Senior Design: Sound Monitor
DISCOVERY BOARD AUDIO RECORD AND PLAYBACK. Errors are currently with LCD and QSPI definitions.
Dependencies: BSP
Revision 0:c8cd09e8b137, committed 2015-11-02
- Comitter:
- EricLew
- Date:
- Mon Nov 02 19:42:13 2015 +0000
- Child:
- 1:45300ca86cfe
- Child:
- 2:224572dd69a9
- Commit message:
- Discovery Board Audio Record and Playback. Errors are currently with LCD and QSPI definitions.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BSP.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/Senior-Design-Sound-Monitor/code/BSP/#ad9dfc0179dc
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BSP_DISCO_L476VG.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/ST/code/BSP_DISCO_L476VG/#792b4cbebcb6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CMSIS_DSP_401.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/emh203/code/CMSIS_DSP_401/#3d9c67d97d6f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CMSIS_STM32L4xx.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/Senior-Design-Sound-Monitor/code/CMSIS_STM32L4xx/#0ee1b3bb319a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/STM32L4xx_HAL_Driver.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/Senior-Design-Sound-Monitor/code/STM32L4xx_HAL_Driver/#80ee8f3b695e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Utilities.lib Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/Senior-Design-Sound-Monitor/code/Utilities/#94f43e42d70a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.c Mon Nov 02 19:42:13 2015 +0000
@@ -0,0 +1,490 @@
+/**
+ ******************************************************************************
+ * @file DFSDM/DFSDM_AudioRecord/Src/main.c
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 16-September-2015
+ * @brief This example describes how to use DFSDM HAL API to realize
+ * audio recording.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/** @addtogroup STM32L4xx_HAL_Examples
+ * @{
+ */
+
+/** @addtogroup DFSDM_AudioRecord
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+#define SaturaLH(N, L, H) (((N)<(L))?(L):(((N)>(H))?(H):(N)))
+/* Private variables ---------------------------------------------------------*/
+DFSDM_Channel_HandleTypeDef DfsdmChannelHandle;
+DFSDM_Filter_HandleTypeDef DfsdmFilterHandle;
+DMA_HandleTypeDef hDfsdmDma;
+SAI_HandleTypeDef SaiHandle;
+DMA_HandleTypeDef hSaiDma;
+AUDIO_DrvTypeDef *audio_drv;
+int32_t RecBuff[2048];
+int16_t PlayBuff[4096];
+uint32_t DmaRecHalfBuffCplt = 0;
+uint32_t DmaRecBuffCplt = 0;
+uint32_t PlaybackStarted = 0;
+/* Private function prototypes -----------------------------------------------*/
+void SystemClock_Config(void);
+static void DFSDM_Init(void);
+static void Playback_Init(void);
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+ * @brief Main program
+ * @param None
+ * @retval None
+ */
+int main(void)
+{
+ uint32_t i;
+ /* STM32L4xx HAL library initialization:
+ - Configure the Flash prefetch
+ - Systick timer is configured by default as source of time base, but user
+ can eventually implement his proper time base source (a general purpose
+ timer for example or other time source), keeping in mind that Time base
+ duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
+ handled in milliseconds basis.
+ - Set NVIC Group Priority to 4
+ - Low Level Initialization
+ */
+ HAL_Init();
+
+ /* Configure the system clock to have a frequency of 80 MHz */
+ SystemClock_Config();
+
+ /* Configure LED4 */
+ BSP_LED_Init(LED4);
+
+ /* Initialize DFSDM channels and filter for record */
+ DFSDM_Init();
+
+ /* Initialize playback */
+ Playback_Init();
+
+ /* Start DFSDM conversions */
