main.c

00001 /**
00002   ******************************************************************************
00003   * @file    DFSDM/DFSDM_AudioRecord/Src/main.c
00004   * @author  MCD Application Team
00005   * @version V1.1.0
00006   * @date    16-September-2015
00007   * @brief   This example describes how to use DFSDM HAL API to realize
00008   *          audio recording.
00009   ******************************************************************************
00010   * @attention
00011   *
00012   * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
00013   *
00014   * Redistribution and use in source and binary forms, with or without modification,
00015   * are permitted provided that the following conditions are met:
00016   *   1. Redistributions of source code must retain the above copyright notice,
00017   *      this list of conditions and the following disclaimer.
00018   *   2. Redistributions in binary form must reproduce the above copyright notice,
00019   *      this list of conditions and the following disclaimer in the documentation
00020   *      and/or other materials provided with the distribution.
00021   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00022   *      may be used to endorse or promote products derived from this software
00023   *      without specific prior written permission.
00024   *
00025   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00026   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00028   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00029   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00030   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00031   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00032   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00033   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00034   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035   *
00036   ******************************************************************************
00037   */
00038 
00039 /* Includes ------------------------------------------------------------------*/
00040 #include "main.h"
00041 
00042 /** @addtogroup STM32L4xx_HAL_Examples
00043   * @{
00044   */
00045 
00046 /** @addtogroup DFSDM_AudioRecord
00047   * @{
00048   */
00049 
00050 /* Private typedef -----------------------------------------------------------*/
00051 /* Private define ------------------------------------------------------------*/
00052 /* Private macro -------------------------------------------------------------*/
00053 #define SaturaLH(N, L, H) (((N)<(L))?(L):(((N)>(H))?(H):(N)))
00054 /* Private variables ---------------------------------------------------------*/
00055 DFSDM_Channel_HandleTypeDef  DfsdmChannelHandle;
00056 DFSDM_Filter_HandleTypeDef   DfsdmFilterHandle;
00057 DMA_HandleTypeDef            hDfsdmDma;
00058 SAI_HandleTypeDef            SaiHandle;
00059 DMA_HandleTypeDef            hSaiDma;
00060 AUDIO_DrvTypeDef            *audio_drv;
00061 int32_t                      RecBuff[2048];
00062 int16_t                      PlayBuff[4096];
00063 uint32_t                     DmaRecHalfBuffCplt  = 0;
00064 uint32_t                     DmaRecBuffCplt      = 0;
00065 uint32_t                     PlaybackStarted         = 0;
00066 /* Private function prototypes -----------------------------------------------*/
00067 void SystemClock_Config(void);
00068 static void DFSDM_Init(void);
00069 static void Playback_Init(void);
00070 
00071 /* Private functions ---------------------------------------------------------*/
00072 
00073 /**
00074   * @brief  Main program
00075   * @param  None
00076   * @retval None
00077   */
00078 int main(void)
00079 {
00080   uint32_t i;
00081   /* STM32L4xx HAL library initialization:
00082        - Configure the Flash prefetch
00083        - Systick timer is configured by default as source of time base, but user 
00084          can eventually implement his proper time base source (a general purpose 
00085          timer for example or other time source), keeping in mind that Time base 
00086          duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and 
00087          handled in milliseconds basis.
00088        - Set NVIC Group Priority to 4
00089        - Low Level Initialization
00090      */
00091   HAL_Init();
00092 
00093   /* Configure the system clock to have a frequency of 80 MHz */
00094   SystemClock_Config();
00095 
00096   /* Configure LED4 */
00097   BSP_LED_Init(LED4);
00098 
00099   /* Initialize DFSDM channels and filter for record */
00100   DFSDM_Init();
00101 
00102   /* Initialize playback */
00103   Playback_Init();
00104   
00105   /* Start DFSDM conversions */
00106   if(HAL_OK != HAL_DFSDM_FilterRegularStart_DMA(&DfsdmFilterHandle, RecBuff, 2048))
00107   {
00108     Error_Handler();
00109   }
00110   
00111   /* Start loopback */
00112   while(1)
00113   {
00114     if(DmaRecHalfBuffCplt == 1)
00115     {
00116       /* Store values on Play buff */
00117       for(i = 0; i < 1024; i++)
00118       {
00119         PlayBuff[2*i]     = SaturaLH((RecBuff[i] >> 8), -32768, 32767);
00120         PlayBuff[(2*i)+1] = PlayBuff[2*i];
00121       }
00122       if(PlaybackStarted == 0)
00123       {
00124         if(0 != audio_drv->Play(AUDIO_I2C_ADDRESS, (uint16_t *) &PlayBuff[0], 4096))
00125         {
00126           Error_Handler();
00127         }
00128         if(HAL_OK != HAL_SAI_Transmit_DMA(&SaiHandle, (uint8_t *) &PlayBuff[0], 4096))
00129         {
00130           Error_Handler();
00131         }
00132         PlaybackStarted = 1;
00133       }      
00134       DmaRecHalfBuffCplt  = 0;
00135     }
00136     if(DmaRecBuffCplt == 1)
00137     {
00138       /* Store values on Play buff */
00139       for(i = 1024; i < 2048; i++)
00140       {
00141         PlayBuff[2*i]     = SaturaLH((RecBuff[i] >> 8), -32768, 32767);
00142         PlayBuff[(2*i)+1] = PlayBuff[2*i];
00143       }
00144       DmaRecBuffCplt  = 0;
00145     }
00146   }
00147 }
00148 
00149 /**
00150   * @brief  System Clock Configuration
00151   *         The system Clock is configured as follows :
00152   *            System Clock source            = PLL (MSI)
00153   *            SYSCLK(Hz)                     = 80000000
00154   *            HCLK(Hz)                       = 80000000
00155   *            AHB Prescaler                  = 1
00156   *            APB1 Prescaler                 = 1
00157   *            APB2 Prescaler                 = 1
00158   *            MSI Frequency(Hz)              = 4000000
00159   *            PLL_M                          = 1
00160   *            PLL_N                          = 40
00161   *            PLL_R                          = 2
00162   *            PLL_P                          = 7
00163   *            PLL_Q                          = 4
00164   *            Flash Latency(WS)              = 4
00165   * @param  None
00166   * @retval None
00167   */
00168 void SystemClock_Config(void)
00169 {
00170   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
00171   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
00172 
00173   /* MSI is enabled after System reset, activate PLL with MSI as source */
00174   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
00175   RCC_OscInitStruct.MSIState = RCC_MSI_ON;
00176   RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
00177   RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
00178   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
00179   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
00180   RCC_OscInitStruct.PLL.PLLM = 1;
00181   RCC_OscInitStruct.PLL.PLLN = 40;
00182   RCC_OscInitStruct.PLL.PLLR = 2;
00183   RCC_OscInitStruct.PLL.PLLP = 7;
00184   RCC_OscInitStruct.PLL.PLLQ = 4;
00185   if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
00186   {
00187     /* Initialization Error */
00188     while(1);
00189   }
00190   
00191   /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 
00192      clocks dividers */
00193   RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
00194   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
00195   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
00196   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;  
00197   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;  
00198   if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
00199   {
00200     /* Initialization Error */
00201     while(1);
00202   }
00203 }
00204 
00205 /**
00206   * @brief  DFSDM channels and filter initialization
00207   * @param  None
00208   * @retval None
00209   */
00210 static void DFSDM_Init(void)
00211 {
00212   /* Initialize channel 2 */
00213   __HAL_DFSDM_CHANNEL_RESET_HANDLE_STATE(&DfsdmChannelHandle);
00214   DfsdmChannelHandle.Instance                      = DFSDM_Channel2;
00215   DfsdmChannelHandle.Init.OutputClock.Activation   = ENABLE;
00216   DfsdmChannelHandle.Init.OutputClock.Selection    = DFSDM_CHANNEL_OUTPUT_CLOCK_AUDIO;
00217   DfsdmChannelHandle.Init.OutputClock.Divider      = 4; /* 11.294MHz/4 = 2.82MHz */
00218   DfsdmChannelHandle.Init.Input.Multiplexer        = DFSDM_CHANNEL_EXTERNAL_INPUTS;
00219   DfsdmChannelHandle.Init.Input.DataPacking        = DFSDM_CHANNEL_STANDARD_MODE; /* N.U. */
00220   DfsdmChannelHandle.Init.Input.Pins               = DFSDM_CHANNEL_SAME_CHANNEL_PINS;
00221   DfsdmChannelHandle.Init.SerialInterface.Type     = DFSDM_CHANNEL_SPI_RISING;
00222   DfsdmChannelHandle.Init.SerialInterface.SpiClock = DFSDM_CHANNEL_SPI_CLOCK_INTERNAL;
00223   DfsdmChannelHandle.Init.Awd.FilterOrder          = DFSDM_CHANNEL_FASTSINC_ORDER; /* N.U. */
00224   DfsdmChannelHandle.Init.Awd.Oversampling         = 10; /* N.U. */
00225   DfsdmChannelHandle.Init.Offset                   = 0;
00226   DfsdmChannelHandle.Init.RightBitShift            = 2;
00227   if(HAL_OK != HAL_DFSDM_ChannelInit(&DfsdmChannelHandle))
00228   {
00229     Error_Handler();
00230   }
00231 
00232   /* Initialize filter 0 */
00233   __HAL_DFSDM_FILTER_RESET_HANDLE_STATE(&DfsdmFilterHandle);
00234   DfsdmFilterHandle.Instance                          = DFSDM_Filter0;
00235   DfsdmFilterHandle.Init.RegularParam.Trigger         = DFSDM_FILTER_SW_TRIGGER;
00236   DfsdmFilterHandle.Init.RegularParam.FastMode        = ENABLE;
00237   DfsdmFilterHandle.Init.RegularParam.DmaMode         = ENABLE;
00238   DfsdmFilterHandle.Init.InjectedParam.Trigger        = DFSDM_FILTER_SW_TRIGGER; /* N.U. */
00239   DfsdmFilterHandle.Init.InjectedParam.ScanMode       = ENABLE; /* N.U. */
00240   DfsdmFilterHandle.Init.InjectedParam.DmaMode        = DISABLE; /* N.U. */
00241   DfsdmFilterHandle.Init.InjectedParam.ExtTrigger     = DFSDM_FILTER_EXT_TRIG_TIM1_TRGO; /* N.U. */
00242   DfsdmFilterHandle.Init.InjectedParam.ExtTriggerEdge = DFSDM_FILTER_EXT_TRIG_RISING_EDGE; /* N.U. */
00243   DfsdmFilterHandle.Init.FilterParam.SincOrder        = DFSDM_FILTER_SINC3_ORDER;
00244   DfsdmFilterHandle.Init.FilterParam.Oversampling     = 64; /* 11.294MHz/(4*64) = 44.1KHz */
00245   DfsdmFilterHandle.Init.FilterParam.IntOversampling  = 1;
00246   if(HAL_OK != HAL_DFSDM_FilterInit(&DfsdmFilterHandle))
00247   {
00248     Error_Handler();
00249   }
00250 
00251   /* Configure regular channel and continuous mode for filter 0 */
00252   if(HAL_OK != HAL_DFSDM_FilterConfigRegChannel(&DfsdmFilterHandle, DFSDM_CHANNEL_2, DFSDM_CONTINUOUS_CONV_ON))
00253   {
00254     Error_Handler();
00255   }
00256 }
00257 
00258 /**
00259   * @brief  Playback initialization
00260   * @param  None
00261   * @retval None
00262   */
00263 static void Playback_Init(void)
00264 {
00265   /* Initialize SAI */
00266   __HAL_SAI_RESET_HANDLE_STATE(&SaiHandle);
00267 
00268   SaiHandle.Instance = SAI1_Block_A;
00269 
00270   SaiHandle.Init.AudioMode      = SAI_MODEMASTER_TX;
00271   SaiHandle.Init.Synchro        = SAI_ASYNCHRONOUS;
00272   SaiHandle.Init.SynchroExt     = SAI_SYNCEXT_DISABLE;
00273   SaiHandle.Init.OutputDrive    = SAI_OUTPUTDRIVE_ENABLE;
