/* I2S3 configuration */ I2S_InitStructure.I2S_Standard = I2S_Standard_PCMShort; I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b; I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable; I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_8k; I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low; I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx; I2S_Init(SPI3, &I2S_InitStructure);用示波器实测WS输出为16KHz
I2S_InitStructure.I2S_Standard = I2S_Standard_Phillips;
I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b; I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable; I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_8k; I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low; I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx; I2S_Init(SPI3, &I2S_InitStructure);用示波器实测WS输出为8KHz
不知道为何在PCM格式下采样频率就不对了？ |
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