283 lines
9.6 KiB
C
283 lines
9.6 KiB
C
/**
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******************************************************************
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* @file bsp_sai.c
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* @author fire
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* @version V1.0
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* @date 2015-xx-xx
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* @brief 按键应用bsp（扫描模式）
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******************************************************************
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* @attention
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*
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* 实验平台:野火 STM32H750开发板
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* 论坛 :http://www.firebbs.cn
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* 淘宝 :http://firestm32.taobao.com
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*
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******************************************************************
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*/
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#include "./sai/bsp_sai.h"
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#include "./Recorder/Recorder.h"
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SAI_HandleTypeDef h_sai;
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SAI_HandleTypeDef h_saib;
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DMA_HandleTypeDef h_txdma; //DMA发送句柄
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DMA_HandleTypeDef h_rxdma; //DMA发送句柄
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void (*SAI_DMA_TX_Callback)(void);
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/**
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* @brief SAI_MSP_Init
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* @param 无
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* @retval 无
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*/
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void SAI_GPIO_Config(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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//Msp Clock Init
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SAI_LRC_GPIO_CLK_ENABLE();
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SAI_BCLK_GPIO_CLK_ENABLE();
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SAI_SDA_GPIO_CLK_ENABLE();
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SAI_MCLK_GPIO_CLK_ENABLE();
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//SAI1_blockA
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GPIO_InitStruct.Pin = SAI_LRC_PIN;
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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_VERY_HIGH;
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GPIO_InitStruct.Alternate = SAI_LRC_GPIO_AF;
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HAL_GPIO_Init(SAI_LRC_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_3;
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GPIO_InitStruct.Alternate = GPIO_AF6_SAI1;
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HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = SAI_BCLK_PIN;
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GPIO_InitStruct.Alternate = SAI_BCLK_GPIO_AF;
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HAL_GPIO_Init(SAI_BCLK_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = SAI_SDA_PIN;
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GPIO_InitStruct.Alternate = SAI_SDA_GPIO_AF;
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HAL_GPIO_Init(SAI_SDA_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = SAI_SAD_PIN;
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GPIO_InitStruct.Alternate = SAI_SDA_GPIO_AF;
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HAL_GPIO_Init(SAI_SAD_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = SAI_MCLK_PIN;
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GPIO_InitStruct.Alternate = SAI_MCLK_GPIO_AF;
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HAL_GPIO_Init(SAI_MCLK_PORT, &GPIO_InitStruct);
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}
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void BSP_AUDIO_OUT_ClockConfig(uint32_t AudioFreq)
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{
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RCC_PeriphCLKInitTypeDef RCC_ExCLKInitStruct;
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RCC_ExCLKInitStruct.PeriphClockSelection=RCC_PERIPHCLK_SAI1;
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RCC_ExCLKInitStruct.Sai1ClockSelection=RCC_SAI1CLKSOURCE_PLL2;
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RCC_ExCLKInitStruct.PLL2.PLL2M=25;
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switch(AudioFreq)
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{
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case SAI_AUDIO_FREQUENCY_44K :
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{
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RCC_ExCLKInitStruct.PLL2.PLL2N=344;
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RCC_ExCLKInitStruct.PLL2.PLL2P=2;
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break;
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}
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default:
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while(1);
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}
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HAL_RCCEx_PeriphCLKConfig(&RCC_ExCLKInitStruct);
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}
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/**
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* @brief SAI_BlockA_Init
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* @param 无
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* @retval 无
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*/
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void SAIxA_Tx_Config(const uint16_t _usStandard, const uint16_t _usWordLen, const uint32_t _usAudioFreq)
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{
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BSP_AUDIO_OUT_ClockConfig(_usAudioFreq);
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SAI_CLK_ENABLE();
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h_sai.Instance = SAI1_Block_A;
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h_sai.Init.AudioMode = SAI_MODEMASTER_TX;//配置为发送模式
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h_sai.Init.Synchro = SAI_ASYNCHRONOUS; //模块内部为异步
