annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_utils.c @ 488:9eeab3fead8f

Added "I2C_DeInit();" in hardware detection routines. It's the recommended way to do and solves potential issues with older OSTC4 hardware generations. Increased RTE and RTE required numbers updated "Current build"
author heinrichsweikamp
date Sat, 27 Jun 2020 18:40:32 +0200
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_ll_utils.c
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4 * @author MCD Application Team
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5 * @brief UTILS 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 /* Includes ------------------------------------------------------------------*/
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36 #include "stm32f4xx_ll_utils.h"
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37 #include "stm32f4xx_ll_rcc.h"
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38 #include "stm32f4xx_ll_system.h"
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39 #include "stm32f4xx_ll_pwr.h"
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40 #ifdef USE_FULL_ASSERT
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41 #include "stm32_assert.h"
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42 #else
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43 #define assert_param(expr) ((void)0U)
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44 #endif /* USE_FULL_ASSERT */
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45
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46 /** @addtogroup STM32F4xx_LL_Driver
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47 * @{
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48 */
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49
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50 /** @addtogroup UTILS_LL
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51 * @{
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52 */
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53
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54 /* Private types -------------------------------------------------------------*/
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55 /* Private variables ---------------------------------------------------------*/
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56 /* Private constants ---------------------------------------------------------*/
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57 /** @addtogroup UTILS_LL_Private_Constants
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58 * @{
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59 */
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60 #if defined(RCC_MAX_FREQUENCY_SCALE1)
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61 #define UTILS_MAX_FREQUENCY_SCALE1 RCC_MAX_FREQUENCY /*!< Maximum frequency for system clock at power scale1, in Hz */
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62 #endif /*RCC_MAX_FREQUENCY_SCALE1 */
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63 #define UTILS_MAX_FREQUENCY_SCALE2 RCC_MAX_FREQUENCY_SCALE2 /*!< Maximum frequency for system clock at power scale2, in Hz */
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64 #if defined(RCC_MAX_FREQUENCY_SCALE3)
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65 #define UTILS_MAX_FREQUENCY_SCALE3 RCC_MAX_FREQUENCY_SCALE3 /*!< Maximum frequency for system clock at power scale3, in Hz */
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66 #endif /* MAX_FREQUENCY_SCALE3 */
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67
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68 /* Defines used for PLL range */
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69 #define UTILS_PLLVCO_INPUT_MIN RCC_PLLVCO_INPUT_MIN /*!< Frequency min for PLLVCO input, in Hz */
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70 #define UTILS_PLLVCO_INPUT_MAX RCC_PLLVCO_INPUT_MAX /*!< Frequency max for PLLVCO input, in Hz */
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71 #define UTILS_PLLVCO_OUTPUT_MIN RCC_PLLVCO_OUTPUT_MIN /*!< Frequency min for PLLVCO output, in Hz */
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72 #define UTILS_PLLVCO_OUTPUT_MAX RCC_PLLVCO_OUTPUT_MAX /*!< Frequency max for PLLVCO output, in Hz */
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73
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74 /* Defines used for HSE range */
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75 #define UTILS_HSE_FREQUENCY_MIN 4000000U /*!< Frequency min for HSE frequency, in Hz */
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76 #define UTILS_HSE_FREQUENCY_MAX 26000000U /*!< Frequency max for HSE frequency, in Hz */
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77
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78 /* Defines used for FLASH latency according to HCLK Frequency */
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79 #if defined(FLASH_SCALE1_LATENCY1_FREQ)
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80 #define UTILS_SCALE1_LATENCY1_FREQ FLASH_SCALE1_LATENCY1_FREQ /*!< HCLK frequency to set FLASH latency 1 in power scale 1 */
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81 #endif
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82 #if defined(FLASH_SCALE1_LATENCY2_FREQ)
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83 #define UTILS_SCALE1_LATENCY2_FREQ FLASH_SCALE1_LATENCY2_FREQ /*!< HCLK frequency to set FLASH latency 2 in power scale 1 */
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84 #endif
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85 #if defined(FLASH_SCALE1_LATENCY3_FREQ)
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86 #define UTILS_SCALE1_LATENCY3_FREQ FLASH_SCALE1_LATENCY3_FREQ /*!< HCLK frequency to set FLASH latency 3 in power scale 1 */
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87 #endif
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88 #if defined(FLASH_SCALE1_LATENCY4_FREQ)
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89 #define UTILS_SCALE1_LATENCY4_FREQ FLASH_SCALE1_LATENCY4_FREQ /*!< HCLK frequency to set FLASH latency 4 in power scale 1 */
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90 #endif
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91 #if defined(FLASH_SCALE1_LATENCY5_FREQ)
