为了解决光栅测试复杂和测试设备昂贵的问题, 设计了一种从采集到显示的光栅图像高速采集系统。该采集系统基于ARM 微控制器STM32F103、USB2.0和线阵CCD芯片TCD1209D。通过ARM芯片的GPIO模拟CCD工作时序, 用软件编程的方式配合辅助电路实现了其驱动时序。然后利用STM32F103的片内AD 和USB2.0控制器, 实现了CCD信号的采集和USB传输, 在PC端编写了图像显示软件。结果表明, CCD输出带明暗条纹的光栅图像信号, 通过USB传输, PC上的图像采集软件中能正确显示出该光栅图像信号的图像。

In order to solve the issues of complex grating testing and expensive test equipment, based on ARM micro-controller STM32F103, USB 2.0 and linear array CCD TCD 1209D, a grating image speed acquisition system with acquisition and display function is designed. CCD operation time sequence is simulated by GPIO of ARM chip, and the driving time sequence is realized through software programming and auxiliary circuits. And then, CCD signal acquisition and USB transmission are realized with AD in STM32F103 and USB 2.0 controller and image display software is written in PC. The results show that the grating image signals with light and dark stripes outputted by CCD is transmitted via USB and the images of the signals can be displayed correctly by image acquisition software in PC.