+ if(HAL_OK != HAL_DFSDM_FilterRegularStart_DMA(&DfsdmFilterHandle, RecBuff, 2048))
+ {
+ Error_Handler();
+ }
+
+ /* Start loopback */
+ while(1)
+ {
+ if(DmaRecHalfBuffCplt == 1)
+ {
+ /* Store values on Play buff */
+ for(i = 0; i < 1024; i++)
+ {
+ PlayBuff[2*i] = SaturaLH((RecBuff[i] >> 8), -32768, 32767);
+ PlayBuff[(2*i)+1] = PlayBuff[2*i];
+ }
+ if(PlaybackStarted == 0)
+ {
+ if(0 != audio_drv->Play(AUDIO_I2C_ADDRESS, (uint16_t *) &PlayBuff[0], 4096))
+ {
+ Error_Handler();
+ }
+ if(HAL_OK != HAL_SAI_Transmit_DMA(&SaiHandle, (uint8_t *) &PlayBuff[0], 4096))
+ {
+ Error_Handler();
+ }
+ PlaybackStarted = 1;
+ }
+ DmaRecHalfBuffCplt = 0;
+ }
+ if(DmaRecBuffCplt == 1)
+ {
+ /* Store values on Play buff */
+ for(i = 1024; i < 2048; i++)
+ {
+ PlayBuff[2*i] = SaturaLH((RecBuff[i] >> 8), -32768, 32767);
+ PlayBuff[(2*i)+1] = PlayBuff[2*i];
+ }
+ DmaRecBuffCplt = 0;
+ }
+ }
+}
+
+/**
+ * @brief System Clock Configuration
+ * The system Clock is configured as follows :
+ * System Clock source = PLL (MSI)
+ * SYSCLK(Hz) = 80000000
+ * HCLK(Hz) = 80000000
+ * AHB Prescaler = 1
+ * APB1 Prescaler = 1
+ * APB2 Prescaler = 1
+ * MSI Frequency(Hz) = 4000000
+ * PLL_M = 1
+ * PLL_N = 40
+ * PLL_R = 2
+ * PLL_P = 7
+ * PLL_Q = 4
+ * Flash Latency(WS) = 4
+ * @param None
+ * @retval None
+ */
+void SystemClock_Config(void)
+{
+ RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+ RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+
+ /* MSI is enabled after System reset, activate PLL with MSI as source */
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
+ RCC_OscInitStruct.MSIState = RCC_MSI_ON;
+ RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
+ RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+ RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
+ RCC_OscInitStruct.PLL.PLLM = 1;
+ RCC_OscInitStruct.PLL.PLLN = 40;
+ RCC_OscInitStruct.PLL.PLLR = 2;
+ RCC_OscInitStruct.PLL.PLLP = 7;
+ RCC_OscInitStruct.PLL.PLLQ = 4;
+ if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+ {
+ /* Initialization Error */
+ while(1);
+ }
+
+ /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+ clocks dividers */
+ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
+ RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+ RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+ RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+ RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+ if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
+ {
+ /* Initialization Error */
+ while(1);
+ }
+}
+
+/**
+ * @brief DFSDM channels and filter initialization
+ * @param None
+ * @retval None
+ */
+static void DFSDM_Init(void)
+{
+ /* Initialize channel 2 */
+ __HAL_DFSDM_CHANNEL_RESET_HANDLE_STATE(&DfsdmChannelHandle);
+ DfsdmChannelHandle.Instance = DFSDM_Channel2;
+ DfsdmChannelHandle.Init.OutputClock.Activation = ENABLE;
+ DfsdmChannelHandle.Init.OutputClock.Selection = DFSDM_CHANNEL_OUTPUT_CLOCK_AUDIO;
+ DfsdmChannelHandle.Init.OutputClock.Divider = 4; /* 11.294MHz/4 = 2.82MHz */
+ DfsdmChannelHandle.Init.Input.Multiplexer = DFSDM_CHANNEL_EXTERNAL_INPUTS;
+ DfsdmChannelHandle.Init.Input.DataPacking = DFSDM_CHANNEL_STANDARD_MODE; /* N.U. */
+ DfsdmChannelHandle.Init.Input.Pins = DFSDM_CHANNEL_SAME_CHANNEL_PINS;
+ DfsdmChannelHandle.Init.SerialInterface.Type = DFSDM_CHANNEL_SPI_RISING;
+ DfsdmChannelHandle.Init.SerialInterface.SpiClock = DFSDM_CHANNEL_SPI_CLOCK_INTERNAL;
+ DfsdmChannelHandle.Init.Awd.FilterOrder = DFSDM_CHANNEL_FASTSINC_ORDER; /* N.U. */
+ DfsdmChannelHandle.Init.Awd.Oversampling = 10; /* N.U. */
+ DfsdmChannelHandle.Init.Offset = 0;
+ DfsdmChannelHandle.Init.RightBitShift = 2;
+ if(HAL_OK != HAL_DFSDM_ChannelInit(&DfsdmChannelHandle))
