TMS320F2812与FPGA配合实现光学镜头的控制

Combination of TMS320F2812 and FPGA for the Control of Camera Lens

文章以光学镜头的精密控制为目的，通过分析光阑大小与光学镜头光通量的关系，简要介绍了一种采用可变光阑的自动调光系统的工作原理，并着重阐述了镜头自激现象的解决方案以及TMS320F2812与FPGA配合实现光学镜头光阑的控制方法。

This paper focuses on the refined control of Camera Lens, by analyzing the relation between the size of diaphragm and the luminous flux of Camera Lens, briefly introducing the principle of automatic dimming system using diaphragm. This paper mainly introduces a way to resolve self - excitation of Camera Lens and elucidate a method which uses TMS320F2812 and FPGA combination to carry out the control of diaphragm.