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1 /**
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2 ******************************************************************************
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3 * File Name : main.c
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4 * Description : Main program body
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5 ******************************************************************************
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6 *
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7 * COPYRIGHT(c) 2017 STMicroelectronics
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8 *
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9 * Redistribution and use in source and binary forms, with or without modification,
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10 * are permitted provided that the following conditions are met:
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11 * 1. Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the following disclaimer.
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13 * 2. Redistributions in binary form must reproduce the above copyright notice,
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14 * this list of conditions and the following disclaimer in the documentation
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15 * and/or other materials provided with the distribution.
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16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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17 * may be used to endorse or promote products derived from this software
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18 * without specific prior written permission.
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19 *
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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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30 *
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31 ******************************************************************************
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32 */
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33 /* Includes ------------------------------------------------------------------*/
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34 #include "main.h"
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35 #include "stm32f1xx_hal.h"
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36
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37 /* USER CODE BEGIN Includes */
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38
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39 /* USER CODE END Includes */
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40
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41 /* Private variables ---------------------------------------------------------*/
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42 TIM_HandleTypeDef htim4;
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43
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44 /* USER CODE BEGIN PV */
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45 /* Private variables ---------------------------------------------------------*/
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46
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47 /* USER CODE END PV */
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48
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49 /* Private function prototypes -----------------------------------------------*/
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50 void SystemClock_Config(void);
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51 void Error_Handler(void);
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52 static void MX_GPIO_Init(void);
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53 static void MX_TIM4_Init(void);
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54 void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);
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55
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56
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57 /* USER CODE BEGIN PFP */
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58 /* Private function prototypes -----------------------------------------------*/
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59
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60 /* USER CODE END PFP */
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61
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62 /* USER CODE BEGIN 0 */
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63
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64 /* USER CODE END 0 */
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65
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66 int main(void)
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67 {
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68
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69 /* USER CODE BEGIN 1 */
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70
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71 /* USER CODE END 1 */
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72
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73 /* MCU Configuration----------------------------------------------------------*/
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74
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75 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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76 HAL_Init();
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77
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78 /* Configure the system clock */
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79 SystemClock_Config();
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80
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81 /* Initialize all configured peripherals */
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82 MX_GPIO_Init();
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83 MX_TIM4_Init();
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84
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85 /* USER CODE BEGIN 2 */
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86
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87 /* USER CODE END 2 */
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88
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89 /* Infinite loop */
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90 /* USER CODE BEGIN WHILE */
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91 while (1)
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92 {
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93 /* USER CODE END WHILE */
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94
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95 /* USER CODE BEGIN 3 */
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96
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97 }
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98 /* USER CODE END 3 */
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99
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100 }
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101
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102 /** System Clock Configuration
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103 */
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104 void SystemClock_Config(void)
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105 {
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106
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107 RCC_OscInitTypeDef RCC_OscInitStruct;
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108 RCC_ClkInitTypeDef RCC_ClkInitStruct;
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109
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110 /**Initializes the CPU, AHB and APB busses clocks
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111 */
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112 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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113 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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114 RCC_OscInitStruct.HSICalibrationValue = 16;
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115 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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116 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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117 {
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118 Error_Handler();
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119 }
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120
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121 /**Initializes the CPU, AHB and APB busses clocks
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122 */
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123 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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124 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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125 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
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126 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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127 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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128 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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129
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130 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
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131 {
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132 Error_Handler();
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133 }
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134
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135 /**Configure the Systick interrupt time
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136 */
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137 HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
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138
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139 /**Configure the Systick
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140 */
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141 HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
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142
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143 /* SysTick_IRQn interrupt configuration */
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144 HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
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145 }
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146
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147 /* TIM4 init function */
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148 static void MX_TIM4_Init(void)
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149 {
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150
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151 TIM_ClockConfigTypeDef sClockSourceConfig;
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152 TIM_MasterConfigTypeDef sMasterConfig;
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153 TIM_OC_InitTypeDef sConfigOC;
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154
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155 htim4.Instance = TIM4;
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156 htim4.Init.Prescaler = 0;
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157 htim4.Init.CounterMode = TIM_COUNTERMODE_UP;
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158 htim4.Init.Period = 0;
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159 htim4.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
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160 if (HAL_TIM_Base_Init(&htim4) != HAL_OK)
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161 {
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162 Error_Handler();
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163 }
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164
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165 sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
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166 if (HAL_TIM_ConfigClockSource(&htim4, &sClockSourceConfig) != HAL_OK)
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167 {
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168 Error_Handler();
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169 }
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170
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171 if (HAL_TIM_PWM_Init(&htim4) != HAL_OK)
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172 {
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173 Error_Handler();
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174 }
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175
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176 sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
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177 sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
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178 if (HAL_TIMEx_MasterConfigSynchronization(&htim4, &sMasterConfig) != HAL_OK)
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179 {
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180 Error_Handler();
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181 }
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182
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183 sConfigOC.OCMode = TIM_OCMODE_PWM1;
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184 sConfigOC.Pulse = 0;
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185 sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
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186 sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
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187 if (HAL_TIM_PWM_ConfigChannel(&htim4, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
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188 {
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189 Error_Handler();
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190 }
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191
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192 HAL_TIM_MspPostInit(&htim4);
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193
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194 }
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195
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196 /** Configure pins as
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197 * Analog
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198 * Input
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199 * Output
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200 * EVENT_OUT
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201 * EXTI
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202 */
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203 static void MX_GPIO_Init(void)
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204 {
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205
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206 GPIO_InitTypeDef GPIO_InitStruct;
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207
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208 /* GPIO Ports Clock Enable */
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209 __HAL_RCC_GPIOC_CLK_ENABLE();
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210 __HAL_RCC_GPIOD_CLK_ENABLE();
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211 __HAL_RCC_GPIOA_CLK_ENABLE();
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212 __HAL_RCC_GPIOB_CLK_ENABLE();
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213
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214 /*Configure GPIO pin Output Level */
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215 HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
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216
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217 /*Configure GPIO pin : PA5 */
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218 GPIO_InitStruct.Pin = GPIO_PIN_5;
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219 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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220 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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221 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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222
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223 }
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224
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225 /* USER CODE BEGIN 4 */
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226
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227 /* USER CODE END 4 */
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228
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229 /**
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230 * @brief This function is executed in case of error occurrence.
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231 * @param None
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232 * @retval None
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233 */
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234 void Error_Handler(void)
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235 {
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236 /* USER CODE BEGIN Error_Handler */
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237 /* User can add his own implementation to report the HAL error return state */
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238 while(1)
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239 {
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240 }
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241 /* USER CODE END Error_Handler */
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242 }
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243
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244 #ifdef USE_FULL_ASSERT
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245
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246 /**
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247 * @brief Reports the name of the source file and the source line number
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248 * where the assert_param error has occurred.
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249 * @param file: pointer to the source file name
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250 * @param line: assert_param error line source number
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251 * @retval None
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252 */
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253 void assert_failed(uint8_t* file, uint32_t line)
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254 {
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255 /* USER CODE BEGIN 6 */
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256 /* User can add his own implementation to report the file name and line number,
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257 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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258 /* USER CODE END 6 */
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259
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260 }
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261
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262 #endif
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263
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264 /**
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265 * @}
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266 */
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267
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268 /**
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269 * @}
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270 */
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271
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272 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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