209 lines
7.1 KiB
C
209 lines
7.1 KiB
C
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/**
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******************************************************************************
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* File Name : I2S.c
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* Description : This file provides code for the configuration
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* of the I2S instances.
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******************************************************************************
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*
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* Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "i2s.h"
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#include "gpio.h"
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#include "dma.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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I2S_HandleTypeDef hi2s3;
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DMA_HandleTypeDef hdma_spi3_tx;
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DMA_HandleTypeDef hdma_i2s3_ext_rx;
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/* I2S3 init function */
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void MX_I2S3_Init(void)
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{
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hi2s3.Instance = SPI3;
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hi2s3.Init.Mode = I2S_MODE_MASTER_TX;
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hi2s3.Init.Standard = I2S_STANDARD_PHILIPS;
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hi2s3.Init.DataFormat = I2S_DATAFORMAT_16B;
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hi2s3.Init.MCLKOutput = I2S_MCLKOUTPUT_DISABLE;
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hi2s3.Init.AudioFreq = I2S_AUDIOFREQ_48K;
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hi2s3.Init.CPOL = I2S_CPOL_LOW;
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hi2s3.Init.ClockSource = I2S_CLOCK_PLL;
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hi2s3.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_ENABLE;
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if (HAL_I2S_Init(&hi2s3) != HAL_OK)
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{
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Error_Handler();
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}
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}
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void HAL_I2S_MspInit(I2S_HandleTypeDef* i2sHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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if(i2sHandle->Instance==SPI3)
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{
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/* USER CODE BEGIN SPI3_MspInit 0 */
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/* USER CODE END SPI3_MspInit 0 */
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/* Peripheral clock enable */
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__HAL_RCC_SPI3_CLK_ENABLE();
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/**I2S3 GPIO Configuration
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PA15 ------> I2S3_WS
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PC10 ------> I2S3_CK
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PC11 ------> I2S3_ext_SD
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PC12 ------> I2S3_SD
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_15;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.Alternate = GPIO_AF5_I2S3ext;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/* Peripheral DMA init*/
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hdma_spi3_tx.Instance = DMA1_Stream5;
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hdma_spi3_tx.Init.Channel = DMA_CHANNEL_0;
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hdma_spi3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_spi3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_spi3_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_spi3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
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hdma_spi3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
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hdma_spi3_tx.Init.Mode = DMA_CIRCULAR;
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hdma_spi3_tx.Init.Priority = DMA_PRIORITY_HIGH;
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hdma_spi3_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
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hdma_spi3_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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hdma_spi3_tx.Init.MemBurst = DMA_MBURST_SINGLE;
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hdma_spi3_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
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if (HAL_DMA_Init(&hdma_spi3_tx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(i2sHandle,hdmatx,hdma_spi3_tx);
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hdma_i2s3_ext_rx.Instance = DMA1_Stream2;
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hdma_i2s3_ext_rx.Init.Channel = DMA_CHANNEL_2;
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hdma_i2s3_ext_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_i2s3_ext_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_i2s3_ext_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_i2s3_ext_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
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hdma_i2s3_ext_rx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
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hdma_i2s3_ext_rx.Init.Mode = DMA_CIRCULAR;
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hdma_i2s3_ext_rx.Init.Priority = DMA_PRIORITY_HIGH;
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hdma_i2s3_ext_rx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
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hdma_i2s3_ext_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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hdma_i2s3_ext_rx.Init.MemBurst = DMA_MBURST_INC4;
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hdma_i2s3_ext_rx.Init.PeriphBurst = DMA_PBURST_SINGLE;
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if (HAL_DMA_Init(&hdma_i2s3_ext_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(i2sHandle,hdmarx,hdma_i2s3_ext_rx);
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/* USER CODE BEGIN SPI3_MspInit 1 */
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/* USER CODE END SPI3_MspInit 1 */
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}
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}
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void HAL_I2S_MspDeInit(I2S_HandleTypeDef* i2sHandle)
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{
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if(i2sHandle->Instance==SPI3)
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{
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/* USER CODE BEGIN SPI3_MspDeInit 0 */
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/* USER CODE END SPI3_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_SPI3_CLK_DISABLE();
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/**I2S3 GPIO Configuration
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PA15 ------> I2S3_WS
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PC10 ------> I2S3_CK
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PC11 ------> I2S3_ext_SD
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PC12 ------> I2S3_SD
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*/
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_15);
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HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12);
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/* Peripheral DMA DeInit*/
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HAL_DMA_DeInit(i2sHandle->hdmatx);
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HAL_DMA_DeInit(i2sHandle->hdmarx);
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}
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/* USER CODE BEGIN SPI3_MspDeInit 1 */
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/* USER CODE END SPI3_MspDeInit 1 */
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}
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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