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h_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLE;//立刻输出
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h_sai.Init.NoDivider=SAI_MASTERDIVIDER_ENABLE;//使能MCK输出NOACK
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h_sai.Init.FIFOThreshold=SAI_FIFOTHRESHOLD_1QF;//1/4FIFO
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h_sai.Init.MonoStereoMode=SAI_STEREOMODE;
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h_sai.Init.AudioFrequency = _usAudioFreq;
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h_sai.Init.Protocol=SAI_FREE_PROTOCOL; //设置SAI1协议为:自由协议(支持I2S/LSB/MSB/TDM/PCM/DSP等协议)
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h_sai.Init.DataSize=SAI_DATASIZE_16; //设置数据大小
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h_sai.Init.FirstBit=SAI_FIRSTBIT_MSB; //数据MSB位优先
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h_sai.Init.ClockStrobing=SAI_CLOCKSTROBING_RISINGEDGE; //数据在时钟的上升/下降沿选通
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//帧设置
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h_sai.FrameInit.FrameLength=32;
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h_sai.FrameInit.ActiveFrameLength=16;
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h_sai.FrameInit.FSDefinition=SAI_FS_CHANNEL_IDENTIFICATION;//FS信号为SOF信号+通道识别信号
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h_sai.FrameInit.FSPolarity=SAI_FS_ACTIVE_LOW; //FS低电平有效(下降沿)
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h_sai.FrameInit.FSOffset=SAI_FS_BEFOREFIRSTBIT; //在slot0的第一位的前一位使能FS,以匹配飞利浦标准
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//SLOT设置
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h_sai.SlotInit.FirstBitOffset=0; //slot偏移(FBOFF)为0
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h_sai.SlotInit.SlotSize=SAI_SLOTSIZE_16B; //slot大小为32位
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h_sai.SlotInit.SlotNumber=2; //slot数为2个
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h_sai.SlotInit.SlotActive=SAI_SLOTACTIVE_0|SAI_SLOTACTIVE_1;//使能slot0和slot1
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HAL_SAI_Init(&h_sai); //初始化SAI
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// HAL_SAI_InitProtocol(&h_sai, SAI_I2S_STANDARD, _usWordLen, 2);//2--left_channel and right_channel
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SAI1_Block_A->CR1|=1<<17; //写入CR1寄存器中
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__HAL_SAI_ENABLE(&h_sai);
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}
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void SAIxB_Rx_Config(const uint16_t _usStandard, const uint16_t _usWordLen, const uint32_t _usAudioFreq)
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{
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h_saib.Instance = SAI1_Block_B;
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h_saib.Init.AudioMode = SAI_MODESLAVE_RX;//配置为发送模式
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h_saib.Init.Synchro = SAI_SYNCHRONOUS; //模块内部为异步
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h_saib.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLE;//立刻输出
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h_saib.Init.NoDivider=SAI_MASTERDIVIDER_ENABLE;//使能MCK输出NOACK
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h_saib.Init.FIFOThreshold=SAI_FIFOTHRESHOLD_1QF;//1/4FIFO
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h_saib.Init.MonoStereoMode=SAI_STEREOMODE;
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h_saib.Init.AudioFrequency = _usAudioFreq;
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h_saib.Init.Protocol=SAI_FREE_PROTOCOL; //设置SAI1协议为:自由协议(支持I2S/LSB/MSB/TDM/PCM/DSP等协议)
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h_saib.Init.DataSize=SAI_DATASIZE_16; //设置数据大小
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h_saib.Init.FirstBit=SAI_FIRSTBIT_MSB; //数据MSB位优先
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h_saib.Init.ClockStrobing=SAI_CLOCKSTROBING_RISINGEDGE; //数据在时钟的上升/下降沿选通
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//帧设置
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h_saib.FrameInit.FrameLength=32; //设置帧长度为64,左通道32个SCK,右通道32个SCK.
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h_saib.FrameInit.ActiveFrameLength=16; //设置帧同步有效电平长度,在I2S模式下=1/2帧长.
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h_saib.FrameInit.FSDefinition=SAI_FS_CHANNEL_IDENTIFICATION;//FS信号为SOF信号+通道识别信号
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h_saib.FrameInit.FSPolarity=SAI_FS_ACTIVE_LOW; //FS低电平有效(下降沿)
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h_saib.FrameInit.FSOffset=SAI_FS_BEFOREFIRSTBIT; //在slot0的第一位的前一位使能FS,以匹配飞利浦标准
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//SLOT设置
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h_saib.SlotInit.FirstBitOffset=0; //slot偏移(FBOFF)为0
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h_saib.SlotInit.SlotSize=SAI_SLOTSIZE_16B; //slot大小为32位
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h_saib.SlotInit.SlotNumber=2; //slot数为2个
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h_saib.SlotInit.SlotActive=SAI_SLOTACTIVE_0|SAI_SLOTACTIVE_1;//使能slot0和slot1
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HAL_SAI_Init(&h_saib); //初始化SAIB
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SAI1_Block_B->CR1|=1<<17;
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__HAL_SAI_ENABLE(&h_saib);
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}
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void SAIA_TX_DMA_Init(uint32_t buffer0,uint32_t buffer1,const uint32_t num)
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{
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DMA_CLK_ENABLE();
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h_txdma.Instance = DMA_Instance;
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h_txdma.Init.Request = DMA_REQUEST_SAI1_A;
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h_txdma.Init.Direction = DMA_MEMORY_TO_PERIPH;
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h_txdma.Init.PeriphInc = DMA_PINC_DISABLE;
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h_txdma.Init.MemInc = DMA_MINC_ENABLE;
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h_txdma.Init.Mode = DMA_CIRCULAR;
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h_txdma.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
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h_txdma.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD ;
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h_txdma.Init.FIFOMode = DMA_FIFOMODE_DISABLE ;
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h_txdma.Init.Priority = DMA_PRIORITY_HIGH;
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h_txdma.Init.MemBurst=DMA_MBURST_SINGLE; //存储器单次突发传输
