|
| 1 | +/** |
| 2 | + ****************************************************************************** |
| 3 | + * File Name : main.c |
| 4 | + * Description : Main program body |
| 5 | + ****************************************************************************** |
| 6 | + ** This notice applies to any and all portions of this file |
| 7 | + * that are not between comment pairs USER CODE BEGIN and |
| 8 | + * USER CODE END. Other portions of this file, whether |
| 9 | + * inserted by the user or by software development tools |
| 10 | + * are owned by their respective copyright owners. |
| 11 | + * |
| 12 | + * COPYRIGHT(c) 2017 STMicroelectronics |
| 13 | + * |
| 14 | + * Redistribution and use in source and binary forms, with or without modification, |
| 15 | + * are permitted provided that the following conditions are met: |
| 16 | + * 1. Redistributions of source code must retain the above copyright notice, |
| 17 | + * this list of conditions and the following disclaimer. |
| 18 | + * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 19 | + * this list of conditions and the following disclaimer in the documentation |
| 20 | + * and/or other materials provided with the distribution. |
| 21 | + * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| 22 | + * may be used to endorse or promote products derived from this software |
| 23 | + * without specific prior written permission. |
| 24 | + * |
| 25 | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 26 | + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 27 | + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 28 | + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| 29 | + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 30 | + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 31 | + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 32 | + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 33 | + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 34 | + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 35 | + * |
| 36 | + ****************************************************************************** |
| 37 | + */ |
| 38 | +/* Includes ------------------------------------------------------------------*/ |
| 39 | +#include "main.h" |
| 40 | +#include "stm32f4xx_hal.h" |
| 41 | + |
| 42 | +/* USER CODE BEGIN Includes */ |
| 43 | + |
| 44 | +/* USER CODE END Includes */ |
| 45 | + |
| 46 | +/* Private variables ---------------------------------------------------------*/ |
| 47 | +UART_HandleTypeDef huart2; |
| 48 | + |
| 49 | +/* USER CODE BEGIN PV */ |
| 50 | +/* Private variables ---------------------------------------------------------*/ |
| 51 | + |
| 52 | +/* USER CODE END PV */ |
| 53 | + |
| 54 | +/* Private function prototypes -----------------------------------------------*/ |
| 55 | +void SystemClock_Config(void); |
| 56 | +static void MX_GPIO_Init(void); |
| 57 | +static void MX_USART2_UART_Init(void); |
| 58 | + |
| 59 | +/* USER CODE BEGIN PFP */ |
| 60 | +/* Private function prototypes -----------------------------------------------*/ |
| 61 | + |
| 62 | +/* USER CODE END PFP */ |
| 63 | + |
| 64 | +/* USER CODE BEGIN 0 */ |
| 65 | + |
| 66 | +char userdata[] = "Hello From user Application \r\n"; |
| 67 | + |
| 68 | +/* USER CODE END 0 */ |
| 69 | + |
| 70 | +int main(void) |
| 71 | +{ |
| 72 | + |
| 73 | + /* USER CODE BEGIN 1 */ |
| 74 | + |
| 75 | + /* USER CODE END 1 */ |
| 76 | + |
| 77 | + /* MCU Configuration----------------------------------------------------------*/ |
