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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_timebase_tim_template.c @ 181:331882a89421 Cleanup_Compass_Wireless

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Removed not suppoted wireless feature The code contains parts of a wireless sensor feature which is not supported by the OSTC4 hardware.
author ideenmodellierer
date Wed, 13 Mar 2019 21:51:25 +0100
parents c78bcbd5deda
children
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128
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_timebase_tim_template.c
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4 * @author MCD Application Team
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5 * @brief HAL time base based on the hardware TIM Template.
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6 *
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7 * This file overrides the native HAL time base functions (defined as weak)
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8 * the TIM time base:
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9 * + Intializes the TIM peripheral generate a Period elapsed Event each 1ms
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10 * + HAL_IncTick is called inside HAL_TIM_PeriodElapsedCallback ie each 1ms
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11 *
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12 ******************************************************************************
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13 * @attention
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14 *
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15 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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16 *
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17 * Redistribution and use in source and binary forms, with or without modification,
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18 * are permitted provided that the following conditions are met:
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19 * 1. Redistributions of source code must retain the above copyright notice,
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20 * this list of conditions and the following disclaimer.
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21 * 2. Redistributions in binary form must reproduce the above copyright notice,
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22 * this list of conditions and the following disclaimer in the documentation
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23 * and/or other materials provided with the distribution.
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24 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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25 * may be used to endorse or promote products derived from this software
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26 * without specific prior written permission.
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27 *
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28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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31 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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34 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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38 *
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39 ******************************************************************************
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40 */
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41
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42 /* Includes ------------------------------------------------------------------*/
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43 #include "stm32f4xx_hal.h"
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44
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45 /** @addtogroup STM32F4xx_HAL_Driver
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46 * @{
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47 */
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48
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49 /** @addtogroup HAL_TimeBase_TIM
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50 * @{
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51 */
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52
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53 /* Private typedef -----------------------------------------------------------*/
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54 /* Private define ------------------------------------------------------------*/
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55 /* Private macro -------------------------------------------------------------*/
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56 /* Private variables ---------------------------------------------------------*/
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57 TIM_HandleTypeDef TimHandle;
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58 /* Private function prototypes -----------------------------------------------*/
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59 void TIM6_DAC_IRQHandler(void);
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60 /* Private functions ---------------------------------------------------------*/
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61
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62 /**
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63 * @brief This function configures the TIM6 as a time base source.
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64 * The time source is configured to have 1ms time base with a dedicated
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65 * Tick interrupt priority.
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66 * @note This function is called automatically at the beginning of program after
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67 * reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
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68 * @param TickPriority Tick interrupt priority.
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69 * @retval HAL status
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70 */
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71 HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority)
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72 {
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73 RCC_ClkInitTypeDef clkconfig;
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74 uint32_t uwTimclock, uwAPB1Prescaler = 0U;
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75 uint32_t uwPrescalerValue = 0U;
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76 uint32_t pFLatency;
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77
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78 /*Configure the TIM6 IRQ priority */
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79 HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority ,0U);
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80
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81 /* Enable the TIM6 global Interrupt */
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82 HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
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83
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84 /* Enable TIM6 clock */
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85 __HAL_RCC_TIM6_CLK_ENABLE();
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86
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87 /* Get clock configuration */
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88 HAL_RCC_GetClockConfig(&clkconfig, &pFLatency);
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89
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90 /* Get APB1 prescaler */
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91 uwAPB1Prescaler = clkconfig.APB1CLKDivider;
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92
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93 /* Compute TIM6 clock */
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94 if (uwAPB1Prescaler == RCC_HCLK_DIV1)
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95 {
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96 uwTimclock = HAL_RCC_GetPCLK1Freq();
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97 }
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98 else
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99 {
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100 uwTimclock = 2*HAL_RCC_GetPCLK1Freq();
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101 }
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102
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103 /* Compute the prescaler value to have TIM6 counter clock equal to 1MHz */
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104 uwPrescalerValue = (uint32_t) ((uwTimclock / 1000000U) - 1U);
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105
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106 /* Initialize TIM6 */
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107 TimHandle.Instance = TIM6;
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108
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109 /* Initialize TIMx peripheral as follow:
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110 + Period = [(TIM6CLK/1000) - 1]. to have a (1/1000) s time base.
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111 + Prescaler = (uwTimclock/1000000 - 1) to have a 1MHz counter clock.
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112 + ClockDivision = 0
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113 + Counter direction = Up
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114 */
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115 TimHandle.Init.Period = (1000000U / 1000U) - 1U;
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116 TimHandle.Init.Prescaler = uwPrescalerValue;
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117 TimHandle.Init.ClockDivision = 0U;
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118 TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
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119 if(HAL_TIM_Base_Init(&TimHandle) == HAL_OK)
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120 {
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121 /* Start the TIM time Base generation in interrupt mode */
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122 return HAL_TIM_Base_Start_IT(&TimHandle);
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123 }
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124
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125 /* Return function status */
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126 return HAL_ERROR;
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127 }
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128
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129 /**
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130 * @brief Suspend Tick increment.
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131 * @note Disable the tick increment by disabling TIM6 update interrupt.
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132 * @retval None
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133 */
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134 void HAL_SuspendTick(void)
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135 {
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136 /* Disable TIM6 update Interrupt */
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137 __HAL_TIM_DISABLE_IT(&TimHandle, TIM_IT_UPDATE);
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138 }
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139
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140 /**
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141 * @brief Resume Tick increment.
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142 * @note Enable the tick increment by Enabling TIM6 update interrupt.
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143 * @retval None
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144 */
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145 void HAL_ResumeTick(void)
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146 {
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147 /* Enable TIM6 Update interrupt */
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148 __HAL_TIM_ENABLE_IT(&TimHandle, TIM_IT_UPDATE);
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149 }
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150
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151 /**
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152 * @brief Period elapsed callback in non blocking mode
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153 * @note This function is called when TIM6 interrupt took place, inside
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154 * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
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155 * a global variable "uwTick" used as application time base.
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156 * @param htim TIM handle
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157 * @retval None
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158 */
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159 void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
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160 {
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161 HAL_IncTick();
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162 }
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163
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164 /**
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165 * @brief This function handles TIM interrupt request.
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166 * @retval None
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167 */
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168 void TIM6_DAC_IRQHandler(void)
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169 {
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170 HAL_TIM_IRQHandler(&TimHandle);
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171 }
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172
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173 /**
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174 * @}
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175 */
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176
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177 /**
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178 * @}
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179 */
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180
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181 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/