I2S_Init のバックアップ(No.2)

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• バックアップ一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• I2S_Init へ行く。
  • 1 (2011-04-25 (月) 15:55:15)
  • 2 (2011-04-25 (月) 16:03:18)

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ファームウェア関数一覧

I2S_Init †

ヘッダ宣言 †

関数プロトタイプ †

void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct)

動作 †

• SPIx/I2Sx周辺回路のI2Sモード時の設定をします。

引数 †

• SPIx
  

  SPIx	説明
  SPI2	SPI2を選択
  SPI3	SPI3を選択

• I2S_InitStruct
  stm32f10x_spi.hで定義されているI2S_InitTypeDef構造体へのポインタです。

  typedef struct
  {
   uint16_t I2S_Mode;
   uint16_t I2S_Standard;
   uint16_t I2S_DataFormat;
   uint16_t I2S_MCLKOutput;
   uint16_t I2S_AudioFreq;
   uint16_t I2S_CPOL;
  } I2S_InitTypeDef;

  • I2S_Mode

    I2S_Mode	説明
    I2S_Mode_SlaveTx	I2S peripheral is configured as Slave and Transmitter
    I2S_Mode_SlaveRx	I2S peripheral is configured as Slave and Receiver
    I2S_Mode_MasterTx	I2S peripheral is configured as Master and Transmitter
    I2S_Mode_MasterRx	I2S peripheral is configured as Master and Receiver

  • I2S_Standard

    I2S_Standard	説明
    I2S_Standardd_Phillips	Uses the Phillips I2S standard
    I2S_Standard_MSB Uses	the MSB standard
    I2S_Standard_LSB Uses	the LSB standard
    I2S_Standard_PCMShort	Uses PCM mode with short frame
    I2S_Standard_PCMLong	Uses PCM mode with long frame

  • I2S_DataFormat

    I2S_DataFormat	説明
    I2S_DataFormat_16b	Data are 16 bits long in 16 bits packet frame
    I2S_DataFormat_16bextended	Data are 16 bits long in 32 bits packet frame
    I2S_DataFormat_24b	Data are 24 bits long in 32 bits packet frame
    I2S_DataFormat_32b	Data are 32 bits long in 32 bits packet frame

  • I2S_MCLKOutput #include(): Limit exceeded: Macro/I2S_MCLKOutput
    
  • I2S_AudioFreq #include(): Limit exceeded: Macro/I2S_AudioFreq
    
  • I2S_CPOL #include(): No such page: Macro/I2S clock idle state
    

出力値 †

• 無し

戻り値 †

• 無し

場所 †

呼び出し関数 †

• 無し

サンプル †

/* Initialize the SPI2 according to the I2S_InitStructure members */
I2S_InitTypeDef I2S_InitStructure;
I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;
I2S_InitStructure.I2S_Standard = I2S_Standard_Phillips;
I2S_InitStructure.I2S_DataFormat = I2S__DataFormat_16bextended;
I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Enable;
I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_16K;
I2S_InitStructure.I2S_CPOL = SPI_CPOL_Low;
I2S_Init(SPI2, &I2S_InitStructure);

参照 †

     

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