Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dac.c @ 240:625d20070261 div-fixes-5
Improvement SPI stability/recoverability
The core part of this commit comes from careful code reading. The core is the
swap of Scheduler_Request_sync_with_SPI(SPI_SYNC_METHOD_SOFT) and
SPI_Start_single_TxRx_with_Master(). This code is sitting in an if-clause
that is triggered on SPI comms failure. Instead of blindly trying to
communicate again (which will very likely fail again), first try to reset
the comms link, and then try to communicate again. That simply makes
more sense in this case.
This is heavily tested, on 2 simple dives, and 5 very long deco schedules
from the simulator (10+ hour deco's), and a lot of small simulated dives
(upto 2h runtime). Of all these tests, only one long session failed after
9 out of 11h runtime. Analyzing that one failure, suggests that the
RTE is looping in some error handler, which (obviously) results in
a SPI comms failure as a result. I consider this not part of this change.
Additionally, some more cleanup is done in this code.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
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date | Mon, 08 Apr 2019 11:49:13 +0200 |
parents | c78bcbd5deda |
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rev | line source |
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128
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_ll_dac.c |
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4 * @author MCD Application Team |
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5 * @brief DAC 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_dac.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(DAC) |
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52 |
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53 /** @addtogroup DAC_LL DAC |
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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 |
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62 /** @addtogroup DAC_LL_Private_Macros |
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63 * @{ |
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64 */ |
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65 |
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66 #if defined(DAC_CHANNEL2_SUPPORT) |
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67 #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \ |
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68 ( \ |
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69 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \ |
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70 || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \ |
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71 ) |
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72 #else |
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73 #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \ |
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74 ( \ |
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75 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \ |
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76 ) |
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77 #endif /* DAC_CHANNEL2_SUPPORT */ |
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78 |
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79 #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \ |
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80 ( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \ |
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81 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \ |
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82 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \ |
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83 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \ |
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84 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \ |
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85 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \ |
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86 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \ |
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87 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \ |
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88 ) |
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89 |
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90 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \ |
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91 ( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \ |
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92 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \ |
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93 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \ |
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94 ) |
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95 |
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96 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_CONFIG__) \ |
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97 ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \ |
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98 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \ |
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99 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \ |
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100 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \ |
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101 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \ |
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102 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \ |
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103 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \ |
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104 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \ |
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105 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \ |
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106 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \ |
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107 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \ |
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108 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0) \ |
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109 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \ |
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110 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \ |
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111 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \ |
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112 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \ |
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113 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \ |
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114 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \ |
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115 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \ |
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116 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \ |
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117 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \ |
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118 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \ |
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119 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \ |
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120 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095) \ |
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121 ) |
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122 |
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123 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \ |
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124 ( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \ |
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125 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \ |
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126 ) |
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127 |
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128 /** |
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129 * @} |
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130 */ |
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131 |
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132 |
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133 /* Private function prototypes -----------------------------------------------*/ |
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134 |
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135 /* Exported functions --------------------------------------------------------*/ |
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136 /** @addtogroup DAC_LL_Exported_Functions |
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137 * @{ |
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138 */ |
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139 |
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140 /** @addtogroup DAC_LL_EF_Init |
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141 * @{ |
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142 */ |
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143 |
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144 /** |
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145 * @brief De-initialize registers of the selected DAC instance |
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146 * to their default reset values. |
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147 * @param DACx DAC instance |
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148 * @retval An ErrorStatus enumeration value: |
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149 * - SUCCESS: DAC registers are de-initialized |
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150 * - ERROR: not applicable |
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151 */ |
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152 ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx) |
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153 { |
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154 /* Check the parameters */ |