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92 #define UTILS_SCALE1_LATENCY5_FREQ FLASH_SCALE1_LATENCY5_FREQ /*!< HCLK frequency to set FLASH latency 5 in power scale 1 */
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93 #endif
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94 #define UTILS_SCALE2_LATENCY1_FREQ FLASH_SCALE2_LATENCY1_FREQ /*!< HCLK frequency to set FLASH latency 1 in power scale 2 */
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95 #define UTILS_SCALE2_LATENCY2_FREQ FLASH_SCALE2_LATENCY2_FREQ /*!< HCLK frequency to set FLASH latency 2 in power scale 2 */
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96 #if defined(FLASH_SCALE2_LATENCY3_FREQ)
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97 #define UTILS_SCALE2_LATENCY3_FREQ FLASH_SCALE2_LATENCY3_FREQ /*!< HCLK frequency to set FLASH latency 2 in power scale 2 */
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98 #endif
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99 #if defined(FLASH_SCALE2_LATENCY4_FREQ)
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100 #define UTILS_SCALE2_LATENCY4_FREQ FLASH_SCALE2_LATENCY4_FREQ /*!< HCLK frequency to set FLASH latency 4 in power scale 2 */
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101 #endif
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102 #if defined(FLASH_SCALE2_LATENCY5_FREQ)
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103 #define UTILS_SCALE2_LATENCY5_FREQ FLASH_SCALE2_LATENCY5_FREQ /*!< HCLK frequency to set FLASH latency 5 in power scale 2 */
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104 #endif
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105 #if defined(FLASH_SCALE3_LATENCY1_FREQ)
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106 #define UTILS_SCALE3_LATENCY1_FREQ FLASH_SCALE3_LATENCY1_FREQ /*!< HCLK frequency to set FLASH latency 1 in power scale 3 */
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107 #endif
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108 #if defined(FLASH_SCALE3_LATENCY2_FREQ)
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109 #define UTILS_SCALE3_LATENCY2_FREQ FLASH_SCALE3_LATENCY2_FREQ /*!< HCLK frequency to set FLASH latency 2 in power scale 3 */
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110 #endif
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111 #if defined(FLASH_SCALE3_LATENCY3_FREQ)
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112 #define UTILS_SCALE3_LATENCY3_FREQ FLASH_SCALE3_LATENCY3_FREQ /*!< HCLK frequency to set FLASH latency 3 in power scale 3 */
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113 #endif
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114 #if defined(FLASH_SCALE3_LATENCY4_FREQ)
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115 #define UTILS_SCALE3_LATENCY4_FREQ FLASH_SCALE3_LATENCY4_FREQ /*!< HCLK frequency to set FLASH latency 4 in power scale 3 */
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116 #endif
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117 #if defined(FLASH_SCALE3_LATENCY5_FREQ)
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118 #define UTILS_SCALE3_LATENCY5_FREQ FLASH_SCALE3_LATENCY5_FREQ /*!< HCLK frequency to set FLASH latency 5 in power scale 3 */
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119 #endif
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120 /**
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121 * @}
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122 */
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123
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124 /* Private macros ------------------------------------------------------------*/
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125 /** @addtogroup UTILS_LL_Private_Macros
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126 * @{
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127 */
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128 #define IS_LL_UTILS_SYSCLK_DIV(__VALUE__) (((__VALUE__) == LL_RCC_SYSCLK_DIV_1) \
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129 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_2) \
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130 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_4) \
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131 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_8) \
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132 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_16) \
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133 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_64) \
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134 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_128) \
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135 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_256) \
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136 || ((__VALUE__) == LL_RCC_SYSCLK_DIV_512))
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137
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138 #define IS_LL_UTILS_APB1_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB1_DIV_1) \
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139 || ((__VALUE__) == LL_RCC_APB1_DIV_2) \
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140 || ((__VALUE__) == LL_RCC_APB1_DIV_4) \
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141 || ((__VALUE__) == LL_RCC_APB1_DIV_8) \
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142 || ((__VALUE__) == LL_RCC_APB1_DIV_16))
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143
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144 #define IS_LL_UTILS_APB2_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB2_DIV_1) \
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145 || ((__VALUE__) == LL_RCC_APB2_DIV_2) \
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146 || ((__VALUE__) == LL_RCC_APB2_DIV_4) \
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147 || ((__VALUE__) == LL_RCC_APB2_DIV_8) \
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148 || ((__VALUE__) == LL_RCC_APB2_DIV_16))
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149
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150 #define IS_LL_UTILS_PLLM_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PLLM_DIV_2) \
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151 || ((__VALUE__) == LL_RCC_PLLM_DIV_3) \
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152 || ((__VALUE__) == LL_RCC_PLLM_DIV_4) \