+ {
+ Error_Handler();
+ }
+
+ /* Initialize filter 0 */
+ __HAL_DFSDM_FILTER_RESET_HANDLE_STATE(&DfsdmFilterHandle);
+ DfsdmFilterHandle.Instance = DFSDM_Filter0;
+ DfsdmFilterHandle.Init.RegularParam.Trigger = DFSDM_FILTER_SW_TRIGGER;
+ DfsdmFilterHandle.Init.RegularParam.FastMode = ENABLE;
+ DfsdmFilterHandle.Init.RegularParam.DmaMode = ENABLE;
+ DfsdmFilterHandle.Init.InjectedParam.Trigger = DFSDM_FILTER_SW_TRIGGER; /* N.U. */
+ DfsdmFilterHandle.Init.InjectedParam.ScanMode = ENABLE; /* N.U. */
+ DfsdmFilterHandle.Init.InjectedParam.DmaMode = DISABLE; /* N.U. */
+ DfsdmFilterHandle.Init.InjectedParam.ExtTrigger = DFSDM_FILTER_EXT_TRIG_TIM1_TRGO; /* N.U. */
+ DfsdmFilterHandle.Init.InjectedParam.ExtTriggerEdge = DFSDM_FILTER_EXT_TRIG_RISING_EDGE; /* N.U. */
+ DfsdmFilterHandle.Init.FilterParam.SincOrder = DFSDM_FILTER_SINC3_ORDER;
+ DfsdmFilterHandle.Init.FilterParam.Oversampling = 64; /* 11.294MHz/(4*64) = 44.1KHz */
+ DfsdmFilterHandle.Init.FilterParam.IntOversampling = 1;
+ if(HAL_OK != HAL_DFSDM_FilterInit(&DfsdmFilterHandle))
+ {
+ Error_Handler();
+ }
+
+ /* Configure regular channel and continuous mode for filter 0 */
+ if(HAL_OK != HAL_DFSDM_FilterConfigRegChannel(&DfsdmFilterHandle, DFSDM_CHANNEL_2, DFSDM_CONTINUOUS_CONV_ON))
+ {
+ Error_Handler();
+ }
+}
+
+/**
+ * @brief Playback initialization
+ * @param None
+ * @retval None
+ */
+static void Playback_Init(void)
+{
+ /* Initialize SAI */
+ __HAL_SAI_RESET_HANDLE_STATE(&SaiHandle);
+
+ SaiHandle.Instance = SAI1_Block_A;
+
+ SaiHandle.Init.AudioMode = SAI_MODEMASTER_TX;
+ SaiHandle.Init.Synchro = SAI_ASYNCHRONOUS;
+ SaiHandle.Init.SynchroExt = SAI_SYNCEXT_DISABLE;
+ SaiHandle.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLE;
+ SaiHandle.Init.NoDivider = SAI_MASTERDIVIDER_ENABLE;
+ SaiHandle.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF;
+ SaiHandle.Init.AudioFrequency = SAI_AUDIO_FREQUENCY_44K;
+ SaiHandle.Init.Mckdiv = 0; /* N.U */
+ SaiHandle.Init.MonoStereoMode = SAI_STEREOMODE;
+ SaiHandle.Init.CompandingMode = SAI_NOCOMPANDING;
+ SaiHandle.Init.TriState = SAI_OUTPUT_NOTRELEASED;
+ SaiHandle.Init.Protocol = SAI_FREE_PROTOCOL;
+ SaiHandle.Init.DataSize = SAI_DATASIZE_16;
+ SaiHandle.Init.FirstBit = SAI_FIRSTBIT_MSB;
+ SaiHandle.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE;
+
+ SaiHandle.FrameInit.FrameLength = 32;
+ SaiHandle.FrameInit.ActiveFrameLength = 16;
+ SaiHandle.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION;
+ SaiHandle.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW;
+ SaiHandle.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT;
+
+ SaiHandle.SlotInit.FirstBitOffset = 0;
+ SaiHandle.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE;
+ SaiHandle.SlotInit.SlotNumber = 2;
+ SaiHandle.SlotInit.SlotActive = (SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_1);
+
+ if(HAL_OK != HAL_SAI_Init(&SaiHandle))
+ {
+ Error_Handler();
+ }
+
+ /* Enable SAI to generate clock used by audio driver */
+ __HAL_SAI_ENABLE(&SaiHandle);
+
+ /* Initialize audio driver */
+ if(CS43L22_ID != cs43l22_drv.ReadID(AUDIO_I2C_ADDRESS))
+ {
+ Error_Handler();
+ }
+ audio_drv = &cs43l22_drv;
+ audio_drv->Reset(AUDIO_I2C_ADDRESS);
+ if(0 != audio_drv->Init(AUDIO_I2C_ADDRESS, OUTPUT_DEVICE_HEADPHONE, 90, AUDIO_FREQUENCY_44K))
+ {
+ Error_Handler();
+ }
+}
+
+/**
+ * @brief This function is executed in case of error occurrence.
+ * @param None
+ * @retval None
+ */
+void Error_Handler(void)
+{
+ while (1)
+ {
+ /* Toggle LED4 with a period of one second */
+ BSP_LED_Toggle(LED4);
+ HAL_Delay(1000);
+ }
+}
+
+/**
+ * @brief Initializes the DFSDM channel MSP.
+ * @param hdfsdm_channel : DFSDM channel handle.