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155 assert_param(IS_DAC_ALL_INSTANCE(DACx)); |
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156 |
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157 /* Force reset of DAC1 clock */ |
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158 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1); |
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159 |
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160 /* Release reset of DAC1 clock */ |
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161 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1); |
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162 return SUCCESS; |
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163 } |
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164 |
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165 /** |
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166 * @brief Initialize some features of DAC instance. |
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167 * @note The setting of these parameters by function @ref LL_DAC_Init() |
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168 * is conditioned to DAC state: |
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169 * DAC instance must be disabled. |
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170 * @param DACx DAC instance |
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171 * @param DAC_Channel This parameter can be one of the following values: |
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172 * @arg @ref LL_DAC_CHANNEL_1 |
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173 * @arg @ref LL_DAC_CHANNEL_2 (1) |
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174 * |
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175 * (1) On this STM32 serie, parameter not available on all devices. |
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176 * Refer to device datasheet for channels availability. |
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177 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure |
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178 * @retval An ErrorStatus enumeration value: |
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179 * - SUCCESS: DAC registers are initialized |
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180 * - ERROR: DAC registers are not initialized |
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181 */ |
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182 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct) |
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183 { |
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184 ErrorStatus status = SUCCESS; |
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185 |
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186 /* Check the parameters */ |
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187 assert_param(IS_DAC_ALL_INSTANCE(DACx)); |
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188 assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel)); |
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189 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource)); |
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190 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer)); |
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191 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration)); |
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192 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE) |
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193 { |
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194 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGenerationConfig)); |
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195 } |
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196 |
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197 /* Note: Hardware constraint (refer to description of this function) */ |
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198 /* DAC instance must be disabled. */ |
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199 if(LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U) |
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200 { |
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201 /* Configuration of DAC channel: */ |
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202 /* - TriggerSource */ |
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203 /* - WaveAutoGeneration */ |
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204 /* - OutputBuffer */ |
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205 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE) |
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206 { |
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207 MODIFY_REG(DACx->CR, |
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208 ( DAC_CR_TSEL1 |
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209 | DAC_CR_WAVE1 |
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210 | DAC_CR_MAMP1 |
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211 | DAC_CR_BOFF1 |
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212 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) |
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213 , |
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214 ( DAC_InitStruct->TriggerSource |
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215 | DAC_InitStruct->WaveAutoGeneration |
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216 | DAC_InitStruct->WaveAutoGenerationConfig |
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217 | DAC_InitStruct->OutputBuffer |
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218 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) |
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219 ); |
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220 } |
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221 else |
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222 { |
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223 MODIFY_REG(DACx->CR, |
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224 ( DAC_CR_TSEL1 |
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225 | DAC_CR_WAVE1 |
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226 | DAC_CR_BOFF1 |
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227 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) |
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228 , |
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229 ( DAC_InitStruct->TriggerSource |
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230 | LL_DAC_WAVE_AUTO_GENERATION_NONE |
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231 | DAC_InitStruct->OutputBuffer |
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232 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) |
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233 ); |
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234 } |
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235 } |
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236 else |
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237 { |
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238 /* Initialization error: DAC instance is not disabled. */ |
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239 status = ERROR; |
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240 } |
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241 return status; |
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242 } |
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243 |
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244 /** |
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245 * @brief Set each @ref LL_DAC_InitTypeDef field to default value. |
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246 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure |
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247 * whose fields will be set to default values. |
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248 * @retval None |
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249 */ |
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250 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct) |
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251 { |
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252 /* Set DAC_InitStruct fields to default values */ |
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253 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE; |
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254 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE; |
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255 /* Note: Parameter discarded if wave auto generation is disabled, */ |
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256 /* set anyway to its default value. */ |
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257 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0; |
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258 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE; |
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259 } |
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260 |
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261 /** |
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262 * @} |
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263 */ |
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264 |
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265 /** |
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266 * @} |
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267 */ |
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268 |
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269 /** |
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270 * @} |
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271 */ |
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272 |
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273 #endif /* DAC */ |
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274 |
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275 /** |
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276 * @} |
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277 */ |
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278 |
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279 #endif /* USE_FULL_LL_DRIVER */ |
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280 |
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281 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |