摘要
设计了一种基于FPGA的CMOS传感器多模式采集系统,研究了普通模式、高速模式、TDI模式三种模式的开发及模式切换。在掌握CMOS面阵传感器的原理和特点的基础上,选用了合适的芯片及外围电路设计用于实现三种模式的CMOS面阵采集器。分析了三种模式下的CMOS面阵采集器的采集特点,采用以FPGA芯片为核心的硬件电路控制整个系统,用Verilog语言对FPGA芯片进行内部功能模块划分,包括模拟SCCB协议以完成对CMOS传感器内各寄存器的配置、开辟同步FIFO、RAM缓存等。最后对USB芯片固件及电脑驱动进行设计,并用VB与MATLAB混编的方式对图像数据进行处理并显示。
A CMOS Image Sensor Acquisition Multi-Mode System development is designed based on a FPGA array. The development and mode-switching of three kinds of modes such as ordinary mode, speed mode and TDI mode are studied. Based on the principle and characteristics of CMOS array sensor, the design of chip and the external circuit are suitable for the realization of CMOS array acquisition of three modes selection. After analyzing characteristics of CMOS array acquisition under the three modes, the hardware circuit based on FPGA chip are used as the core control of the whole system, and the internal function modules of the FPGA chip are divided with the Verilog language, which including the simulation of the SCCB protocol to complete the register CMOS sensor configuration, open up the cache synchronization FIFO, RAM etc. The USB chip firmware and driver of computer are designed, the image data are processed and displayed with mixed VB and MATLAB.
出处
《光电技术应用》
2015年第3期49-53,共5页
Electro-Optic Technology Application
关键词
COMS面阵传感器
多模式采集
FPGA
FPGA
COMS array sensor
multi-mode acquisition
