Title :
Research and Implementation of ASOC Audio Driver Model on the Blackfin Platform
Author :
Qinghui Wang ; Liang Zhao ; Xiancheng Han
Author_Institution :
Shenyang Univ. of Chem. Technol., Shenyang, China
Abstract :
The development of Audio driver is very important in embed audio system, which decides the performance of audio system directly. WM8731 audio driver is implemented on uclinux embedded operating system by using ASOC driver model in this paper. And in the design, combining the characteristics of Blackfin561 and uclinux sufficiently. To achieve the demand of real time characteristic by using the techniques of interrupt, DMA and Circle buffer storage, the performance of system is enhanced. Audio driver procedure in this paper is proved steady and reliable after many tests.
Keywords :
audio signal processing; system-on-chip; ASOC audio driver model; Blackfin561 characteristics; WM8731 audio driver; blackfin platform; embedded audio system; uclinux embedded operating system; Audio systems; Buffer storage; Codecs; Hardware; Kernel; Linux; Phase change materials; ASOC audio driver; Circle buffer storage; DMA; Interrupt;
Conference_Titel :
Intelligent System Design and Engineering Application (ISDEA), 2012 Second International Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-1-4577-2120-5
DOI :
10.1109/ISdea.2012.672
