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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_crc.c @ 276:8e9c502c0b06 IPC_Sync_Improvment_3

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Rework pressure/ temperature data aquisition The data data provided by the I2C data had been used for calculation independend if transmission was successfull or not => state evaluation added In the previous version data with resolution 0.5mBar and temperature was requested per cycle inparallel. This has been replaced by a requested resolution of 1mBar and an alternating aquisition (pressure / temp update every 200ms instead every 100ms) => reducing busy wait time and power consumption
author ideenmodellierer
date Sun, 28 Apr 2019 10:06:27 +0200
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_ll_crc.c
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4 * @author MCD Application Team
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5 * @brief CRC LL module driver.
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6 ******************************************************************************
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7 * @attention
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8 *
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9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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10 *
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11 * Redistribution and use in source and binary forms, with or without modification,
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12 * are permitted provided that the following conditions are met:
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13 * 1. Redistributions of source code must retain the above copyright notice,
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14 * this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 * this list of conditions and the following disclaimer in the documentation
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17 * and/or other materials provided with the distribution.
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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19 * may be used to endorse or promote products derived from this software
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20 * without specific prior written permission.
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21 *
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
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33 ******************************************************************************
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34 */
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35 #if defined(USE_FULL_LL_DRIVER)
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36
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37 /* Includes ------------------------------------------------------------------*/
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38 #include "stm32f4xx_ll_crc.h"
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39 #include "stm32f4xx_ll_bus.h"
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40
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41 #ifdef USE_FULL_ASSERT
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42 #include "stm32_assert.h"
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43 #else
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44 #define assert_param(expr) ((void)0U)
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45 #endif
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46
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47 /** @addtogroup STM32F4xx_LL_Driver
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48 * @{
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49 */
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50
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51 #if defined (CRC)
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52
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53 /** @addtogroup CRC_LL
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54 * @{
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55 */
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56
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57 /* Private types -------------------------------------------------------------*/
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58 /* Private variables ---------------------------------------------------------*/
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59 /* Private constants ---------------------------------------------------------*/
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60 /* Private macros ------------------------------------------------------------*/
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61 /* Private function prototypes -----------------------------------------------*/
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62
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63 /* Exported functions --------------------------------------------------------*/
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64 /** @addtogroup CRC_LL_Exported_Functions
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65 * @{
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66 */
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67
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68 /** @addtogroup CRC_LL_EF_Init
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69 * @{
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70 */
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71
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72 /**
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73 * @brief De-initialize CRC registers (Registers restored to their default values).
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74 * @param CRCx CRC Instance
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75 * @retval An ErrorStatus enumeration value:
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76 * - SUCCESS: CRC registers are de-initialized
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77 * - ERROR: CRC registers are not de-initialized
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78 */
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79 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx)
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80 {
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81 ErrorStatus status = SUCCESS;
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82
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83 /* Check the parameters */
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84 assert_param(IS_CRC_ALL_INSTANCE(CRCx));
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85
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86 if (CRCx == CRC)
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87 {
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88 /* Force CRC reset */
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89 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_CRC);
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90
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91 /* Release CRC reset */
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92 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_CRC);
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93 }
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94 else
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95 {
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96 status = ERROR;
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97 }
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98
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99 return (status);
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100 }
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101
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102 /**
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103 * @}
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104 */
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105
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106 /**
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107 * @}
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108 */
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109
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110 /**
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111 * @}
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112 */
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113
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114 #endif /* defined (CRC) */
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115
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116 /**
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117 * @}
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118 */
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119
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120 #endif /* USE_FULL_LL_DRIVER */
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121
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122 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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123