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153 || ((__VALUE__) == LL_RCC_PLLM_DIV_5) \
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154 || ((__VALUE__) == LL_RCC_PLLM_DIV_6) \
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155 || ((__VALUE__) == LL_RCC_PLLM_DIV_7) \
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156 || ((__VALUE__) == LL_RCC_PLLM_DIV_8) \
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157 || ((__VALUE__) == LL_RCC_PLLM_DIV_9) \
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158 || ((__VALUE__) == LL_RCC_PLLM_DIV_10) \
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159 || ((__VALUE__) == LL_RCC_PLLM_DIV_11) \
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160 || ((__VALUE__) == LL_RCC_PLLM_DIV_12) \
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161 || ((__VALUE__) == LL_RCC_PLLM_DIV_13) \
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162 || ((__VALUE__) == LL_RCC_PLLM_DIV_14) \
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163 || ((__VALUE__) == LL_RCC_PLLM_DIV_15) \
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164 || ((__VALUE__) == LL_RCC_PLLM_DIV_16) \
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165 || ((__VALUE__) == LL_RCC_PLLM_DIV_17) \
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166 || ((__VALUE__) == LL_RCC_PLLM_DIV_18) \
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167 || ((__VALUE__) == LL_RCC_PLLM_DIV_19) \
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168 || ((__VALUE__) == LL_RCC_PLLM_DIV_20) \
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169 || ((__VALUE__) == LL_RCC_PLLM_DIV_21) \
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170 || ((__VALUE__) == LL_RCC_PLLM_DIV_22) \
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171 || ((__VALUE__) == LL_RCC_PLLM_DIV_23) \
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172 || ((__VALUE__) == LL_RCC_PLLM_DIV_24) \
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173 || ((__VALUE__) == LL_RCC_PLLM_DIV_25) \
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174 || ((__VALUE__) == LL_RCC_PLLM_DIV_26) \
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175 || ((__VALUE__) == LL_RCC_PLLM_DIV_27) \
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176 || ((__VALUE__) == LL_RCC_PLLM_DIV_28) \
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177 || ((__VALUE__) == LL_RCC_PLLM_DIV_29) \
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178 || ((__VALUE__) == LL_RCC_PLLM_DIV_30) \
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179 || ((__VALUE__) == LL_RCC_PLLM_DIV_31) \
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180 || ((__VALUE__) == LL_RCC_PLLM_DIV_32) \
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181 || ((__VALUE__) == LL_RCC_PLLM_DIV_33) \
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182 || ((__VALUE__) == LL_RCC_PLLM_DIV_34) \
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183 || ((__VALUE__) == LL_RCC_PLLM_DIV_35) \
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184 || ((__VALUE__) == LL_RCC_PLLM_DIV_36) \
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185 || ((__VALUE__) == LL_RCC_PLLM_DIV_37) \
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186 || ((__VALUE__) == LL_RCC_PLLM_DIV_38) \
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187 || ((__VALUE__) == LL_RCC_PLLM_DIV_39) \
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188 || ((__VALUE__) == LL_RCC_PLLM_DIV_40) \
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189 || ((__VALUE__) == LL_RCC_PLLM_DIV_41) \
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190 || ((__VALUE__) == LL_RCC_PLLM_DIV_42) \
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191 || ((__VALUE__) == LL_RCC_PLLM_DIV_43) \
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192 || ((__VALUE__) == LL_RCC_PLLM_DIV_44) \
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193 || ((__VALUE__) == LL_RCC_PLLM_DIV_45) \
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194 || ((__VALUE__) == LL_RCC_PLLM_DIV_46) \
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195 || ((__VALUE__) == LL_RCC_PLLM_DIV_47) \
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196 || ((__VALUE__) == LL_RCC_PLLM_DIV_48) \
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197 || ((__VALUE__) == LL_RCC_PLLM_DIV_49) \
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198 || ((__VALUE__) == LL_RCC_PLLM_DIV_50) \
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199 || ((__VALUE__) == LL_RCC_PLLM_DIV_51) \
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200 || ((__VALUE__) == LL_RCC_PLLM_DIV_52) \
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201 || ((__VALUE__) == LL_RCC_PLLM_DIV_53) \
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202 || ((__VALUE__) == LL_RCC_PLLM_DIV_54) \
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203 || ((__VALUE__) == LL_RCC_PLLM_DIV_55) \
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204 || ((__VALUE__) == LL_RCC_PLLM_DIV_56) \
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205 || ((__VALUE__) == LL_RCC_PLLM_DIV_57) \
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206 || ((__VALUE__) == LL_RCC_PLLM_DIV_58) \
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207 || ((__VALUE__) == LL_RCC_PLLM_DIV_59) \
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208 || ((__VALUE__) == LL_RCC_PLLM_DIV_60) \
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209 || ((__VALUE__) == LL_RCC_PLLM_DIV_61) \
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210 || ((__VALUE__) == LL_RCC_PLLM_DIV_62) \
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211 || ((__VALUE__) == LL_RCC_PLLM_DIV_63))
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212
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213 #define IS_LL_UTILS_PLLN_VALUE(__VALUE__) ((RCC_PLLN_MIN_VALUE <= (__VALUE__)) && ((__VALUE__) <= RCC_PLLN_MAX_VALUE))
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214
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215 #define IS_LL_UTILS_PLLP_VALUE(__VALUE__) (((__VALUE__) == LL_RCC_PLLP_DIV_2) \
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216 || ((__VALUE__) == LL_RCC_PLLP_DIV_4) \
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217 || ((__VALUE__) == LL_RCC_PLLP_DIV_6) \
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218 || ((__VALUE__) == LL_RCC_PLLP_DIV_8))
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219
