An Infrared Camera Electronic Whiteboard Soc Prototype Design

As a new type of digital tools, electronic whiteboard is increasingly used in areas such as teaching and office. Among a wide variety of e-whiteboards, the type based on the infrared camera, because of its fast response, low cost, requiring no special tools and easiness to implement multi-touch, becomes the future trend and current research hotspot. At the same time, it is foreseeable in the near future that the e-whiteboard will be separated from the huge projection board and become a portable device. Therefore, in order to implement low power, low cost and portable e-whiteboard, an SOC prototype is designed and implemented in this thesis.The SOC prototype, with open source processor OR1200as its core, is designed based on AMBA architecture. First of all, this paper modeled the system using a unified language and assessed the computation complexity of different parts. Based on the result, the system was divided into hardware and software. Then determine the hardware architecture and modular division. The system-specific modules, such as the hardware accelerator, were independently designed. The others were implemented with IPs. After programing software driver and designing simulation models, the SOC was verified by software and hardware co-simulation. Finally, the design was downloaded to FPGA and debugged in a hardware platform.By designing the SOC prototype, the whole whiteboard control system was successfully integrated into a single FPGA. This led to much lower cost and system complexity. At the same time, by designing the image processing hardware accelerator, the system speed was significant improved. When run at a frequency of50MHz, the image store and process take only0.66ms, which is dozens of times faster than C8051or ARM platform.