| 78 | + |
| 79 | + /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ |
| 80 | + HAL_Init(); |
| 81 | + |
| 82 | + /* USER CODE BEGIN Init */ |
| 83 | + |
| 84 | + /* USER CODE END Init */ |
| 85 | + |
| 86 | + /* Configure the system clock */ |
| 87 | + SystemClock_Config(); |
| 88 | + |
| 89 | + /* USER CODE BEGIN SysInit */ |
| 90 | + |
| 91 | + /* USER CODE END SysInit */ |
| 92 | + |
| 93 | + /* Initialize all configured peripherals */ |
| 94 | + MX_GPIO_Init(); |
| 95 | + MX_USART2_UART_Init(); |
| 96 | + |
| 97 | + /* USER CODE BEGIN 2 */ |
| 98 | + |
| 99 | + /* USER CODE END 2 */ |
| 100 | + |
| 101 | + /* Infinite loop */ |
| 102 | + /* USER CODE BEGIN WHILE */ |
| 103 | + while (1) |
| 104 | + { |
| 105 | + /* USER CODE END WHILE */ |
| 106 | + HAL_UART_Transmit(&huart2,(uint8_t*)userdata,sizeof(userdata),HAL_MAX_DELAY); |
| 107 | + uint32_t current_tick = HAL_GetTick(); |
| 108 | + while(HAL_GetTick() <= current_tick +1000); |
| 109 | + |
| 110 | + /* USER CODE BEGIN 3 */ |
| 111 | + |
| 112 | + } |
| 113 | + /* USER CODE END 3 */ |
| 114 | + |
| 115 | +} |
| 116 | + |
| 117 | +/** System Clock Configuration |
| 118 | +*/ |
| 119 | +void SystemClock_Config(void) |
| 120 | +{ |
| 121 | + |
| 122 | + RCC_OscInitTypeDef RCC_OscInitStruct; |
| 123 | + RCC_ClkInitTypeDef RCC_ClkInitStruct; |
| 124 | + |
| 125 | + /**Configure the main internal regulator output voltage |
| 126 | + */ |
| 127 | + __HAL_RCC_PWR_CLK_ENABLE(); |
| 128 | + |
| 129 | + __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3); |
| 130 | + |
| 131 | + /**Initializes the CPU, AHB and APB busses clocks |
| 132 | + */ |
| 133 | + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; |
| 134 | + RCC_OscInitStruct.HSIState = RCC_HSI_ON; |
| 135 | + RCC_OscInitStruct.HSICalibrationValue = 16; |
| 136 | + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; |
| 137 | + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; |
| 138 | + RCC_OscInitStruct.PLL.PLLM = 16; |
| 139 | + RCC_OscInitStruct.PLL.PLLN = 336; |
| 140 | + RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; |
| 141 | + RCC_OscInitStruct.PLL.PLLQ = 2; |
| 142 | + RCC_OscInitStruct.PLL.PLLR = 2; |
| 143 | + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) |
| 144 | + { |
| 145 | + _Error_Handler(__FILE__, __LINE__); |
| 146 | + } |
| 147 | + |
| 148 | + /**Initializes the CPU, AHB and APB busses clocks |
| 149 | + */ |
| 150 | + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |
| 151 | + |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; |
| 152 | + RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; |
| 153 | + RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; |
| 154 | + RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; |
| 155 | + RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; |
| 156 | + |
| 157 | + if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) |
| 158 | + { |
| 159 | + _Error_Handler(__FILE__, __LINE__); |
| 160 | + } |
| 161 | + |
| 162 | + /**Configure the Systick interrupt time |
| 163 | + */ |
| 164 | + HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); |
| 165 | + |
| 166 | + /**Configure the Systick |
| 167 | + */ |
| 168 | + HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK); |
| 169 | + |
| 170 | + /* SysTick_IRQn interrupt configuration */ |
| 171 | + HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); |
| 172 | +} |
| 173 | + |
| 174 | +/* USART2 init function */ |
| 175 | +static void MX_USART2_UART_Init(void) |
| 176 | +{ |
| 177 | + |
