1、使用單片機串口2與模塊通信；接法如下

　　使用單片機串口2與模塊通信；接法如下

　　STC單片機 GPRS模塊

　　P1.2（RXD2）-》RXD

　　P1.3（TXD2）-》TXD

　　GND -》GND

　　2、板子上電后運行指示燈RUNING_LED會以一秒的頻率閃爍；

　　3、打開代碼修改短信中心號、接收方手機號和短信內容，編譯成功后下載到單片機里面，就可以實現(xiàn)發(fā)送一條文本短信

　　/**

　　******************************************************************************

　　* @file Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c

　　* @author MCD Application Team

　　* @version V3.5.0

　　* @date 08-April-2011

　　* @brief Main Interrupt Service Routines.

　　* This file provides template for all exceptions handler and

　　* peripherals interrupt service routine.

　　******************************************************************************

　　* @attention

　　*

　　* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

　　* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE

　　* TIME. AS A RESULT， STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY

　　* DIRECT， INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING

　　* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE

　　* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.

　　*

　　* 《h2》《center》? COPYRIGHT 2011 STMicroelectronics《/center》《/h2》

　　******************************************************************************

　　*/

　　/* Includes ------------------------------------------------------------------*/

　　#include “stm32f10x_it.h”

　　/** @addtogroup STM32F10x_StdPeriph_Template

　　* @{

　　*/