+ * @retval None
+ */
+void HAL_DFSDM_ChannelMspInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
+{
+ /* Init of clock, gpio and PLLSAI1 clock */
+ GPIO_InitTypeDef GPIO_Init;
+ RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
+
+ /* Enable DFSDM clock */
+ __HAL_RCC_DFSDM_CLK_ENABLE();
+
+ /* Configure PE9 for DFSDM_CKOUT and PE7 for DFSDM_DATIN2 */
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+ GPIO_Init.Mode = GPIO_MODE_AF_PP;
+ GPIO_Init.Pull = GPIO_PULLDOWN;
+ GPIO_Init.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_Init.Alternate = GPIO_AF6_DFSDM;
+ GPIO_Init.Pin = GPIO_PIN_9;
+ HAL_GPIO_Init(GPIOE, &GPIO_Init);
+ GPIO_Init.Pin = GPIO_PIN_7;
+ HAL_GPIO_Init(GPIOE, &GPIO_Init);
+
+ /* Configure and enable PLLSAI1 clock to generate 11.294MHz */
+ RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SAI1;
+ RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1N = 48;
+ RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1P = 17;
+ RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1ClockOut = RCC_PLLSAI1_SAI1CLK;
+ RCC_PeriphCLKInitStruct.Sai1ClockSelection = RCC_SAI1CLKSOURCE_PLLSAI1;
+ if(HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct) != HAL_OK)
+ {
+ Error_Handler();
+ }
+}
+
+/**
+ * @brief Initializes the DFSDM filter MSP.
+ * @param hdfsdm_filter : DFSDM filter handle.
+ * @retval None
+ */
+void HAL_DFSDM_FilterMspInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
+{
+ /* Configure DMA1_Channel4 */
+ __HAL_RCC_DMA1_CLK_ENABLE();
+ hDfsdmDma.Init.Request = DMA_REQUEST_0;
+ hDfsdmDma.Init.Direction = DMA_PERIPH_TO_MEMORY;
+ hDfsdmDma.Init.PeriphInc = DMA_PINC_DISABLE;
+ hDfsdmDma.Init.MemInc = DMA_MINC_ENABLE;
+ hDfsdmDma.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
+ hDfsdmDma.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
+ hDfsdmDma.Init.Mode = DMA_CIRCULAR;
+ hDfsdmDma.Init.Priority = DMA_PRIORITY_HIGH;
+ hDfsdmDma.Instance = DMA1_Channel4;
+ __HAL_LINKDMA(hdfsdm_filter, hdmaReg, hDfsdmDma);
+ if (HAL_OK != HAL_DMA_Init(&hDfsdmDma))
+ {
+ Error_Handler();
+ }
+ HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0x01, 0);
+ HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn);
+}
+
+/**
+ * @brief SAI MSP Init.
+ * @param hsai : pointer to a SAI_HandleTypeDef structure that contains
+ * the configuration information for SAI module.
+ * @retval None
+ */
+void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
+{
+ GPIO_InitTypeDef GPIO_Init;
+
+ /* Enable SAI1 clock */
+ __HAL_RCC_SAI1_CLK_ENABLE();
+
+ /* Configure GPIOs used for SAI1 */
+ __HAL_RCC_GPIOE_CLK_ENABLE();
+ GPIO_Init.Mode = GPIO_MODE_AF_PP;
+ GPIO_Init.Pull = GPIO_NOPULL;
+ GPIO_Init.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+ GPIO_Init.Alternate = GPIO_AF13_SAI1;
+ GPIO_Init.Pin = (GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6);
+ HAL_GPIO_Init(GPIOE, &GPIO_Init);
+
+ /* Configure DMA used for SAI1 */
+ __HAL_RCC_DMA2_CLK_ENABLE();
+ hSaiDma.Init.Request = DMA_REQUEST_1;
+ hSaiDma.Init.Direction = DMA_MEMORY_TO_PERIPH;
+ hSaiDma.Init.PeriphInc = DMA_PINC_DISABLE;
+ hSaiDma.Init.MemInc = DMA_MINC_ENABLE;
+ hSaiDma.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
+ hSaiDma.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
+ hSaiDma.Init.Mode = DMA_CIRCULAR;
+ hSaiDma.Init.Priority = DMA_PRIORITY_HIGH;
+ hSaiDma.Instance = DMA2_Channel1;
+ __HAL_LINKDMA(hsai, hdmatx, hSaiDma);
+ if (HAL_OK != HAL_DMA_Init(&hSaiDma))
+ {
+ Error_Handler();
+ }
+ HAL_NVIC_SetPriority(DMA2_Channel1_IRQn, 0x01, 0);
+ HAL_NVIC_EnableIRQ(DMA2_Channel1_IRQn);
+}
+
+/**
+ * @brief Half regular conversion complete callback.
+ * @param hdfsdm_filter : DFSDM filter handle.
+ * @retval None
+ */
+void HAL_DFSDM_FilterRegConvHalfCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
+{
+ DmaRecHalfBuffCplt = 1;
+}
+
+/**
+ * @brief Regular conversion complete callback.
+ * @note In interrupt mode, user has to read conversion value in this function
+ using HAL_DFSDM_FilterGetRegularValue.
+ * @param hdfsdm_filter : DFSDM filter handle.
+ * @retval None
+ */
+void HAL_DFSDM_FilterRegConvCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
+{
+ DmaRecBuffCplt = 1;
+}
+
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief Reports the name of the source file and the source line number
+ * where the assert_param error has occurred.
