AT-command interpreter

A simple AT command library implement based on FSM(parse AT-script) , queue(AT-notation buffer) and hash looup(AT-notation store).

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overview

standard record string : "AT+HGABC?;+HGDDD=?;+HGSBD;+HGHIO=1,2,"hello world!\n"\n"

1. at command register sequence : at command struct table --> hash lookup table.

2. at command handle sequence : origin input string -filter-> standard record string -fsm-> list of at_cmd_t --> perform list --> release list.

terminology

1. record : "AT+HGABC?;+HGDDD=?;+HGSBD;+HGHIO=1,2,"hello world!\n"\n"
2. prefix : "AT"
3. command : "+HGABC?" , "+HGDDD=?" , "+HGSBD" and "+HGHIO=1,2,"hello world!\n"\n"
4. command name : "+HGABC" , "+HGDDD" , "+HGSBD" and "+HGHIO"
5. delimiter command : ';'
6. delimiter record : '\n'

AT front-end FSM

Usage

Please refer to smaple.c for usage of libat API.