File content as of revision 1:48f506a7b488:

/**
  ******************************************************************************
  * File Name          : stm32f4xx_hal_msp.c
  * Date               : 22/06/2014 09:00:07
  * Description        : This file provides code for the MSP Initialization 
  *                      and de-Initialization codes.
  ******************************************************************************
  *
  * COPYRIGHT(c) 2014 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

#include "synthesizer.h"
extern DigitalOut myled;

extern DMA_HandleTypeDef hdma_i2s2_ext_tx;

void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s)
{

//  GPIO_InitTypeDef GPIO_InitStruct;
  if(hi2s->Instance==SPI2)
  {
    /* Peripheral clock enable */
    __SPI2_CLK_ENABLE();
  
    /**I2S2 GPIO Configuration    
    PC3     ------> I2S2_SD
    PB10     ------> I2S2_CK
    PB12     ------> I2S2_WS
    PC6     ------> I2S2_MCK 
    */
/*
    GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
*/
    /* Peripheral DMA init*/
  
    hdma_i2s2_ext_tx.Instance = DMA1_Stream4;
    hdma_i2s2_ext_tx.Init.Channel = DMA_CHANNEL_0;
    hdma_i2s2_ext_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_i2s2_ext_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_i2s2_ext_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_i2s2_ext_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
    hdma_i2s2_ext_tx.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
    hdma_i2s2_ext_tx.Init.Mode = DMA_NORMAL;
    hdma_i2s2_ext_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_i2s2_ext_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_i2s2_ext_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
    hdma_i2s2_ext_tx.Init.MemBurst = DMA_MBURST_SINGLE;
    hdma_i2s2_ext_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
    HAL_DMA_Init(&hdma_i2s2_ext_tx);

    __HAL_LINKDMA(hi2s,hdmatx,hdma_i2s2_ext_tx);
//    myled =1;
  }

}

void HAL_I2S_MspDeInit(I2S_HandleTypeDef* hi2s)
{

  if(hi2s->Instance==SPI2)
  {
    /* Peripheral clock disable */
    __SPI2_CLK_DISABLE();
  
    /**I2S2 GPIO Configuration    
    PC3     ------> I2S2_SD
    PB10     ------> I2S2_CK
    PB12     ------> I2S2_WS
    PC6     ------> I2S2_MCK 
    */
//    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_3|GPIO_PIN_6);

//    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_12);

    /* Peripheral DMA DeInit*/
    HAL_DMA_DeInit(hi2s->hdmatx);
  }

}


/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/