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Ai-Thinker SoC development GPRS C SDK documention

安信可GPRS模组片上(SoC)开发C语言版SDK文档

CSDK代码:GPRS_C_SDK

文档源码:GPRS_C_SDK_DOC

点我在线阅读文档 ( Read English )

关于模组

安信可GPRS模组型号主要有A9A9G。 A9主要有GSM/GPRS(2G)相关功能;A9G除了GSM/GPRS还集成了定位芯片,方便定位相关的应用,更多功能介绍请看硬件介绍章节

模组样品都可以在淘宝购买到:淘宝链接

开发

模组的开发主要提供两种接口:

(一) AT接口

即需要外接MCU使用串口来操作模组

  • 这种方式操作较简单,是需要让模块实施什么动作通过串口向模块发送一个命令即可,这个命令就是一串字符串,具体哪个命令是什么字符串,查AT文档即可,适合刚入门的开发者
  • 模组出厂默认烧录的就是AT固件,拿到模组就可以操作,资料参见这里:安信可wiki
  • 本文档不涉及任何AT操作

(二)SDK片上开发(SoC开发/SDK二次开发)

不需要外接MCU,直接写GPRS模组的固件,对GPRS模组进行编程. A9/A9G GPRS模块使用RDA8955作为主芯片,主频能达到312MHz,除了跑协议栈之外,还有很多空余的资源可以使用,非常适合拿来进行二次开发,可以满足大多数应用需要,但是不建议跑实时性要求非常高的控制类应用

  • 这种方式的优点是不用再外接MCU,直接对模组编程,节约了硬件资源,适合对硬件成本要求高的场景
  • 本文就是使用这种方式,详细介绍如何使用SDK进行开发,并提供相关API说明
  • 本SDK中不包含AT应用及接口,所有操作均通过SDK接口调用

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