基于CPLD的空间面阵CCD相机驱动时序发生器的设计与硬件实现

在分析e2v公司的CCD47-20 Backthinned NIMO型CCD器件驱动时序关系的基础上, 设计了可调帧频和曝光时间的空间面阵CCD相机驱动时序发生器及其硬件电路.选用可编程逻辑器件作为硬件设计载体,使用VHDL语言对驱动时序发生器进行了硬件描述.针对ALTERA公司的EPM9400LC84-15对设计进行了RTL级仿真及配置,完成了时序发生器的硬件电路.硬件实验结果表明,所研制的驱动时序发生器不仅可以满足空间CCD相机的驱动要求,而且还可以调节帧频和曝光时间.

Designing on Driving Schedule Generator for Space Array CCD Camera and Hardware Based on CPLD

Driving schedules of CCD47-20 Backthinned NIMO produced by e2v have been examined.The driving schedule generator with frame frequency and exposure time and its hardware have been designed for space array CCD camera.Complex programmable logic device(CPLD) is chosen as the hardware design platform.Driving schedule generator is described with VHDL.The RTL simulation is fulfilled and design is fitted into EPM9400LC84-15(a kind of CPLD products that made e2v).The hardware of driving schedule generator is also finished.The experiments show that designed generator is suitable for the driving of space array CCD camera,furthermore frame frequency and exposure time of camera could be adjusted according to different applications.