基于C8051F单片机信号发生器设计与应用  

The Design and Application of the Signal Generator Based on C8051F

作　　者：王世虎[1] 刘明杰[1] 李晓峰[1] 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081

出　　处：《微计算机信息》2009年第8期89-91,共3页Control & Automation

基　　金：武器装备预研基金项目;基金申请人:刘明杰;基金名称:弹道加速度测试与控制研究;基金颁发部门:总装备部(51405020305BQ0110)

摘　　要：信号发生器设计以C8051F121单片机为核心,采用串口通信和D/A转换,通过在VB可视化操作界面下参数化调节信号的幅值、脉宽、频率、持续时间,可以得到任意波形。数据通过串口传给单片机,单片机经过锁存器将数据保存在外部存储器中,通过控制电路启动D/A转换产生模拟信号。然后可以作为弹加速度测试装置的输入信号,来验证实际弹侵彻的过载曲线。Signal generator designed based on C8051F121 microcontroller, using serial communication and D / A converter, can achieve arbitrary waveform through the VB operation interface by parametrically conditioning the signal amplitude, pulse width, frequency and duration. The data which is transmitted to MCU through the serial port, is stored in external memory through the data latch, and then the MCU activates the D/A converters to produce analog signals by the control circuits. The analog signal can be then used as input signal of projectile acceleration testing device to verify the actual penetration of the deceleration-time curves of projectile.

关 键 词：信号发生器 C8051F DAC 外部扩展存储器 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]