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220 #define IS_LL_UTILS_PLLVCO_INPUT(__VALUE__) ((UTILS_PLLVCO_INPUT_MIN <= (__VALUE__)) && ((__VALUE__) <= UTILS_PLLVCO_INPUT_MAX))
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221
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222 #define IS_LL_UTILS_PLLVCO_OUTPUT(__VALUE__) ((UTILS_PLLVCO_OUTPUT_MIN <= (__VALUE__)) && ((__VALUE__) <= UTILS_PLLVCO_OUTPUT_MAX))
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223
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224 #if !defined(RCC_MAX_FREQUENCY_SCALE1)
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225 #define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE2) : \
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226 ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE3))
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227
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228 #elif defined(RCC_MAX_FREQUENCY_SCALE3)
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229 #define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE1) : \
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230 (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE2) : \
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231 ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE3))
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232
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233 #else
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234 #define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1) ? ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE1) : \
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235 ((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE2))
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236
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237 #endif /* RCC_MAX_FREQUENCY_SCALE1*/
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238 #define IS_LL_UTILS_HSE_BYPASS(__STATE__) (((__STATE__) == LL_UTILS_HSEBYPASS_ON) \
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239 || ((__STATE__) == LL_UTILS_HSEBYPASS_OFF))
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240
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241 #define IS_LL_UTILS_HSE_FREQUENCY(__FREQUENCY__) (((__FREQUENCY__) >= UTILS_HSE_FREQUENCY_MIN) && ((__FREQUENCY__) <= UTILS_HSE_FREQUENCY_MAX))
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242 /**
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243 * @}
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244 */
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245 /* Private function prototypes -----------------------------------------------*/
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246 /** @defgroup UTILS_LL_Private_Functions UTILS Private functions
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247 * @{
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248 */
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249 static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency,
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250 LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct);
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251 static ErrorStatus UTILS_SetFlashLatency(uint32_t HCLK_Frequency);
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252 static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
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253 static ErrorStatus UTILS_PLL_IsBusy(void);
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254 /**
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255 * @}
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256 */
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257
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258 /* Exported functions --------------------------------------------------------*/
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259 /** @addtogroup UTILS_LL_Exported_Functions
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260 * @{
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261 */
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262
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263 /** @addtogroup UTILS_LL_EF_DELAY
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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 * @brief This function configures the Cortex-M SysTick source to have 1ms time base.
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269 * @note When a RTOS is used, it is recommended to avoid changing the Systick
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270 * configuration by calling this function, for a delay use rather osDelay RTOS service.
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271 * @param HCLKFrequency HCLK frequency in Hz
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272 * @note HCLK frequency can be calculated thanks to RCC helper macro or function @ref LL_RCC_GetSystemClocksFreq
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273 * @retval None
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274 */
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275 void LL_Init1msTick(uint32_t HCLKFrequency)
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276 {
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277 /* Use frequency provided in argument */
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278 LL_InitTick(HCLKFrequency, 1000U);
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279 }
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280
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281 /**
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282 * @brief This function provides accurate delay (in milliseconds) based
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283 * on SysTick counter flag
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284 * @note When a RTOS is used, it is recommended to avoid using blocking delay
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285 * and use rather osDelay service.
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286 * @note To respect 1ms timebase, user should call @ref LL_Init1msTick function which
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287 * will configure Systick to 1ms
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288 * @param Delay specifies the delay time length, in milliseconds.