00274   SaiHandle.Init.NoDivider      = SAI_MASTERDIVIDER_ENABLE;
00275   SaiHandle.Init.FIFOThreshold  = SAI_FIFOTHRESHOLD_1QF;
00276   SaiHandle.Init.AudioFrequency = SAI_AUDIO_FREQUENCY_44K;
00277   SaiHandle.Init.Mckdiv         = 0; /* N.U */
00278   SaiHandle.Init.MonoStereoMode = SAI_STEREOMODE;
00279   SaiHandle.Init.CompandingMode = SAI_NOCOMPANDING;
00280   SaiHandle.Init.TriState       = SAI_OUTPUT_NOTRELEASED;
00281   SaiHandle.Init.Protocol       = SAI_FREE_PROTOCOL;
00282   SaiHandle.Init.DataSize       = SAI_DATASIZE_16;
00283   SaiHandle.Init.FirstBit       = SAI_FIRSTBIT_MSB;
00284   SaiHandle.Init.ClockStrobing  = SAI_CLOCKSTROBING_RISINGEDGE;
00285 
00286   SaiHandle.FrameInit.FrameLength       = 32; 
00287   SaiHandle.FrameInit.ActiveFrameLength = 16;
00288   SaiHandle.FrameInit.FSDefinition      = SAI_FS_CHANNEL_IDENTIFICATION;
00289   SaiHandle.FrameInit.FSPolarity        = SAI_FS_ACTIVE_LOW;
00290   SaiHandle.FrameInit.FSOffset          = SAI_FS_BEFOREFIRSTBIT;
00291 
00292   SaiHandle.SlotInit.FirstBitOffset = 0;
00293   SaiHandle.SlotInit.SlotSize       = SAI_SLOTSIZE_DATASIZE;
00294   SaiHandle.SlotInit.SlotNumber     = 2; 
00295   SaiHandle.SlotInit.SlotActive     = (SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_1);
00296 
00297   if(HAL_OK != HAL_SAI_Init(&SaiHandle))
00298   {
00299     Error_Handler();
00300   }
00301   
00302   /* Enable SAI to generate clock used by audio driver */
00303   __HAL_SAI_ENABLE(&SaiHandle);
00304   
00305   /* Initialize audio driver */
00306   if(CS43L22_ID != cs43l22_drv.ReadID(AUDIO_I2C_ADDRESS))
00307   {
00308     Error_Handler();
00309   }
00310   audio_drv = &cs43l22_drv;
00311   audio_drv->Reset(AUDIO_I2C_ADDRESS);  
00312   if(0 != audio_drv->Init(AUDIO_I2C_ADDRESS, OUTPUT_DEVICE_HEADPHONE, 90, AUDIO_FREQUENCY_44K))
00313   {
00314     Error_Handler();
00315   }
00316 }
00317 
00318 /**
00319   * @brief  This function is executed in case of error occurrence.
00320   * @param  None
00321   * @retval None
00322   */
00323 void Error_Handler(void)
00324 {
00325   while (1)
00326   {
00327     /* Toggle LED4 with a period of one second */
00328     BSP_LED_Toggle(LED4);
00329     HAL_Delay(1000);
00330   }
00331 }
00332 
00333 /**
00334   * @brief  Initializes the DFSDM channel MSP.
00335   * @param  hdfsdm_channel : DFSDM channel handle.
00336   * @retval None
00337   */
00338   
00339 
00340 void HAL_DFSDM_ChannelMspInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
00341 {
00342   /* Init of clock, gpio and PLLSAI1 clock */
00343   GPIO_InitTypeDef GPIO_Init;
00344   RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
00345   
00346   /* Enable DFSDM clock */
00347   __HAL_RCC_DFSDM_CLK_ENABLE();
00348   
00349   /* Configure PE9 for DFSDM_CKOUT and PE7 for DFSDM_DATIN2 */
00350   __HAL_RCC_GPIOE_CLK_ENABLE();
00351   GPIO_Init.Mode      = GPIO_MODE_AF_PP;
00352   GPIO_Init.Pull      = GPIO_PULLDOWN;
00353   GPIO_Init.Speed     = GPIO_SPEED_FREQ_VERY_HIGH;
00354   GPIO_Init.Alternate = GPIO_AF6_DFSDM;
00355   GPIO_Init.Pin = GPIO_PIN_9;
00356   HAL_GPIO_Init(GPIOE, &GPIO_Init);
00357   GPIO_Init.Pin = GPIO_PIN_7;
00358   HAL_GPIO_Init(GPIOE, &GPIO_Init);
00359   
00360   /* Configure and enable PLLSAI1 clock to generate 11.294MHz */
00361   RCC_PeriphCLKInitStruct.PeriphClockSelection    = RCC_PERIPHCLK_SAI1;
00362   RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1N        = 48;
00363   RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1P        = 17;
00364   RCC_PeriphCLKInitStruct.PLLSAI1.PLLSAI1ClockOut = RCC_PLLSAI1_SAI1CLK;
00365   RCC_PeriphCLKInitStruct.Sai1ClockSelection      = RCC_SAI1CLKSOURCE_PLLSAI1;
00366   if(HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct) != HAL_OK)
00367   {
00368     Error_Handler();
00369   }
00370 }
00371 
00372 /**
00373   * @brief  Initializes the DFSDM filter MSP.
00374   * @param  hdfsdm_filter : DFSDM filter handle.
