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Digital Audio Player Optimization Control Based on Embedded Operating System

XIAO Xue-feng,XIAO Shen-ping,PENG Qiong-lin,YAN Lin-sheng (School of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412000,China)  
At present,digital audio technology have a high-speed development,the high-speed and high performance have becomes a very important problem of digital audio processing technology,combined with the ARM processor and uC/OS-II operating system can fully improve the processing speed and performance.As the control and management unit of digital audio system,STM32 32-bit processor can control the reads of files,the decoding of chips and LCD display.Task scheduling and peripheral equipment management can be achieved unified through the transplantation of the uC/OS-II operating system in ARM7 processor,which makes the processing mechanism of the processor more optimal and sets the priority task,so the conflict between each task can be solved and the processing speed and performance can be improve effectively.
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