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289 * @retval None
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290 */
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291 void LL_mDelay(uint32_t Delay)
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292 {
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293 __IO uint32_t tmp = SysTick->CTRL; /* Clear the COUNTFLAG first */
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294 /* Add this code to indicate that local variable is not used */
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295 ((void)tmp);
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296
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297 /* Add a period to guaranty minimum wait */
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298 if(Delay < LL_MAX_DELAY)
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299 {
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300 Delay++;
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301 }
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302
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303 while (Delay)
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304 {
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305 if((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) != 0U)
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306 {
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307 Delay--;
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308 }
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309 }
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310 }
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311
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312 /**
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313 * @}
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314 */
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315
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316 /** @addtogroup UTILS_EF_SYSTEM
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317 * @brief System Configuration functions
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318 *
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319 @verbatim
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320 ===============================================================================
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321 ##### System Configuration functions #####
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322 ===============================================================================
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323 [..]
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324 System, AHB and APB buses clocks configuration
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325
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326 (+) The maximum frequency of the SYSCLK, HCLK, PCLK1 and PCLK2 is 180000000 Hz.
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327 @endverbatim
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328 @internal
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329 Depending on the device voltage range, the maximum frequency should be
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330 adapted accordingly to the Refenece manual.
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331 @endinternal
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332 * @{
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333 */
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334
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335 /**
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336 * @brief This function sets directly SystemCoreClock CMSIS variable.
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337 * @note Variable can be calculated also through SystemCoreClockUpdate function.
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338 * @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
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339 * @retval None
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340 */
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341 void LL_SetSystemCoreClock(uint32_t HCLKFrequency)
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342 {
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343 /* HCLK clock frequency */
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344 SystemCoreClock = HCLKFrequency;
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345 }
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346
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347 /**
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348 * @brief This function configures system clock at maximum frequency with HSI as clock source of the PLL
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349 * @note The application need to ensure that PLL is disabled.
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350 * @note Function is based on the following formula:
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351 * - PLL output frequency = (((HSI frequency / PLLM) * PLLN) / PLLP)
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352 * - PLLM: ensure that the VCO input frequency ranges from @ref RCC_PLLVCO_INPUT_MIN to @ref RCC_PLLVCO_INPUT_MAX (PLLVCO_input = HSI frequency / PLLM)
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353 * - PLLN: ensure that the VCO output frequency is between @ref RCC_PLLVCO_OUTPUT_MIN and @ref RCC_PLLVCO_OUTPUT_MAX (PLLVCO_output = PLLVCO_input * PLLN)
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354 * - PLLP: ensure that max frequency at 180000000 Hz is reach (PLLVCO_output / PLLP)
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355 * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
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356 * the configuration information for the PLL.
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357 * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
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358 * the configuration information for the BUS prescalers.
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359 * @retval An ErrorStatus enumeration value:
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360 * - SUCCESS: Max frequency configuration done
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361 * - ERROR: Max frequency configuration not done
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362 */
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363 ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
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364 LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
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365 {
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366 ErrorStatus status = SUCCESS;
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367 uint32_t pllfreq = 0U;
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368
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369 /* Check if one of the PLL is enabled */
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370 if(UTILS_PLL_IsBusy() == SUCCESS)
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371 {
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372 /* Calculate the new PLL output frequency */
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373 pllfreq = UTILS_GetPLLOutputFrequency(HSI_VALUE, UTILS_PLLInitStruct);
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374
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375 /* Enable HSI if not enabled */
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376 if(LL_RCC_HSI_IsReady() != 1U)
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377 {
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378 LL_RCC_HSI_Enable();
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379 while (LL_RCC_HSI_IsReady() != 1U)
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380 {
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381 /* Wait for HSI ready */
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382 }
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383 }
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384
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385 /* Configure PLL */
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386 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
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387 UTILS_PLLInitStruct->PLLP);
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388
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389 /* Enable PLL and switch system clock to PLL */
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390 status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
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391 }
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392 else
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393 {
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394 /* Current PLL configuration cannot be modified */
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395 status = ERROR;
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396 }
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397
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398 return status;
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399 }
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400
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401 /**
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402 * @brief This function configures system clock with HSE as clock source of the PLL
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403 * @note The application need to ensure that PLL is disabled.
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404 * - PLL output frequency = (((HSI frequency / PLLM) * PLLN) / PLLP)
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405 * - PLLM: ensure that the VCO input frequency ranges from @ref RCC_PLLVCO_INPUT_MIN to @ref RCC_PLLVCO_INPUT_MAX (PLLVCO_input = HSI frequency / PLLM)
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406 * - PLLN: ensure that the VCO output frequency is between @ref RCC_PLLVCO_OUTPUT_MIN and @ref RCC_PLLVCO_OUTPUT_MAX (PLLVCO_output = PLLVCO_input * PLLN)
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407 * - PLLP: ensure that max frequency at 180000000 Hz is reach (PLLVCO_output / PLLP)
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408 * @param HSEFrequency Value between Min_Data = 4000000 and Max_Data = 26000000
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409 * @param HSEBypass This parameter can be one of the following values:
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410 * @arg @ref LL_UTILS_HSEBYPASS_ON
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411 * @arg @ref LL_UTILS_HSEBYPASS_OFF
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412 * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
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413 * the configuration information for the PLL.
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414 * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
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415 * the configuration information for the BUS prescalers.
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416 * @retval An ErrorStatus enumeration value:
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417 * - SUCCESS: Max frequency configuration done
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
418 * - ERROR: Max frequency configuration not done
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
419 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
420 ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
421 LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
422 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
423 ErrorStatus status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
424 uint32_t pllfreq = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
425
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
426 /* Check the parameters */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
427 assert_param(IS_LL_UTILS_HSE_FREQUENCY(HSEFrequency));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
428 assert_param(IS_LL_UTILS_HSE_BYPASS(HSEBypass));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
429
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
430 /* Check if one of the PLL is enabled */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
431 if(UTILS_PLL_IsBusy() == SUCCESS)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
432 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
433 /* Calculate the new PLL output frequency */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
434 pllfreq = UTILS_GetPLLOutputFrequency(HSEFrequency, UTILS_PLLInitStruct);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
435
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
436 /* Enable HSE if not enabled */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
437 if(LL_RCC_HSE_IsReady() != 1U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
438 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
439 /* Check if need to enable HSE bypass feature or not */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
440 if(HSEBypass == LL_UTILS_HSEBYPASS_ON)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
441 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
442 LL_RCC_HSE_EnableBypass();
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
443 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
444 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
445 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
446 LL_RCC_HSE_DisableBypass();
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
447 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
448
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
449 /* Enable HSE */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
450 LL_RCC_HSE_Enable();
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
451 while (LL_RCC_HSE_IsReady() != 1U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
452 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
453 /* Wait for HSE ready */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
454 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
455 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
456
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
457 /* Configure PLL */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
458 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
459 UTILS_PLLInitStruct->PLLP);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
460
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
461 /* Enable PLL and switch system clock to PLL */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
462 status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
463 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
464 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
465 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
466 /* Current PLL configuration cannot be modified */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
467 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
468 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
469
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
470 return status;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
471 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
472
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
473 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
474 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
475 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
476
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
477 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
478 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
479 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
480
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
481 /** @addtogroup UTILS_LL_Private_Functions
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
482 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
483 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
484 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
485 * @brief Update number of Flash wait states in line with new frequency and current
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
486 voltage range.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
487 * @note This Function support ONLY devices with supply voltage (voltage range) between 2.7V and 3.6V
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
488 * @param HCLK_Frequency HCLK frequency
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
489 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
490 * - SUCCESS: Latency has been modified
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
491 * - ERROR: Latency cannot be modified
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
492 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
493 static ErrorStatus UTILS_SetFlashLatency(uint32_t HCLK_Frequency)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
494 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
495 ErrorStatus status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
496
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
497 uint32_t latency = LL_FLASH_LATENCY_0; /* default value 0WS */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
498
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
499 /* Frequency cannot be equal to 0 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
500 if(HCLK_Frequency == 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
501 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
502 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
503 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
504 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
505 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
506 if(LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
507 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
508 #if defined (UTILS_SCALE1_LATENCY5_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
509 if((HCLK_Frequency > UTILS_SCALE1_LATENCY5_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
510 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
511 latency = LL_FLASH_LATENCY_5;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
512 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
513 #endif /*UTILS_SCALE1_LATENCY5_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
514 #if defined (UTILS_SCALE1_LATENCY4_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
515 if((HCLK_Frequency > UTILS_SCALE1_LATENCY4_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
516 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
517 latency = LL_FLASH_LATENCY_4;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
518 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
519 #endif /* UTILS_SCALE1_LATENCY4_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
520 #if defined (UTILS_SCALE1_LATENCY3_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
521 if((HCLK_Frequency > UTILS_SCALE1_LATENCY3_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
522 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
523 latency = LL_FLASH_LATENCY_3;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
524 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
525 #endif /* UTILS_SCALE1_LATENCY3_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
526 #if defined (UTILS_SCALE1_LATENCY2_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
527 if((HCLK_Frequency > UTILS_SCALE1_LATENCY2_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
528 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
529 latency = LL_FLASH_LATENCY_2;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
530 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
531 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
532 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
533 if((HCLK_Frequency > UTILS_SCALE1_LATENCY1_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
534 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