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h_txdma.Init.PeriphBurst=DMA_PBURST_SINGLE; //外设突发单次传输
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__HAL_LINKDMA(&h_sai,hdmatx,h_txdma); //将DMA与SAI联系起来
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HAL_DMA_Init(&h_txdma); //初始化DMA
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__HAL_DMA_ENABLE_IT(&h_txdma,DMA_IT_TC);
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HAL_DMAEx_MultiBufferStart(&h_txdma,(uint32_t)buffer0,(uint32_t)&SAI1_Block_A->DR,(uint32_t)buffer1,num);//开启双缓冲
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HAL_NVIC_SetPriority(DMA_IRQn,0,0); //DMA中断优先级
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HAL_NVIC_EnableIRQ(DMA_IRQn);
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}
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void SAIB_RX_DMA_Init(uint32_t buffer0,uint32_t buffer1,const uint32_t num)
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{
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DMA_CLK_ENABLE();
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h_rxdma.Instance = DMA1_Stream3;
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h_rxdma.Init.Request = DMA_REQUEST_SAI1_B;
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h_rxdma.Init.Direction = DMA_PERIPH_TO_MEMORY;
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h_rxdma.Init.PeriphInc = DMA_PINC_DISABLE;
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h_rxdma.Init.MemInc = DMA_MINC_ENABLE;
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h_rxdma.Init.Mode = DMA_CIRCULAR;
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h_rxdma.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
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h_rxdma.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD ;
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h_rxdma.Init.FIFOMode = DMA_FIFOMODE_DISABLE ;
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h_rxdma.Init.Priority = DMA_PRIORITY_HIGH;
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h_rxdma.Init.MemBurst=DMA_MBURST_SINGLE; //存储器单次突发传输
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h_rxdma.Init.PeriphBurst=DMA_PBURST_SINGLE; //外设突发单次传输
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__HAL_LINKDMA(&h_sai,hdmarx,h_rxdma); //将DMA与SAI联系起来
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HAL_DMA_Init(&h_rxdma); //初始化DMA
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__HAL_DMA_ENABLE_IT(&h_rxdma,DMA_IT_TC);
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HAL_DMAEx_MultiBufferStart(&h_rxdma,(uint32_t)&SAI1_Block_B->DR,(uint32_t)buffer0,(uint32_t)buffer1,num);//开启双缓冲
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HAL_NVIC_SetPriority(DMA1_Stream3_IRQn,0,0); //DMA中断优先级
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HAL_NVIC_EnableIRQ(DMA1_Stream3_IRQn);
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}
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void SAI_Play_Stop(void)
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{
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//__HAL_SAI_DISABLE(&h_sai);
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__HAL_DMA_DISABLE(&h_txdma);
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}
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void SAI_Play_Start(void)
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{
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__HAL_DMA_ENABLE(&h_txdma);//开启DMA TX传输
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}
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//SAI开始录音
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void SAI_Rec_Start(void)
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{
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__HAL_DMA_ENABLE(&h_rxdma); //开启DMA RX传输
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}
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//关闭SAI录音
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void SAI_Rec_Stop(void)
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{
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__HAL_DMA_DISABLE(&h_rxdma); //结束录音
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}
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/**
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* @brief DMA conversion complete callback.
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* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
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* the configuration information for the specified DMA module.
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* @retval None
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*/
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void SAI_DMAConvCplt(DMA_HandleTypeDef *hdma)
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{
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MusicPlayer_SAI_DMA_TX_Callback();
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}
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void SAIB_DMAConvCplt(DMA_HandleTypeDef *hdma)
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{
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MusicPlayer_SAI_DMA_RX_Callback();
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}
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/**
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* @brief SPIx_TX_DMA_STREAM中断服务函数
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* @param 无
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* @retval 无
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*/
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void SAI_TX_DMA_STREAM_IRQFUN(void)
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{
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//执行回调函数,读取数据等操作在这里面处理
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h_txdma.XferCpltCallback = SAI_DMAConvCplt;
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h_txdma.XferM1CpltCallback = SAI_DMAConvCplt;
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HAL_DMA_IRQHandler(&h_txdma);
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}
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void SAI_RX_DMA_STREAM_IRQFUN(void)
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{
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//执行回调函数,读取数据等操作在这里面处理
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h_rxdma.XferCpltCallback = SAIB_DMAConvCplt;
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h_rxdma.XferM1CpltCallback = SAIB_DMAConvCplt;
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HAL_DMA_IRQHandler(&h_rxdma);
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}
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