+ * @param file: pointer to the source file name
+ * @param line: assert_param error line source number
+ * @retval None
+ */
+void assert_failed(uint8_t* file, uint32_t line)
+{
+ /* User can add his own implementation to report the file name and line number,
+ ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+
+ /* Infinite loop */
+ while (1)
+ {
+ }
+}
+#endif
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.h Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,57 @@ +/** + ****************************************************************************** + * @file DFSDM/DFSDM_AudioRecord/Inc/main.h + * @author MCD Application Team + * @version V1.1.0 + * @date 16-September-2015 + * @brief Header for main.c module + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __MAIN_H +#define __MAIN_H + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l4xx_hal.h" +#include "stm32l476g_discovery.h" +#include "audio.h" +#include "../Components/cs43l22/cs43l22.h" + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/* Exported macro ------------------------------------------------------------*/ +/* Exported functions ------------------------------------------------------- */ +void Error_Handler(void); + +#endif /* __MAIN_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Nov 02 19:42:13 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32l4xx_hal_conf.h Mon Nov 02 19:42:13 2015 +0000
@@ -0,0 +1,371 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_hal_conf.h
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 16-September-2015
+ * @brief HAL configuration file.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32L4xx_HAL_CONF_H
+#define __STM32L4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+ * @brief This is the list of modules to be used in the HAL driver
+ */
+#define HAL_MODULE_ENABLED
+/* #define HAL_ADC_MODULE_ENABLED */
+/* #define HAL_CAN_MODULE_ENABLED */
+/* #define HAL_COMP_MODULE_ENABLED */
+#define HAL_CORTEX_MODULE_ENABLED
+/* #define HAL_CRC_MODULE_ENABLED */
+/* #define HAL_CRYP_MODULE_ENABLED */
+/* #define HAL_DAC_MODULE_ENABLED */
+#define HAL_DFSDM_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+/* #define HAL_FIREWALL_MODULE_ENABLED */
+#define HAL_FLASH_MODULE_ENABLED
+/* #define HAL_HCD_MODULE_ENABLED */
+/* #define HAL_NAND_MODULE_ENABLED */
+/* #define HAL_NOR_MODULE_ENABLED */
+/* #define HAL_SRAM_MODULE_ENABLED */
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+/* #define HAL_IRDA_MODULE_ENABLED */
+/* #define HAL_IWDG_MODULE_ENABLED */
+/* #define HAL_LCD_MODULE_ENABLED */
+/* #define HAL_LPTIM_MODULE_ENABLED */
+/* #define HAL_OPAMP_MODULE_ENABLED */
+/* #define HAL_PCD_MODULE_ENABLED */
+#define HAL_PWR_MODULE_ENABLED
+/* #define HAL_QSPI_MODULE_ENABLED */
+#define HAL_RCC_MODULE_ENABLED
+/* #define HAL_RNG_MODULE_ENABLED */
+/* #define HAL_RTC_MODULE_ENABLED */
+#define HAL_SAI_MODULE_ENABLED
+/* #define HAL_SD_MODULE_ENABLED */
+/* #define HAL_SMARTCARD_MODULE_ENABLED */
+/* #define HAL_SMBUS_MODULE_ENABLED */
+/* #define HAL_SPI_MODULE_ENABLED */
+/* #define HAL_SWPMI_MODULE_ENABLED */
+/* #define HAL_TIM_MODULE_ENABLED */
+/* #define HAL_TSC_MODULE_ENABLED */
+#define HAL_UART_MODULE_ENABLED
+/* #define HAL_USART_MODULE_ENABLED */
+/* #define HAL_WWDG_MODULE_ENABLED */
+
+
+/* ########################## Oscillator Values adaptation ####################*/
+/**
+ * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSE is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (HSE_STARTUP_TIMEOUT)
+ #define HSE_STARTUP_TIMEOUT ((uint32_t)5000) /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief Internal Multiple Speed oscillator (MSI) default value.
+ * This value is the default MSI range value after Reset.
+ */
+#if !defined (MSI_VALUE)
+ #define MSI_VALUE ((uint32_t)4000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* MSI_VALUE */
+
+/**
+ * @brief Internal High Speed oscillator (HSI) value.
+ * This value is used by the RCC HAL module to compute the system frequency
+ * (when HSI is used as system clock source, directly or through the PLL).
+ */
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @brief Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE ((uint32_t)32000) /*!< LSI Typical Value in Hz*/
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature.*/
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ * This value is used by the UART, RTC HAL module to compute the system frequency
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE ((uint32_t)32768) /*!< Value of the External oscillator in Hz*/
+#endif /* LSE_VALUE */
+
+#if !defined (LSE_STARTUP_TIMEOUT)
+ #define LSE_STARTUP_TIMEOUT ((uint32_t)5000) /*!< Time out for LSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+ * @brief External clock source for SAI1 peripheral
+ * This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source
+ * frequency.
