Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_crc.c @ 528:a9c195be907e
Added new option to gas configuration: "Off":
Added functionality needed to handle the new state
author | Ideenmodellierer |
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date | Sun, 13 Sep 2020 20:59:38 +0200 |
parents | c78bcbd5deda |
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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>© 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 |