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Forward 100ms time stamp to RTE and handle logbook in main loop Because of code execution variance between 100ms cycle event and start of SPI communication, the synchronization between Main and RTE may shift. To avoid these shifts the time stamp of the 100ms event is forwarded to the RTE which is now able to adapt to small variations. One variation point was the storage of dive samples within the external flash. Taking a closer look how this function works, moving it from the timer callback to the main loop should not be an issue. A critical point of having the function in the timer call back was the sector clean function which is called (depending on dive data) every ~300minutes and may take 250ms - 1500ms.
author ideenmodellierer
date Sun, 14 Apr 2019 11:38:14 +0200
parents c78bcbd5deda
children
line wrap: on
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/**
  ******************************************************************************
  * @file    stm32f4xx_ll_dac.c
  * @author  MCD Application Team
  * @brief   DAC LL module driver
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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.
  *
  ******************************************************************************
  */
#if defined(USE_FULL_LL_DRIVER)

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_dac.h"
#include "stm32f4xx_ll_bus.h"

#ifdef USE_FULL_ASSERT
  #include "stm32_assert.h"
#else
  #define assert_param(expr) ((void)0U)
#endif

/** @addtogroup STM32F4xx_LL_Driver
  * @{
  */

#if defined(DAC)

/** @addtogroup DAC_LL DAC
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/

/** @addtogroup DAC_LL_Private_Macros
  * @{
  */

#if defined(DAC_CHANNEL2_SUPPORT)
#define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__)                           \
  (                                                                            \
      ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1)                                  \
   || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2)                                  \
  )
#else
#define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__)                           \
  (                                                                            \
   ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1)                                     \
  )
#endif /* DAC_CHANNEL2_SUPPORT */

#define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__)                           \
  (   ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE)                           \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO)                      \
   || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9)                     \
  )

#define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__)           \
  (   ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE)     \
   || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE)    \
   || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
  )

#define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_CONFIG__)      \
  (   ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0)     \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0)  \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0) \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1)       \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3)       \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7)       \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15)      \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31)      \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63)      \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127)     \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255)     \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511)     \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023)    \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047)    \
   || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)    \
  )

#define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__)                             \
  (   ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE)                     \
   || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE)                    \
  )

/**
  * @}
  */


/* Private function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/
/** @addtogroup DAC_LL_Exported_Functions
  * @{
  */

/** @addtogroup DAC_LL_EF_Init
  * @{
  */

/**
  * @brief  De-initialize registers of the selected DAC instance
  *         to their default reset values.
  * @param  DACx DAC instance
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: DAC registers are de-initialized
  *          - ERROR: not applicable
  */
ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
{
  /* Check the parameters */
  assert_param(IS_DAC_ALL_INSTANCE(DACx));
  
  /* Force reset of DAC1 clock */
  LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
  
  /* Release reset of DAC1 clock */
  LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
  return SUCCESS;
}

/**
  * @brief  Initialize some features of DAC instance.
  * @note   The setting of these parameters by function @ref LL_DAC_Init()
  *         is conditioned to DAC state:
  *         DAC instance must be disabled.
  * @param  DACx DAC instance
  * @param  DAC_Channel This parameter can be one of the following values:
  *         @arg @ref LL_DAC_CHANNEL_1
  *         @arg @ref LL_DAC_CHANNEL_2 (1)
  *         
  *         (1) On this STM32 serie, parameter not available on all devices.
  *             Refer to device datasheet for channels availability.
  * @param  DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: DAC registers are initialized
  *          - ERROR: DAC registers are not initialized
  */
ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
{
  ErrorStatus status = SUCCESS;
  
  /* Check the parameters */
  assert_param(IS_DAC_ALL_INSTANCE(DACx));
  assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel));
  assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
  assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
  assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
  if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
  {
    assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGenerationConfig));
  }
  
  /* Note: Hardware constraint (refer to description of this function)        */
  /*       DAC instance must be disabled.                                     */
  if(LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U)
  {
    /* Configuration of DAC channel:                                          */
    /*  - TriggerSource                                                       */
    /*  - WaveAutoGeneration                                                  */
    /*  - OutputBuffer                                                        */
    if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
    {
      MODIFY_REG(DACx->CR,
                 (  DAC_CR_TSEL1
                  | DAC_CR_WAVE1
                  | DAC_CR_MAMP1
                  | DAC_CR_BOFF1
                 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                ,
                 (  DAC_InitStruct->TriggerSource
                  | DAC_InitStruct->WaveAutoGeneration
                  | DAC_InitStruct->WaveAutoGenerationConfig
                  | DAC_InitStruct->OutputBuffer
                 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                );
    }
    else
    {
      MODIFY_REG(DACx->CR,
                 (  DAC_CR_TSEL1
                  | DAC_CR_WAVE1
                  | DAC_CR_BOFF1
                 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                ,
                 (  DAC_InitStruct->TriggerSource
                  | LL_DAC_WAVE_AUTO_GENERATION_NONE
                  | DAC_InitStruct->OutputBuffer
                 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                );
    }
  }
  else
  {
    /* Initialization error: DAC instance is not disabled.                    */
    status = ERROR;
  }
  return status;
}

/**
  * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
  * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
  *                       whose fields will be set to default values.
  * @retval None
  */
void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
{
  /* Set DAC_InitStruct fields to default values */
  DAC_InitStruct->TriggerSource            = LL_DAC_TRIG_SOFTWARE;
  DAC_InitStruct->WaveAutoGeneration       = LL_DAC_WAVE_AUTO_GENERATION_NONE;
  /* Note: Parameter discarded if wave auto generation is disabled,           */
  /*       set anyway to its default value.                                   */
  DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
  DAC_InitStruct->OutputBuffer             = LL_DAC_OUTPUT_BUFFER_ENABLE;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* DAC */

/**
  * @}
  */

#endif /* USE_FULL_LL_DRIVER */

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