main.c 7.6 KB

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  1. /* USER CODE BEGIN Header */
  2. /**
  3. ******************************************************************************
  4. * @file : main.c
  5. * @brief : Main program body
  6. ******************************************************************************
  7. ** This notice applies to any and all portions of this file
  8. * that are not between comment pairs USER CODE BEGIN and
  9. * USER CODE END. Other portions of this file, whether
  10. * inserted by the user or by software development tools
  11. * are owned by their respective copyright owners.
  12. *
  13. * COPYRIGHT(c) 2018 STMicroelectronics
  14. *
  15. * Redistribution and use in source and binary forms, with or without modification,
  16. * are permitted provided that the following conditions are met:
  17. * 1. Redistributions of source code must retain the above copyright notice,
  18. * this list of conditions and the following disclaimer.
  19. * 2. Redistributions in binary form must reproduce the above copyright notice,
  20. * this list of conditions and the following disclaimer in the documentation
  21. * and/or other materials provided with the distribution.
  22. * 3. Neither the name of STMicroelectronics nor the names of its contributors
  23. * may be used to endorse or promote products derived from this software
  24. * without specific prior written permission.
  25. *
  26. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  27. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  29. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  30. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  32. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  33. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  34. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  35. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36. *
  37. ******************************************************************************
  38. */
  39. /* USER CODE END Header */
  40. /* Includes ------------------------------------------------------------------*/
  41. #include "main.h"
  42. /* Private includes ----------------------------------------------------------*/
  43. /* USER CODE BEGIN Includes */
  44. /* USER CODE END Includes */
  45. /* Private typedef -----------------------------------------------------------*/
  46. /* USER CODE BEGIN PTD */
  47. /* USER CODE END PTD */
  48. /* Private define ------------------------------------------------------------*/
  49. /* USER CODE BEGIN PD */
  50. /* USER CODE END PD */
  51. /* Private macro -------------------------------------------------------------*/
  52. /* USER CODE BEGIN PM */
  53. /* USER CODE END PM */
  54. /* Private variables ---------------------------------------------------------*/
  55. UART_HandleTypeDef huart2;
  56. /* USER CODE BEGIN PV */
  57. /* USER CODE END PV */
  58. /* Private function prototypes -----------------------------------------------*/
  59. void SystemClock_Config(void);
  60. static void MX_GPIO_Init(void);
  61. static void MX_USART2_UART_Init(void);
  62. /* USER CODE BEGIN PFP */
  63. /* USER CODE END PFP */
  64. /* Private user code ---------------------------------------------------------*/
  65. /* USER CODE BEGIN 0 */
  66. /* USER CODE END 0 */
  67. /**
  68. * @brief The application entry point.
  69. * @retval int
  70. */
  71. int main(void)
  72. {
  73. /* USER CODE BEGIN 1 */
  74. /* USER CODE END 1 */
  75. /* MCU Configuration--------------------------------------------------------*/
  76. /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  77. HAL_Init();
  78. /* USER CODE BEGIN Init */
  79. /* USER CODE END Init */
  80. /* Configure the system clock */
  81. SystemClock_Config();
  82. /* USER CODE BEGIN SysInit */
  83. /* USER CODE END SysInit */
  84. /* Initialize all configured peripherals */
  85. MX_GPIO_Init();
  86. MX_USART2_UART_Init();
  87. /* USER CODE BEGIN 2 */
  88. /* USER CODE END 2 */
  89. /* Infinite loop */
  90. /* USER CODE BEGIN WHILE */
  91. while (1)
  92. {
  93. /* USER CODE END WHILE */
  94. /* USER CODE BEGIN 3 */
  95. }
  96. /* USER CODE END 3 */
  97. }
  98. /**
  99. * @brief System Clock Configuration
  100. * @retval None
  101. */
  102. void SystemClock_Config(void)
  103. {
  104. RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  105. RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  106. /**Initializes the CPU, AHB and APB busses clocks
  107. */
  108. RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  109. RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  110. RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV5;
  111. RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  112. RCC_OscInitStruct.Prediv1Source = RCC_PREDIV1_SOURCE_PLL2;
  113. RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  114. RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  115. RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  116. RCC_OscInitStruct.PLL2.PLL2State = RCC_PLL2_ON;
  117. RCC_OscInitStruct.PLL2.PLL2MUL = RCC_PLL2_MUL8;
  118. RCC_OscInitStruct.PLL2.HSEPrediv2Value = RCC_HSE_PREDIV2_DIV5;
  119. if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  120. {
  121. Error_Handler();
  122. }
  123. /**Initializes the CPU, AHB and APB busses clocks
  124. */
  125. RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  126. |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  127. RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  128. RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  129. RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  130. RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  131. if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  132. {
  133. Error_Handler();
  134. }
  135. /**Configure the Systick interrupt time
  136. */
  137. __HAL_RCC_PLLI2S_ENABLE();
  138. }
  139. /**
  140. * @brief USART2 Initialization Function
  141. * @param None
  142. * @retval None
  143. */
  144. static void MX_USART2_UART_Init(void)
  145. {
  146. /* USER CODE BEGIN USART2_Init 0 */
  147. /* USER CODE END USART2_Init 0 */
  148. /* USER CODE BEGIN USART2_Init 1 */
  149. /* USER CODE END USART2_Init 1 */
  150. huart2.Instance = USART2;
  151. huart2.Init.BaudRate = 115200;
  152. huart2.Init.WordLength = UART_WORDLENGTH_8B;
  153. huart2.Init.StopBits = UART_STOPBITS_1;
  154. huart2.Init.Parity = UART_PARITY_NONE;
  155. huart2.Init.Mode = UART_MODE_TX_RX;
  156. huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  157. huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  158. if (HAL_UART_Init(&huart2) != HAL_OK)
  159. {
  160. Error_Handler();
  161. }
  162. /* USER CODE BEGIN USART2_Init 2 */
  163. /* USER CODE END USART2_Init 2 */
  164. }
  165. /**
  166. * @brief GPIO Initialization Function
  167. * @param None
  168. * @retval None
  169. */
  170. static void MX_GPIO_Init(void)
  171. {
  172. /* GPIO Ports Clock Enable */
  173. __HAL_RCC_GPIOC_CLK_ENABLE();
  174. __HAL_RCC_GPIOA_CLK_ENABLE();
  175. __HAL_RCC_GPIOD_CLK_ENABLE();
  176. __HAL_RCC_GPIOB_CLK_ENABLE();
  177. }
  178. /* USER CODE BEGIN 4 */
  179. /* USER CODE END 4 */
  180. /**
  181. * @brief This function is executed in case of error occurrence.
  182. * @retval None
  183. */
  184. void Error_Handler(void)
  185. {
  186. /* USER CODE BEGIN Error_Handler_Debug */
  187. /* User can add his own implementation to report the HAL error return state */
  188. /* USER CODE END Error_Handler_Debug */
  189. }
  190. #ifdef USE_FULL_ASSERT
  191. /**
  192. * @brief Reports the name of the source file and the source line number
  193. * where the assert_param error has occurred.
  194. * @param file: pointer to the source file name
  195. * @param line: assert_param error line source number
  196. * @retval None
  197. */
  198. void assert_failed(uint8_t *file, uint32_t line)
  199. {
  200. /* USER CODE BEGIN 6 */
  201. /* User can add his own implementation to report the file name and line number,
  202. tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  203. /* USER CODE END 6 */
  204. }
  205. #endif /* USE_FULL_ASSERT */
  206. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/