Title :
Implementation of Video Data Transmission Between ARM and DSP Through Embedded Linux
Author :
Zhang, Xing ; Song, Li-Ming
Author_Institution :
Sch. of Electr. Eng. & Inf. Technol., Sichuan Univ., Chengdu
Abstract :
A hardware interface design and corresponding driver structure are presented in this paper, which were used to implement real time video data transmission between ARM (AT91RM9200) and DSP (TMS320DM642) through HPI. The embedded Linux driver achieves storage mapping IO and physical memory remapping, avoids redundant copy of video data between application process and the kernel, increasing data transmission efficiency.
Keywords :
Linux; digital signal processing chips; embedded systems; peripheral interfaces; video signal processing; ARM; DSP; HPI interface; embedded Linux driver; hardware interface design; storage mapping IO; video data transmission; Application software; Data communication; Digital signal processing; Hardware; Kernel; Linux; Protocols; Registers; Video compression; Video sharing; ARM; DSP; Host Port Interface (HPI); embedded Linux driver; video data transmission;
Conference_Titel :
Embedded Software and Systems Symposia, 2008. ICESS Symposia '08. International Conference on
Conference_Location :
Sichuan
Print_ISBN :
978-0-7695-3288-2
DOI :
10.1109/ICESS.Symposia.2008.16
