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XU Bo, GUO Qiu-mi. Research of Audio Codec System Based on SPI Protocol and Its Desig[J]. Journal of Mine Automation, 2011, 37(1): 44-49.
Citation: XU Bo, GUO Qiu-mi. Research of Audio Codec System Based on SPI Protocol and Its Desig[J]. Journal of Mine Automation, 2011, 37(1): 44-49.
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Research of Audio Codec System Based on SPI Protocol and Its Desig

  • Changzhou Automation Research Institute of CCRI., Changhzou 213015, China

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  • The paper introduced SPI communication protocol, proposed a design scheme of audio-stream decoding system by use of ARM-controller LPC2368 and voice-processing chip VS1003, and described structure, transmission theories of SCI and SDI of the system and design of key codes of the system's software in details. The system can realize playing function of audio-analog signals perfectly by initialization debugging and sine-wave testing.
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