535 latency = LL_FLASH_LATENCY_1;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
536 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
537 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
538 #endif /* UTILS_SCALE1_LATENCY2_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
539 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
540 if(LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
541 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
542 #if defined (UTILS_SCALE2_LATENCY5_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
543 if((HCLK_Frequency > UTILS_SCALE2_LATENCY5_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
544 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
545 latency = LL_FLASH_LATENCY_5;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
546 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
547 #endif /*UTILS_SCALE1_LATENCY5_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
548 #if defined (UTILS_SCALE2_LATENCY4_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
549 if((HCLK_Frequency > UTILS_SCALE2_LATENCY4_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
550 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
551 latency = LL_FLASH_LATENCY_4;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
552 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
553 #endif /*UTILS_SCALE1_LATENCY4_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
554 #if defined (UTILS_SCALE2_LATENCY3_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
555 if((HCLK_Frequency > UTILS_SCALE2_LATENCY3_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
556 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
557 latency = LL_FLASH_LATENCY_3;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
558 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
559 #endif /*UTILS_SCALE1_LATENCY3_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
560 if((HCLK_Frequency > UTILS_SCALE2_LATENCY2_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
561 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
562 latency = LL_FLASH_LATENCY_2;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
563 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
564 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
565 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
566 if((HCLK_Frequency > UTILS_SCALE2_LATENCY1_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
Ideenmodellierer
parents:
diff changeset
567 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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568 latency = LL_FLASH_LATENCY_1;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
569 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
570 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
571 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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572 #if defined (LL_PWR_REGU_VOLTAGE_SCALE3)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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573 if(LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE3)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
574 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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575 #if defined (UTILS_SCALE3_LATENCY3_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
576 if((HCLK_Frequency > UTILS_SCALE3_LATENCY3_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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577 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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578 latency = LL_FLASH_LATENCY_3;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
579 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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580 #endif /*UTILS_SCALE1_LATENCY3_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
581 #if defined (UTILS_SCALE3_LATENCY2_FREQ)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
582 if((HCLK_Frequency > UTILS_SCALE3_LATENCY2_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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583 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
584 latency = LL_FLASH_LATENCY_2;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
585 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
586 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
587 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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588 if((HCLK_Frequency > UTILS_SCALE3_LATENCY1_FREQ)&&(latency == LL_FLASH_LATENCY_0))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
589 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
590 latency = LL_FLASH_LATENCY_1;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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591 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
592 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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593 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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594 #endif /*UTILS_SCALE1_LATENCY2_FREQ */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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595 #endif /* LL_PWR_REGU_VOLTAGE_SCALE3 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
596
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
597 LL_FLASH_SetLatency(latency);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
598
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
599 /* Check that the new number of wait states is taken into account to access the Flash
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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600 memory by reading the FLASH_ACR register */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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601 if(LL_FLASH_GetLatency() != latency)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
602 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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603 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
604 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
605 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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606 return status;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
607 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
608
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
609 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
610 * @brief Function to check that PLL can be modified
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
611 * @param PLL_InputFrequency PLL input frequency (in Hz)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
612 * @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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613 * the configuration information for the PLL.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
614 * @retval PLL output frequency (in Hz)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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615 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
616 static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency, LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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617 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
618 uint32_t pllfreq = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
619
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
620 /* Check the parameters */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
621 assert_param(IS_LL_UTILS_PLLM_VALUE(UTILS_PLLInitStruct->PLLM));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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622 assert_param(IS_LL_UTILS_PLLN_VALUE(UTILS_PLLInitStruct->PLLN));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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623 assert_param(IS_LL_UTILS_PLLP_VALUE(UTILS_PLLInitStruct->PLLP));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
624
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
625 /* Check different PLL parameters according to RM */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
626 /* - PLLM: ensure that the VCO input frequency ranges from @ref UTILS_PLLVCO_INPUT_MIN to @ref UTILS_PLLVCO_INPUT_MAX MHz. */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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627 pllfreq = PLL_InputFrequency / (UTILS_PLLInitStruct->PLLM & (RCC_PLLCFGR_PLLM >> RCC_PLLCFGR_PLLM_Pos));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
628 assert_param(IS_LL_UTILS_PLLVCO_INPUT(pllfreq));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
629
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
630 /* - PLLN: ensure that the VCO output frequency is between @ref UTILS_PLLVCO_OUTPUT_MIN and @ref UTILS_PLLVCO_OUTPUT_MAX .*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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631 pllfreq = pllfreq * (UTILS_PLLInitStruct->PLLN & (RCC_PLLCFGR_PLLN >> RCC_PLLCFGR_PLLN_Pos));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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632 assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(pllfreq));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
633
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
634 /* - PLLP: ensure that max frequency at @ref RCC_MAX_FREQUENCY Hz is reached */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
635 pllfreq = pllfreq / (((UTILS_PLLInitStruct->PLLP >> RCC_PLLCFGR_PLLP_Pos) + 1) * 2);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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636 assert_param(IS_LL_UTILS_PLL_FREQUENCY(pllfreq));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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637
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
638 return pllfreq;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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639 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
640
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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641 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
642 * @brief Function to check that PLL can be modified
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
643 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
644 * - SUCCESS: PLL modification can be done
