智能APS控制器的设计与实现

Design and Realization of an Intelligent APS Controller

在分析APS图像传感器STAR1000驱动时序的基础上,设计了一种基于FPGA的智能APS控制器。采用自上而下的设计思想,将该控制器分为3个模块:微处理器接口信号控制模块(McuCtrl)、静态存储器(SRAM)信号控制模块(SramCtrl)和APS信号控制模块(ApsCtrl)。利用VHDL语言进行硬件描述,编译完成后利用Modelsim软件对所设计的控制器仿真分析,最后将其应用到星敏感器原理样机,通过实际系统检验它的有效性。

Based on the analysis of driving time sequence for the Active Pixel Sensor （APS） STAR1000, an intelligent APS controller was designed with FPGA. Using the top-down design philosophy, the controller was divided into three modules： microprocessor interface controlling signal module （McuCtrl）, SRAM controlling signal module （SramCtrl） and APS controlling signal module （ApsCtrl）. VHDL language was used for hardware description. The simulation of the controller is carried out by using Modelsim software after debugging. At last, the controller was used in star sensor prototype, and the effectiveness was tested by an actual system.