【摘要】 提出了基于MC35i模块的GSM移动通信终端的设计方案,运用AVR微控制器ATmega48进行系统控制。完成了启动电路、SIM卡电路、稳压电源供电电路以及控制电路等硬件设计,并对硬件进行了系统的测试。更多还原

【Abstract】 In this paper,GSM mobile communications terminal system based on MC35i is proposed,which is used to ATmega48.The hardware design including the start-up circuit,SIM circuit,control circuit and the power supply voltage circuit and have been finished,then system test are performed.更多还原