Title :
A SoPC-based mini VGA video capture and storage system
Author :
Gao, Kun ; Cai, Junbo ; Zhang, Long ; Sheng, Ren-nong
Author_Institution :
Key Lab. of Photoelectronic Imaging Technol. & Syst., Minist. of Educ. of China, Beijing, China
Abstract :
A mini VGA video capture and storage system is proposed, which can capture and convert the analog RGB video signals from VGA input port into 24-bit true-color digital image stream and store it into a mini-SD card in BMP file format. The power supply is one Lithium battery and can be recharged via USB port. The full control logic is realized inside one EP2C35 FPGA chip based on SoPC (System on a Programmable Chip) architecture and internal Nios II processer core acts as the control center, in charge of multi-channel synchronous A/D sample control, SD card read-write operation through SPI bus, BMP file system and other peripheral regulation. Detailed information is focused on the system architecture, hardware design and software programming. The test result shows that this mini-system can process VGA sampling with the resolution up to 1280 × 1024 × 24bit and the capturing and storing time of 7 seconds.
Keywords :
computer displays; coprocessors; field programmable gate arrays; peripheral interfaces; semiconductor storage; system-on-chip; BMP file format; EP2C35 FPGA chip; SoPC; USB port; VGA input port; analog RGB video signal; internal Nios II processer core; lithium battery; mini SD card; mini VGA video capture; multichannel synchronous A/D sample control; storage system; system-on-a-programmable chip; true color digital image stream; Computer architecture; Field programmable gate arrays; Image resolution; Process control; SDRAM; Software; Streaming media; FPGA; Image Capture; Image Storage; SD Card; SoPC; VGA;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6495-1
DOI :
10.1109/BMEI.2010.5639844
