CAJ | 학술논문

介绍了一种基于ARM处理器和CPLD技术的频率源驯服的软、硬件设计与实现方法。在ARM的控制下采用数字PID控制算法产生晶振控制电压，根据所测量的频率值与标称频率值之间的差值大小来调整对应电压控制字的步进幅度，进而达到快速对本地晶振驯服的目的。实验结果表明，驯服后的晶振输出的频率准确度比驯服前提高了大约一个数量级，达到了设计要求。
개소료일충기우ARM처리기화CPLD기술적빈솔원순복적연、경건설계여실현방법。재ARM적공제하채용수자PID공제산법산생정진공제전압，근거소측량적빈솔치여표칭빈솔치지간적차치대소래조정대응전압공제자적보진폭도，진이체도쾌속대본지정진순복적목적。실험결과표명，순복후적정진수출적빈솔준학도비순복전제고료대약일개수량급，체도료설계요구。
Ahardware/softwaredesign and its implementation for frequency-source disciplining based on ARM processor and CPLD(complex programmable logic device) are introduced. Under the control of ARM processor, the control voltage for crystal oscillator is obtained by adopting the digital PID control algorithm, and then the size of step of corresponding voltage control bit is adjusted according to the frequency difference between the measurement and the nominal value, which aims at achieving a fast tamable local crystal oscillator. The experiment results show that the accuracy of the output frequency of the crystal oscillator is improved by one order of magnitude after disciplining, which meets the designrequirements.