Title :
Cache performance analysis based on the EDMA transfer chain
Author :
Sui Long ; Xu Jialin ; Qu Feng ; Bi Guoling ; Zhao Jian ; Sun Qiang
Author_Institution :
Changchun Inst. of Opt. Fine Mech. & Phys., Changchun, China
Abstract :
This paper discusses the use of EDMA in real time image processing systems, high-resolution panoramic vision unfolding system based on TMS320DM642, which continuously update dynamic image data in ping-pong cache. And analyze the cache performance. The cache strategy is based on the channel chaining capability of the EDMA channel controller. Each EDMA transfer synchronized with another transfer. Then the CPU would continuously process the cached data and do not pay attention to any synchronization of each EDMA channel. This cache strategy can obtain the highest performance in DSP system.
Keywords :
cache storage; digital signal processing chips; image resolution; synchronisation; CPU; DSP system; EDMA channel controller; EDMA transfer chain; EDMA transfer synchronization; TMS320DM642; cache performance analysis; channel chaining capability; continuous cached data process; continuous update dynamic image data process; enhanced direct memory access; high-resolution panoramic vision unfolding system; ping-pong cache; real time image processing systems; Cameras; Conferences; Data transfer; Digital signal processing; Equations; Machine vision; Mirrors; Cache; EDMA; chain; panoramic vision;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2013 IEEE 11th International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-0757-1
DOI :
10.1109/ICEMI.2013.6743157