+ */
+#if !defined (EXTERNAL_SAI1_CLOCK_VALUE)
+ #define EXTERNAL_SAI1_CLOCK_VALUE ((uint32_t)48000) /*!< Value of the SAI1 External clock source in Hz*/
+#endif /* EXTERNAL_SAI1_CLOCK_VALUE */
+
+/**
+ * @brief External clock source for SAI2 peripheral
+ * This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source
+ * frequency.
+ */
+#if !defined (EXTERNAL_SAI2_CLOCK_VALUE)
+ #define EXTERNAL_SAI2_CLOCK_VALUE ((uint32_t)48000) /*!< Value of the SAI2 External clock source in Hz*/
+#endif /* EXTERNAL_SAI2_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+ === you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+ * @brief This is the HAL system configuration section
+ */
+#define VDD_VALUE ((uint32_t)3300) /*!< Value of VDD in mv */
+#define TICK_INT_PRIORITY ((uint32_t)0x0F) /*!< tick interrupt priority */
+#define USE_RTOS 0
+#define PREFETCH_ENABLE 1
+#define INSTRUCTION_CACHE_ENABLE 1
+#define DATA_CACHE_ENABLE 1
+
+/* ########################## Assert Selection ############################## */
+/**
+ * @brief Uncomment the line below to expanse the "assert_param" macro in the
+ * HAL drivers code
+ */
+/* #define USE_FULL_ASSERT 1 */
+
+/* Includes ------------------------------------------------------------------*/
+/**
+ * @brief Include module's header file
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32l4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32l4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+ #include "stm32l4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_DFSDM_MODULE_ENABLED
+ #include "stm32l4xx_hal_dfsdm.h"
+#endif /* HAL_DFSDM_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32l4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32l4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32l4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+ #include "stm32l4xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32l4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+ #include "stm32l4xx_hal_cryp.h"
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32l4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FIREWALL_MODULE_ENABLED
+ #include "stm32l4xx_hal_firewall.h"
+#endif /* HAL_FIREWALL_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32l4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32l4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32l4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32l4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32l4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32l4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_lcd.h"
+#endif /* HAL_LCD_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+#include "stm32l4xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+
+#ifdef HAL_OPAMP_MODULE_ENABLED
+#include "stm32l4xx_hal_opamp.h"
+#endif /* HAL_OPAMP_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32l4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_QSPI_MODULE_ENABLED
+ #include "stm32l4xx_hal_qspi.h"
+#endif /* HAL_QSPI_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32l4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32l4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32l4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32l4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+ #include "stm32l4xx_hal_smbus.h"
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32l4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_SWPMI_MODULE_ENABLED
+ #include "stm32l4xx_hal_swpmi.h"
+#endif /* HAL_SWPMI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32l4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32l4xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32l4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32l4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32l4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32l4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32l4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32l4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function
+ * which reports the name of the source file and the source
+ * line number of the call that failed.
+ * If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(uint8_t* file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32l4xx_it.c Mon Nov 02 19:42:13 2015 +0000
@@ -0,0 +1,199 @@
+/**
+ ******************************************************************************
+ * @file DFSDM/DFSDM_AudioRecord/Src/stm32l4xx_it.c
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 16-September-2015
+ * @brief Main Interrupt Service Routines.
+ * This file provides template for all exceptions handler and
+ * peripherals interrupt service routine.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+#include "stm32l4xx_it.h"
+
+/** @addtogroup STM32L4xx_HAL_Examples
+ * @{
+ */
+
+/** @addtogroup DFSDM_AudioRecord
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+extern DMA_HandleTypeDef hDfsdmDma;
+extern SAI_HandleTypeDef SaiHandle;
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/******************************************************************************/
+/* Cortex-M4 Processor Exceptions Handlers */
+/******************************************************************************/
+
+/**
+ * @brief This function handles NMI exception.
+ * @param None
+ * @retval None
+ */
+void NMI_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Hard Fault exception.
+ * @param None
+ * @retval None
+ */
+void HardFault_Handler(void)
+{
+ /* Go to infinite loop when Hard Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Memory Manage exception.
+ * @param None
+ * @retval None
+ */
+void MemManage_Handler(void)
+{
+ /* Go to infinite loop when Memory Manage exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Bus Fault exception.
+ * @param None
+ * @retval None
+ */
+void BusFault_Handler(void)
+{
+ /* Go to infinite loop when Bus Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Usage Fault exception.
+ * @param None
+ * @retval None
+ */
+void UsageFault_Handler(void)
+{
+ /* Go to infinite loop when Usage Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles SVCall exception.
+ * @param None
+ * @retval None
+ */
+void SVC_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Debug Monitor exception.
+ * @param None
+ * @retval None
+ */
+void DebugMon_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles PendSVC exception.
+ * @param None
+ * @retval None
+ */
+void PendSV_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles SysTick Handler.
