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本文介绍了基于S3C2410处理器平台,利用I2S总线的USB声卡系统设计。详细阐述了USB声卡通讯的实现,并且根据I2S总线DMA传输的特点实现了环形缓冲区,以提高系统性能,满足音频实时性的要求。
This article introduced based on S3C2410 processor platform, the use of I2S bus USB sound card system design. The realization of USB sound card communication is elaborated in detail, and the ring buffer is realized according to the characteristics of I2S bus DMA transmission to improve system performance and meet the requirement of audio real-time.