00375   * @retval None
00376   */
00377 void HAL_DFSDM_FilterMspInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
00378 {
00379   /* Configure DMA1_Channel4 */
00380   __HAL_RCC_DMA1_CLK_ENABLE();
00381   hDfsdmDma.Init.Request             = DMA_REQUEST_0;
00382   hDfsdmDma.Init.Direction           = DMA_PERIPH_TO_MEMORY;
00383   hDfsdmDma.Init.PeriphInc           = DMA_PINC_DISABLE;
00384   hDfsdmDma.Init.MemInc              = DMA_MINC_ENABLE;
00385   hDfsdmDma.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
00386   hDfsdmDma.Init.MemDataAlignment    = DMA_MDATAALIGN_WORD;
00387   hDfsdmDma.Init.Mode                = DMA_CIRCULAR;
00388   hDfsdmDma.Init.Priority            = DMA_PRIORITY_HIGH;
00389   hDfsdmDma.Instance                 = DMA1_Channel4;
00390   __HAL_LINKDMA(hdfsdm_filter, hdmaReg, hDfsdmDma);
00391   if (HAL_OK != HAL_DMA_Init(&hDfsdmDma))
00392   {
00393     Error_Handler();
00394   }
00395   HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0x01, 0);
00396   HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn);
00397 }
00398 
00399 /**
00400   * @brief  SAI MSP Init.
00401   * @param  hsai : pointer to a SAI_HandleTypeDef structure that contains
00402   *                the configuration information for SAI module.
00403   * @retval None
00404   */
00405 void HAL_SAI_MspInit(SAI_HandleTypeDef *hsai)
00406 {
00407   GPIO_InitTypeDef  GPIO_Init;
00408   
00409   /* Enable SAI1 clock */
00410   __HAL_RCC_SAI1_CLK_ENABLE();
00411   
00412   /* Configure GPIOs used for SAI1 */
00413   __HAL_RCC_GPIOE_CLK_ENABLE();
00414   GPIO_Init.Mode      = GPIO_MODE_AF_PP;
00415   GPIO_Init.Pull      = GPIO_NOPULL;
00416   GPIO_Init.Speed     = GPIO_SPEED_FREQ_VERY_HIGH;
00417   GPIO_Init.Alternate = GPIO_AF13_SAI1;
00418   GPIO_Init.Pin       = (GPIO_PIN_2 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6);
00419   HAL_GPIO_Init(GPIOE, &GPIO_Init);
00420   
00421   /* Configure DMA used for SAI1 */
00422   __HAL_RCC_DMA2_CLK_ENABLE();
00423   hSaiDma.Init.Request             = DMA_REQUEST_1;
00424   hSaiDma.Init.Direction           = DMA_MEMORY_TO_PERIPH;
00425   hSaiDma.Init.PeriphInc           = DMA_PINC_DISABLE;
00426   hSaiDma.Init.MemInc              = DMA_MINC_ENABLE;
00427   hSaiDma.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
00428   hSaiDma.Init.MemDataAlignment    = DMA_MDATAALIGN_HALFWORD;
00429   hSaiDma.Init.Mode                = DMA_CIRCULAR;
00430   hSaiDma.Init.Priority            = DMA_PRIORITY_HIGH;
00431   hSaiDma.Instance                 = DMA2_Channel1;
00432   __HAL_LINKDMA(hsai, hdmatx, hSaiDma);
00433   if (HAL_OK != HAL_DMA_Init(&hSaiDma))
00434   {
00435     Error_Handler();
00436   }
00437   HAL_NVIC_SetPriority(DMA2_Channel1_IRQn, 0x01, 0);
00438   HAL_NVIC_EnableIRQ(DMA2_Channel1_IRQn);
00439 }
00440 
00441 /**
00442   * @brief  Half regular conversion complete callback. 
00443   * @param  hdfsdm_filter : DFSDM filter handle.
00444   * @retval None
00445   */
00446 void HAL_DFSDM_FilterRegConvHalfCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
00447 {
00448   DmaRecHalfBuffCplt = 1;
00449 }
00450 
00451 /**
00452   * @brief  Regular conversion complete callback. 
00453   * @note   In interrupt mode, user has to read conversion value in this function
00454             using HAL_DFSDM_FilterGetRegularValue.
00455   * @param  hdfsdm_filter : DFSDM filter handle.
00456   * @retval None
00457   */
00458 void HAL_DFSDM_FilterRegConvCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
00459 {
00460   DmaRecBuffCplt = 1;
00461 }
00462 
00463 #ifdef  USE_FULL_ASSERT
00464 /**
00465   * @brief  Reports the name of the source file and the source line number
00466   *         where the assert_param error has occurred.
00467   * @param  file: pointer to the source file name
00468   * @param  line: assert_param error line source number
00469   * @retval None
00470   */
00471 void assert_failed(uint8_t* file, uint32_t line)
00472 { 
00473   /* User can add his own implementation to report the file name and line number,
00474      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
00475 
00476   /* Infinite loop */
00477   while (1)
00478   {
00479   }
00480 }
00481 #endif
00482 
00483 /**
00484   * @}
00485   */
00486 
00487 /**
00488   * @}
00489   */
00490 
00491 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
00492