| 178 | + huart2.Instance = USART2; |
| 179 | + huart2.Init.BaudRate = 115200; |
| 180 | + huart2.Init.WordLength = UART_WORDLENGTH_8B; |
| 181 | + huart2.Init.StopBits = UART_STOPBITS_1; |
| 182 | + huart2.Init.Parity = UART_PARITY_NONE; |
| 183 | + huart2.Init.Mode = UART_MODE_TX_RX; |
| 184 | + huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; |
| 185 | + huart2.Init.OverSampling = UART_OVERSAMPLING_16; |
| 186 | + if (HAL_UART_Init(&huart2) != HAL_OK) |
| 187 | + { |
| 188 | + _Error_Handler(__FILE__, __LINE__); |
| 189 | + } |
| 190 | + |
| 191 | +} |
| 192 | + |
| 193 | +/** Configure pins as |
| 194 | + * Analog |
| 195 | + * Input |
| 196 | + * Output |
| 197 | + * EVENT_OUT |
| 198 | + * EXTI |
| 199 | +*/ |
| 200 | +static void MX_GPIO_Init(void) |
| 201 | +{ |
| 202 | + |
| 203 | + GPIO_InitTypeDef GPIO_InitStruct; |
| 204 | + |
| 205 | + /* GPIO Ports Clock Enable */ |
| 206 | + __HAL_RCC_GPIOC_CLK_ENABLE(); |
| 207 | + __HAL_RCC_GPIOH_CLK_ENABLE(); |
| 208 | + __HAL_RCC_GPIOA_CLK_ENABLE(); |
| 209 | + __HAL_RCC_GPIOB_CLK_ENABLE(); |
| 210 | + |
| 211 | + /*Configure GPIO pin Output Level */ |
| 212 | + HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET); |
| 213 | + |
| 214 | + /*Configure GPIO pin : B1_Pin */ |
| 215 | + GPIO_InitStruct.Pin = B1_Pin; |
| 216 | + GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; |
| 217 | + GPIO_InitStruct.Pull = GPIO_NOPULL; |
| 218 | + HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct); |
| 219 | + |
| 220 | + /*Configure GPIO pin : LD2_Pin */ |
| 221 | + GPIO_InitStruct.Pin = LD2_Pin; |
| 222 | + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; |
| 223 | + GPIO_InitStruct.Pull = GPIO_NOPULL; |
| 224 | + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; |
| 225 | + HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct); |
| 226 | + |
| 227 | + /* EXTI interrupt init*/ |
| 228 | + HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0); |
| 229 | + HAL_NVIC_EnableIRQ(EXTI15_10_IRQn); |
| 230 | + |
| 231 | +} |
| 232 | + |
| 233 | +/* USER CODE BEGIN 4 */ |
| 234 | + |
| 235 | +/* USER CODE END 4 */ |
| 236 | + |
| 237 | +/** |
| 238 | + * @brief This function is executed in case of error occurrence. |
| 239 | + * @param None |
| 240 | + * @retval None |
| 241 | + */ |
| 242 | +void _Error_Handler(char * file, int line) |
| 243 | +{ |
| 244 | + /* USER CODE BEGIN Error_Handler_Debug */ |
| 245 | + /* User can add his own implementation to report the HAL error return state */ |
| 246 | + while(1) |
| 247 | + { |
| 248 | + } |
| 249 | + /* USER CODE END Error_Handler_Debug */ |
| 250 | +} |
| 251 | + |
| 252 | +#ifdef USE_FULL_ASSERT |
| 253 | + |
| 254 | +/** |
| 255 | + * @brief Reports the name of the source file and the source line number |
| 256 | + * where the assert_param error has occurred. |
| 257 | + * @param file: pointer to the source file name |
| 258 | + * @param line: assert_param error line source number |
| 259 | + * @retval None |
| 260 | + */ |
| 261 | +void assert_failed(uint8_t* file, uint32_t line) |
| 262 | +{ |
| 263 | + /* USER CODE BEGIN 6 */ |
| 264 | + /* User can add his own implementation to report the file name and line number, |
| 265 | + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
| 266 | + /* USER CODE END 6 */ |
| 267 | + |
| 268 | +} |
| 269 | + |
| 270 | +#endif |
| 271 | + |
| 272 | +/** |
| 273 | + * @} |
| 274 | + */ |
| 275 | + |
| 276 | +/** |
| 277 | + * @} |
| 278 | +*/ |
| 279 | + |
| 280 | +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
0 commit comments