+ * @param None
+ * @retval None
+ */
+void SysTick_Handler(void)
+{
+ HAL_IncTick();
+}
+
+/******************************************************************************/
+/* STM32L4xx Peripherals Interrupt Handlers */
+/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
+/* available peripheral interrupt handler's name please refer to the startup */
+/* file (startup_stm32l4xx.s). */
+/******************************************************************************/
+
+/**
+ * @brief This function handles DMA1_Channel4 interrupt request.
+ * @param None
+ * @retval None
+ */
+void DMA1_Channel4_IRQHandler(void)
+{
+ HAL_DMA_IRQHandler(&hDfsdmDma);
+}
+
+/**
+ * @brief This function handles SAI DMA interrupt request.
+ * @param None
+ * @retval None
+ */
+void DMA2_Channel1_IRQHandler(void)
+{
+ HAL_DMA_IRQHandler(SaiHandle.hdmatx);
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32l4xx_it.h Mon Nov 02 19:42:13 2015 +0000
@@ -0,0 +1,72 @@
+/**
+ ******************************************************************************
+ * @file DFSDM/DFSDM_AudioRecord/Inc/stm32l4xx_it.h
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 16-September-2015
+ * @brief This file contains the headers of the interrupt handlers.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32L4xx_IT_H
+#define __STM32L4xx_IT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+void NMI_Handler(void);
+void HardFault_Handler(void);
+void MemManage_Handler(void);
+void BusFault_Handler(void);
+void UsageFault_Handler(void);
+void SVC_Handler(void);
+void DebugMon_Handler(void);
+void PendSV_Handler(void);
+void SysTick_Handler(void);
+
+void DMA1_Channel4_IRQHandler(void);
+void DMA2_Channel1_IRQHandler(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_IT_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/system_stm32l4xx.c Mon Nov 02 19:42:13 2015 +0000
@@ -0,0 +1,354 @@
+/**
+ ******************************************************************************
+ * @file system_stm32l4xx.c
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 16-September-2015
+ * @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File
+ *
+ * This file provides two functions and one global variable to be called from
+ * user application:
+ * - SystemInit(): This function is called at startup just after reset and
+ * before branch to main program. This call is made inside
+ * the "startup_stm32l4xx.s" file.
+ *
+ * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+ * by the user application to setup the SysTick
+ * timer or configure other parameters.
+ *
+ * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+ * be called whenever the core clock is changed
+ * during program execution.
+ *
+ * After each device reset the MSI (4 MHz) is used as system clock source.
+ * Then SystemInit() function is called, in "startup_stm32l4xx.s" file, to
+ * configure the system clock before to branch to main program.
+ *
+ * This file configures the system clock as follows:
+ *=============================================================================
+ *-----------------------------------------------------------------------------
+ * System Clock source | MSI
+ *-----------------------------------------------------------------------------
+ * SYSCLK(Hz) | 4000000
+ *-----------------------------------------------------------------------------
+ * HCLK(Hz) | 4000000
+ *-----------------------------------------------------------------------------
+ * AHB Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * APB1 Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * APB2 Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * PLL_M | 1
+ *-----------------------------------------------------------------------------
+ * PLL_N | 8
+ *-----------------------------------------------------------------------------
+ * PLL_P | 7
+ *-----------------------------------------------------------------------------
+ * PLL_Q | 2
+ *-----------------------------------------------------------------------------
+ * PLL_R | 2
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_P | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_Q | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI1_R | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_P | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_Q | NA
+ *-----------------------------------------------------------------------------
+ * PLLSAI2_R | NA
+ *-----------------------------------------------------------------------------
+ * Require 48MHz for USB OTG FS, | Disabled
+ * SDIO and RNG clock |
+ *-----------------------------------------------------------------------------
+ *=============================================================================
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * 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.
+ *
+ ******************************************************************************
+ */
+
+/** @addtogroup CMSIS
+ * @{
+ */
+
+/** @addtogroup stm32l4xx_system
+ * @{
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Includes
+ * @{
+ */
+
+#include "stm32l4xx.h"
+
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined (MSI_VALUE)
+ #define MSI_VALUE ((uint32_t)4000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* MSI_VALUE */
+
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_TypesDefinitions
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Defines
+ * @{
+ */
+
+/************************* Miscellaneous Configuration ************************/
+/*!< Uncomment the following line if you need to relocate your vector Table in
+ Internal SRAM. */
+/* #define VECT_TAB_SRAM */
+#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
+ This value must be a multiple of 0x200. */
+/******************************************************************************/
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Variables
+ * @{
+ */
+ /* This variable is updated in three ways:
+ 1) by calling CMSIS function SystemCoreClockUpdate()
+ 2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+ 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+ Note: If you use this function to configure the system clock; then there
+ is no need to call the 2 first functions listed above, since SystemCoreClock
+ variable is updated automatically.
