VCHARGE pin, then enter

AT^SMSO.

NOTE: While trickle charging is in

progress, be sure that the host

application is switched off. If the

application is fed from the trickle charge

current the module might be prevented

from proceeding to software controlled

charging since the current would not be

sufficient.

• Battery can be charged while GSM engine is

deregistered from GSM network.

• Charging runs smoothly due to constant

current consumption.

• The AT interface is accessible and allows to

use the commands listed below.

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