Based on GPRS module,a design extern a SCM system,it realizes the GPRS function and make its application so ease through embedding PPP(Point-to-Point Protocol)and TCP/IP (Transfer Control Protocol/Internet Protocol)in SCM (Single Chip Micyoco).

• 本设计在GPRS模块的基础上外扩了一个单片机系统,通过在单片机系统中嵌入PPP协议、TCP/IP协议,使终端设备能够透明地应用GPRS的分组数据业务功能和短消息功能。