+ */
+ uint32_t SystemCoreClock = 4000000;
+
+ const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+ const uint32_t MSIRangeTable[12] = {100000, 200000, 400000, 800000, 1000000, 2000000, \
+ 4000000, 8000000, 16000000, 24000000, 32000000, 48000000};
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_FunctionPrototypes
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32L4xx_System_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Setup the microcontroller system.
+ * @param None
+ * @retval None
+ */
+
+void SystemInit(void)
+{
+ /* FPU settings ------------------------------------------------------------*/
+ #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
+ SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
+ #endif
+ /* Reset the RCC clock configuration to the default reset state ------------*/
+ /* Set MSION bit */
+ RCC->CR |= RCC_CR_MSION;
+
+ /* Reset CFGR register */
+ RCC->CFGR = 0x00000000;
+
+ /* Reset HSEON, CSSON , HSION, and PLLON bits */
+ RCC->CR &= (uint32_t)0xEAF6FFFF;
+
+ /* Reset PLLCFGR register */
+ RCC->PLLCFGR = 0x00000800;
+
+ /* Reset HSEBYP bit */
+ RCC->CR &= (uint32_t)0xFFFBFFFF;
+
+ /* Disable all interrupts */
+ RCC->CIER = 0x00000000;
+
+ /* Configure the Vector Table location add offset address ------------------*/
+#ifdef VECT_TAB_SRAM
+ SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
+#else
+ SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
+#endif
+}
+
+/**
+ * @brief Update SystemCoreClock variable according to Clock Register Values.
+ * The SystemCoreClock variable contains the core clock (HCLK), it can
+ * be used by the user application to setup the SysTick timer or configure
+ * other parameters.
+ *
+ * @note Each time the core clock (HCLK) changes, this function must be called
+ * to update SystemCoreClock variable value. Otherwise, any configuration
+ * based on this variable will be incorrect.
+ *
+ * @note - The system frequency computed by this function is not the real
+ * frequency in the chip. It is calculated based on the predefined
+ * constant and the selected clock source:
+ *
+ * - If SYSCLK source is MSI, SystemCoreClock will contain the MSI_VALUE(*)
+ *
+ * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**)
+ *
+ * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
+ *
+ * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
+ * or HSI_VALUE(*) or MSI_VALUE(*) multiplied/divided by the PLL factors.
+ *
+ * (*) MSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 4 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (**) HSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 16 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (***) HSE_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+ * 8 MHz), user has to ensure that HSE_VALUE is same as the real
+ * frequency of the crystal used. Otherwise, this function may
+ * have wrong result.
+ *
+ * - The result of this function could be not correct when using fractional
+ * value for HSE crystal.
+ *
+ * @param None
+ * @retval None
+ */
+void SystemCoreClockUpdate(void)
+{
+ uint32_t tmp = 0, msirange = 0, pllvco = 0, pllr = 2, pllsource = 0, pllm = 2;
+
+ /* Get MSI Range frequency--------------------------------------------------*/
+ if((RCC->CR & RCC_CR_MSIRGSEL) == RESET)
+ { /* MSISRANGE from RCC_CSR applies */
+ msirange = (RCC->CSR & RCC_CSR_MSISRANGE) >> 8;
+ }
+ else
+ { /* MSIRANGE from RCC_CR applies */
+ msirange = (RCC->CR & RCC_CR_MSIRANGE) >> 4;
+ }
+ /*MSI frequency range in HZ*/
+ msirange = MSIRangeTable[msirange];
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ switch (RCC->CFGR & RCC_CFGR_SWS)
+ {
+ case 0x00: /* MSI used as system clock source */
+ SystemCoreClock = msirange;
+ break;
+
+ case 0x04: /* HSI used as system clock source */
+ SystemCoreClock = HSI_VALUE;
+ break;
+
+ case 0x08: /* HSE used as system clock source */
+ SystemCoreClock = HSE_VALUE;
+ break;
+
+ case 0x0C: /* PLL used as system clock source */
+ /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
+ SYSCLK = PLL_VCO / PLLR
+ */
+ pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
+ pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> 4) + 1 ;
+
+ switch (pllsource)
+ {
+ case 0x02: /* HSI used as PLL clock source */
+ pllvco = (HSI_VALUE / pllm);
+ break;
+
+ case 0x03: /* HSE used as PLL clock source */
+ pllvco = (HSE_VALUE / pllm);
+ break;
+
+ default: /* MSI used as PLL clock source */
+ pllvco = (msirange / pllm);
+ break;
+ }
+ pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 8);
+ pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 25) + 1) * 2;
+ SystemCoreClock = pllvco/pllr;
+ break;
+
+ default:
+ SystemCoreClock = msirange;
+ break;
+ }
+ /* Compute HCLK clock frequency --------------------------------------------*/
+ /* Get HCLK prescaler */
+ tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+ /* HCLK clock frequency */
+ SystemCoreClock >>= tmp;
+}
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+