During modifying software of air-to-air missile digital control actuator , a serial loading sys-tem using serial communication interface loading program is designed to avoid disassembling production repeatedly . Software serial loading realizes via serial asynchronous communication with ROM of TMS320LF2407 chip-self.Practical applications prove that the system can load soft expediently and fast , and can avoid disassembling production and improve producing efficiency .%在数字舵机软件修改时，为了避免空空导弹产品反复拆装，保证导弹的可靠性，设计了一套利用产品串行通信接口加载程序的串行加载系统。针对控制芯片TMS320 LF2407，利用芯片自带的ROM，采用串行异步通信方式实现软件串行加载。实际应用表明，该系统可以方便、快捷地进行舵机软件加载，避免了反复拆装产品，提高了生产效率。
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