Huawei MG323 manual Abort Attributes of AT Commands, Rules for Running AT Commands

HUAWEI MG323 GSM M2M Module
AT Command Interface Specification				Overall Description
	Command	Command Format		Description
	Type
		Read	<name>?	A read command is
		command		executed to read the
				current value of a
				parameter.
		Test	<name>=?	A test command is
		command		executed to check the
				parameter range.
			Note:
			If the MS fails to identify <name>, the MS returns ERROR. If the
			MS can identify <name> and the contents returned by the
			command do not contain parameters, the MS returns OK. If the
			contents returned by the command contain parameters, the MS
			returns the value range of each parameter, and then returns OK.

1.4.3 Abort Attributes of AT Commands

Abort means that the TE sends an instruction to abort a command when the command is being executed. An abort instruction must be sent before a command is completely executed. Therefore, the abort instruction is valid for a command whose execution consumes certain time; however, not all commands of this kind can be aborted. Whether a command can be aborted depends on the abort attribute of the command. Each AT command has its abort attribute, which is alternative. That is, the command is either abortive or not abortive. Abortive commands include certain basic commands and execution commands of action commands. Within 125 ms after the abortive commands are sent, no abort request is accepted. After 125 ms and before the commands are completely executed, if the module receives any character sent by the TE, the commands are aborted immediately.

Abortive commands are as follows:

zATD*99#

zATD*98#

zAT+CLCK

zAT+COPS commands (excluding AT+COPS=?)

zAT^MONI

zAT^MONP

zAT^SMONG

1.4.4Rules for Running AT Commands

1.Each command line contains only one AT command and ends with a carriage return character. In principle, users are not allowed to run S3/S4 format modification commands. This rule is applicable to the communication between the MT and TE programs.

2.To increase the readability and regularity of command and response formats, in addition to the original interfaces specified in standards and protocols, all new interfaces must observe the following rule: No space is added to the end of

Issue 02 (2010-11-23)	Huawei Proprietary and Confidential	6
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