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首页 » 嵌入式系统 » 数字音频实验测试工程,程序演示了通过I2C 总线对 TLV320AIC23 芯片的控制,各种音频环路,多种采样频率,DMA 音频采集和输出等 测试。程序...

数字音频实验测试工程,程序演示了通过I2C 总线对 TLV320AIC23 芯片的控制,各种音频环路,多种采样频率,DMA 音频采集和输出等 测试。程序...

于 2022-08-19 发布 文件大小:13.81 kB
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数字音频实验测试工程,程序演示了通过I2C 总线对 TLV320AIC23 芯片的控制,各种音频环路,多种采样频率,DMA 音频采集和输出等 测试。程序中有详尽的说明。TLV320AIC23 的控制HDL模块Freedev_aic23 的7 号 寄存器提供了读和写两个端口,分别连接到数字音频芯片的AD 和DA 通道,每次可 读出和写入一个32 位宽的数据,分别是16 位左声道和16 位右声道的采样值。每 次数据就是一次采样的结果。如果是48K 采样率,那么每个数据时间间隔就是 1/48000。在这个工程基础上可以输出我们的特殊处理的数据,如正弦波数据,就 可以输出(LOUT)正弦波信号。

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