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
645 * - ERROR: PLL is busy
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
646 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
647 static ErrorStatus UTILS_PLL_IsBusy(void)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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648 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
649 ErrorStatus status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
650
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
651 /* Check if PLL is busy*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
652 if(LL_RCC_PLL_IsReady() != 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
653 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
654 /* PLL configuration cannot be modified */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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655 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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656 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
657
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
658 #if defined(RCC_PLLSAI_SUPPORT)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
659 /* Check if PLLSAI is busy*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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660 if(LL_RCC_PLLSAI_IsReady() != 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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661 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
662 /* PLLSAI1 configuration cannot be modified */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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663 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
664 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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665 #endif /*RCC_PLLSAI_SUPPORT*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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666 #if defined(RCC_PLLI2S_SUPPORT)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
667 /* Check if PLLI2S is busy*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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668 if(LL_RCC_PLLI2S_IsReady() != 0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
669 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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670 /* PLLI2S configuration cannot be modified */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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671 status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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672 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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673 #endif /*RCC_PLLI2S_SUPPORT*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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674 return status;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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675 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
676
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
677 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
678 * @brief Function to enable PLL and switch system clock to PLL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
679 * @param SYSCLK_Frequency SYSCLK frequency
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
680 * @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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681 * the configuration information for the BUS prescalers.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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682 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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683 * - SUCCESS: No problem to switch system to PLL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
684 * - ERROR: Problem to switch system to PLL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
685 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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686 static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency, LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
687 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
688 ErrorStatus status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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689 uint32_t hclk_frequency = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
690
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
691 assert_param(IS_LL_UTILS_SYSCLK_DIV(UTILS_ClkInitStruct->AHBCLKDivider));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
692 assert_param(IS_LL_UTILS_APB1_DIV(UTILS_ClkInitStruct->APB1CLKDivider));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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693 assert_param(IS_LL_UTILS_APB2_DIV(UTILS_ClkInitStruct->APB2CLKDivider));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
694
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
695 /* Calculate HCLK frequency */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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696 hclk_frequency = __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, UTILS_ClkInitStruct->AHBCLKDivider);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
697
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
698 /* Increasing the number of wait states because of higher CPU frequency */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
699 if(SystemCoreClock < hclk_frequency)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
700 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
701 /* Set FLASH latency to highest latency */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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702 status = UTILS_SetFlashLatency(hclk_frequency);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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703 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
704
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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parents:
diff changeset
705 /* Update system clock configuration */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
706 if(status == SUCCESS)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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707 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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708 /* Enable PLL */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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709 LL_RCC_PLL_Enable();
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
710 while (LL_RCC_PLL_IsReady() != 1U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
711 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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diff changeset
712 /* Wait for PLL ready */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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713 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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714
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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715 /* Sysclk activation on the main PLL */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure
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716 LL_RCC_SetAHBPrescaler(UTILS_ClkInitStruct->AHBCLKDivider);
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717 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
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718 while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
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719 {
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720 /* Wait for system clock switch to PLL */
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721 }
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722
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723 /* Set APB1 & APB2 prescaler*/
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724 LL_RCC_SetAPB1Prescaler(UTILS_ClkInitStruct->APB1CLKDivider);
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725 LL_RCC_SetAPB2Prescaler(UTILS_ClkInitStruct->APB2CLKDivider);
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726 }
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727
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728 /* Decreasing the number of wait states because of lower CPU frequency */
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729 if(SystemCoreClock > hclk_frequency)
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730 {
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731 /* Set FLASH latency to lowest latency */
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732 status = UTILS_SetFlashLatency(hclk_frequency);
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733 }
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734
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735 /* Update SystemCoreClock variable */
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736 if(status == SUCCESS)
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737 {
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738 LL_SetSystemCoreClock(hclk_frequency);
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739 }
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740
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741 return status;
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742 }
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743
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744 /**
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745 * @}
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746 */
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747
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748 /**
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749 * @}
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750 */
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751
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752 /**
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753 * @}
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754 */
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755
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756 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/